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  • Articles  (112)
  • Triticum aestivum  (70)
  • Potassium  (43)
  • Springer  (112)
  • American Geophysical Union
  • American Geophysical Union (AGU)
  • Annual Reviews
  • 1980-1984  (112)
  • 1935-1939
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (112)
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  • Articles  (112)
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  • Springer  (112)
  • American Geophysical Union
  • American Geophysical Union (AGU)
  • Annual Reviews
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  • 1
    Electronic Resource
    Electronic Resource
    Cation exchange capacity of plant roots in relation to nutrients uptake by shoot and grain as influenced by age (1980)
    Springer
    Plant and soil 55 (1980), S. 215-224 
    Details
    ISSN: 1573-5036
    Keywords: CEC ; Iron ; Manganese ; Nitrogen ; Organic matter ; Paddy ; Phosphorus ; Potassium ; Uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Four varieties of each paddy and wheat crops were grown in pots to see their cation exchange capacities of roots and their relationships with the uptake of nutrients by shoot and grain at different physiological growth stages. The results are summarised, as follows: (i) The cation exchange capacity of roots was maximum at tillering stage which continued to decrease with an increase in the age of plants. At early stages of plant growth, significant differences in the root CEC of different varieties of paddy and wheat were recorded but the differences became almost narrow in later stages of plant life and ultimately the CEC of roots became almost similar, in all the varieties as the crops reached to maturity. Higher root CEC of paddy varieties were observed than wheat varieties throughout their physiological growth. (ii) Uptake of phosphorus, potassium, iron and manganese by shoot and grain was found significantly and positively correlated with the CEC of roots in most of the varieties of both, paddy and wheat crops throughout their plant life.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181801
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of different fertilizers on nett gain or loss of soil nitrogen in long-term manure and fertilizer applications (1980)
    Springer
    Plant and soil 57 (1980), S. 159-165 
    Details
    ISSN: 1573-5036
    Keywords: Crop rotations ; Fertilizers ; Lime ; Manures ; Nitrogen ; Nutrient ; Phosphorus ; Potassium ; Removal ; Weedicide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The nett gain or loss of total soil nitrogen was worked out from a long-term manure and fertilizer experiment conducted for seven years and still continuing at Ranchi Agricultural College, Kanke, Ranchi India. The total nitrogen in soil showed a deficit balance where lower and unbalanced doses of fertilizers were applied. Increasing levels of fertilizer combinations with lime removed the highest amount of nitrogen in intensive cropping. The nett loss was highest (95 kg/ha) in case of control, at 100% NPK the nett gain was 37 kg N per ha, and at 150% NPK 72 kg N per ha which was the highest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02211675
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of acid irrigation and liming on two clones of Norway spruce (1980)
    Springer
    Plant and soil 57 (1980), S. 305-321 
    Details
    ISSN: 1573-5036
    Keywords: Aluminium ; Acid precipitation ; Calcium ; Calcium carbonate ; Clone ; Iron ; Magnesium ; Manganese ; Nitrogen ; Picea abies ; Phosphorus ; Potassium ; Sulphate ; Sulphur
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effect of acid irrigation on the growth of rooted cuttings ofPicea abies (L.) Karst, was investigated in a pot experiment lasting 3 years. It involved two clones of Norway spruce, H 253 Bogstad I and H 254 Bogstad II. Irrigation water of pH 5.4, 4.0, 3.0 and 2.5 was used. Liming was included in the experiment. After the experimental period, the plants of all treatments were growing reasonably well. However, those plants irrigated at pH 2.5 were slightly discoloured. The plant mortality was only 3% throughout the experiment, and was not connected to acid irrigation. The limiting growth factor was N. All other nutrient elements measured in the plants were close to optimal concentration. Plants irrigated at pH 2.5, and to some extent at pH 3, contained excessively high concentrations of Al, t-S and SO4. The total amount of Ca, Fe and Mn taken up by the plants decreased with increasing soil acidity. The increased growth of clone H 254 relative to H 253, produces a corresponding impression on soil characteristics. Soil acidity is governed by acid irrigation and CaCO3 application, but the clonal effects are also of importance. Norway spruce appears to be tolerant to Al concentrations as high as 50 mmol/kg in the needles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02211689
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of phosphorus and potassium deficiency on keto acid and amino acid content of peanut (Arachis hypogaea L.) leaves (1981)
    Springer
    Plant and soil 59 (1981), S. 159-162 
    Details
    ISSN: 1573-5036
    Keywords: Amino acid ; Deficiency ; Keto acid ; Peanut ; Phosphorus ; Potassium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Lack of both phosphorus and potassuium results in accumulation of all the keto acids and amino acids in 30 days and 20 days old peanut leaves respectively. This is due to te sluggish metabolism of the tissue under P and K deficienty. Decrease of all the keto acids in 20 days old plants suggests that their synthesis might be affecte under P and K deficiency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02183603
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  • 5
    Electronic Resource
    Electronic Resource
    Balance sheet of soil phosphorus and potassium as influenced by intensive cropping and fertilizer use (1981)
    Springer
    Plant and soil 60 (1981), S. 187-193 
    Details
    ISSN: 1573-5036
    Keywords: Fertilizer ; Intensive cropping ; Lime ; Multiple cropping ; Manure ; Nutrient removal ; Nitrogen ; Phosphorus ; Potassium ; Weedicide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The balance sheet of phosphorus and potassium were worked out from a long term manure and fertilizer experiment conducted for eight years and is still continuing at Ranchi Agricultural College, Kanke, Ranchi, India. Increasing levels of fertilizer combination with organic manure and lime give the highest yield as well as removed the highest amount of phosphorus and potassium from the soil and gave the positive gain of soil phosphorus and potassium in intensive cropping. The highest gains of 59.0 and 278.0 kg/ha of phosphorus and potassium respectively were recorded in 150% NPK application.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374103
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  • 6
    Electronic Resource
    Electronic Resource
    Soil beidellite and its relation to problems of potassium fertility and poor response to potassium fertilizers (1981)
    Springer
    Plant and soil 62 (1981), S. 299-303 
    Details
    ISSN: 1573-5036
    Keywords: Beidellite ; Fixation ; Potassium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary X-ray diffraction studies were made on soils with and without potassium fertility problems. All soils with clay fractions containing dominant beidellite or vermiculite showed potassium deficiency and lack of response to potassium fertilizer applications. All of the soils containing dominant montmorillonite or other clay minerals contained adequate potassium; on none of these, poor potassium response was reported. Special management practices are needed on the beidellitic and vermiculitic soils to increase potassium and ammonium fertilizer efficiency. Dominance of beidellite in the clay fraction should be reflected in soil classification. Establishment of a ‘beidellite’ family differentiating criterion in the Soil Taxonomy is proposed for this purpose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374093
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  • 7
    Electronic Resource
    Electronic Resource
    Distributional gradients and variability of macroelement concentrations in the crowns of plantation grownPinus resinosa (AIT.) (1981)
    Springer
    Plant and soil 63 (1981), S. 345-353 
    Details
    ISSN: 1573-5036
    Keywords: Foliage age ; Nitrogen ; Phosphorus ; Potassium ; Red pine ; Tissue sampling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The vertical distribution of inorganic nutrient concentrations in red pine were dependent on the foliage age. Older foliage did not show an average vertical gradient while younger foliage did show a significant gradient. Horizontal gradients across foliage age classes in a branch whorl were consistent for all branch whorls, but the relative difference between the concentration of the current foliage and foliage three years-old or older was dependent on crown position. Coefficients of variation (CV) did not show a variability gradient in the crown for nitrogen and phosphorus. Variability of potassium tended to decrease as foliage age increased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370035
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  • 8
    Electronic Resource
    Electronic Resource
    Effects of a soil fulvic acid on the growth and nutrient content of cucumber (Cucumis sativus) plants (1981)
    Springer
    Plant and soil 63 (1981), S. 491-495 
    Details
    ISSN: 1573-5036
    Keywords: Calcium ; Copper ; Flowers ; Iron ; Leaves ; Magnesium ; Nitrogen ; Nutrient uptake ; Phosphorus ; Potassium ; Koots ; Shoots ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Cucumber (Cucumis sativus) plants were grown in Hoagland solution to which 20 to 2000 ppm of a soil fulvic acid (FA) were added. The addition of 100 to 300 ppm of FA produced highly significant increases in the growth and development of above and below ground plant parts, in the uptake of nutrient elements (N, P, K, Ca, Mg, Cu, Fe and Zn), and in the formation of numbers of flowers per plant. Effects of adding 500 and more ppm of FA were less beneficial.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370049
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  • 9
    Electronic Resource
    Electronic Resource
    Nutrition ofPinus caribaea in its native savanna habitat (1982)
    Springer
    Plant and soil 64 (1982), S. 381-391 
    Details
    ISSN: 1573-5036
    Keywords: Atmosphere ; Calcium ; Fertility ; Forestry ; Magnesium ; Nitrogen ; Nutrients ; Phosphorus ; Pinus caribaea ; Potassium ; Savanna ; Sodium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Fertility levels in soils beneathPinus caribaea trees were examined in the Mountain Pine Ridge savannas, Belize, where fire control has precipitated the development of pine woodland. Slight surface soil enrichment was recorded beneath pine canopies, but to levels well below those found beneath associated hardwoods. Estimates of total nutrient pools beneath trees showed modest cation accumulation beneath a 73 year old tree but some defecits in Ca and Mg beneath a 24 year old tree. A tap root cutting experiment on trees of the same species revealed no significant declines in foliar nutrient levels after 19 months. It is concluded that no pronounced long-term deterioration in soil fertility levels is developing beneath stands ofP. caribaea in the savanna, although some temporary nutrient declines may exist beneath young pine stands. Atmospheric inputs are the most likely source of nutrient accretion and it is suggested that the establishment of hardwood associates with pine may enhance the rates of nutrient capture from this source.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372521
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  • 10
    Electronic Resource
    Electronic Resource
    Nutrient accumulation byPinus caribaea in its native savanna habitat (1982)
    Springer
    Plant and soil 69 (1982), S. 105-118 
    Details
    ISSN: 1573-5036
    Keywords: Calcium ; Fertility ; Forestry ; Magnesium ; Nitrogen ; Nutrients ; Phosphorus ; Pinus caribaea ; Potassium ; Savanna
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Concentrations of P, N, K, Ca, and Mg in above-ground tissues ofP. caribaea were sampled in the species'native savanna habitat. Concentrations were relatively low, but some evidence of higher consumption of K and Ca was found in trees grown on more fertile soils. Regressions were developed to predict the quantities of nutrients sequestered in above-ground tree tissues, and estimates made of the quantities stored in above-ground stands of this species in its native habitat and in several plantations elsewhere. Estimates were also made of the nutrient removals to be expected by harvesting these stands in different ways. Nutrient quantities stored in stands generally exceed those extractable from savanna surface soils, and it is suggested that inputs from the atmosphere are the most probable alternate nutrient source. A comparison of these inputs for tropical areas with the quantities required for stand growth in the savanna, and harvesting removals, suggests that an adequate supply of all elements except P exists, provided that capture by pine is effective. However, atmospheric inputs generally fall below the storage and harvest removal rates for fast growing exotic plantations of this species suggesting that multiple rotations of these plantations at current growth rates may not be feasible without artifical fertilization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02185709
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  • 11
    Electronic Resource
    Electronic Resource
    Effects of waterlogging on young wheat plants (Triticum aestivum L.) and on soil solutes at different soil temperatures (1982)
    Springer
    Plant and soil 69 (1982), S. 311-326 
    Details
    ISSN: 1573-5036
    Keywords: Aeration ; Calcium ; Carbon dioxide ; Ethylene ; Nitrate ; Nitrite ; Nitrous oxide ; Oxygen ; Potassium ; Roots ; Triticum aestivum ; Waterlogging ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary We report a study of the mechanism by which the response of plants to waterlogging can be modified by soil temperature. Wheat was grown initially in well-aerated soil in a controlled environment room before the soil was flooded with aerated, deionized water. The soil temperature was maintained constant in the range 6–18°C while the air temperature was at 14°C. Waterlogging damage was greater in plants at the higher soil temperatures when the plants were compared at the same chronological age. However, when compared at the same growth stage, the response to soil temperature was little differenti.e. plants subjected to waterlogging for a long time at low soil temperatures exhibited a similar reduction in growth and other properties as those subjected briefly at higher temperatures. The concentration of dissolved oxygen in the soil solution declined rapidly at all temperatures, being almost zero after 36 h waterlogging. Temperature affected rates of change of the concentrations of dissolved carbon dioxide, ethylene, nitrous oxide, nitrite, nitrate, calcium and potassium. The importance of soil-and plant-determined properties in the waterlogging response of plants at different temperatures are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372453
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  • 12
    Electronic Resource
    Electronic Resource
    Removal of nitrogen, phosphorus and potassium by rice-wheat double cropping system as affected by duration of rice variety, methods of planting rice and levels and sources of nitrogen (1983)
    Springer
    Plant and soil 70 (1983), S. 287-295 
    Details
    ISSN: 1573-5036
    Keywords: Neem cake coated urea ; Nitrogen ; Phosphorus ; Potassium ; Rice ; Rice-wheat ; Sulphur coated urea ; Urea ; Urea briquette
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Removal of NPK in the rice-wheat double cropping system was studied in a field experiment conducted for two crop years (1977–79) at the Indian Agricultural Research Institute, New Delhi. The double cropping system producing 8×103 kg/ha/yr grain (4.5×103 kg rice and 3.5×103 kg wheat) removed 166 kg N, 35 kg P and 174 kg K per hectare per year. Thus the rice-wheat double cropping system heavily depletes the soils of their NPK content and calls for balanced fertilization for continued high production. NPK removal was higher when a 135-day duration rice variety was grown than when a 105-day duration variety was grown, because the former resulted in overall (rice + wheat) more grains and straw. Similarly grain and straw yield and NPK removal was more with transplanted rice than when sprouted rice seeds were sown on puddled seedbed; the latter method was in turn superior to direct drilling. Use of urea briquette, neem cake coated urea and sulphur coated urea gave higher yields and resulted in removal of more NPK than prilled urea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374787
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  • 13
    Electronic Resource
    Electronic Resource
    The search for and interpretation of genetic controls that enhance plant growth under deficiency levels of a macronutrient (1983)
    Springer
    Plant and soil 72 (1983), S. 335-350 
    Details
    ISSN: 1573-5036
    Keywords: Calcium ; Nutrient stress ; Phosphorus ; Potassium ; Root growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Techniques developed to measure growth of tomatoes and beans under limiting amounts of either P, K or Ca in solution culture reveal differences among strains. Genetic analysis permits estimates of gene action for control of efficiency and the isolation of improved segregants. The genetic isolates have value in studying mechanisms contributing to uptake, transport and utilization processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181972
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  • 14
    Electronic Resource
    Electronic Resource
    Effects of high concentrations of sodium chloride and polyethylene glycol on the growth and ion absorption in plants (1983)
    Springer
    Plant and soil 75 (1983), S. 87-93 
    Details
    ISSN: 1573-5036
    Keywords: Absorption ; Barley ; Excised roots ; Multi-compartment transport box ; Phosphate ; Potassium ; Radioisotopes ; Translocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of high concentrations of sodium chloride (NaCl) and polyethylene glycol (PEG) on the absorption and translocation of K and P were examined using a multi-compartment transport box with excised roots of barley. The results were as follows: When no Ca was added, a high concentration of NaCl inhibited the absorption and translocation of K and P, although the inhibition of K was more pronounced as compared with that of P. The inhibitory effect of PEG was smaller than that of NaCl. On the other hand, the drastic inhibition of ion absorption and translocation of P was increased dramatically up to the control level by Ca, even in a high NaCl condition. The results, especially in the presence of Ca, are quite consistent with water culture experiments in the preceding paper15, which reported a less inhibitory effect of salt and water stresses on P absorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02178616
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  • 15
    Electronic Resource
    Electronic Resource
    Selection for resistance to Septoria nodorum in wheat (1980)
    Springer
    Euphytica 29 (1980), S. 337-346 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Septoria nodorum ; Leptosphaeria nodorum ; glume blotch ; resistance ; tolerance ; escape ; selection ; selection indexes ; phenotypic correlations ; genotypic correlations ; heritability ; grain yield ; heading date ; plant height ; seed weight ; seed weight %
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A population of 572 F2 derived F3 lines from six crosses were used to estimate parameters relevant to selection for resistance to Septoria nodorum of wheat. Lines were grown in disease free (fungicide sprayed) and inoculated microplots in 2 replications of a split-plot design in a single environment in 1977. Average yield reduction due to disease was approximately 50%; this was associated with an average septoria score of 50% on the flag leaf, an average septoria score of 42% on the head, and a reduction of 37% in seed weight. Low S. nodorum scores were correlated with late heading date, tall plant height, high grain yield, and high seed weight in diseased plots, and high seed weight % (seed weight in diseased plots expressed as a percentage of seed weight in fungicide sprayed plots). Restricted selection indexes were used to study the relative contributions of disease escape, true resistance, and tolerance to variability in grain yield in diseased plots, seed weight in diseased plots, and seed weight %. True resistance appeared to be the most important factor causing variation in grain yield in diseased plots and seed weight %. Tolerance and escape seemed to be more important for seed weight in diseased plots. Heritabilities of S. nodorum scores on the flag leaf and head were 63% and 52%, respectively. Leaf and head scores could be used most effectively as selection criteria to upgrade resistance in a population before harvest. Selection for high seed weight % slightly reduced yields in disease free plots, although yield in diseased plots and seed weight in diseased plots were increased. However, selection for increased yield or increased seed weight in diseased plots improved yield in disease free plots. It is suggested that direct selection for yield or seed weight in diseased plots is likely to achieve more desirable goals than selection for seed weight %.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00025132
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  • 16
    Electronic Resource
    Electronic Resource
    Selection for yield in small plots of spring wheat (1982)
    Springer
    Euphytica 31 (1982), S. 549-564 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; grain yield ; selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Four selection experiments were sown: single-row plots with single row-spacing (≃20 cm), single-row plots with double row spacing (≃40 cm), three-row plots and six-row plots both with single row-spacing (≃20 cm). Selection entries were mimiced by 16 different varieties or advanced breeding lines, which were also sown in a yield trial. Each experiment was laid out as a 4-times replicated randomized block design. Row length was 2 m. Alley borders and border-rows of multiple-row plots were harvested separately to evaluate the effects of different harvesting procedures on the selection efficiency. Removal of alley borders was found to be disadvantageous, since the gain in precision was more than offset by the loss in sampled area. Wide spacing of single-row plots improved the selection efficiency in comparison with normal spaced single-row plots. In multiple-row plots the selection efficiency was not improved by harvesting only the central rows. For gross plot yield (= yield of net plot + yield of alley borders) the differences in selection efficiency between the various selection plot-types were explained on the basis of the genetic variance, the environmental variance and the coefficient of genetic correlation with ‘farm’ yield as determined in the yield trial.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039193
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  • 17
    Electronic Resource
    Electronic Resource
    Evidence for basic homology between wheat and rye chromosomes (1983)
    Springer
    Euphytica 32 (1983), S. 217-223 
    Details
    ISSN: 1573-5060
    Keywords: Hexaploid triticale ; Secale cereale ; rye ; Triticum aestivum ; wheat ; heterochromatin ; chromosome association
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In the hexaploid triticale (× Triticosecale Wittmack) cultivar Rosner chromosome 2R lacks the prominent heterochromatic bands of both telomeres. This modified 2R chromosome is capable of pairing in a high frequency with wheat chromosomes. It is hypothesized that the accumulation of heterochromatin at the telomeres of rye chromosomes may have contributed to the isolation of the wheat and rye genera by inhibiting pairing between wheat and rye chromosomes.
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    URL: http://dx.doi.org/10.1007/BF00036882
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  • 18
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    Electronic Resource
    Should selection for yield in saline regions be made on saline or non-saline soils? (1983)
    Springer
    Euphytica 32 (1983), S. 431-438 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Triticum aestivum ; wheat ; T. turgidum ; durum wheat ; X Triticosecale ; triticale ; salt tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Saline soils are typically very patchy in their salinity. The yield of crops growing on them is similarly patchy. This paper argues that because most of the yield from such soils comes from the least saline areas, the best breeding strategy for improving the overall yield of crops growing on them is to select for high yield on non-saline soils. This conclusion derives from comparing the effects that four different breeding goals, namely: (1) a 10% increase in yield on non-saline soils, (ii) a 20% increase in the threshold salinity that first reduces yield, (iii) a doubling of yield at an electrical conductivity of the saturation extract (ECe) of 20 dS/m and (iv) a combination of (i) and (iii), would have on total yield. The effects of achieving these goals in barley, common wheat, durum wheat and triticale in fields exhibiting different salinities are predicted from actual yields of these species grown on different salinities in the field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021452
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  • 19
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    Relationship between kernel color and protein content of hard red x hard white winter wheat progeny (1983)
    Springer
    Euphytica 32 (1983), S. 617-624 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; kernel color ; protein content ; inheritance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Utilization of high-protein hard red wheat germplasm in breeding high-protein hard white winter wheats for the U.S. Great Plains raised concern regarding possible genetic relationships between kernel color and protein content. Segregating F3 and F4 populations from reciprocal crosses and backcrosses involving high-protein hard red winter wheat cultivar Plainsman V and normal-protein hard white winter wheat line KS75216 were examined. Nonsignificant regression and correlation coefficients in the F3 generations of KS75216/Plainsman V, KS75216//KS75216/Plainsman V and Plainsman V//KS75216/Plainsman V indicated the absence of genetic relationships between kernel color and protein content. Therefore, despite the presence of genes for protein content and kernel color on the same chromosomes (3A, 3B and 3D), kernel color and protein content appeared as independent traits. A small but significant negative relationship between white kernel color and high protein in Plainsman V/KS75216 was attributable to the possible presence of alien genetic material in the parentage of Plainsman V. Chi-square tests indicated that Plainsman V is a mixture of genotypes for kernel color; most genotypes carry two dominant genes for red color and a few carry one or three. Genetic control of grain protein appeared to be complex. Partial dominance for high protein was indicated in the F3 generation but a generally continuous distribution and transgressive segregation also suggested other genes functioned additively. Heritability estimates by parent-offspring (F3-F4) regression were sufficiently high to ensure genetic progress in the selection of high-protein lines in the red x white wheat crosses. We concluded that development of high-protein cultivars is as feasible for white wheats as for red wheats.
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    URL: http://dx.doi.org/10.1007/BF00021475
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  • 20
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    The character brown ear of bread wheat: A review (1983)
    Springer
    Euphytica 32 (1983), S. 299-310 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; ear colour ; glume colour ; genetics ; linkage ; chromosomal location ; geographical distribution ; homeoallelic genes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A summary of the brown ear character of bread wheat is presented. In most varieties this character is conditioned by a (semi)dominant gene identified as Rg on 1BS. This gene seems to be widespread, from the viewpoint of evolution, probably because it is an ‘old’ gene. There are no indications that the presence of the gene and hence the presence of a brown ear is advantageous or disadvantageous to the carrier wheat plant. Some linkage relations are described. More research is needed to establish whether all varieties with one gene for brown ear carry Rg, to investigate the varieties with a non-monogenic genetic system and to identify more associations between brown ear and other characters. It should also further be investigated whether within T. spelta another gene for brown ear is present and, if so, whether this gene is on chromosome 1AS and linked to Hgl, the gene for hairy glume.
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    The impact of plant physiology on Australian wheat breeding (1983)
    Springer
    Euphytica 32 (1983), S. 743-748 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; plant physiology ; plant breeding ; Australia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Major changes in the behaviour of the Australian wheat crop over the last one hundred years have been associated with three major gene groupings. The significance of major genes in monitoring response to vernalization, photoperiod and gibberellin, reveals a more optimistic future for breeding programmes where simple genetic and physiologic studies are integrated within those programmes. A revised classification of growth habit is presented in the appendix.
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    URL: http://dx.doi.org/10.1007/BF00042154
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    Yield responses by modern wheat genotypes to phosphate fertilizer and their implications for breeding (1984)
    Springer
    Euphytica 33 (1984), S. 81-89 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; grain yield ; phosphate response ; height ; harvest index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The response to phosphate fertilizer by modern wheat genotypes was examined in the field under natural rainfall in three seasons. Models were developed which show that grain yield was positively correlated with biological yield and harvest index. In one of the seasons, which was relatively dry, shorter statured wheats gave higher yields at each level of applied phosphate. Higher levels of phosphate tended to offset the reduction in yield associated with late heading and the importance of biological yield on grain yield. The genotypes which produced the largest number of grains m-2 produced the highest yields. Implications for plant breeding programs are discussed.
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    URL: http://dx.doi.org/10.1007/BF00022753
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    Genetic and cytogenetic studies with a male sterile mutant of common wheat (Triticum aestivum) (1984)
    Springer
    Euphytica 33 (1984), S. 107-112 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; male sterility ; meiotic analyses ; gene mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Genetic and cytogenetic studies were done on a male sterile mutant of the wheat variety ‘Probus’. Association of the 4A chromosome carrying the ms gene was studied in the F1 of the male sterile ‘Probus’ with ‘Chinese Spring’ ditelo 4AS, with ‘Transec’ and with line ‘T4AS-DRS’ respectively. The presumption that the genetic male sterility of the mutant was due to a terminal deletion of the short arm of chromosome 4A could be confirmed. Linkage studies showed that the ms gene was at 17 map units from the dwarfing gene (Rht3) of ‘Minister dwarf’. This allows selection of short male sterile plants at the seedling stage.
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    SDS-PAGE of the high-molecular-weight subunits of wheat glutenin and the characterization of 1R (1B) substitution and 1BL/1RS translocation lines (1984)
    Springer
    Euphytica 33 (1984), S. 3-8 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; glutenin ; high molecular-weight subunits of glutenin ; SDS-PAGE ; 1R(1B) substitution identification ; 1BL/1RS translocation identification ; bread-making quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The high-molecular-weight subunits of glutenin from wheat 1R(1B) substitution and 1BL/1RS translocation lines were fractionated by SDS-PAGE. Two new subunits denoted R1 and R2 were characterized in 1R(1B) substitution, but not in 1BL/1RS translocation lines. R1 and R2 were proved to be rye proteins by 2d electrophoresis (NEPHGE x SDS-PAGE). In contrast to literature citations it was demonstrated that the cultivar Winnetou is a 1R(1B) substitution line and the cultivars Clement and Mildress both are 1BL/1RS translocation lines.
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    A recessive resistance gene for yellow rust (Puccinia striiformis West.) in bread wheat (Triticum aestivum L.) (1984)
    Springer
    Euphytica 33 (1984), S. 561-562 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; common wheat ; Puccinia striiformis ; yellow rust ; stripe rust ; resistance ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three lines derived from the old ‘dirty’ Dutch land variety Gelderse Ris were resistant against race 66(70)EO(16) of yellow rust. It was found that this resistance was conditioned by one recessive gene provisionally coded yrGR.
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    URL: http://dx.doi.org/10.1007/BF00021157
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    Physiological responses of six bread wheat and durum wheat genotypes to water stress (1984)
    Springer
    Euphytica 33 (1984), S. 757-767 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Triticum durum ; durum wheat ; water stress ; photosynthesis ; stomatal resistance ; leaf water potential ; water efficiency ; breeding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The responses of six wheat genotypes to water stress were analysed. Soil moisture (H), leaf water potential (Ψw), photosynthesis (PN), stomatal resistance (rs) and transpiration (T) were measured during a water stress. The genotypes investigated differed in their stress avoidance (Ψw-H relationship) and their stress tolerance (PN-Ψw and rs-Ψw relationships). The most important differences observed concern the mechanisms of tolerance at low leaf water potential: two varieties, Haurani 27 and Baalback, can then maintain a high photosynthetic activity. These observations are in agreement with the drought resistance characteristics already known for these genotypes. Possible applications to wheat breeding are considered
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    URL: http://dx.doi.org/10.1007/BF00021902
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    Plant nitrogen distribution in wild tetraploid (Triticum turgidum dicoccoides) and hexaploid wheat (Triticum aestivum) (1984)
    Springer
    Euphytica 33 (1984), S. 641-649 
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    ISSN: 1573-5060
    Keywords: Triticum dicoccoides ; wild emmer ; Triticum aestivum ; bread wheat ; nitrogen uptake ; plant nitrogen distribution ; translocation efficiency ; harvest index ; domestication ; evolution ; yield components ; grain protein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Differences were found in total nitrogen uptake and its pattern of distribution in the main tiller amongst five lines of wild tetraploid wheat (Triticum turgidum dicoccoides) and between it and two hexaploid wheats (Triticum aestivum) under low (48 ppm) and higher (240 ppm) levels of soil nitrogen. Under the low soil nitrogen level the hexaploids had higher amounts of total nitrogen in the main tiller than the dicoccoides lines, but under the higher soil nitrogen level, three of the dicoccoides lines had significantly (P〈0.01) higher, and the other two lines, similar amounts as the hexaploids. The total amount of grain nitrogen in the hexaploids was significantly (P〈0.01) higher than the five dicoccoides under the low nitrogen soil level but under the higher level, two of the dicoccoides lines had similar amounts as one of the hexaploids (cv. Bencubbin) but significantly (P〈0.01) lower than the other (cv. Argentine IX). The efficiency of nitrogen translocation to the grain was significantly (P〈0.01) lower in a primitive, compared with four cereal forms of dicoccoides under both low and high levels of soil nitrogen. The cereal forms of dicoccoides, while similar in nitrogen translocation efficiency under low soil nitrogen as the lower translocation efficiency hexaploid (cv. Bencubbin), were significantly (P〈0.01) and substantially lower than it under the higher soil nitrogen level.
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    Effect of root contact with short-chain aliphatic acids on later wheat growth (1983)
    Springer
    Plant and soil 74 (1983), S. 369-377 
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    ISSN: 1573-5036
    Keywords: Acetic acid ; Inhibition ; Wheat growth ; Tillering ; Root growth ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Studies were conducted to determine the effect of and duration of the effect of alliphatic acids on winter wheat (Triticum aestivum L.) seedling root growth, shoot growth, and tillering. Winter wheat seedlings grown in contact with unbuffered solutions of 2 mM or greater acetic or 0.5 mM or greater propionic or butyric acid for 3 days showed decreased root and, in general, shoot growth. Buffering the medium partially alleviated the problem. Removing the seedling from the acid medium and growing it in a nutrient medium resulted in accelerated root growth, compared with the control, while shoot growth was permanently inhibited during this study. Seedling wheat, grown with one root in contact with concentrations of acetic acid ranging from 0–16 mM and the other roots in aliphatic acid-free medium, grew at the same rate as the control. Seedling wheat grown for 3 days in 2 and 4 mM acetic acid medium showed a more rapid formation of the first stem tiller (T1) than did the control. Concentrations of 6 and 8 mM acetic acid appeared to delay T1 tiller formation through the first 18 days after germination, while only 10 mM acetic acid reduced T1 tiller formation by 30% 20 days after germination. The second stem tiller (T2) was not affected by previous exposure to acetic acid. The results of these laboratory studies indicate that short-term exposure of seedling winter wheat to short-chain aliphatic acids can result in permanent shoot and tiller damage and not in permanent root damage as previously thought. These results could explain the poor performance of no-till seeded winter wheat when growing through heavy crop residues that are producing shortchain aliphatic acids during decomposition.
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    Factors of plant nutrient availability relevant to soil testing (1982)
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    Plant and soil 64 (1982), S. 129-138 
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    ISSN: 1573-5036
    Keywords: Ammonium ; Buffering power ; Nitrate ; Nutrient availability ; Phosphate ; Potassium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In most arable soils the nitrate availability depends mainly on the quantity of nitrate present in the rooting zone at the beginning of the growing season. Easily mineralizable organic N and the release of non-exchangeable NH4 from clay minerals may in addition control the nitrogen availability during a season. In flooded soils, ammonium is the major form of nitrogen absorbed by plants. Ammonium dynamics in these soils is similar to that of potassium. The availability of both is controlled mainly by the intensity and buffering power for ammonium or potassium, respectively. Basically, intensity of the supply and buffering power for phosphate are the main factors determining the phosphate availability. The determination of the phosphate buffer power, especially in the root zone, however, remains to be difficult. Soil test methods should take into consideration the major factors and processes relevant to the availability of a particular plant nutrient.
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    Effect of sulfur and potassium on zinc absorption by barley (1982)
    Springer
    Plant and soil 64 (1982), S. 393-401 
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    ISSN: 1573-5036
    Keywords: Barley ; Cysteine ; Potassium ; Sulfur ; Translocation ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Maximum uptake of Zn in barley (Hordeum vulgare L.) seedlings occurred from nutrient solutions containing SO4−S at 3.5 ppm and K at 6 ppm. Decreased translocation of Zn from roots to tips was observed when plants were grown with lower levels of S and K. Cysteine substituted for SO4-ion as a source of S in Zn absorption, and more Zn was absorbed with cysteine than with sulfate. The effect of K on Zn absorption seems to be influenced by S nutrition in plants.
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    Utility of phyllosphere N2-fixing micro-organisms in the improvement of crop growth (1982)
    Springer
    Plant and soil 68 (1982), S. 69-74 
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    ISSN: 1573-5036
    Keywords: Azotobacter ; chroococeum ; Derxia ; gumnosa ; Klebsiella ; Nitrogen ; fixation ; Phyllosphere ; Triticum aestivum ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Five highly active N2-fixing strains of Klebsiella isolated from the phyllosphere of tropical plants, KUPBR1, KUPBR2, KUPM, KUP4 and KUP6 along withAzotobacter vinelandii OP,A. chroococcum G40 andDerxia gumnosa were sprayed on the foliage of a high yielding wheat cultivar, Kalyansona. The strains of Klebsiella enhanced dry wt., chrorophyll and nitrogen content, and 1000 grain weight. Grain yield in inoculated plants varied between 19.9 and 25.09 quintals ha−1 against 24.34 quintals with urea. Best results were obtained with KUP4 which when applied at half dose was as effective as 52.5 kg Urea-N ha−1. Azotobacter and Derxia only slightly improved growth and nitrogen content of grain or straw.
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    Response of maize toAzotobacter chroococcum (1982)
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    Plant and soil 69 (1982), S. 265-273 
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    ISSN: 1573-5036
    Keywords: Azotobacter chroococcum ; Fertilizers ; Farmyard manure ; Nitrogen ; Nitrogen fixation ; Potassium ; Phosphorus ; Yields of grain stover ; Zea mays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field trials were conducted during theKharif seasons of 1979 and 1980 to examine the effect of the nitrogen-fixing bacteriumAzotobacter chroococcum (isolate M4) on yields of maize and N-economy. Different levels of nitrogen and farmyard manure (FYM) were supplied to assess their interaction with Azotobacter inoculation. Seed inoculation without fertilization raised grain and stover yields significantly. FYM coupled with inoculation gave higher yields than either could singly. The financial gain due to an increase in grain yield upon applying per ha 80 kg N, 10×103 kg FYM and Azotobacter over the treatment 40N + FYM + Azotobacter was offset by the cost of the additional N; thus, the higher N-application was not economical. Azotobacter inoculation was economically most efficient at lower doses of fertilizer nitrogen which not only increased yields but resulted in a saving of fertilizer N when applied in combination with FYM.
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    Total nitrogen uptake by maize with Azotobacter inoculation (1982)
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    Plant and soil 69 (1982), S. 275-280 
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    ISSN: 1573-5036
    Keywords: Azotobacter chroococcum ; Fertilizers ; Farmyard manure ; Zea mays ; Maize ; Nitrogen ; Nitrogen fixation ; Phosphorus ; Potassium ; Total nitrogen uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The economic feasibility of using cultures of nitrogen fixing microorganisms in programmes to increase crop production, as a selfgenerating source of nitrogen, has been proved beyond doubtviz. Legume-Rhizobium symbiosis and blue green algal ‘fertilizer’ for rice. The extent to which the free living, N-fixing, aerobic, heterotropicAzotobacter chroococcum could replace the application of nitrogenous fertilizer to maize was investigatedin vivo. Total nitrogen uptake (kg ha−1) by maize after inoculation with Azotobacter combined with moderate applications of nitrogen fertilizer and farmyard manure was influenced significantly and resulted in a higher nitrogen concentration in grain and stover along with a higher yield.
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    Studies on the possible role of cation exchange capacity in the soil preference of mosses (1983)
    Springer
    Plant and soil 70 (1983), S. 77-93 
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    ISSN: 1573-5036
    Keywords: Adsorption ; Calcium ; Calcium carbonate ; Cation Exchange Capacity ; Hydrogen ; Magnesium ; Moss ; pH ; Potassium ; Sodium ; Soil preference
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Moss species with a different soil preference with respect to its acidity and carbonate content also differ in their cation exchange capacity (leaf, stem, rhizoid), the acidiphile-calcifuges having lower C.E.C. values than the neutrophile-calcicoles. The higher the C.E.C. value, the more the divalent cations calcium and magnesium tend to be adsorbed as compared to the monovalents sodium and potassium, from an equinormal tetracationic solution. The increase in divalent adsorption is mainly due to calcium. Considering this differential adsorption of calcium and in view of data in literature on membrane characteristics, it appears that among the studied cations calcium is an important factor in the observed soil preference through its presence in the cell wall adsorbed fraction and thus in the membrane environment.
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    Taxonomic character of plant species in absorbing and accumulating alkali and alkaline earth metals grown in temperate forest of Japan (1983)
    Springer
    Plant and soil 70 (1983), S. 367-389 
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    ISSN: 1573-5036
    Keywords: Alkali metals ; Alkaline earth metals ; Barium ; Calcium ; Ceasium ; Lithium ; Magnesium ; Potassium ; Rubidium ; Sodium ; Strontium ; Temperate forest
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Absorption and accumulation of alkali (Li, Na, K, Rb, Cs) and alkaline earth (Mg, Ca, Sr, Ba) metals were investigated as taxonomic characteristics (in 62 plant species). Leaf and soil samples were collected from 9 sites in temperature forest in Japan and the above mentioned elements were analyzed. Considerable differences were found among species in their ability to accumulate alkali and alkaline earth metals. Very high concentrations of Li (45 ppm, D.W.), K (37×103 ppm), Rb (159 ppm) and Cs (8.2 ppm) were detected inLastrea japonica which were about 412, 12, 27 and 6 times higher than those of the species with the lowest concentrations. Na content was high inAcer micranthum (358 ppm) which was 16 times higher than species with the lowest concentration. Other species containing high levels of alkali metals wereHydrangea macrophylla, Struthiopteris niponica, Clethra barbinervis. Mean discrimination ratio (D.R.) for all investigated plant species for Li, Na, Rb, and Cs to K were 1.7, 0.44, 0.9 and 1.8 respectively. High concentrations of alkaline earth metals Ca (36×103 ppm), Sr (345 ppm), and Ba (241 ppm) were found in the leaves ofHydrangea paniculata which were about 31, 84, and 72 times higher than those for the species with the lowest concentration. Mg was very high inStruthiopteris niponica (83×102 ppm). Other species with high concentrations of alkaline earth metals belonged to the genus Viburnum. Mean D.Rs. for Mg, Sr, and Bavs Ca were 1.0, 0.7 and 0.08. Principal component analysis of interrelationships between the mineral content in leaf tissues indicated that these elements could be classified into 2 groups with respect to their accumulation behavior in plants. The alkali metals K, Li, Rb, and Cs behaved similarly in their accumulation in leaves but Na behaved independently. Alkaline earth metals Ca, Mg, Sr, and Ba were also found to behave similarly in their accumulation. Factors scores of 1st and 2nd components revealed three groups of plant species: alkaliphilic, alkaline earthphilic, and neutral (non-accumulators).
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    Ionic interactions in rice plants from dilute solutions (1983)
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    Plant and soil 70 (1983), S. 309-316 
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    ISSN: 1573-5036
    Keywords: Calcium ; Ionic interaction ; Magnesium ; Nutrient solution ; Oryza sativa L. ; Phosphorus ; Potassium ; Rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Ionic interactions may occur as cation-cation interactions, anion-anion interactions, or cation-anion interactions. Greater knowledge of this subject is warranted, due to the intensification of agriculture, in devising efficient fertilization systems. The present study was undertaken to elucidate the interaction among P, K, Ca and Mg absorption by the intact rice (Oryza sativa L.) plants from dilute solutions. The uptake of P was independent of Ca concentrations up-to 250 μM Ca but-there was a small decrease at the higher concentrations. Absorption of K and Mg was stimulated in the presence of Ca ions at low concentrations. But K and Mg absorption was decreased at higher Ca concentrations. Increasing concentrations of K in the nutrient solution depressed P and Ca uptake. Magnesium uptake was stimulated at lower concentrations of K, but at higher concentrations it was also decreased. Similarly, absorption of K and Ca was also decreased with increasing concentrations of Mg. Magnesium at lower concentrations stimulated P uptake but at higher concentraions it was decreased. In the present study maximum growth of rice plants was achieved at about 250μM Ca, 260 μM K, and 33μM Mg in the nutrient solution.
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    Plant genotype differences in the uptake, translocation, accumulation, and use of mineral elements required for plant growth (1983)
    Springer
    Plant and soil 72 (1983), S. 175-196 
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    ISSN: 1573-5036
    Keywords: Boron ; Calcium ; Copper ; Genotypic differences ; Iron ; Magnesium ; Manganese ; Mineral nutrition ; Molybdenum ; Nitrogen ; Phosphorus ; Plant adaptation ; Plant breeding ; Potassium ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Plant genotypes differ in their uptake, translocation, accumulation, and use of mineral elements. Examples of genotype differences to iron, nitrogen, phosphorus, potassium, calcium, magnesium, manganese, boron, copper, zinc, and molybdenum are discussed. Current knowledge is sufficient to indicate that many crop plants can be improved for the efficient use of mineral elements and better adaptation to mineral stress conditions.
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    Nutrient inflows into apple roots (1983)
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    Plant and soil 71 (1983), S. 371-380 
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    ISSN: 1573-5036
    Keywords: Apple ; Calcium ; Copper ; Iron ; Irradiance ; Magnesium ; Manganese ; Nitrogen ; Nutrient uptake rate ; Phosphorus ; Potassium ; Scion effects ; Season ; Source of nitrogen ; Temperature ; Tissue nutrient level ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The rates of uptake of nutrients from solution by apple roots were measured (a) in a root laboratory, using intact roots of mature trees growing under field conditions and (b) in controlled environment using young trees. Maximum nitrate inflows into Discovery/M.9 roots under field conditions were only slightly lower than those into roots of the same genotype in controlled environment, but up to 80 times lower than those into roots of Worcester Pearmain seedlings. At any given external P concentration, P inflows into roots of field-grown trees were about 2.5-times lower than those into the roots of young trees in controlled environment. Nitrate inflows were constant above a solution concentration of 20 mmol m−3 in both field-grown and small trees. In both cases, phosphate inflows increased linearly with solution concentration up to 10 mmol m−3. Among the various plant and environmental factors influencing nutrient uptake characteristics of apple roots were: the scion genotype, tissue nutrient levels, root origin, the form in which N is supplied, level of irradiance of the shoot, root temperature and the season of the year. The effects of these factors are illustrated with examples.
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    Efficiency of nitrogen, phosphorus, and potassium use by corn, sunflower, and sugarbeet for the synthesis of organic matter (1983)
    Springer
    Plant and soil 72 (1983), S. 219-223 
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    ISSN: 1573-5036
    Keywords: Corn ; Nitrogen ; Phosphorus ; Potassium ; Sugarbeet ; Sunflower
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A three-year experiment was conducted in natural conditions on chernozem soil to examine the efficiency of nitrogen, phosphorus, and potassium use by corn (C4 type), sunflower and sugarbeet (C3 type) grown in optimum conditions of mineral nutrition (N100P100K100 kg/ha). Plant materials were analysed for the concentration of nitrogen, phosphorus, and potassium and dry matter mass per individual plant parts and the whole plant. Leaves of different age, of all three plant species, were analysed to find eventual differences in the efficiency of use of nitrogen, phosphorus, and potassium in the synthesis of organic matter depending on leaf age. It was found that corn had the lowest concentration of the elements studied but the highest dry matter mass. In other words, corn was more efficient than sunflower or sugarbeet in the use of these elements for the synthesis of an organic matter unit. Such results were arrived at in both sets of analyses, i.e., the analyses of leaves performed in the course of ontogenetic plant development as well as the analyses of leaves of different age.
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    Nutritional differentiation within the speciesDittrichia viscosa W. Greuter, between a population from a calcareous habitat and another from an acidic habitat (1983)
    Springer
    Plant and soil 72 (1983), S. 297-303 
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    ISSN: 1573-5036
    Keywords: Calcicole ; Calcifuge ; Calcium ; Dittrichia viscosa ; Magnesium ; Potassium ; Sodium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Dittrichia viscosa is a Mediterranean bush widespread on various soil types. It is shown that the plants from a calcareous habitat (G plants) and those from an acidic habitat (M plants) differ in their ability to accumulate various cations when growing in the same experimental conditions. On this acidic soil the G plants accumulate more Ca and less K than the M plants. On a calcareous soil the response is reversed; it is the M plants which contain more Ca and often less K. This behaviour on each of the soils is typically that of a calcifuge for M and a calcicole for G. The two types of plants also differ in their affinity for Mg and Na. The ubiquity of the species could well be explained at least partially by genetic differentiation in the ability of plants to select ions.
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    Copper deficiency inPinus radiata planted in a podzol in Victoria, Australia (1984)
    Springer
    Plant and soil 77 (1984), S. 73-86 
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    ISSN: 1573-5036
    Keywords: Fertiliser ; Foliar analysis ; Nitrogen ; Phosphorus ; Pinus radiata ; Potassium ; Soil organic matter ; Steenbjerg effect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Copper deficiency inPinus radiata in Gippsland, Victoria was found to be associated with acid, organic-rich sandy podzols. A trial designed to find a Cu supplement for P and NPK fertilisation on these soils showed significant growth in stem-length following Cu-solution treatment in the nursery, and Cu fertiliser applied in the field up to at least 13.5 kg Cu ha−1. The Steenbjerg effect was evident in foliar concentrations of nutrients following fertilisation; this makes diagnosis from foliar analysis difficult. Foliar Cu∶N ratios proved a more sensitive indicator of Cu fertiliser treatment than either Cu or N alone. Two phases of seasonal drainage and podzol development were identified in the experiment. Trees growing on the better-drained, more acid soil with a high content of organic matter responded better to Cu fertiliser.
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    URL: http://dx.doi.org/10.1007/BF02182813
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    Gains and losses in soil nutrients associated with harvesting and burning eucalypt rainforest (1983)
    Springer
    Plant and soil 74 (1983), S. 437-450 
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    ISSN: 1573-5036
    Keywords: Burning controlled ; Calcium ; Carbon ; CEC ; Eucalyptus ; Magnesium ; Nitrogen ; N. mineralisation ; Potassium ; Rainforest
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In mixed eucalypt/rainforest in southern Tasmania, samples of surface soil 0 to 2 cm, 2 to 5 cm, and 5 to 10 cm were taken from a clear-felled coupe before and after burning in 1982, from a similar coupe after burning in 1979, and from an uncut area adjacent to each coupe. Factors compared were bulk density; total organic C, N, P, Ca, Mg, and K; pH; exchangeable Ca, Mg, and K; cation exchange capacity; extractable P; and N-mineralisation rates. The effect of burning was found to be restricted mainly to the upper 2 cm of soil. The combustion of organic matter caused losses of 7360 kg organic C and 211 kg N/ha; 348 kg Ca and 282 kg Mg and 151 kg K/ha were added to the soil in ash. Burning caused significant increases in pH, exchangeable Ca, Mg, and K, and in extractable P; cation exchange capacity was reduced. In the 6 months after burning only K was leached from the upper 2 cm of soil. Equilibrium levels of NH4−N increased initially after the fire, but between 6 and 18 months, equilibrium levels and rate of production of NH4−N during anaerobic incubation in soil of burned coupes differed little from that in adjacent uncut forest. Rates of production of NO3−N during aerobic incubation were very low throughout the period of study. It is concluded that for soils developed on dolerite in mixed eucalypt/rainforest, a single regeneration burn probably improves the nutritional status of the soil. Nutrients lost from the area as particulate ash are in quantities that will probably be replaced in rainfall in 15 to 20 years.
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    URL: http://dx.doi.org/10.1007/BF02181361
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    Pertilization and nutrition experiments with conifer seedlings in pots (1980)
    Springer
    Plant and soil 55 (1980), S. 269-281 
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    ISSN: 1573-5036
    Keywords: Ammonium-vs nitrate-N ; Conifers ; Fertilization ; Deficiency ; Greece ; Nitrogen ; Nutrition ; Phosphate ; Pinus halepensis ; P. maritima ; P. radiata ; Potassium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In conifer fertilization and nutrition experimentsPinus halepensis, P. radiata andP. maritima seedlings were grown in pots, filled with soil derived from mica schist and siliceous tertiary deposits and also in peat substrate in paperpots. Fertilization with P ofP. radiata andP. maritima seedlings growing in soil low in available P and N improved seedling height only in combination with N fertilization and fertilization with alone induced P deficiency symptoms. N fertilization with from 100 to 150 ppm (2.4 to 3.2 g N/kg, respectively) in the soil regardless of the form of N (NH4 + or NO3 −) applied in the summer or autumn together with application of 20 ppm P before sowing was the fertilization regime which produced the best seedlings. Fertilization of peat before sowingP. halepensis, P. radiata andP. maritima with omission of one of the nutrients N, P and K resulted in visible symptoms of N, P and K deficiency, respectively, in the seedlings. Comparative chemical analysis of needles from the three kinds of conifer seedlings with deficiency symptoms and healthy ones verified the visual symptoms of N and P deficiency but not so convincingly the K deficiency symptoms.
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    URL: http://dx.doi.org/10.1007/BF02181807
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    Influence of soil type and potassium and magnesium fertilization on the release of potassium and magnesium by electro-ultrafiltration and ammonium acetate-lactate extraction (1982)
    Springer
    Plant and soil 64 (1982), S. 79-83 
    Details
    ISSN: 1573-5036
    Keywords: Ammonium acetate-lactate (AL) method ; Electro-ultrafiltration ; Magnesium ; Potassium ; Soil analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effect of increasing potassium and magnesium fertilization during 15 years on the amounts of K and Mg extracted by AL-solution and desorbed by Electro-Ultrafiltration (EUF) was determined in four Swedish soils. In all soils, with increasing potassium fertilization the amounts of K extracted by AL and desorbed by EUF increased, and the amounts of Mg-AL and Mg-EUF decreased. Magnesium fertilization had no significant effect on the K values but increased both Mg-AL and Mg-EUF. The EUF-values were lower than the corresponding AL-values, but the ratio of EUF-desorbed to AL-extracted amounts of K and Mg varied depending on soil type as well as on fertilization rate. The ratio of K-EUF to K-AL increased and the ratio of Mg-EUF to Mg-AL decreased with increasing potassium fertilization, whereas magnesium fertilization decreased the ratio of Mg-EUF to Mg-AL.
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    URL: http://dx.doi.org/10.1007/BF02375162
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    Effect of potassium and zinc applications on dry-matter production and nutrient uptake by potato variety ‘Kufri chandramukhi’ (Solanum tuberosum L.) in an alluvial soil of Uttar Pradesh (1982)
    Springer
    Plant and soil 65 (1982), S. 141-147 
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    ISSN: 1573-5036
    Keywords: Dry-matter production ; Potassium ; Potato ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field experiment was conducted during 1980–81 on the Indo-Gangetic alluvial soil of Pura, Kanpur to study the effects of added potassium and zinc on dry-matter production and uptake of these nutrients by potato crop. Increasing supply of potassium and zinc significantly increased the dry-matter production and concentration and uptake of respective nutrients in different crop components. The effects of combined application of potassium and zinc was positive in influencing the dry-matter production and K, Zn uptake by potato crop. Increasing supply of potassium showed beneficial effect on the absorption and translocation of zinc in plant system indicating thereby greater utilization of fertilizer zinc by the crop. Increasing supply of zinc, however, could not influence the concentration of potassium.
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    URL: http://dx.doi.org/10.1007/BF02376814
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    Use ofAzospirillum brasilense as biofertilizer in intensive wheat cropping (1982)
    Springer
    Plant and soil 66 (1982), S. 217-223 
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    ISSN: 1573-5036
    Keywords: Azospirillum brasilense ; Biofertilizer ; Spring-wheat ; Triticum aestivum ; Winter-wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three field experiments were conducted on ten cultivars of winterwheat and four cultivars of springwheat to estimate the growth promoting effect ofAzospirillum brasilense under varying nitrogen doses. Independent of cultivar selection or nitrogen dose a highly significant yield increase could be observed in winterwheat: strains S631 and SpBr14 increased the average grain yield with 9.14% and 14.82% respectively. When the yield components were studied a coinciding increase in ear density could be demonstrated of resp. 10.57% and 13.55%. Less significant results were obtained with springwheat although in one experiment strain SpBr14 significantly increased grain yield. As with winterwheat tillering of the plant was markedly affected by inoculation with both strains. In a companion greenhouse experiment it was found that inoculation with Azospirillum can cause a decrease in the root mass of wheatplants except when strain SpBr14 is used. Therefore it is suggested that the presence of a higher tillering together with an undisturbed nutrient uptake capacity can result in yield increases after inoculation withAzospirillum brasilense.
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    Effect of nitrogen management and soil moisture conservation practices on rainfed wheat (Triticum aestivum L.) (1982)
    Springer
    Plant and soil 66 (1982), S. 433-437 
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    ISSN: 1573-5036
    Keywords: Kaolin spray ; Mulch ; N-application ; Split application ; Triticum aestivum ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Studies revealed that the application of fertilizer nitrogen brought a significant increase in grain and straw yield of wheat. The significant effect was also noticed on such yield contributing characters like number of effective tillers per metre row length, spike length, and number of grains per spike. The increase of nitrogen level from 40 kg/ha to 80 kg/ha also brought a significant increase in yield and yield contributing characters. The application of entire dose of nitrogen at the time of sowing was as good as its split application. The application of nitrogen also influenced the nitrogen concentration of grains whereas, the other treatments did not influence the nitrogen concentration in grains or straw. The nitrogen treatments did not influence the moisture content of soil. The application of mulch or mulch+Kaolin resulted in significantly higher content of soil moisture in 0–15 cm soil depth as compared to control or Kaolin spray alone which was simultaneously reflected in yield and yield contributing characters.
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    Effect of soil moisture and clipping stresses on the nutrient (N, P and K) concentration, uptake and use efficiency in one temperate and two tropical grasses (1982)
    Springer
    Plant and soil 69 (1982), S. 413-421 
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    ISSN: 1573-5036
    Keywords: Clipping stress ; Dichanthium annulatum ; Echinocloa colonum ; Grasses ; Moisture content ; Nitrogen Phosphorus ; Polypogon monspeliensis ; Potassium ; Soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The concentration, uptake and element use efficiency of N, P and K in one C3 annual (Polypogon monspeliensis) and two C4 (Echinochloa colonum, an annual, andDichathium annulatum, a perennial) grasses were determined during winter and summer seasons in monocultures raised in field plots at three moisture levels,viz. full, half and one-fourth of field capacity. At each moisture regime the plants were clipped thrice at moderate and severe levels corresponding to 40 and 80% of live green. The concentration of these elements was characteristic of the growth habit of these plants;e.g. the build up of concentration was maximum in leaf of the annuals while it was comparable in crown and leaf of Dichanthium. The N level was maximum in Polypogon. The nutrient use effiency was comparable in the two annuals and maximum K and N use were obtained in Polypogon and Dichanthium, respectively.
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    The acquisition of phosphorus byLupinus albus L. (1983)
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    Plant and soil 70 (1983), S. 391-402 
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    ISSN: 1573-5036
    Keywords: Intercropping Lupins ; Lupinus albus ; Manganese ; Nitrogen ; Phosphorus ; Triticum aestivum ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Significant interactions between wheat and lupins occur below ground and wheat intercropped with lupins has access to a larger pool of available P, Mn and N than has wheat grown in monoculture. This suggests that the wheat is able to take up nutrients produced or made available by lupins grown in association with it.
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    Cation fluxes in excised and intact roots in relation to specific and varietal differences (1983)
    Springer
    Plant and soil 72 (1983), S. 197-212 
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    ISSN: 1573-5036
    Keywords: Allium ; Atriplex ; Cation selectivity ; Fagopyrum ; Halophytes ; Helianthus ; Hordeum ; Plasmalemma fluxes ; Potassium ; Potassium-sodium selectivity ; Salt tolerance ; Secale ; Sodium ; Suaeda ; Tonoplast fluxes ; Triticum ; Xylem parenchyma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In this short survey differences between species and varieties in the four major mechanisms that affect selective uptake of potassium and sodium to the plant within the root are considered. These include influx selectivity, K+/Na+ exchange at the plasmalemma, and selectivity at the tonoplast as well as at the symplasm-xylem boundary. The affinity of various plants for potassium influx in system 1 is rather uniform although varietal differences in barley have been observed. Differences are much more pronounced for sodium influx, for which Helianthus showed rather high and Fagopyrum rather low affinity. There is substantial variation between species in the efficiency of K+/Na+ exchange at the plasmalemma of cortical root cells; the three cereals Hordeum, Triticum, and Secale were highly efficient while K+/Na+ exchange in Atriplex, Helianthus and Allium was poor, even if the cytoplasmic sodium content was accounted for. Apparently there was no direct relation between salt tolerance and K+/Na+ exchange. The observed differences in the efficiency of K+-dependent sodium extrusion or K+/Na+ exchange were not due to the use of excised roots, they were observed also when roots of whole seedlings were investigated. At the tonoplast a 1∶1 exchange of vacuolar potassium for sodium has been observed in roots of Hordeum. By this exchange sodium ions are removed from the symplasm and potassium ions are recovered from vacuoles and thus made available for transport to the shoot. Indications for specific differences in this exchange have been observed; the exchange appears to be more efficient in Helianthus than in Hordeum roots. More comparative studies are needed here. At the boundary between symplasm and xylem vessels selectivity can be set up during xylem release of cations and there are reports that suggest a preference for sodium (Lycopersicum cheesemanii, Solanum pennellii, and Suaeda) and for varietal differences amongst tomatoes. Selectivity at this boundary, the plasmalemma of the xylem parenchyma cells was described in this paper by the selectivity ratio of transport that relates the rates of xylem transport to the cytoplasmic sodium and potassium concentrations. Based on this ratioAtriplex hortensis was shown to discriminate for sodium during xylem release while there was little selectivity in Hordeum and possibly some discrimination in favour of K+ in Allium roots. The data are shortly discussed in relation to salt tolerance and to the breeding of salt-tolerant crop varieties.
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    Increased uptake of anions by plants with vesicular-arbuscular mycorrhizas (1983)
    Springer
    Plant and soil 71 (1983), S. 463-467 
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    ISSN: 1573-5036
    Keywords: Anion uptake ; Barley ; Hordeum vulgare ; Mycorrhiza ; Phosphorus ; pH Rhizosphere ; Triticum aestivum ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In two field experiments sown in 1982 to test the effect of vesicular-arbuscular mycorrhizas (VAM) on growth and phosphorus nutrition of (i) spring wheat and spring barley, (ii) winter wheat and winter barley, we measured the concentrations of the major cation (K+, Ca2+, Mg2+ and Na+) and anions (Cl−, SO4 2−, H2PO4 − and NO3 −) in shoot tissue. In all cases the sum of the anion concentrations (ΣA) was increased strongly by mycorrhizal infection but not by P additions, confirming earlier observations2 on spring wheat. The concentration of total cations (ΣA) was generally reduced by P additions, hence P and VAM both reduced the cation excess (ΣC−ΣA) but by different mechanisms. These results suggest that increased uptake of anions by plants with VAM may be a general phenomenom which would have important implications for the elemental composition of crops. The effect may also be manifested by other types of mycorrhizal association.
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    Comportement dePicea abies Karst. en plantation au Québec, Canada (1983)
    Springer
    Plant and soil 73 (1983), S. 17-26 
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    ISSN: 1573-5036
    Keywords: Azote ; Croissance ; Nutrition ; Picea abies ; Plantation ; Potassium ; Sol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Abstract A nutrient-growth study was undertaken in 94Picea abies plantations, ranging in age from 20–31 years, in the L-3 forest region, Canada. Correlation analysis and canonical variable analysis indicated a positive relation between growth and the percentage of nitrogen and potassium in needles of the current year growth. By stepwise discriminant analysis, these two elements classify correctly 53% of the sites in the predetermined growth classes whereas combining all foliar characteristics tested classified correctly 59% of the sites. Adequate nitrogen and potassium nutrition is observed on plantations grown on soils with high levels of exchangeable cations and rich in silt and clay.
    Notes: Résumé Une étude nutrition-croissance a été réalisée dans 94 plantations dePicea abies, âgées de 20–31 ans, établies dans la région forestière L-3, Canada. Des relations positives ont été mises en évidence, par l'analyse de correlation et l'analyse des variables canoniques, entre la croissance et les teneurs en azote et en potassium des aiguilles de la pousse courante. Ces deux éléments permettent, par analyse discriminante progressive, de classer correctement en moyenne 53% des stations, au sein des classes de croissance prédéterminées alors que le total des caractéristiques foliaires analysées classe correctement 59% des stations. Une bonne nutrition en azote et en potassium est observée dans les plantations sur sols présentant une teneur élevée en cations échangeables et riches en limon fin et en argile.
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    Chemical properties of soil and water-stable aggregates after sixty-seven years of cropping to spring wheat (1983)
    Springer
    Plant and soil 75 (1983), S. 51-61 
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    ISSN: 1573-5036
    Keywords: Aggregate fractions ; Fatty acids ; Long-term rotation ; Triticum aestivum ; Water-stable aggregates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three non-replicated, unfertilized, dryland grain rotations—continuous wheat, wheat-fallow, and wheat-wheat-fallow—were established in 1912 on a Dark Brown Chernozemic (Typic Haploboroll) soil. The effect of long-term cropping on the chemical constituents of total water-stable aggregates was assessed. There was a loss in percentage of total water-stable aggregates and a shift in aggregate size distribution with time. Together with an increase in the 100 μm diameter fraction, there was an increase in the sand component of this fraction. These sand particles are probably held together by alkaline-soluble, acid-insoluble organic matter. Organic carbon, polysaccharides, polyuronides, phenols, and chloroform/methanol-extractable organic matter were all associated with the 〉250 μm diameter fractions. Although the aggregates had generally the same suite of aliphatic carboxylic acids, the relative proportions changed with cultivation.
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    A role for managanese in the resistance of wheat plants to take-all (1984)
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    Plant and soil 78 (1984), S. 441-444 
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    ISSN: 1573-5036
    Keywords: Gaeumannomyces graminis vartritici ; Hay-die ; Manganese deficiency ; Take-all ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The hypothesis that wheat plants deficient in managenese are predisposed to infection byGaeumannomyces graminis is outlined, and a test of the hypothesis in a soil system is reported. The results supported the hypothesis: wheat plants growing in managanese-deficient soil, although not showing foliar symptoms, were markedly more susceptible to infection; plant analysis confirmed the nutrient status of the plants. A review of the literature on take-all in wheat coupled with the results of our experiments suggests a reinterpretation of the etiology of this disease, since those edaphic factors which promote infection by this organism are those which also render managese unavailable to the host. Managenese nutrition is proposed as a common factor in many of the environmental conditions which influence the host-pathogen balance.
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    Relationships of bio-climatic zones and lithology with various characteristics of forest soils in Greece (1984)
    Springer
    Plant and soil 79 (1984), S. 101-121 
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    ISSN: 1573-5036
    Keywords: Base saturation ; Bio-climatic zones ; Calcium ; Clay accumulation ; Copper ; C:N ratio ; EDTA ; Forest soils ; Greece ; Iron ; Magnesium ; Manganese ; Nitrogen ; Phosphate ; Potassium ; Soil classification ; Zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Soils derived from a number of different parent materials (lithologies) and developed along a climatic gradient, manifested by the altitudinal succession of natural vegetation zones (Mediterranean, sub-Mediterranean, Mountainous and Pseudoalpine), were sampled throughout mainland Greece. In soils derived from siliceous parent materials low in clay, acidity increase and percent base saturation decreases from the Mediterranean to the Pseudoalpine vegetation zones. Clay illuviation is found mainly in soils developed in the Mediterranean and the sub-Mediterranean zones. No such changes are apparent in clayey soils rich in bases. Organic matter content of the mineral portion of the soil profile increases by a factor of 2 with a decrease in mean annual air temperature of about 10°C. The pattern of change in clay and soil organic matter content with climate is in relatively good agreement with soil development trends in the area, when soil profiles are named according to the FAO-Unesco soil map of the world. Concentrations of Ca and Mg decrease and those of total N, total and extractable P, K, Fe, Mn and Zn increase from the Mediterranean to the Mountainous zone. Within the same zone, however, concentrations of N, Ca, K, Fe, Mn and Zn decrease, but those of Mg, total and extractable P increase with soil depth. The concentrations of most macro- and micronutrients in the humic horizon are several times higher than those in the mineral portion of the soil profile due to biological enrichment.
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    Response of wheat tillers at different growing stages to gametocide treatment (1981)
    Springer
    Euphytica 30 (1981), S. 501-504 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; gametocide ; sterility ; fertility ; developmental stages
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of the gametocides Ethrel, RH-532, and RH-2956 on wheat tillers at various stages of development were studied. The gametocides were applied to Anza and Yecora 70, two spring wheat (Triticum aestivum L.) varieties, at three rates of foliar application when the main tillers were at meiosis. Ethrel was less effective in causing sterility than RH-532 and RH-2956. Anza showed greater induced sterility than Yecora 70 when treated with these gametocides. Ethrel affected only late tillers treated at or before meiosis. RH-532 and RH-2956 at the high application rate were equally effective for Anza. RH-2956 at the high application rate induced uniform and maximum sterility in early and late tillers of both Anza and Yecora 70.
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    Some comments on two recent papers in euphytica concerning stem rust resistance in wheat (1981)
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    Euphytica 30 (1981), S. 589-591 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Puccinia graminis tritici ; stem rust ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    URL: http://dx.doi.org/10.1007/BF00038784
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    The chromosomal location of the embryo plus scutellum alcohol dehydrogenase isozymes in the hexaploid wheat kernel (1981)
    Springer
    Euphytica 30 (1981), S. 729-734 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Triticum turgidum ; durum ; wheat ; alcohol dehydrogenase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Analysis of individual parts of Triticum aestivum L. and T. turgidum var. durum kernels showed two classes of alcohol dehydrogenase patterns: 1) A three banded pattern (ADH-1, ADH-2 and ADH-3) for endosperm (Ed) and 2) a seven banded pattern (ADH-F1, ADH-F2, ADH-1, ADH-2, ADH-3, ADH-S1 and ADH-S2) for embryo (E), scutellum (S) and embryo plus scutellum (E+S). The use of nullitetrasomic and ditelosomic series of Chinese Spring wheat allows alcohol dehydrogenase to be associated with arms 4Aα, 4BL and 4DS. A five subunit forming dimer hypothesis is postulated to explain the newly reported seven isozyme pattern. Subunits α, β and δ are coded by chromosome arms 4Aα, 4BL and 4DS respectively, and the newly postulated ɛ and γ are coded also by chromosome arm 4BL.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00038801
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    Gibberellic acid effects on germination and α-amylase activity of winter wheats (1981)
    Springer
    Euphytica 30 (1981), S. 875-880 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; pre-harvest sprouting ; germination ; α-amylase enzyme ; gibberellic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Sensitivity to GA in non-Gai genome winter wheat (Triticum aestivum L.) cultivars was investigated to determine magnitude of variation of the trait, its association with other traits, and effects of geographical location of production. α-Amylase enzyme activity was measured before and after treatment with gibberellic acid in 18 cultivars grown at one location and in five cultivars grown at six locations. Dye-labeled starch and agar-starch media procedures were used for the first and second experiments, respectively. α-Amylase activity differed significantly among the 18 cultivars after germination in water, germination in GA, and in absolute and relative sensitivity to GA. Cultivars that reacted similarly to GA had some common ancestors in their pedigrees, and α-amylase activity and sensitivity to GA were significantly negatively associated with seed weight. α-Amylase activity differed between tall and semi-dwarf cultivars in the second experiment, but not in the first experiment. The magnitude of variation in α-amylase activity and its relationship to preharvest sprouting susceptibility of the cultivars suggested that the trait can be modified to improve seed dormancy. Significant interactions between cultivar responses to GA and geographical location of grain production suggested that selection should be carried out in several environments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00038818
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    Investigation of possible associations between partial fertility restoration and agronomic traits in Triticum aestivum L. (1982)
    Springer
    Euphytica 31 (1982), S. 253-259 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; hybrid wheat ; cytoplasmic male sterility ; partial fertility restoration ; Triticum timophecvi ; Puccinia graminis ; stem rust
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Many conventional hard red spring wheat (Triticum aestivum L. em Thell) lines, including several North Dakota cultivars, carry a gene (or genes) which restore partial male fertility to male sterile plants with Triticum timopheevi Zhuk. cytoplasm. Since this gene has no fertility restoration function in T. aestivum cytoplasm, the postulation can be made that it is being retained in conventional lines because of pleiotropic effects, favorable linkages or chance. The research reported in this paper examined these possibilities. Forty F6 lines, derived from a single F2 plant which was heterozygous for a gene (or genes) for partial fertility restoration, were evaluated for two years in a yield trial planted at Fargo, North Dakota. The 40 lines were testcrossed to a male sterile line having T. timopheevi cytoplasm, and the mean seed set of testcrosses was used as a measure of a line's fertility restoration potential. Twenty-seven lines had the gene for partial fertility, and 13 lines apparently lacked this gene. The 40 lines differed for heading date, anther extrusion, plant height, grain yield, 200-kernel weight, test weight, and grain protein percentage. However, comparisons of lines having the restorer gene with those lacking the gene did not provide any obvious explanation for the retention of the partial fertility restorer gene in the breeding stocks of the North Dakota conventional hard red spring wheat breeding program. The possibility that the restorer gene was linked with genes for resistance to stem rust or leaf rust also was evaluated by testing lines for their reaction to several races of rust. No conclusive association was found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028328
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    Use of the SDS-sedimentation test and SDS-polyacrylamidegel electrophoresis for screening breeder's samples of wheat for bread-making quality (1982)
    Springer
    Euphytica 31 (1982), S. 677-690 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; glutenin ; SDS-sedimentation test ; SDS-polyacrylamidegel-electrophoresis ; baking quality selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Gelprotein or SDS-insoluble gel-forming glutenin was isolated from wheat flour by extraction with an aqueous 1.5% SDS solution. Remarkable intervarietal differences were observed both in amount and subunit composition of these proteins. The amount of gelprotein and the SDS-sedimentation volume both proved to be good parameters for the bread-making quality of wheat cultivars. A high correlation was observed between amount of gelprotein and SDS-sedimentation volume. The amount of gelprotein was therefore tentatively assumed to be the essential basis of the SDS-sedimentation test. The subunit composition of the gelprotein was studied by SDS-PAGE after reduction of SS bonds by mercaptoethanol. It was found that the average bread-making quality of wheat cultivars and progeny of the cross Atlas 66 x Atys which possessed subunits 3 and 10, coded for by chromosome 1D, was significantly higher than that of wheat samples possessing subunit 2 and 11, their allelic counterparts.
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    URL: http://dx.doi.org/10.1007/BF00039206
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    Crossability and embryo development in wheat-rye hybrids (1983)
    Springer
    Euphytica 32 (1983), S. 593-600 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Triticum durum ; durum wheat ; Secale cereale ; inbred lines ; intergeneric crossability ; embryo development
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Crossability and embryo development were studied in the crosses of one Triticum aestivum and three T. durum genotypes with nineteen rye inbred lines. Parental wheat and rye genotypes exerted a significant influence on the characters seed set, number of seeds containing embryos and viable plantlets obtained from embryo culture. It was established that the common winter wheat cultivar Götz is of intermediate crossability. The rye inbred lines varied substantially in their capacity to fertilize several wheat genotypes. Interactions between wheats of different crossability classes and their seed set with rye lines were detected. Significant correlations were obtained between seed set and viable plantlets recovered in vitro.
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    URL: http://dx.doi.org/10.1007/BF00021472
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    Reselection of hard red winter wheat cultivar Lancota for high grain protein content (1983)
    Springer
    Euphytica 32 (1983), S. 607-615 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; protein content ; grain yield ; mixing time ; soil-borne mosaic virus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The wheat (Triticum aestivum L.) cultivar Lancota has genetic potential to produce grain with higher protein content than most other cultivars grown in the hard winter wheat region. It has not consistently expressed full potential for grain protein content outside its area of development. Experiments were conducted to determine genetic variability for grain protein content in Lancota and to utilize that variability to select genotypes with high grain protein content. Approximately 1600 lines were screened to 37 high-protein selections that varied in yield, test weight, flour mixing time, blooming date, height, and reaction to wheat soil-borne mosaic virus (WSBM). Nine promising selections (KS80476, KS80478, KS80480, KS80488, KS80490, KS80491, KS80497, KS80499, and KS80500) had grain protein advantage over Lancota of 0.5 to 1.0% and equalled or exceeded Lancota in yield or test weight. Those selections were resistant to WSBM and satisfactory or better in mixing properties than Lancota. The highest protein selection (KS80496) had a mean protein advantage of 1.5% over Lancota but exhibited a short mixing time of 1 7/8 min. The absence of correlation between some years indicated strong environmental influence on protein content. We concluded that adequate genetic variability existed in the high-grain protein cultivar Lancota to select lines that express the high protein potential better than the original cultivar outside its area of development.
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    URL: http://dx.doi.org/10.1007/BF00021474
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    Investigation of linkage drag in near isogenic lines of wheat by testing for seedling reaction to races of stem rust, leaf rust and yellow rust (1983)
    Springer
    Euphytica 32 (1983), S. 319-327 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; linkage drag ; seedling resistance ; Puccinia graminis tritici ; stem rust ; Puccinia recondita ; leaf rust ; Puccinia striiformis ; yellow rust ; stripe rust
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary To determine whether linkage drag had occurred during the breeding of near isogenic lines (NILs) of wheat, 176 lines involving 11 sets of NILs, their recurrent parents and some of their donors were tested for seedling reaction to stem rust (4 races), leaf rust (3 races) and yellow rust (3 races). From the results, six cases were identified in which linkage drag may have played a role. More research is needed to prove clearly that linkage is involved. Nevertheless, the results suggest that linkage drag is a fairly common phenomenon.
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    URL: http://dx.doi.org/10.1007/BF00021440
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    The positive effects of the high molecular weight subunits 3+10 and 2* of glutenin on the bread-making quality of wheat cultivars (1983)
    Springer
    Euphytica 32 (1983), S. 735-742 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat, glutenin ; high-molecular-weight subunits ; SDS-PAGE ; SDS-sedimentation test ; baking quality selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The high-molecular-weight subunit composition of glutenin is regulated by genes on the long arm of the homoeologous group 1 chromosomes. Evidence is presented that in general the bread-making quality of wheat cultivars containing the subunits 3+10 coded for by chromosome 1D or the subunit 2* coded for by chromosome 1A is higher than that of cultivars containing their allelic counterparts the subunits 2+11 or subunit 1 and the null form respectively. Besides it is shown that the positive effects of the subunits 3+10 and subunit 2* are additive.
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    URL: http://dx.doi.org/10.1007/BF00042153
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    A rapid method for the evaluation of variation in germplasm collections of cereals using polyacrylamide gel electrophoresis (1983)
    Springer
    Euphytica 32 (1983), S. 877-883 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Triticum turgidum ; Hordeum vulgare ; barley ; chemotypes ; electrophoresis ; variation ; prolamines ; gliadins ; hordeins ; electrophoregram ; genetic resources
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Polyacrylamide gel electrophoresis (PAGE) of storage proteins (prolamines) was used to screen 64 landraces of wheat and barley from Nepal and the YemenArab Republic and two cultivars for comparison. Altogether 3168 single seeds were examined and the advantages gained by using the vertical slab gel method were recognised. The extent of variation present within populations of landraces could be assessed easily and rapidly using the methods described. Differences in ploidy levels of wheats were detected by PAGE and investigated. Suggestions are made for improvements in sampling strategies in hilly terrain.
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    URL: http://dx.doi.org/10.1007/BF00042169
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    Temperature as a component of the expression of developmental responses in wheat (1984)
    Springer
    Euphytica 33 (1984), S. 91-98 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; near-isogenic lines ; chromosome substitution lines ; vernalization ; photoperiod, ear emergence ; basic development rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Studies were made of days to ear emergence under the constant temperatures of 9, 14, 19 and 25°C and 16 h photoperiod in three sets of wheat lines each possessing genotypes differing for developmental responses. Days to ear emergence in three near-isogenic lines of the wheat cultivar Triple Dirk, which differed for vernalization response, increased as the strength of the response increased. At the four temperatures Triple Dirk D (Vrn 1 vrn 2) was not significantly different from normal Triple Dirk (Vrn 1 Vrn 2) but Triple Dirk B (vrn 1 Vrn 2) was significantly (P=0.01) later than normal Triple Dirk at each temperature. This indicates that the vrn 1 allele confers stronger vernalization response than vrn 2 over the range of temperatures (9–24°C). However, Triple Dirk C (vrn 1 vrn 2) failed to head after 120 days at each temperature indicating strong interaction between vrn 1 and vrn 2 with each other (and possibly the Triple Dirk back-ground) to give a much stronger vernalization response than predictions from additivity of their individual effects. The second set comprised the four Chinese Spring/Thatcher chromosome substitution lines CS/T 3B, 6B, 7B and 5D, plus Chinese Spring and Thatcher, and were grown in the unvernalized condition. CS/T 5D was similar in days to ear emergence as Chinese Spring at all four temperatures but the other three lines were earlier to ear emergence, particularly as the temperature increased. Days to ear emergence was fastest at 14°C in all lines, except CS/T 3B, in which it decreased progressively from 9 to 24°C. The third set of Chinese Spring and Thatcher and the homoeologous group 2 chromosomes of Thatcher substituted in Chinese Spring, the group which is considered to be involved in the control of photoperiod sensitivity. The three substitution lines responded differently to temperature compared with Chinese Spring and with each other, with chromosome 2D being the least, and chromosome 2B the most, responsive to temperature.
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    URL: http://dx.doi.org/10.1007/BF00022754
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    Transgressive segregation for resistance to yellow rust in wheat (1984)
    Springer
    Euphytica 33 (1984), S. 123-132 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; durable resistance ; Puccinia striiformis ; yellow rust of wheat ; race-specific resistance ; race-non-specific resistance ; trangressive segregation ; stripe rust
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Crosses were made between wheat varieties Joss Cambier, Nord Desprez and Maris Bilbo, all classified as susceptible to yellow rust in field tests, and between Cappelle Desprez and Maris Huntsman, both classified as moderately and durably resistant. Selection for resistance to yellow rust among the progeny was carried out using races of Puccinia striiformis able to overcome all the known race-specific components of resistance in both parents of each cross. Lines with greater resistance than in both parents were obtained from each cross, those with greatest resistance being obtained from the cross between the moderately resistant parents. Three lines selected for resistance from the cross of Joss Cambier with Nord Desprez and one from the cross of Cappelle Desprez with Maris Huntsman, together with the parents, were tested in the field with 12 races of P. striiformis. Nord Desprez possessed a previously undetected race-specific component. The selected lines also displayed race-specific resistance, some of which was clearly related to race-specificity of the parents, and a component of resistance, greater than in both parents, that was effective against all 12 races. The possible origin and potential durability of this transgressive level of resistance is discussed. It is suggested that such transgressive resistance is more likely to be durable if it is derived from parents that have shown durable resistance.
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    URL: http://dx.doi.org/10.1007/BF00022758
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    Selection for white kernel color in the progeny of red/white wheat crosses (1984)
    Springer
    Euphytica 33 (1984), S. 227-232 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; selection ; inbreeding ; maternal inheritance ; kernel color
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Data are presented which support early generation selection for white kernel color in the progeny of red/white kernel wheat crosses which are segregating at 12 or more loci for yield (or any other trait of interest). The optimum generation for selecting white kernels is determined by the frequency of seeds produced with the potential to produce plants having desired quantitative alleles from both parents, and by the frequency of white kernels produced. The F2-produced seed (F3 embryo) is shown to be the optimum generation for selecting white kernels, given that 12 or more loci are segregating for a quantitative character such as yield. When the red parent is a 2 or 3 loci red genotype, selection among F4-produced seed for white kernel color may be desirable when 5 or fewer genes are segregating for the second trait. The results have direct application for all highly heritable, recessive, sporophytic traits.
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    URL: http://dx.doi.org/10.1007/BF00022770
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    Parental effects on crossability, embryo differentiation and plantlet recovery in wheat x rye hybrids (1984)
    Springer
    Euphytica 33 (1984), S. 233-239 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; read wheat ; Triticum durum ; durum wheat ; Secale cereale ; rye ; inbred lines ; intergeneric crossability ; embryo differentiation ; plantlet recovery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary One hexaploid wheat cultivar (Triticum aestivem) and two tetraploid wheat lines (T. durum) were crossed with seventeen inbred lines of rye (Secale cereale). Seed set, degree of hybrid embryo differentiation at the time of excision for in vitro culture and recovery of amphihaploid plantlets from various embryo categories were studied. Degree of embryo differentiation was predominantly determined by maternal wheats, paternal rye genotypes appearing to be of minor importance. T. aestivum x rye hybrid embryos were superior to those produced from T. durum for degree of differentiation. The proportion of plantlets developing from differentiated embryos was high for all wheat parents, whereas undifferentiated embryos were mostly unsuitable for plantlet production. The results revealed that cross-incompatibility in hexaploid wheat x rye crosses was due to failure of fertilization, while in tetraploid wheat x rye crosses it was caused by lack of embryo differentiation. Correlation analyses showed that seed set provided a criterion to predict the amphihaploid plantlets to be expected from a particular wheat x rye combination.
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    URL: http://dx.doi.org/10.1007/BF00022771
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    Transfer of high kernel weight and high protein from wild tetraploid wheat (Triticum turgidum dicoccoides) to bread wheat (T. aestivum) using homologous and homoeologous recombination (1984)
    Springer
    Euphytica 33 (1984), S. 249-255 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Triticum turgidum dicoccoides ; wild emmer ; homologous recombination ; homoeologous recombination ; Ph-mutants ; high protein ; kernel weight
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Wheat pentaploids were produced by hybridizing a high kernel weight (1000 grain wt=56 g), high protein (25.4%) line of wild tetraploid wheat (Triticum turgidum dicoccoides) as male parent, with the three hexaploids (T. aestivum) — normal Chinese Spring and its two homoeologous pairing mutants, ph 1b and ph 2. The pentaploids were crossed as female parents to the two commercial hexaploid cultivars Warigal and Barkaee and 42-chromosome stable plants selected from the F1 of the pentaploid x hexaploid crosses. Mean protein content of certain F3 lines from all six pentaploid x hexaploid crosses was significantly higher than Chinese Spring and the respective commercial hexaploid parent (p〈0.005) indicating high protein had been transferred from the tetraploid to the hexaploid level. Kernel weight amongst certain F3 lines of the three pentaploids x Barkaee was significantly (p〈0.0005) higher than either Chinese Spring or Barkaee, indicating the transfer also of high kernel weight from the tetraploid to the hexaploid level. However kernel weight was not significantly increased over Warigal in any F3 lines of its crosses with the three pentaploids. High levels of homoeologous chromosome pairing in the ph-mutant pentaploids, plus evidence for significant modification of the composition of high-molecular weight (HMW) glutenin subunits of grain protein in certain F3 derivatives of the ph-mutant pentaploid x hexaploid, crosses indicates that the ph-mutant-derived lines may possess novel (intergenome) genetic recombination, at least for high protein, and possibly kernel weight.
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    URL: http://dx.doi.org/10.1007/BF00022773
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    Stability analysis over seasons and locations of multilines of wheat (Triticum aestivum L.) (1984)
    Springer
    Euphytica 33 (1984), S. 489-495 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; multilines ; recurrent parents ; stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three multilines each of Kalyansona and PV 18 varieties of wheat were compared for their stability of yield and agronomic characters and disease resistance against the respective recurrent parents. The experiments were conducted for four years at nine locations. The multilines had more tillers and bolder seeds than the recurrent parents. There were, however, no differences for plant height, ear length and number of spikelets per spike. The genotypes x years x locations interaction was much more important than genotypes x years or genotypes x locations interaction as well as the main effects for genotypes. It is suggested that the number of test locations should be increased while decreasing the number of years. The stability parameters indicated that the multilines had a higher mean yield in the case of Kalyansona multilines whereas the yield of multilines of PV 18 was not significantly inferior to that of the recurrent parent. The regression coefficients were very close to unity except for KSML 3 (b=1.132). The deviations from regression were much larger for the multilines than for the recurrent parents. For rust resistance the multilines were superior over the varieties Kalyansona and PV 18.
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    URL: http://dx.doi.org/10.1007/BF00021149
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    Development of hard white winter wheats for a hard red winter wheat region (1984)
    Springer
    Euphytica 33 (1984), S. 865-874 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; breeding ; grain yield ; grain quality ; preharvest sprouting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Hard white winter wheat (HWWW) occupies a very limited area of the USA, but its purported advantages suggest that its production in the major hard red winter wheat (HRWW) region may be feasible. Objectives of our investigations were to develop experimental HWWW lines that combined desirable attributes-grain yield, functional grain quality, and resistance to preharvest sprouting-in single genotypes for comparison with popular cultivars in the major US RHWW region. Forty-four lines from seven parental combinations were tested in randomized complete block designs at three Kansas locations during the 1981–82 and 1982–83 seasons. Agronomic traits, grain yield, grain quality, and preharvest sprouting were measured. Plant characteristics and grain yield were similar in the HWWW experimental lines and the HRWW check cultivar, Newton. Mean grain SDS-sedimentation value and grain protein content of most experimental lines equaled or exceeded that of the check. Dough mixing times frequently were shorter for the experimental lines than for the check cultivar, whereas loaf volumes were greater. Falling number usually was similar in all geneotypes, but α-amylase was higher in field-harvested grain of white lines than the check; both measures were more favorable than grain trade standards. We concluded that production of high yielding, high quality hard white winter wheat genotypes is feasible in the US ‘breakbasket’.
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    URL: http://dx.doi.org/10.1007/BF00021914
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    Yield response of various wheat genotypes to inoculation withAzospirillum brasilense (1984)
    Springer
    Plant and soil 80 (1984), S. 261-266 
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    ISSN: 1573-5036
    Keywords: Azospirillum brasillense ; Wheat yield ; Triticum aestivum ; Responding genotypes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Twenty different wheat genotypes representing a wide genetic variability, were tested for their yield and yield components response to inoculation withAzospirillum brasilense, at two levels of N fertilization. Only two cultivars responded by a significant yield increase of 7.4 and 8.0 per cent — both at the higher N level. The response reflected an increase in the number of grains per plant added as additional spikes. The importance of the host plant genotype for a successful wheat-bacteria association is discussed.
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    URL: http://dx.doi.org/10.1007/BF02161182
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    The effects of managanese and nitrate supply on the levels of phenolics and lignin in young wheat plants (1984)
    Springer
    Plant and soil 81 (1984), S. 437-440 
    Details
    ISSN: 1573-5036
    Keywords: Lignin ; Manganese ; NO 3 − Phenols ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Managanese deficiency (〈 18 μg g−1 Mn) resulted in decreased levels of phenols in wheat shoots and decreased levels of lignins in both roots and shoots. These observed reductions in phenol contents was due largely to a decrease in the alkaline labile phenol component. Levels of nitrate supplied in solution influenced both phenol and lignin production; high nitrate levels (15 mM) resulted in a reduction in phenol and lignin in the shoot but stimulated lignin production in root tissue.
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    Influence of root zone oxygen stress on potassium and ammonium absorption by Myrobalan plum rootstock (1984)
    Springer
    Plant and soil 80 (1984), S. 345-353 
    Details
    ISSN: 1573-5036
    Keywords: Ammonium ; Anaerobiosis ; Ion absorption ; Ion efflux ; Myrobalan plum rootstock ; Oxygen stress ; Potassium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Growth chamber experiments were conducted with ‘French’ prune (Prunus domestica L.) scions grafted on Myrobalan 29C (P. cerasifera Ehrh.) rootstocks grown in nutrient solution to characterize K and NH4 uptake before, during, and after anaerobiosis. Conditions of oxygen stress were imposed by removing the source of aeration and bubbling solutions with nitrogen gas. At solution oxygen concentrations less than 1%, K leaked from plant roots. After 18 h of anaerobic conditions, aeration was restored and K depletion from solution occurred within 2 h. Uptake of K the following day was similar to that before oxygen stress was imposed. Under similar conditions with solution oxygen concentrations less than 1%, both K and NH4 uptake were inhibited. Potassium leakage from roots was significantly greater than that of NH4. The presence of NH4 had no significant effect on K leakage from roots. Signs of wilting during oxygen stress appeared first on those trees that received NH4. Potassium uptake by rootstocks in the presence of NH4 was inhibited prior to and following anaerobiosis. However, the extent of NH4-induced inhibition of K uptake before anaerobiosis was similar to the K uptake inhibition after anaerobiosis.
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    URL: http://dx.doi.org/10.1007/BF02140041
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    Effect of nitrogen form at various levels of potassium, on the Meloidogyne-Fusarium wilt complex in muskmelon (1984)
    Springer
    Plant and soil 81 (1984), S. 85-92 
    Details
    ISSN: 1573-5036
    Keywords: Meloidogyne-Fusarium complex ; Nitrogen-form ; Potassium ; Cucumis melo ; Fusarium oxysporum f. sp.melonis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The influence of various potassium concentration and of nitrate or ammonium was evaluated on non inoculated muskmelon plants and on plants inoculated with theFusarium wilt pathogen (F), the root-knot nematode (Meloidogyne javanica) (Nem), or a combination of both pathogens (F+Nem). Increasing potassium concentrations raised top fresh weights (TFW) in all four groups. Nitrate fertilized plants weighed more than plants receiving ammonium, independent of the K+ level in the medium. In the Nem+F infected plants TFW values were one and half to two times greater in those receiving the nitrate than in those receiving the ammonium. Number of nematodes in the roots were not affected by nutritional difference. In the ammonium fertilized F and Nem+F plants 30% more wilting was found than after nitrate application. Irrespective of the form of nitrogen that was applied accumulation of N, P and K was found in the roots of the Nem+F and/or Nem plants, while in the shoots Ca, Mg, Na and P accumulated and K was depleted.
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    URL: http://dx.doi.org/10.1007/BF02206897
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    Seasonal changes in foliar macronutrients (N, P, K, Ca and Mg) inEucalyptus saligna Sm. andE. wandoo Blakely growing in rehabilitated bauxite mine soils of the Darling Range, Western Australia (1984)
    Springer
    Plant and soil 81 (1984), S. 377-388 
    Details
    ISSN: 1573-5036
    Keywords: Calcium ; Eucalyptus saligna ; Eucalyptus wandoo ; Foliar nutrients ; Magnesium ; Nitrogen ; Phosphorus ; Potassium ; Rehabilitation ; Seasonal trends
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Seasonal changes in the foliar concentration of macronutrients (N, P, K, Ca and Mg) in sapling trees ofEucalyptus saligna Sm. andE. wandoo Blakely growing in rehabilitated bauxite mined areas in the Darling Range of Western Australia are described. Foliar N concentration decreased with age of the fully expanded leaf tissue. Leaf N concentrations were also high when rates of litter decomposition were expected to be high during the period of early spring. The greatest foliar N difference between trees growing in good soil conditions and those from poorer soil conditions also occurred during this period. Levels of P in leaves were highest in young developing leaves but once the leaves reached full size, no seasonal trend in P concentration was observed. Foliar K was lower during the winter and probably related to the period of maximum leaching by precipitation. High foliar K during summer, however, could be related to the role of K in lowering cellular water potential. Leaf Ca was highest during early sping. Low mobility of cellular Ca during the cool portion of the year was indicated. Foliar Mg showed a weak pattern of decreasing concentration with leaf age. The best season for sampling for these broadleafed evergreen species to provide information on plant nutrient status appears to be in spring.
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    URL: http://dx.doi.org/10.1007/BF02323052
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    Yield increases in spring wheat (Triticum aestivum L.) inoculated withAzospirillum lipoferum under greenhouse and field conditions of a temperate region (1984)
    Springer
    Plant and soil 82 (1984), S. 87-99 
    Details
    ISSN: 1573-5036
    Keywords: Azospirillum lipoferum ; Grain yield ; N-content ; Nitrogen fixation ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Spring wheat (Triticum aestivum var. Arkas) was associated withAzospirillum lipoferum under greenhouse and field conditions of a temperate region. Controls were treated with autoclaved bacteria. The soils used were: sand, sandy loam, and a peat-clay mixture. In experiments run over a period of three years, there were increases in grain yield, N-yield of the grains, and 1000 grain weight. Depending from environmental conditions, increase changed from year to year, and within one given year. There was, however, no experiment without positive response to the inoculation. Highest grain yield increase (70%) was found on sand supplemented with P and K only, but up to 32% were also obtained on peat-clay soil containing 0.28% total N. Under greenhouse conditions, one third of technical N-fertilizer could be saved by bacterial activities. With high probability the effects observed have been at least partly due to bacterial N2-fixation, because the N-yield of the grains was increased (up to 33%), and the most pronounced response was found on sand without any N-fertilizer added.
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    URL: http://dx.doi.org/10.1007/BF02220773
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    An evaluation of seed and seedling drought tolerance screening tests in wheat (1980)
    Springer
    Euphytica 29 (1980), S. 727-736 
    Details
    ISSN: 1573-5060
    Keywords: Wheat ; Triticum aestivum ; bread wheat ; Triticum durum ; durum wheat ; drought tolerance ; germination ; seedling growth ; water stress selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A series of experiments was performed in order to evaluate the significance of seed germination and seedling growth in osmotic media as screening methods for drought tolerance. Ten spring wheat (Triticum aestivum L. em Thell.) and one durum wheat (Triticum durum Desf.) were tested under controlled environments, using polyethylene glycol-6000 (PEG) solutions as the moisture stress inducing media. Tolerance in the rate of endosperm utilization, under stress, prior to the onset of germination varied among cultivars. Germination rate or injury to germination at various concentrations of PEG differed significantly among cultivars. Cultivar rating with respect to injury to germination changed with stress levels. Injury to germination did not correlate with endosperm utilization rate in PEG or in water. Germinating seedlings were tolerant to extreme desiccation up to the stage of emergence of the first leaf from the coleoptile. Growth of photosynthesizing seedlings was monitored as they were carried through an increasing concentration gradient of PEG solutions, ranging from −5.9 to −11.3 bars of water potential. Cultivars significantly differed in seedling growth tolerance to increasing levels of water stress. Seedling growth tolerance across cultivars was not correlated with their germination responses under srress. It is concluded that tolerance to water stress in growing seedlings can be screened for by using PEG-containing nutrient solutions. It can not be predicted from germination tests in osmotica. Work was done under a US-Israel Binational Science Foundation (BSF) Grant no. 1654/78.
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    URL: http://dx.doi.org/10.1007/BF00023219
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    Identification and cataloguing of genetic information for resistance to wheat leaf rust (1980)
    Springer
    Euphytica 29 (1980), S. 769-775 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Puccinia recondita ; leaf rust ; host-pathogen specificity ; disease resistance ; leaf rust genes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Specific host-pathogen relationship is used to derive genetic information for resistance in commercial cultivars. Twenty-two cultivars were classified into 12 groups based on their reactions to 13 leaf rust (Puccinia recondita) races of India. The cultivars in each group were matched with the Lr gene carrying lines to see which genes they might possess. Confirmation of this information was sought through pedigree analyses. (1) Agra local and NP4 do not seem to have any resistance genes. (2) C306 has gene Lr14a, and NP824 one of the genes Lr12, Lr13, Lr14a or Lr22. (3) kalyansona carries Lr13 and another additional gene not in study. (4) Chhoti Lerma, NP852, Pusa Lerma, Sharbati Sonora, Shera, UP301 form one group and carry Lr1. (5) Sonalika seems to have Lr2a, Lr11 and additional genes. (6) Hy.65 has Lr10. (7) HS1076-2 and HW135 have the genes Lr2a and Lr3do. (8) HW124 carries the genes Lr1 and Lr3do. (9) Safed Lerma has Lr1 and Lr17. (10) NP846 has the genes Lr1 and Lr15. (11) HB117-107, Janak, UP215 form one group and possess the genes Lr3do and Lr15. (12) Girija possesses the genes Lr10 and Lr15. Based on such grouping of commercial cultivars for resistance genes a ‘Catalogue’ system is advocated for the design of wheat breeding programmes like the development of multiline and multigene cultivars.
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    URL: http://dx.doi.org/10.1007/BF00023224
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    Is the pedigree of the near-isogenic line Michigan Amber/8*Chancellor of bread wheat correct? (1981)
    Springer
    Euphytica 30 (1981), S. 41-43 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; linkage ; near-isogenic line
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary It is shown that the near-isogenic line Michigan Amber/8*Chancellor cannot derive from Michigan Amber. Marquillo is suggested as the donor cultivar.
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    URL: http://dx.doi.org/10.1007/BF00033657
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    Genetical studies on the difference of anther length among common wheat cultivars (1981)
    Springer
    Euphytica 30 (1981), S. 45-53 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; anther length ; heritability of anther length ; pistil length ; anther length-flowering date relationship
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Anther and pistil lengths of 61 cultivars and experimental strains of common wheat were measured just before flowering. Anther length varied from 3.0 to 5.1 mm, and pistil length varied from 3.8 to 5.2 mm. A specific correlation was observed between anther length and flowering date among the parental strains, as well as in the F1 generations of 13 cross combinations; Anther length on flowering date fitted well to a curvelinear regression of the second order in parental and F1 generations. The reduction of anther length in both early and late flowering cultivars was attributed to the worse environmental conditions for their floral development, compared to the intermediate types. Such relationship between anther length and flowering date was not found in the F2 generation. This indicates that most of the genes controlling the two characters are different. Heritability of anther length estimated from the regression coefficient of the F1s on the midparents was greater than 0.65.
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    URL: http://dx.doi.org/10.1007/BF00033658
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    A least-squares method for choosing the best relative proportions when intercrossing cultivars (1981)
    Springer
    Euphytica 30 (1981), S. 153-160 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; spring wheat ; parent selection ; cross prediction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary It is supposed that k variables have been measured on each of m potential parents, and that the aim is to produce a base population for which the mean values are as close as possible to an ideal genotype. A least-squares estimation procedure for the parent proportions is presented and the determination of the closest practical solution is considered. It is shown that an enumeration procedure for finding the best practical solution, which is applicable in most situations, is simpler and more flexible than the least-squares method. A proposed symbolic presentation of the results of an analysis highlights the strengths and deficiencies of a set of parents and indicates which parents may complement one another.
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    URL: http://dx.doi.org/10.1007/BF00033672
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    Evidence for a ‘uniculm effect’ in spring wheat (Triticum aestivum L.) in a mediterranean environment (1981)
    Springer
    Euphytica 30 (1981), S. 277-282 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; spring wheat ; uniculm effect ; ideotype
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The concept of the uniculm habit as an important feature of a wheat ideotype for a mediterranean environment was evaluated under field conditions. A uniculm plant produces a single shoot and when sown in a stand exemplifies a non-tillering crop with a fixed density of shoots throughout the growing season. Yield and harvest index of normal tillering spring wheat was compared with that of the same crop surgically detillered throughout the growing season to a constant density of 2 shoots per plant. The use of a biculm, whilst retaining the uniculm principle of a fixed density of shoots throughout the growing season, permitted comparison on a single crop sowing at normal field density. The control plots followed the usual pattern of tillering for the region attaining a maximum of about 4.0 shoots per plant by early spring. Shoot number declined to 2.3 and 2.6 per plant by maturity in 1978 and 1979, respectively. Detillered plots outyielded the controls by 14 per cent in 1978 (2.05 v. 1.80 tonnes ha-1) and 22 per cent in 1979 (1.84 v. 1.51 tonnes ha-1). Harvest indices were 0.39 v. 0.35 in 1978 and 0.30 v. 0.24 in 1979 for detillered and control plots, respectively. Higher leaf area indices and better water relations after anthesis in biculm stands indicated more efficient water use when shoot population was controlled at near optimum level. Irrigation at anthesis reduced the difference in yield between detillered and control plots. Although the uniculm principle was demonstrated with biculms in practice control of shoot number will require the use of genetic uniculms.
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    URL: http://dx.doi.org/10.1007/BF00033988
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    A classification of the NORIN 10 and Tom Thumb dwarfing genes in British, Mexican, Indian and other hexaploid bread wheat varieties (1981)
    Springer
    Euphytica 30 (1981), S. 355-361 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; gibberellin insensitivity ; cultivar classification according to Rht genotype
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The two semi-dwarfing genes Rht1 and Rht2 from Norin 10 have now been incorporated in successful varieties in use in most major wheat growing areas. The more potent dwarfing gene, Rht3, from Tom Thumb has been used in a limited way. These genes may be identified and classified by assessing the associated character of GA-insensitivity in the progeny from test crosses. This paper describes these classifications in the CIMMYT, Mexican, PBI, Cambridge and Indian breeding programmes and for a number of other international varieties.
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    URL: http://dx.doi.org/10.1007/BF00033997
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    Endosperm peroxidase electrophoresis patterns to distinguish tetraploid from hexaploid wheats (1981)
    Springer
    Euphytica 30 (1981), S. 389-392 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat ; Triticum turgidum ; durum wheat ; endosperm peroxidases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A simple method is proposed to distinguish hexaploid (Triticum aestivum L.) from tetraploid (Triticum turgidum L., durum wheat) cultivated wheats on the basis of peroxidase isozymes coded by genome D. It can also be used as a first step to detect possible contamination by tetraploid genotype mixtures. The peroxidase patterns of endosperm and of embryo plus scutellum found among 349 entries of a durum wheat world basis collection are shown.
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    URL: http://dx.doi.org/10.1007/BF00034001
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    The relation between wheat lines derived from the F2, F3, F4 and F5 generations for grain yield and harvest index (1981)
    Springer
    Euphytica 30 (1981), S. 419-430 
    Details
    ISSN: 1573-5060
    Keywords: Wheat ; Triticum aestivum ; wheat breeding ; selection ; grain yield ; harvest index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The relationships between the F2, F3, F4 and F5 generations for grain yield were determined using random, pedigreed lines derived from each generation. The lines from two crosses were grown in plots at two sites over two years. In the first year, only F2 and F3 derived lines were available, but in the second year the F2 to F5 were grown. Correlations between lines in one generation and the mean of lines derived from them in a following generation increased as the generations were advanced. Correlations between consecutive generations were higher than those between generations two or three apart. Correlations between F2 and F5 derived lines, which indicate the effectiveness of selecting F2 lines, varied from 0.10 ns to o.49** when lines from both generations were grown in the same environment. Correlations between years of lines from the same or different generations were low and often non-significant. Harvest index was measured on the F2 and F3 derived lines at the one site in the first year. Selection for improvement of grain yield using harvest index was no more effective than selection for yield directly, when considered across years. It is conclued that, while gains in yield can be achieved by selecting for yield in early generations, a foremost consideration needs to be the influence of different sites and years on the effectiveness of selection.
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    Response to selection for grain yield and harvest index in F2, F3 and F4 derived lines of two wheat crosses (1982)
    Springer
    Euphytica 31 (1982), S. 139-150 
    Details
    ISSN: 1573-5060
    Keywords: Wheat ; Triticum aestivum ; wheat breeding ; selection ; grain yield ; harvest index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Aspects of selection for yield and harvest index were investigated by simulating selection using data from random pedigreed F2, F3, F4 and F5 derived lines from two crosses grown in plots at two sites over two years. Improvement in yield through selection was obtained when the response was measured at the same site and in the same year as the selection. Selecting the best 10 per cent of F2 to F4 derived lines gave F5 derived lines that outyielded random selections by 19 to 53 per cent for one cross and 5 to 23 per cent for the second cross. These lines were 41 to 50 per cent better than the mid-parent in one cross, but were less than the mid-parent in the other cross. However, the response to selection when measured in a different year was little better than random selection. The effect of different sites also reduced the effectiveness of selection. Selection of harvest index in early generations for improvement of yield was ineffective when response was measured at the same site in the same year, or in different years. Contrary to some theoretical proposals, the same improvement in yield was obtained by selecting in early or late generations. While high yielding genotypes may be lost by delaying selection, this is counteracted by the better predictive value of late generations due to their greater homozygosity and homogeneity.
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    Effect of embryo age and culture media on plant growth and vernalization response in winter wheat (1982)
    Springer
    Euphytica 31 (1982), S. 629-634 
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    ISSN: 1573-5060
    Keywords: Triticum aestivum ; winter wheat ; vernalization ; cold treatment ; immature embryos ; excised embryos ; kinetin ; nutrient media ; seedling growth ; plant growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Embryo age and composition of nutrient medium affected plant growth and response to vernalization in winter wheat (Triticum aestivum L.). Root and shoot development was more in older than in younger excised embryos, and more in a medium without kinetin than in one with kinetin. Kinetin (2 mg/l) in the medium did not accelerate vernalization, probably because it tended to inhibit seedling and plant growth. Embryo age and media did not completely replace vernalization. Twenty- and 16-day-old embryos responded by flowering after 4 weeks of vernalization. Among plants raised on a standard medium from 20-day-old embryos and vernalized for 4 weeks, 84.2% flowered by or before 50 days after transplanting. Time from embryo culture to heading for 20-day-old embryos with-4-week vernalization averaged 84.6 days. Immature embryos (16–20 days old) needed only 4 weeks of vernalization compared to 6 weeks for mature embryos. Excised embryos could be vernalized as efficiently as seedlings raised by embryo culture. Embryo culture at 16–20 days after anthesis coupled with 4-week cold treatment shortens generation time of winter wheat by about 40 days.
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    Monosomic analysis of stem rust resistance in the wheat cultivar Almus (1982)
    Springer
    Euphytica 31 (1982), S. 965-970 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Puccinia graminis ; black rust ; stem rust ; aneuploids ; gene location
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Monosomic analysis of resistance to stem rust, race 11 (isolate G 425) was carried out in the cultivar Almus (GDR) possessing a 1B/1R translocation. F2 progenies of monosomic and disomic F1 plants of Almus crossed with 21 monosomic lines of Chinese Spring were tested. Two lines (1B and 6B) differed significantly from the disomic segregation ratio by a higher number of resistant plants and two other lines (1D and 6A) by a lower number of resistant plants. The results fitted a hypothesis comprising the interaction of two genes for resistance and two inhibitors.
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    Effects of crop residues, soil type and temperature on emergence and early growth of wheat (1983)
    Springer
    Plant and soil 74 (1983), S. 101-109 
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    ISSN: 1573-5036
    Keywords: Crop residue ; Root growth ; Shoot growth ; Soil types ; Temperature ; Triticum aestivum ; Wheat germination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Two controlled environment experiments were conducted to examine the germination and early growth of wheat (Triticum aestivum L. cv. Songlen) growing under crop residues of rape, sorghum, field pea and wheat. Additional treamments also included were soil type (Lithic Vertic Ustochrept and Plinthustalf) and temperature (8°C and 24°C to simulate winter and autumn sowing conditions). At low temperature, wheat and sorghum residues produced the most adverse effects on germination with all residues reducing emergence at high temperatures. Shoot lengths were also reduced by most residues at high temperatures whilst root lengths and shoot and root dry weights were unaffected by residue treatments. These results suggest major phytotoxic effects of residues during early growth (up to 14 days after sowing) with, in general, few interactions with soil type or temperature.
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    Growth and mineral composition of barley and wheat across sequences of Solonetzic soil (1983)
    Springer
    Plant and soil 74 (1983), S. 229-235 
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    ISSN: 1573-5036
    Keywords: Barley ; Hordeum vulgare ; Mineral composition ; Na−K interaction ; Solonetzic soil ; Solonetz-Solod sequence ; Triticum aestivum ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The growth and mineral composition of barley and wheat was measured across sequences of Solonetz and Solod soils. Growth of both species, along with root penetration was reduced on the Solonetz compared to the Solod soil. Mineral composition of the foliage and roots indicated that a Na−K interaction was present for the barley across the Solonetz-Solod sequences. Such factors were considered to be characteristics of soil—plant relationships on Solonetzic soils.
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    The development of waterlogging damage in wheat seedlings (Triticum aestivum L.) (1980)
    Springer
    Plant and soil 56 (1980), S. 187-199 
    Details
    ISSN: 1573-5036
    Keywords: Aeration ; Anaerobic ; Flooding ; Inorganic nutrients ; Mineral nutrition ; Nutrient accumulation ; Triticum aestivum ; Urea ; Waterlogging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Decreases in the concentrations of nitrogen, phosphorus, potassium, calcium and magnesium, in the shoots of wheat seedlings soon after the start of waterlogging were mainly attributed to an inhibition of ion uptake and transport by roots in the oxygen deficient soil. There was a small net accumulation of nitrogen, phosphorus and potassium by the aerial tissues, principally the tillers rather than the main shoot. By contrast, calcium and magnesium accumulated in both tillers and main shoot. With waterlogging, nitrogen, phosphorus and potassium were translocated from the older leaves to the younger growing leaves, and in the case of nitrogen this was associated with the onset of premature senescence. Calcium and magnesium were not translocated from the older leaves, the younger leaves acquiring these cations from the waterlogged soil. The promotion of leaf senescence by waterlogging was counteracted by applications of nitrate or ammonium to the soil surface, or by spraying the shoots with solutions of urea, but the beneficial effects on shoot growth were small. The role of mineral nutrition in relation to waterlogging damage to young cereal plants is discussed.
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    Effects of artificial acid rain on decomposition of spruce needles and on mobilisation and leaching of elements (1980)
    Springer
    Plant and soil 56 (1980), S. 365-378 
    Details
    ISSN: 1573-5036
    Keywords: Acid rain ; Calcium ; Decomposition ; Leaching ; Magnesium ; Manganese ; Mobilisation ; Nitrogen ; Phosphorus ; Potassium ; Spruce litter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Dry matter and chemical changes in decomposing spruce needles were investigated after 16 and 38 weeks in laboratory lysimeters treated with distilled water or distilled water acidified to pH 3 or 2 with sulphuric acid. The water was added twice weekly in quantities equal to 100 or 200 mm month−1. The CO2 evolution and leaching of P, K, Mg, Mn, and Ca was followed together with pH measurements of the leachate. The loss of dry matter was approximately 25% during the first 16 weeks and approximately 37% after 38 weeks. At the first samling, 16 weeks, the amount of material decomposed was greater from the lysimeters given 100 mm month−1 of water. At this water quantity dilute sulphuric acid increased the decomposition. After 38 weeks sulphuric acid at pH 3 and 2 had decreased the decomposition at 200 mm month−1. However, the effects of acid application were small. The effect of treatment using acidified water on the content of monosaccharides was not consistent, whereas there was an indication of reduced decomposition of lignin when treated with 200 mm water month−1 at pH 3 and 2. Nitrogen was conserved in the lysimeters with small differences between the various treatments. The order of mobility of metal elements was K〉Mg〉Mn〉Ca. Increasing the quantity of water increased the leaching of K especially, whereas addition of dilute sulphuric acid increased the leaching of Mg, Mn and particularly Ca. During the first 16 weeks of the experiment, sulphuric acid reduced the leaching of P while later on this treatment increased the leaching. The pH of the leachate from the lysimeters treated with distilled water was initially 4.0–4.6 increasing to approximately 6.6 after 22 weeks. The pH of the decomposed needle material was 4.6 and approximately 5.2 after 16 and 38 weeks respectively. When treated with water at pH 3 the pH of the leachate was between 4 and 5, and the pH of the needles 4.2–5.1. Treatment with water at pH 2 gave a leachate with pH just above 2 and decreased the pH of the needles that had received 200 mm ‘rain’ month−1 to 2.9. The effect of the artificial acid rain appears to be more pronounced on the leaching of metal elements than on the biological activity and the dynamics of N and P. The treatments must be considered extreme when compared with the acidity of natural rain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02143031
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    Effects of boron on nitrogen metabolism and sugar levels of sugar beet (1980)
    Springer
    Plant and soil 57 (1980), S. 3-9 
    Details
    ISSN: 1573-5036
    Keywords: B-deficient ; B-toxic ; Corrections ; Growth ; Leaf ; Metabolism ; Molybdenum ; Nitrate ; NRase ; Potassium ; Root ; Sap ; Sugar ; Yield
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of deficient and toxic levels of boron on various aspects of nitrogen metabolism in sugar beet are studied. Plant analysis shows a nitrate ion accumulation, a decrease in the activity of the nitrate reductase enzyme and a lower molybdenum absorption. The effect of boron levels on the plant and root sugar concentration has also been studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02139636
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  • 97
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    Aluminium effects on growth and Al, Ca, Mg, K and P levels in triticale, wheat and rye (1980)
    Springer
    Plant and soil 57 (1980), S. 467-470 
    Details
    ISSN: 1573-5036
    Keywords: Aluminum concentration ; Aluminum toxicity ; Calcium ; Magnesium ; Nutrient solution ; Phosphorus ; Potassium ; Triticale ; Rye ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of A1 on the growth and mineral composition of different cultivars of triticale (X Triticosecale, Wittmack), wheat (Triticum aestivum L.) and rye (Secale cereale L.) growing in 1/5 strength Steinberg solutions containing 0 or 6 ppm A1 were evaluated after 32 days. Aluminum increased the concentrations of P and K in the roots and K in the tops of most of the cultivars tested. A1 tolerant triticale retained a lower concentration of Mg in the roots and tops than the A1 sensitive triticale, when subjected to A1 stress. In addition, A1 treatments resulted in smaller increases in root P for the A1 tolerant triticale than for the A1 sensitive cultivars. The concentration of root Ca and P of the A1 tolerant wheat cultivars were significantly below that of the more sensitive plants. Aluminum tolerance in rye appeared to be associated with lower Ca and higher Mg concentrations in the tops. The accumulation of P and A1 in the roots was characteristic of sensitivity in triticale, wheat and rye.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02211704
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  • 98
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    The uptake of sodium by perennial ryegrass and its relationship to potassium supply in flowing solution culture (1981)
    Springer
    Plant and soil 60 (1981), S. 73-83 
    Details
    ISSN: 1573-5036
    Keywords: Distribution (shoots roots) ; Flowing solution culture ; H-ions ; Lolium perenne ; Potassium ; Sodium ; Uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The uptake of Na and K by perennial ryegrass from flowing solution culture with monitored concentrations of Na and K was followed in two experiments. In the first, when only 50 and 10 per cent of the K uptake by one set of plants, grown with K held constant at 2.5 μeq 1−1, was supplied to two other linked sets of plants and the balance supplied as Na, there was a rapid decrease in K, and an increase in Na, concentration in the shoots over a 20-day period. However, when compared with the plants grown in K in solution held constant, there was not a complete replacement of Na for K. In the second experiment the concentration of K in the culture solution was held constant at 2 μeq 1−1 and Na at 0, 5, 25, 50 and 100 μeq 1−1. Although uptake of Na increased with increasing concentration in solution the contents in the plants were low,i.e. less than 0.19 per cent and decreased with time. There was an increase in the yield of both shoots and roots with increasing Na in the solution; it was suggested that, during the early stages of growth there may have been an inadequate supply of K and that Na may have substituted for K in some of the non-specific roles of K in the plants. There was evidence in both experiments that a flux of H-ions was involved in the uptake of Na.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02377113
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  • 99
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    Studies on multilines in wheat (Triticum aestivum L.).12. Breeding of a multiline variety by convergence of breeding lines (1980)
    Springer
    Euphytica 29 (1980), S. 125-128 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; bread wheat multiline ; limited backcross
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The variation among the component lines of the KSML 3 (a multiline based on cultivar Kalyansona, spring bread wheat) was studied for agronomic characteristics. For days to earing and plant height the variation was small. This helped in imparting uniformity to the multiline. The lines had an improved tillering ability and had larger seeds. This partially explained the increased yield potential of the multiline as compared with Kalyansona. All the lines were susceptible only to one or two races of the yellow and brown rust. In no case any race was virulent against all the lines. In the field all the lines were resistant to both rusts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037257
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  • 100
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    Comparison of lattice designs, check plots, and moving means in wheat breeding trials (1980)
    Springer
    Euphytica 29 (1980), S. 129-133 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; randomized complete block designs ; lattice designs ; check plots ; moving means ; heritabilities ; coefficients of variation ; grain yield ; height ; test weight ; seed weight
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Efficiencies of lattice designs, check plot designs, and moving means were compared in seven environments for control of error in wheat breeding trials. Lattice analyses of lattice designs and check plot covariance analyses of check plot designs gave similar CV's and intra-site heritabilities and were superior to direct RCBD analyses of these designs. Moving mean covariance analyses were generally only slightly less efficient than lattice analyses or check plot covariance analyses. Differences between designs and methods of analysis, which were evident on an intra-site basis, were not evident from combined analyses indicating that genotype x environment interaction is much more important than intra-site error in limiting progress from selection. Moving mean covariance analyses with 2 replicates per location and as many locations as feasible is suggested as a useful strategy for early generation wheat breeding trials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037258
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