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  • Articles  (17)
  • Articles: DFG German National Licenses  (17)
  • Articles and Proceedings (GFZpublic)
  • barley  (17)
  • 1990-1994
  • 1985-1989  (17)
  • 1950-1954
  • 1987  (17)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (17)
  • History
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  • Articles  (17)
Source
  • Articles: DFG German National Licenses  (17)
  • Articles and Proceedings (GFZpublic)
Keywords
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Years
  • 1990-1994
  • 1985-1989  (17)
  • 1950-1954
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  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (17)
  • History
  • Biology  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Critical levels of Mn in coarse textured rice soils in India for predicting response of barley to Mn application (1987)
    Springer
    Nutrient cycling in agroecosystems 11 (1987), S. 61-67 
    Details
    ISSN: 1573-0867
    Keywords: critical levels of Mn ; coarse textured rice soils ; Mn deficiency ; barley
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Green house studies of 20 soils, having a range in DTPA extractable Mn, were made to determine the critical deficiency level of Mn for predicting response of barley to Mn application. Soil Mn was significantly related with both Bray's per cent dry matter yeild (r = 0.70**) and Mn uptake (r = 0.65**). Soil application of 25 mg Mn kg−1 soil significantly increased yield. Both graphical and statistical models of Cate and Nelson indicated the critical level to be 2.05 mg kg−1 soil of DTPA extractable Mn. The critical Mn deficiency level in 45 day barley plants was 18.6 mg kg−1 dry matter. The predictability of soil and plant critical Mn level was 91 and 80 per cent respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01049564
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of lime on phosphorus adsorption and barley growth in three acid soils (1987)
    Springer
    Plant and soil 103 (1987), S. 75-82 
    Details
    ISSN: 1573-5036
    Keywords: acid soils ; Al toxicity ; barley ; lime ; P adsorption ; P availability ; plant growth ; soil pH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract For three acid soils from Santa Catarina, Brazil, lime application and time of incubation with lime had little effect on the adsorption of added phosphorus. In two soils with high contents of exchangeable aluminium, solution P and isotopically exchangeable P were decreased by incubating with lime for 1 month: phosphorus was probably adsorbing on freshly precipitated aluminium hydrous oxides. In one soil with less exchangeable aluminium, P in solution was increased by liming. After 23 months lime increased solution and exchangeable P possibly due to crystallization of aluminium hydrous oxides reducing the number of sites for P adsorption. All these changes were however small. In a pot experiment, lime and phosphorus markedly increased barley shoot and root dry matter and P uptake. Although liming reduced P availability measured by solution P, isotopically exchangeable P and resin extractable P, it increased phosphorus uptake by reducing aluminium toxicity and promoting better root growth. The soil aluminium saturation was reduced by liming, but the concentration of aluminium in roots changed only slightly. The roots accumulated aluminium without apparently being damaged.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370670
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  • 3
    Electronic Resource
    Electronic Resource
    Screening for resistance against Rhopalosiphum padi (L.). 2. Hordeum species and interspecific hybrids (1987)
    Springer
    Euphytica 36 (1987), S. 571-576 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum ; barley ; Rhopalosiphum padi ; brid cherry-oat aphid ; resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Twenty-seven accessions of Hordeum species and interspecific hybrids were screened in a growth chamber for resistance against the aphid Rhopalosiphum padi. Resistance measurement was based on the aphids' population growth during a 16-day period. The mean number of nymphs produced per female was only about 14% of that on the control cv. Tellus. H. bogdani was the most resistant accession. As a group, interspecific F1-hybrids with common barley (H. vulgare × H. sp.) held an intermediate position. Differences in resistance between hybrids as well as between species (H. jubatum and H. lechleri) were observed. The most resistant species were all diploids. No effects of the host plant on formation of alatae or on the within-plant distribution of aphids were found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041504
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  • 4
    Electronic Resource
    Electronic Resource
    Genetic diversity in barley landraces from Syria and Jordan (1987)
    Springer
    Euphytica 36 (1987), S. 389-405 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; landraces ; environmental stress ; breeding for dry areas ; multilines ; genetic diversity ; genetic resources ; variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Single-head progenies derived from barley landraces collected along the Fertile Crescent in Syria and Jordan were evaluated for agronomic, morphological, and quality traits in a typical barley growing area in Northern Syria. A large diversity was observed both between and within collection sites, and in most cases the variation was useful for breeding purposes. Single plant progenies were identified with larger yields and more desirable expressions of agronomic characters than the original landraces. The utilization of this material in a breeding program for dry areas is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041482
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  • 5
    Electronic Resource
    Electronic Resource
    Evaluation of barley yellow dwarf tolerance from plant traits in two winter × spring barley crosses (1987)
    Springer
    Euphytica 36 (1987), S. 585-589 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; barley yellow dwarf ; inoculated ; Rhopalosiphum padi ; Yd2 gene locus ; tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Winter-type experimental lines from crosses of two winter-type barley cultivars with a spring-type, barley yellow dwarf (BYD) tolerant cultivar were compared in inoculated and uninoculated hill plots. Mature plants traits-winter survival, height, number of spike-bearing tillers, and biomass-were examined. The experimental lines could not be compared with the BYD tolerant parent using these diagnostic symptoms since the spring-type parent would be winterkilled. Two criteria were used to rate experimental lines for BYD tolerance: (1) nonsignificant difference between BYD-inoculated and BYD-uninoculated treatments for all traits, and (2) a BYD injury score obtained by averaging percent reduction from BYD infection for each trait.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041507
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of plant age on temporal progression of common root-rot (Cochliobolus sativus) lesions on subcrown internodes of wheat and barley (1987)
    Springer
    Plant and soil 101 (1987), S. 127-132 
    Details
    ISSN: 1573-5036
    Keywords: barley ; Cochliobolus sativus ; common root rot ; subcrown internode ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The progression of common root-rot lesions on subcrown internodes of Neepawa wheat and Bonanza barley plants inoculated 14, 26, 38 and 50 days after seeding was measured in growth chamber tests. Both in wheat and barley, lesion development was more rapid in older than in younger plants. Variables such as mean daily rates of linear progression of lesions, disease ratings, and proportion of plants becoming severely diseased were higher in older than in younger plants. The possible stress resulting from the removal of the crown roots on more rapid disease development in older than in younger plants is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02371040
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  • 7
    Electronic Resource
    Electronic Resource
    Field calibration of liming responses of four crops using soil pH, Al and Mn (1987)
    Springer
    Plant and soil 102 (1987), S. 21-25 
    Details
    ISSN: 1573-5036
    Keywords: alfalfa ; barley ; liming ; rape ; red clover ; relative crop yields ; soil acidity ; soil pH and aluminium and manganese toxicities ; soil test for Al and Mn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Liming trials were conducted at 28 sites in the western Great Plains of Canada for barley, rape, red clover and alfalfa. Yield increases from liming correlated with soil pH and Al but not with Mn. When all sites were included, yield increases from liming correlated closely (r=0.86 to 0.94) with exchangeable Al, percent Al saturation and 0.02M CaCl2-Al for barley, rape and red clover, these responses having correlated less well (R=0.56 to 0.72) with soil pH. Alfalfa yield responses gave low correlations with both pH and the Al measurements. When only the sites with soil pH≥5 were used, the yield responses to lime of barley and rape still correlated better with the Al measurements than with pH even though the correlations, in general, were much lower than when all sites were included. For the sites with soil pH〉-5, the correlations were highest for yield responses of barley and rape with 0.02M CaCl2-Al. It is suggested that the use of toxic Al and Mn for routinely diagnosing the limiting factor by soil acidity could improve on the economy of liming.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370895
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  • 8
    Electronic Resource
    Electronic Resource
    Tiller expansion and retranslocation of previously absorbed nitrogen among main stems, tillers and roots of two barley cultivars (1987)
    Springer
    Plant and soil 102 (1987), S. 61-64 
    Details
    ISSN: 1573-5036
    Keywords: barley ; cultivar ; main stem ; net flux ; nitrogen ; partitioning ; root ; tiller ; vegetative adaptation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Barley plants (Hordeum vulgare L. cvs Hellas and Kajsa), grown in nutrient solutions, were supplied with15NO 3 − from day 12 to day 16. Changes in distribution of15N between different plant parts were followed during ageing, (days 16, 28 and 52) to study differences in redistribution of N induced by variation in NO 3 − supply and choice of cultivar. Main stems and tillers competed for previously absorbed N and their competitive strength depended on their growth rate. Inhibition of tillering during N stress protected the main stem from detrimental losses of a limiting resource. Tillers on Hellas received in most cases proportionally more15N from the rest of the plant than tillers on Kajsa.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370901
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  • 9
    Electronic Resource
    Electronic Resource
    Root dynamics in barley, lucerne and meadow fescue investigated with a mini-rhizotron technique (1987)
    Springer
    Plant and soil 103 (1987), S. 33-38 
    Details
    ISSN: 1573-5036
    Keywords: barley ; depth distribution ; lucerne ; meadow fescue ; mini-rhizotron ; root dynamics ; undersowing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Root development, including depth distribution, was followed in pure barley stands (Hordeum distichum, L.) with or without nitrogen fertilization and in barley undersown with lucerne (Medicago sativa L.) or meadow fescue (Festuca pratensis, Huds.). The number of roots per 5 cm depth level down to 1 m was counted frequently during the growing season using mini-rhizotrons, i.e., transparent tubes inserted into the soil. Root biomass at different depths down to 1 m was estimated from soil cores taken one month before harvest. The results from the two methods were compared and root counts in the different treatments were compared with the above-ground growth and production. Nitrogen-fertilized barley in pure stand had the highest biomass both above and below ground. According to the mini-rhizotron observations this treatment also had a deeper and denser root system, until barley harvest, than the other treatments. After barley harvest, roots from the undersown lucerne continued to increase, whereas the number of roots in the undersown meadow fescue remained the same. The root system in barley/meadow fescue did not penetrate into the subsoil, where more than 60% of the number of roots in barley undersown with lucerne were found. In general, the mini-rhizotron results indicated a higher relative abundance of roots in the deeper layers than the root biomass estimated with the soil coring method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370664
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  • 10
    Electronic Resource
    Electronic Resource
    Salt tolerance of barley (Hordeum vulgare L.) cultivars at the germination stage: Analysis of the response functions (1987)
    Springer
    Plant and soil 104 (1987), S. 53-56 
    Details
    ISSN: 1573-5036
    Keywords: barley ; germination ; response functions ; salt tolerance ; screening ; threshold salinity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Two models, initially proposed by Van Genuchten (1983) for evaluating salinity-yield response curves at the adult stage, were applied to study the salinity response of 24 barley cultivars at the germination stage. According to the calculated salinity threshold, ECt (the solution electrical conductivity, EC, at which germination starts to decrease), and EC50 (the solution EC at which germination is reduced by 50%) parameters, both models give similar results, although model 2, a sigmoid-form curve, fits the observed data slightly better than model 1, a piecewise response function. Also, the results suggest that, for model 1, ECt seems to be the most reliable parameter for screening barley germplasm because it clearly discriminates the relative salt-tolerance of the studied cultivars and, furthermore, it basically determines their salinity response for the 100 to 50% germination interval. On the other hand, the model 1 s parameter — percent germination decrease per unit salinity increase bove ECt—is less relevant because of its smaller variation interval and lack of correlation with EC50, indicating that the salinity response of the studied cultivars for the 50% germination value is independent of this parameter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370624
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  • 11
    Electronic Resource
    Electronic Resource
    Mineralization of nitrogen from15N labelled fungi, soil microbial biomass and roots and its uptake by barley plants (1987)
    Springer
    Plant and soil 102 (1987), S. 71-78 
    Details
    ISSN: 1573-5036
    Keywords: barley ; chloroform fumigation ; fungi ; 15N-nitrate ; microbial biomass N ; mineralization ; roots
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The availability of nitrogen in15N labelled fungi, soil microbial biomass (Ca(15NO3)2 immobilized by addition of glucose), barley roots and Ca(NO3)2 to barley plants was investigated in a greenhouse experiment. Samples of above-ground plant biomass were taken five times during 76 days. During this time, and at the start of the experiment, the C and N contents of the soil microbial biomass were determined. Microbial biomass-C decreased during the first 41 days, and then increased back to pre-treatment levels. Only 2% of the total soil15N was found in the microbial biomass two days after additions of Ca(15NO3)2. At the final sampling 76 days later, 17% of the15N remaining in soil was found in the microbial biomass. In the other tratments, microbial biomass-N accounted for 20% of remaining soil15N in the one that had received fungi, 29% in the one with barley roots and 35% in the Ca(NO3)2 plus glucose treatment. At harvest, 38% of the soil15N at day 0 added as Ca(NO3)2-N, 29% of fungal-N, 10% of N immobilized in the soil microbial biomass and 7% of N in barley roots was recovered in the above-ground plant biomass. It can be concluded that nitrogen in the native soil biomass is resistant to mineralization and plant uptake. The use of laboratory grown organisms for mineralization studies will overestimate the plant availability of nitrogen in soil microorganisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370903
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  • 12
    Electronic Resource
    Electronic Resource
    Yield potential and drought tolerance of segregating populations of barley in contrasting environments (1987)
    Springer
    Euphytica 36 (1987), S. 265-273 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; dry areas ; stress-tolerance ; stability ; bulk method ; multilocation testing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Using the traditional approach (selection for grain yield) it has been found that F3 families derived from F2's selected under unfavourable conditions were more vigorous in the early stages of growth, taller, earlier in heading and with larger yields than F3 families derived from F2's selected under favourable conditions. A high and negative correlation coefficient was found between the drought susceptibility index and grain yield at the driest site, whereas at the wettest site the correlation coefficients were lower and in some cases positive, indicating the existence of traits which are desirable under drought and undesirable under favourable conditions, or vice versa. Expected responses to selection for grain yield using different selection criteria indicated that selection under stress conditions is expected to be more efficient than selection under favourable conditions when dry areas is the target environment. Expected responses to selection for grain yield using different selection criteria indicated that selection under stress conditions is expected to be more efficient than selection under favourable conditions when dry areas is the target environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00730673
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  • 13
    Electronic Resource
    Electronic Resource
    Effect of wheat and barley varietal differences in nitrate concentration on plant analysis interpretation (1987)
    Springer
    Nutrient cycling in agroecosystems 12 (1987), S. 157-163 
    Details
    ISSN: 1573-0867
    Keywords: barley ; wheat ; nitrate concentration ; plant analysis ; genotypic differences
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Wheat and barley varieties from breeding plots in advanced yield trials were tested for NO3 concentration in their stems at the tillering stage. The study was carried out for three years, at three different locations with a high number of varieties, aiming to determine whether there are varietal differences which could affect the interpretation of prognostic standards set up in a previous study. From nine comparisons between 12 different varieties it was shown that differences in NO3 concentration occurred on only three occasions and these were due to factors which affect NO3 in plants, other than genotypic. The study concluded that varietal differences in NO3 concentration are not a critical consideration for the interpretation of prognostic standards for genotypes which have been developed for certain environmental conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01048915
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  • 14
    Electronic Resource
    Electronic Resource
    The importance of abortive stoma penetration in the partial resistance and nonhost reaction of adult barley and wheat plants to leaf rust fungi (1987)
    Springer
    Euphytica 36 (1987), S. 725-731 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Triticum aestivum ; breadwheat ; Puccinia hordei ; Puccinia recondita f.sp. tritici ; leaf rust ; partial resistance ; nonhost resistance ; adult plant ; stoma penetration ; stomatal exclusion ; histology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Early stages of the infection process of Puccinia hordei isolate 1.2.1 and of a P. recondita f.sp. tritici isolate were studied on adult plants of four barley lines and one wheat line. Two of the barley lines are extremely susceptible to P. hordei, the other two have a very high level of partial resistance. A histological study based on a trypan blue staining indicated that stoma penetration by P. hordei isolate 1.2.1 was equally successful on the susceptible as on the partially resistant adult barley plants. Abortion of substomatal vesicles was rare in all lines. These results do not support a hypothesis that mechanisms of partial resistance in adult plants differ from those in seedlings by a substantial abortive stoma penetration. Also in the nonhost combinations wheat-P. hordei and barley-P. recondita f.sp. tritici inhibition of stoma penetration and of substomatal vesicle development appears to play a biologically insignificant role in adult plants. The proportion of stoma penetration on the leaf sheaths of two of the barley lines was as high as on the leaf blades of the flag leaf and the leaf below the flag leaf. There was no evidence for stomatal exclusion as a crucial factor in the relatively low infectibility of leaf sheaths to leaf-blade specialized rust species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00051855
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  • 15
    Electronic Resource
    Electronic Resource
    Infrared thermometry leaf temperature measurements and common root rot of spring wheat and spring barley (1987)
    Springer
    Plant and soil 101 (1987), S. 287-290 
    Details
    ISSN: 1573-5036
    Keywords: barley ; common root rot ; infrared thermometry ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In field trials done from 1983 to 1985, two cultivars of wheat and two cultivars of barley were rated periodically for common root rot, and leaf temperatures were recorded with a hand-held infrared thermometer. Significant differences for common root rot occurred between cultivars of both wheat and barley but leaf temperatures did not differ among cultivars. Disease rating and leaf temperature were not correlated in wheat and only 2 of 47 comparisons were positively correlated in barley.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370657
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  • 16
    Electronic Resource
    Electronic Resource
    In situ nitrate reductase activity as an indicator of nitrate availability (1987)
    Springer
    Plant and soil 102 (1987), S. 145-148 
    Details
    ISSN: 1573-5036
    Keywords: barley ; fertilizer ; nitrate ; nitrate reductase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effect of external nitrate concentration in the nutrient solution on nitrate reduction by 7-day-old barley seedlings was investigated using anin situ nitrate reductase activity (NRA) assay, performed with or without exogenous nitrate during the incubation. The difference between plus and minus nitrate NRA of the leaves related to plus nitrate NRA decreased with increasing nitrate concentration in the nutrient solution. Furthermore, the root contribution to the whole plant NRA became predominant at low external nitrate levels. It is proposed that plus and minus nitrate NRA should be used together as an indicator of nitrate availability in the medium and of root contribution to whole plant nitrate reduction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370917
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  • 17
    Electronic Resource
    Electronic Resource
    Plant regeneration from embryo-callus culture in barley (1987)
    Springer
    Euphytica 36 (1987), S. 659-665 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; regeneration ; somaclonal variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Plants were regenerated from callus cultures initiated from immature embryos of barley, Hordeum vulgare L. Immature embryos from seven diverse genotypes were cultured on modified Murashige and Skoog (MS) medium supplemented with 1.5 mg 2,4-D and 6.5 mg IAA/l. Of the 249 embryos cultured, 30% initiated callus within 8 days. Subculture of callus for 80 to 100 days on half-MS medium supplemented with 0.5 mg/l 2,4-D and 1.0 mg/l zeatin resulted in organogenesis. Culture of organogenic calli for 30 days on half-MS medium without growth regulators produced plants which originated mostly via multiple shoot formation. Callusing response of the tested genotypes ranged from zero to 44%; however, only 23% of the calli were regenerative. Regenerated plants included variants for chlorophyll deficiency, plant height, stem thickness, spike shape, pollen fertility, seed set and ploidy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041516
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