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  • Triticum aestivum
  • Springer  (13)
  • American Meteorological Society
  • 2005-2009
  • 1980-1984  (13)
  • 1925-1929
  • 1980  (13)
Collection
Keywords
Publisher
  • Springer  (13)
  • American Meteorological Society
Years
  • 2005-2009
  • 1980-1984  (13)
  • 1925-1929
Year
  • 1
    Electronic Resource
    Electronic Resource
    The effect of B-chromosomes of rye on the chromosome association in F1 hybrids Triticum aestivum x Secale cereale in the absence of chromosomes 5B or 5D (1980)
    Springer
    Theoretical and applied genetics 56 (1980), S. 193-198 
    Details
    ISSN: 1432-2242
    Keywords: B-Chromosomes ; Chromosome associations ; Triticum aestivum ; Secale cereale hybrids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary T. aestivum var. ‘Chinese Spring’ (monosomic 5B and 5D, respectively) was crossed with S. cereale (with and without B-chromosomes). The resulting nullisomic 5B hybrids exhibited a high degree of chromosome association both at 20°C and 10°C. The presence of B-chromosomes reduced association slightly whether 5B was present or not. In nullisomic 5D hybrids B-chromosomes of rye raise chromosome association at 20°C when compared to hybrids with 5D, with as well as without, B's. At 10°C, due to the absence of the Ltp gene on 5D, chromosome association in nullisomic 5D hybrids is low, and no effects of rye B-chromosomes is detectable. The hypothesis that B-chromosomes of rye carry (an) asynaptic gene(s) decreasing effective pairing, and (an) independent post-synaptic gene(s) increasing chiasma frequency on effective pairing sites, is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00295448
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  • 2
    Electronic Resource
    Electronic Resource
    Induction of haploid and diploid plants though in vitro anther culture of haploid wheat (n=3x=21) (1980)
    Springer
    Theoretical and applied genetics 57 (1980), S. 57-58 
    Details
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; Anther culture ; Haploid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Five haploid plants of wheat were used for anther culture. Embryos were formed and six plants were regenerated. Of these, two were haploid (n=3x=21) and two diploid (2n=6x=42). The two diploids derived from the anthers of the same haploid wheat plant gave seeds, but the fertility was reduced in one of them showing, abnormalities at meiosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00745029
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  • 3
    Electronic Resource
    Electronic Resource
    Induction of haploid and diploid plants though in vitro anther culture of haploid wheat (n=3x=21) (1980)
    Springer
    Theoretical and applied genetics 57 (1980), S. 57-58 
    Details
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; Anther culture ; Haploid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Five haploid plants of wheat were used for anther culture. Embryos were formed and six plants were regenerated. Of these, two were haploid (n=3x=21) and two diploid (2n=6x=42). The two diploids derived from the anthers of the same haploid wheat plant gave seeds, but the fertility was reduced in one of them showing, abnormalities at meiosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276401
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  • 4
    Electronic Resource
    Electronic Resource
    Genotypic effects of the maternal tissues of wheat on its grain weight (1980)
    Springer
    Theoretical and applied genetics 58 (1980), S. 247-252 
    Details
    ISSN: 1432-2242
    Keywords: Maternal tissues ; Grain weight ; Wheat ; Triticum aestivum ; Caryopsis ; Pericarp ; Endosperm ; Embryo
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Reciprocal crosses were made between semi dwarf spring wheat cultivars (Triticum aestivum L.) differing in grain weight. The weights of the F1 grains (on maternal spikes), from intact as well as from defoliated plants, and those of the F2 grains (on f1 spikes), were examined. Grain weight was controlled primarily by the genotype of the maternal tissues (pericarp, testa or other floret or spikelet organs, including the vascular system), with complete dominance of heaviness. No indications suggesting maternal inheritance were obtained. The frequency distribution of the weights of the F2 grains indicated the presence of genotypic effects exerted by the endosperm or embryo. The embryo or endosperm factors for heaviness also seemed to be dominant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00265174
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  • 5
    Electronic Resource
    Electronic Resource
    The validity of the lead precipitation technique for the localization of ATPase activity in plant cells (1980)
    Springer
    Protoplasma 104 (1980), S. 193-200 
    Details
    ISSN: 1615-6102
    Keywords: Analytical electron microscopy ; ATPase cytochemistry ; Plasma membrane ; Ricinus communis ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The claim that osmium-containing deposits which lack lead are frequently and incorrectly interpreted as enzymatic reaction products in lead precipitation techniques for ATPase localization in plants is without foundation. Proper controls clearly demonstrate the enzymatic origin of membrane-located deposits and the presence of lead is confirmed by analytical electron microscopy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01279767
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of phytohormones on chlorophyll degradation during aging of chloroplastsin vivo andin vitro (1980)
    Springer
    Protoplasma 105 (1980), S. 1-8 
    Details
    ISSN: 1615-6102
    Keywords: Aging ; Chloroplast ; Phytohormones ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Phytohormones like IAA and kinetin inhibit chlorophyll loss during aging of wheat chloroplasts duringin vivo andin vitro. GA, on the other hand, stimulates the pigment degradation during aging of attached leaves in contrast to its senescence inhibiting action in detached leaves and isolated chloroplasts. A shift in optimum concentration of hormone in inhibiting chlorophyll degradation suggests a differential pool size of endogenous hormone regulating aging of chloroplastsin vivo andin vitro. The retardation of chlorophyll loss by kinetin, IAA and GA during aging of chloroplastsin vitro would indicate that the effect of hormones in preventing yellowing of senescing leaves may be mediated through their direct action on chloroplasts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01279845
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  • 7
    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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  • 8
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023219
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  • 9
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023224
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  • 10
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02205847
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  • 11
    Electronic Resource
    Electronic Resource
    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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  • 12
    Electronic Resource
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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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  • 13
    Electronic Resource
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    The site of action of the crossability genes (Kr 1, Kr 2) between Triticum and Secale. I. Pollen germination, pollen tube growth, and number of pollen tubes (1980)
    Springer
    Euphytica 29 (1980), S. 571-579 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Secale cereale ; rye ; site of action ; crossability ; pollen germination ; pollen tube growth ; number of pollen tubes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Seven genotypes of common wheat (Triticum aestivum L.) were crossed with rye (Secale cereale L.) in order to find the site or sites of action of the crossability genes, Kr 1 and Kr 2, of wheat. The data obtained, by fluorescence microscopy, were compared to the controls (wheat x wheat). The results indicate that the crossability genes have little effect on pollen germination and on the time taken for the pollen tubes to reach the microphyle, irrespective of their crossabilities with rye. The number of pollen tubes reaching the microphyle is, however, affected by the Kr-genes, as high crossable genotypes have more pollen tubes than the low crossable ones. There was a high correlation between the mean number of pollen tubes at the micropyle with seed set, which also reflects the crossability. The Kr-genes seem to manifest themselves in the retardation and inhibition of pollen tube growth between the style base and the top of the embryo sac, where the effect is most distinct in the low crossable genotypes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023204
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