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  • Triticum aestivum  (56)
  • Springer  (56)
  • American Chemical Society
  • American Institute of Physics
  • Elsevier
  • 1985-1989  (56)
Collection
Keywords
Publisher
  • Springer  (56)
  • American Chemical Society
  • American Institute of Physics
  • Elsevier
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Inoculation of field-grown wheat (Triticum aestivum) with Azospirillum spp. in Brazil (1987)
    Springer
    Biology and fertility of soils 4 (1987), S. 37-40 
    Details
    ISSN: 1432-0789
    Keywords: Azospirillum brasilense ; Azospirillum amazonense ; rate reductase ; Inoculation ; Wheat ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three field experiments with wheat were conducted in 1983, 1984, and 1985 in Terra Roxa soil in Paraná, the major Brazilian wheat-growing region, to study inoculation effects of various strains of Azospirillum brasilense and A. amazonense. In all three experiments inoculation with A. brasilense Sp 245 isolated from surface-sterilized wheat roots in Paraná produced the highest plant dry weights and highest N% in plant tops and grain. Grain yield increases with this strain were up to 31 % but were not significant. The application of 60 or 100 kg N ha−1 to the controls increased N accumulation and produced yields less than inoculation with this strain. Another A. brasilense strain from surface-sterilized wheat roots (Sp 107st) also produced increased N assimilation at the lower N fertilizer level but reduced dry weights at the high N level, while strain Sp 7 + Cd reduced dry weights and N% in the straw at both N levels. The A. amazonense strain isolated from washed roots and a nitrate reductase negative mutant of strain Sp 245 were ineffective. Strains Sp 245 and Sp 107st showed the best establishment within roots while strain Cd established only in the soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00280348
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  • 2
    Electronic Resource
    Electronic Resource
    Chromosomal location of genes controlling heat shock proteins in hexaploid wheat (1989)
    Springer
    Theoretical and applied genetics 78 (1989), S. 873-878 
    Details
    ISSN: 1432-2242
    Keywords: Heat shock proteins ; 2D electrophoresis ; Triticum aestivum ; Gene location ; Gene regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The low molecular weight heat shock protein (HSP) profiles of the hexaploid wheat cultivar “Chinese Spring” and its ditelosomic series were characterized by isoelectric focusing polyacrylamide gel electrophoresis of denatured in vivo radiolabeled proteins. Comparisons of the ditelosomics (DTs) to the euploid “Chinese Spring” enabled the assignment of genes controlling 9 of the 13 targeted HSPs to seven chromosome arms. There did not appear to be a genome-specific action in the regulation of expression of these HSPs. There did appear to be a higher frequency of controlling genes within homoeologous DT lines 3, 4 and 7. Significant variation in protein quantity was evident among the DT lines for some HSPs, while other HSPs were remarkably stable in their expression across all DTs examined. The results are useful in identifying specific DT lines for the investigation of HSP functions in hexaploid wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266674
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of copper on stem melanosis and yield of wheat: Sources, rates and methods of application (1989)
    Springer
    Plant and soil 119 (1989), S. 199-204 
    Details
    ISSN: 1573-5036
    Keywords: copper sources ; grain yield ; methods of application ; park wheat ; stem melanosis ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Park wheat (Triticum aestivum cv. Park) is susceptible to stem melanosis when grown on Cu-deficient soils. Three field experiments were conducted to evaluate the effectiveness of various Cu sources, using different methods and rates of application for reducing the incidence of stem melanosis and increasing the grain yield of Park wheat on a Cu-deficient Black Chernozemic soil in central Alberta. A fourth experiment determined the residual effect of Cu over 4 years. In the first experiment, Park wheat had less disease and higher grain yield when Cu-chelate solution at 2 and 4 kg Cu ha−1 or Cu-sulfate solution at 10 and 20 kg Cu ha−1 was applied to the soil surface and incorporated to a depth of 8 cm or was applied at these rates as a foliar spray. The foliar application, however, was phytotoxic and delayed maturity by approximately two weeks. Sidebanding Cu (4 cm to the side and 4 cm below the seed row) was least effective. In the second experiment, Cu-sulfate solution incorporated into the soil was more effective than the soil incorporated granular Cu-sulfate in reducing disease incidence and increasing grain yield in the year of application. In the following year the granular Cu was as effective as solution Cu. The third experiment showed that Cu seed dressings did not have any effect on disease incidence or grain yield of Park wheat. In the fourth experiment, the residual effect of Cu-chelate was evident four years after application. The grain yield in the fourth year was about four times that of the control.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370408
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  • 4
    Electronic Resource
    Electronic Resource
    Responses of wheat and barley genotypes to toxic concentrations of soil boron (1988)
    Springer
    Euphytica 39 (1988), S. 137-144 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Hordeum vulgare ; barley ; boron toxicity ; variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The growth and yield of seven wheat and two barley cultivars or lines, previously found to show different degrees of boron tolerance under field conditions, were compared in a pot experiment at a range of soil boron treatments. Soil treatments ranged up to 150 mg/kg applied B. Extractable B in soils ranged up to 103 mg/kg. At the highest B treatment seedling emergence was delayed, but the percentage emergence was not reduced. The degree of boron toxicity symptom expression varied between the wheat cultivars and lines, with the two most tolerant, Halberd and (Wq*KP)*WmH)/6/12, displaying the least symptoms. The concentration of boron applied to the soil which produced a significant depression of growth and yield varied between cultivars. For example, the yield of (Wq*KP)*WmH)/6/12 was not affected at the 100 mg/kg applied boron treatment, while the grain yield for (Wl*MMC)/W1/10 was significantly reduced at the 25 mg/kg treatment. There was a linear increase in boron concentration in tillers at the boot-stage with increasing concentration of boron in the soil. The most boron tolerant genotypes had the lowest tissue boron concentrations in each of the treatments. Halberd and (Wq*KP)*WmH)/6/12 had approximately half the boron concentrations of the more sensitive genotypes at the 25 and 50 mg/kg treatments. Differential tolerance of boron within the tissue was also observed. Both Stirling and (Wl*MMC)/W1/10 had significantly reduced total dry matter and grain yields at the 25 mg/kg treatment, while the concentrations of boron in boot stage tillers at this treatment were 118 and 100 mg/kg, respectively. On the other hand, Halberd and (Wq*KP)*WmH)/6/12 had tissue boron concentrations of 144 and 131 mg/kg, respectively, at the 50 mg/kg treatment but yield was unaffected. The relative responses in the pot experiment, for wheat, were in close agreement with field results. Halberd and (Wq*KP)*WmH)/6/12 had the highest grain yields, with the lowest concentrations of boron in the grain when grown under high boron conditions in the field. In pots these two genotypes proved to be the most tolerant of boron. For barley the advantage in grain yield in the field, expressed by WI-2584 compared with Stirling, was not repeated in pots. WI-2584 was, however, more tolerant than Stirling on the basis of total dry matter production. The results show that useful variation in boron tolerance exists among wheat, and that breeding should be able to provide cultivars tolerant to high levels of boron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039866
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  • 5
    Electronic Resource
    Electronic Resource
    Stripe rust reactions of Australasian wheats (1986)
    Springer
    Euphytica 35 (1986), S. 593-602 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Puccinia striiformis ; stripe rust ; yellow rust ; Australia ; New Zealand ; numerical classification ; ordination ; minimum spanning tree
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Seedling and field reactions to four European races of stripe rust were determined for 254 wheat cultivars, mostly from Australia and New Zealand. Numerical analyses of the data employed a divisive classification procedure with termal reallocation to form 10 groups which were then further classified, ordinated and diagnosed by several procedures. The groups formed ranged from one comprising four wheats with low seedling reactions to all four rust strains and mean field rust of only 1.0%, to one comprising 105 wheats with high seedling reactions and mean field rust of 64.7%. Groups of cultivars with intermediate levels of rust resistance were classified both on relative level of overall rust and on differential reactions to rust strains. One group of 13 cultivars had moderately high seedling reactions but averaged only 1.5% rust in the field. Seedling response to gibberellic acid (GA) was also measured and diagnosed as an external attribute, along with grain type and region of origin. Principal co-ordinate analysis revealed that greater resistance to stripe rust was associated with the insensitivity to GA typical of semidwarf wheats and with an origin in northern Australia, where semidwarf wheats have been most used in the breeding program. In terms of numerical analysis of disease data in plant breeding programs, the study highlighted the advantages of using divisive classification with terminal reallocation of group members.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021868
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  • 6
    Electronic Resource
    Electronic Resource
    Inheritance of biotype E greenbug resistance in bread wheat CI 17882 and its relationship with wheat streak mosaic virus resistance (1986)
    Springer
    Euphytica 35 (1986), S. 615-620 
    Details
    ISSN: 1573-5060
    Keywords: Triticum speltoides ; Aegilops speltoides ; Triticum aestivum ; wheat ; Schizaphis graminum ; greenbug ; wheat streak mosaic virus ; insect biotypes ; host plant resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Genetic studies were conducted to determine the inheritance of biotype E greenbug resistance in CI 17882 (CI 15092/T. speltoides//Fletcher/3/4* Centurk), a wheat germplasm line previously released as resistant to wheat streak mosaic virus (WSMV). In addition, the association of greenbug and WSMV resistance in CI 17882 was examined. Results indicated that biotype E greenbug resistance in CI 17882 is conditioned by a single dominant gene that is not linked with the WSMV resistance gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021870
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  • 7
    Electronic Resource
    Electronic Resource
    Location of a gene for frost resistance on chromosome 5A of wheat (1989)
    Springer
    Euphytica 42 (1989), S. 41-44 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; frost resistance ; locus Fr1 ; recombinant lines ; chromosome 5A
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A gene for frost resistance on chromosome 5A of wheat was located using single chromosome recombinant lines from the cross between the substitution line Hobbit (Triticum spelta 5A) and Hobbit. In this sample of recombinant lines the locus for frost resistance, designated Fr1, is completely linked to the locus Vrn1 controlling vernalisation requirement. The results can be explained by a pleiotropic action of the Vrn1 locus or close genetic linkage between Vrn1 and Fr1. Further detailed study is necessary to resolve these alternative hypotheses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00042613
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  • 8
    Electronic Resource
    Electronic Resource
    The drought response of landraces of wheat from the northern Negev Desert in Israel (1989)
    Springer
    Euphytica 43 (1989), S. 87-96 
    Details
    ISSN: 1573-5060
    Keywords: Triticum durum ; durum wheat ; Triticum aestivum ; wheat germplasm ; collection ; yield components ; drought response ; canopy temperature ; osmotic adjustment ; phenology ; Israel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Diverse landraces of wheat, collected from the semi-arid (150 to 250 mm of total annual rainfall) Northern Negev desert in Israel were considered as a potential genetic resource of drought resistance for wheat breeding. These materials were therefore evaluated for their reponses to drought stress in agronomical and physiological terms. Up to 68 landraces, comprising of Triticum durum, T. aestivum, and T. compactum were tested in two field drought environments, in one favourable field environment, under post-anthesis chemical plant desiccation which revealed the capacity for grain filling from mobilized stem reserves, under a controlled drought stress in a rainout shelter and in the growth chamber under polyethylene glycol (PEG)-induced water stress. Biomass, grain yield and its components, harvest index, plant phenology, canopy temperatures, kernel weight loss by chemical plant desiccation, growth reduction by PEG-induced drought stress and osmotic adjustment were evaluated in the various experiments. Landraces varied significantly for all parameters of drought response as measured in the different experiments, which was in accordance to their documented large morphological diversity. Variation in grain yield among landraces under an increasing drought stress after tillering was largely affected by spike number per unit area. Kernel weight contributed very little to yield variation among landraces under stress, probably because these tall (average of 131 cm) landraces generally excelled in their capacity to support kernel growth by stem reserve mobilization under stress. Yield under stress was reduced with a longer growth duration of landraces only under early planting but not under late planting. Landraces were generally late flowering but they were still considered well adapted phenologically to their native region where they were always planted late. Landraces differed significantly in canopy temperature under drought stress. Canopy temperature under stress in the rainout shelter was negatively correlated across landraces with grain yield (r=0.67**) and biomass (r=0.64**) under stress. Canopy temperature under stress in the rainout shelter was also positively correlated across landraces (r=0.50**) with canopy temperature in one stress field environment. Osmotic adjustment in PEG-stressed plants was negatively correlated (r=−0.60**) with percent growth reduction by PEG-induced water stress. It was not correlated with yield under stress in any of the experiments. In terms of yield under stress, canopy temperatures and stem reserve utilization for grain filling, the most drought resistant landrace was the ‘Juljuli’ population of T.durum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037900
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  • 9
    Electronic Resource
    Electronic Resource
    Drought resistance of wheat plants inoculated with vesicular-arbuscular mycorrhizae (1985)
    Springer
    Plant and soil 86 (1985), S. 369-378 
    Details
    ISSN: 1573-5036
    Keywords: Dry-matter accumulation ; Glomus deserticola ; Glomus fasciculatum ; Mycorrhizae ; Root growth ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Drought resistance of wheat (Triticum aestivum L.) as influenced by two vesiculararbuscular mycorrhizal (VAM) fungi,Glomus fasciculatum 10 andGlomus deserticola 19, was evaluated. Soil columns 0.15 m diam. by 1.20 m length were used to reduce the influence of limited rooting space. With initial soil water at 0.5 MPa (0.145 kg kg−1), plants were subjected to low-level water stress throughout the experiment and severe water stress for 24 h at one (55 days after transplanting, Feekes scale 10.1) two (55 and 63 days, Feekes 10.1 and 10.2), or three (55, 63, and 70 days, Feekes 10.1, 10.1, and 10.2) periods. After each stress period, one set of plants was watered and grown to maturity without subsequent water stress. A second set of plants was harvested 1 week after stress.G. fasciculatum-inoculated plants harvested 7 days after stress at 55 days had greater leaf area and leaf, total plant, and root weight than non-VAM plants.G. deserticola-inoculated plants had greater leaf area and leaf weight than non-VAM plants. After stress at 55 and 63 days, leaf area, and leaf and total dry weight were again greater for VAM than for non-VAM plants. However, after stress at 55, 63, and 70 days, differences in aboveground biomass between VAM and non-VAM plants were not significant at P=0.05. Aboveground biomass was not affected by VAM species in plants stressed at 55 or 55 and 63 days, butG. fasciculatum-inoculated plants produced more tillers atter stress at 55 days. When grown to maturity, VAM plants which had undergone three stress periods had twice the biomass and grain yield as non-VAM plants subjected to the same stress. The three stress periods reduced number of heads and kernel numbers of weight of non-VAM plants compared to VAM plants.G. fasciculatum-inoculated plants consistently had increased root weight and rooting depth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02145457
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  • 10
    Electronic Resource
    Electronic Resource
    Identification of rye genotypes resistant to biotypes B, C, E, and F of the greenbug (1988)
    Springer
    Euphytica 37 (1988), S. 65-68 
    Details
    ISSN: 1573-5060
    Keywords: Secale cereale ; rye ; Triticum aestivum ; bread wheat ; Triticosecale ; Schizaphis graminum ; greenbug ; insect biotypes ; resistant germplasm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The greenbug, Schizaphis graminum (Rondani), is a serious pest of wheat, Triticum aestivum L., and other small grains. Cultivar resistance would be an efficient means of control. Unfortunately, a paucity of greenbug resistance in wheat germplasm and occurrence of new virulent biotypes of the greenbug have made development of resistant cultivars difficult. Therefore, resistance genes are sought in species related to and crossable with wheat. Our objective was to evaluate, in greenhouse seedling tests, 11 rye (Secale cereale L.) accessions for their reaction to greenbug biotypes B, C, E, and F. Two ryes, CI 187 and PI 240675, segregated for resistance to all four biotypes. It may be possible to transfer this resistance to wheat. These resistance sources may also be of importance in rye and triticale (X Triticosecale Wittmack) breeding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037225
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