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  • Articles  (31)
  • wheat  (31)
  • Springer  (31)
  • American Chemical Society
  • International Union of Crystallography (IUCr)
  • 1985-1989  (18)
  • 1980-1984  (8)
  • 1975-1979  (5)
  • 1970-1974
  • 1955-1959
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (31)
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  • Articles  (31)
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  • Springer  (31)
  • American Chemical Society
  • International Union of Crystallography (IUCr)
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  • 1
    Electronic Resource
    Electronic Resource
    An assessment of soil tests for phosphate for the prediction of cereal yields on a sandy soil in Western Australia (1988)
    Springer
    Nutrient cycling in agroecosystems 16 (1988), S. 137-155 
    Details
    ISSN: 1573-0867
    Keywords: Superphosphate ; rock phosphate ; wheat ; oats ; barley ; field experiment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Nine soil tests for phosphate were evaluated for predicting the yield and P content of wheat, barley and oats grown on a sandy soil in Western Australia: Olsen, modified Olsen 1 (soil:solution ratio 1:5), modified Olsen 2 (soil:solution ratio 1:50), Colwell, Bray 1, Bray 2, modified Bray 2T (shaking time 10 minutes), modified Bray 2C (pH 3.7) and lactate. The soil had been fertilized 5 years previously with 20 levels each of superphosphate (OSP, range 0 to 400 kg P ha−1) and Queensland rock phosphate (QRP, range 0 to 20 000 kg P ha−1). For each species and fertilizer taken separately, all the tests, except for lactate, gave a good prediction of yield. When data for OSP and QRP were pooled, Bray 2 and modified Bray 2T tests were unsatisfactory predictors of both yield and P content. A linear relationship (P 〈 0.05) between mean soil tests value (χ) and the standard deviation (σ χ ) of the test value was observed for each soil test. For QRP, the results for lactate were the most variable (i.e.σχ/χ was greatest) followed by modified Olsen 2 〉 Bray 1 〉 Bray 2 〉 Olsen 〉 modified Bray 2C 〉 modified Olsen 1 〉 modified Bray 2T 〉 Colwell. The order for OSP fertilized soil was Bray 1 〉 modified Bray 2T 〉 Bray 2 〉 Olsen 〉 Colwell 〉 modified Bray 2C 〉 modified Olsen 1 〉 lactate 〉 modified Olsen 2. For combined OSP and QRP data, the results of the Olsen 1 and Colwell extractions were the least variable. Errors in the prediction of yield (σ Y ) for all crops resulting from an error in soil test values (σχ) were calculated. For OSP-fertilized soil variability in values for the Bray-1 test provided the highest error (about 16%) in the prediction of the yield, followed by Bray 2 (12%) 〉 Bray 2T (10%) 〉 Olsen (8%) 〉 Colwell (7%) 〉 modified Bray 2C (6%) 〉 lactate (4%). Maximum error was at yields of about 65% of maximum yield. For soil fertilized with QRP, lactate provided the highest error (about 10%) in the prediction of yield, followed by the other tests (〈 6%). Maximum error was at yields of about 35% of maximum yield. The Colwell soil test gave the most accurate overall prediction of yield for both fertilizers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01049770
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  • 2
    Electronic Resource
    Electronic Resource
    Inexpensive biological tests for soil calcium deficiency and aluminum toxicity (1989)
    Springer
    Plant and soil 120 (1989), S. 273-282 
    Details
    ISSN: 1573-5036
    Keywords: aluminum toxicity ; biological tests ; calcium deficiency ; root growth ; sorghum ; subsurface soils ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Two relatively simple procedures based on 4-day seedling growth were developed for identifying soil calcium (Ca) deficiency and/or aluminum (Al) toxicity. Test A uses any large-seeded cultivar that a farmer might consider planting and reveals whether the cultivar will suffer from Ca deficiency by comparing root growth in untreated soil to that in soil receiving a minimal Ca addition (0.1 meq.100mL−1 soil), sufficient to eliminate possible deficiency. Al toxicity is detected by comparing root growth in a sample receiving the minimal Ca treatment with growth in the soil treated with enough lime to neutralize exchangeable Al. In test B, potential Al toxicity problems are detected for any widely-grown standard crop by comparing its growth with that of a different, Al-tolerant variety on soil samples receiving 0.1 meq.100mL−1 Ca. With this test Ca deficiency in the untreated sample is detected by an increase in root growth of the Al-tolerant variety resulting from a small addition of Ca. The tests agreed with diagnoses made by standard chemical methods in about 84% of the cases examined. The proposed tests can be carried out using simple, easily-available materials without the necessity of sending soils to an analytical laboratory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02377077
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of time of application on the effectiveness of zinc sulphate and zinc oxide as sources of zinc for wheat (1988)
    Springer
    Nutrient cycling in agroecosystems 17 (1988), S. 147-151 
    Details
    ISSN: 1573-0867
    Keywords: time of zinc application ; wheat ; zinc sulphate ; zinc oxide ; zinc uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Field experiments with wheat were conducted for two years on flood plain alluvial soils to study the effectiveness of soil application of zinc sulphate and zinc oxide at 0, 15, 45, 60, 75 and 90 days after sowing. Yield and zinc uptake of wheat increased significantly with the application of zinc. Delaying the application of both zinc sulphate and zinc oxide up to 45 days of sowing did not adversly affect the zinc nutrition of wheat. However, delaying the application for 75 or 90 days after sowing eliminated the response. Zinc sulphate, when applied within 60 days of sowing performed better than zinc oxide. In a laboratory study, zinc sulphate maintained a higher level of zinc in the soil solution than zinc oxide at least over a 3-week period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01050275
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  • 4
    Electronic Resource
    Electronic Resource
    Fertiliser effectiveness of acid extracted phosphorus from low grade phosphate rock (1988)
    Springer
    Nutrient cycling in agroecosystems 17 (1988), S. 165-176 
    Details
    ISSN: 1573-0867
    Keywords: Low-grade phosphate rock ; acid extracts ; P fertiliser ; available P ; wheat ; soil pH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Low grade phosphate rock (PR), containing high amounts of oxides of iron and aluminium is neither suitable for fertiliser production nor useful for direct application to annual crops. The fertiliser effectiveness of P extracted by H2SO4 from a low-grade phosphate rock, PR (Christmas Island C-grade PR) was evaluated for wheat (Triticum aestivum L.) on a calcareous loam (pH 8.4) and a non-calcareous loam (pH 6.9) in field and glasshouse experiments. Superphosphate was used to compare the performance of the acid extracts of PR. In the non-calcareous loam soil, crop establishment and yield were significantly reduced by the acid extracts of PR due to increased acidity. In the calcareous soil, however, the acid extracts of PR performed as well as superphosphate; similar or even higher crop yields were obtained with the former, especially when applied near the seed. The acid extracts of low-grade PR may, therefore, have a role in calcareous soils, where the extract can be applied directly or added in the irrigation waters to supply P to crops.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01050277
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  • 5
    Electronic Resource
    Electronic Resource
    Nitrogen mineralization in a green manure-amended soil as influenced by cropping history and subsequent crop (1989)
    Springer
    Plant and soil 120 (1989), S. 125-131 
    Details
    ISSN: 1573-5036
    Keywords: canola ; fallow ; N mineralization ; N immobilization ; organic matter ; rhizosphere ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A greenhouse experiment was conducted to determine the influence of cropping variables on nitrogen dynamics in a soil amended with green manure. Surface soil from various long-term spring wheat rotations was amended with15N-labelled legume green manure (Lathyrus tingitanus) and subsequently cropped (canola [Brassica napus] and spring wheat [Triticum aestivum]) or incubated without a crop for 56 days in a greenhouse. Nitrogen mineralization from both the indigenous soil N and from green manure was suppressed in cropped soil. Net N mineralization in the uncropped and cropped treatments averaged 73 and 43 mg kg−1, respectively. This difference was attributed, in part, to enhanced biological immobilization in the rhizosphere. Previous cropping practices also had significant effect on N mineralization, largely by their influence on indigenous organic matter quality. These observations suggest that short-term N mineralization is favored by fallowing soil after green manure application whereas N retention in organic matter is favored by immediate cropping.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370298
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  • 6
    Electronic Resource
    Electronic Resource
    Nutritive value of protein fractions extracted from soybean, rapeseed and wheat flours in the rat (1984)
    Springer
    Plant foods for human nutrition 34 (1984), S. 243-251 
    Details
    ISSN: 1573-9104
    Keywords: nutritive value ; protein fractions ; rapeseed ; soybean ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The nutritive value of various protein fractions was studied. Fractions 2S and 12S from rapeseed, 2S, 7S and 11S from soybean were obtained by dissolution in ammonium sulfate solutions. Albumin-globulin, gluten, glutenin and gliadin fractions from wheat were obtained by dissolution in salted water (albumin-globulin), acetic acid (glutenin) and alcohol (gliadin). Liveweight gains, protein efficiency ratio (PER) and apparent digestibility coefficient (ADC) were used as measures of the nutritive value. The protein fractions had a lower nutritive value than the unfractionated proteins except for the albumin-globulin fraction of wheat which had a nutritive value higher than that of the unfractionated wheat protein. PER obtained with the rapeseed 2S and 12S fractions were 2.49 and 2.21, respectively, as compared to 2.64 for unfractionated rapeseed. With soybean fractions, PER were 0.92 for 2S, — 0.007 for 7S and 1.47 for 11S, as compared to 2.19 for the original protein. The wheat albumin-globulin fraction gave a PER of 2.78, as compared to 1.45 for the unfractionated wheat protein. Gluten, glutenin and gliadin fractions had a lower PER than that of unfractionated wheat protein. ADC of all fractions were higher than those of the original proteins. The difference in liveweight gains and PER observed between protein fractions can be partially explained on the basis of the essential amino acid content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01126553
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  • 7
    Electronic Resource
    Electronic Resource
    Inheritance of slow rusting to stem rust in wheat (1978)
    Springer
    Euphytica 27 (1978), S. 95-107 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Puccinia graminis ; wheat stem rust ; black rust resistance ; inheritance of slow rusting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The inheritance of the slow rusting character was studied on F5 progenies from seven spring wheat cultivars (Triticum aestivum) crossed in all possible combinations without reciprocals. The cultivars and their progenies were evaluated for slow rusting in 1974 and 1975 in epidemics of Puccinia graminis f. sp. tritici, races 15 and 151, and traces of other races. Slow rusting varied significantly among the parents and among the F5 progeny of each cross. Transgressive segregation occurred in each cross, i.e. some progeny rusted more slowly than the parents and some faster. In crosses with both Idaed 59 and Kenya 58 the progeny distributions were skewed towards slow rust development but the distributions in the other crosses were normal. The genetic control of slow rusting was predominantly additive, and narrow sense heritability was approximately 80 percent. The number of segregating genes having an effect on slow rusting was estimated to be 2 to 12 pairs depending on the cross. Correlation between slow rusting and maturity was usually negative but in most crosses the relationship was small.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039123
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  • 8
    Electronic Resource
    Electronic Resource
    Genetics of resistance in the wheat cultivar chhoti lerma against stem rust race 122 (1978)
    Springer
    Euphytica 27 (1978), S. 461-464 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Puccinia graminis ; stem rust ; resistance ; inheritance ; monsomic analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Genetics of rust resistance against stem rust race 122 in ‘Chhoti Lerma’ was studied both by conventional and aneuploid analysis. Observations on F1, F2 and F2 backcross progenies revealed the operation of two recessive genes, controlling resistance in ‘Chhoti Lerma’. Monosomic analysis confirmed the operation of two recessive genes conferring resistance to race 122 located on chromosomes 1D and 7D. A minor gene or modifier was also located on chromosome 1B. This was concluded from the fact that F2 of mono's x ‘Chhoti Lerma’ exhibited skewness in favour of resistant plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00043172
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  • 9
    Electronic Resource
    Electronic Resource
    Honeycomb selection for yield in early generations of spring wheat (1987)
    Springer
    Euphytica 36 (1987), S. 831-839 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; honeycomb selection ; breeding methodology ; selection intensity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effectiveness of the honeycomb selection method for yield in spring wheat (Triticum aestivum L.) was evaluated using progenies from two wheat crosses, Glenlea x NB131 and Glenlea x Era. Honeycomb selection was carried out in the F2 and F3 generations, grown at the University of Manitoba in the summers of 1980 and 1981, respectively. In both generations, divergent selection was made for both high and low yield. Plants selected in the F3 generation were entered in an F4 yield test in the summer of 1982. Results of the experiment showed that honeycomb selection for yield in the F2 and F3 generations was effective in identifying parents of high- and low-yielding lines. F3 plants from highyielding F2 selections gave higher yields than those from low-yielding F2 selections by 11.5% and 13.0% for Glenlea x NB131 and Glenlea x Era crosses, respectively. The F4 yield test showed that high yielding selections from both crosses significantly outyielded by 8.9% low yielding selections and by 14.4% the unselected composite lines. It is concluded that the honeycomb selection method can be used for early generation selection in spring wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00051867
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  • 10
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00036882
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