The effects ofMycosphaerella graminicolainfection on wheat protein content and quality

2007 ◽  
Vol 35 (1) ◽  
pp. 81-88 ◽  
Author(s):  
M. Arabi ◽  
M. Jawhar ◽  
N. Mir Ali
Keyword(s):  
Protein Content ◽  
Wheat Protein

VARIATION IN BREADMAKING QUALITY OF SYSTEMATIC CONTROLS IN A WHEAT BREEDING NURSERY AND ITS RELATIONSHIP TO PLANT BREEDING PROCEDURES

1969 ◽  
Vol 49 (1) ◽  
pp. 21-28 ◽  
Author(s):  
K. G. Briggs ◽  
W. Bushuk ◽  
L. H. Shebeski
Keyword(s):  
Protein Content ◽  
Wheat Breeding ◽  
Quality Data ◽  
Wheat Protein ◽  
Quality Test ◽  
Breadmaking Quality ◽  
Test Characteristics ◽  
Moisture Basis ◽  
Flour Yield ◽  
The University

In a spring wheat breeding nursery at the University of Manitoba in 1967, the wheat protein content of systematic control plots of Triticum aestivum cv. Manitou varied from 10.3% to 16.5% (at 13.5% moisture basis). The correlation between grain yield and protein content of these plots was 0.88 and significant at the 99% confidence level. Correlations calculated for control plots at specified distances apart indicate that for all breadmaking quality test characteristics except bushel weight and flour yield, contiguous plots are significantly more similar in quality than those further apart. The correlation between control plots 2.7 m (9 ft) apart is 0.84 (P = 0.05) for wheat protein percent and of similar order for those quality characteristics which are dependent on total protein. Areas of high and low quality "potential" can be identified in a wheat nursery by using quality data from controls at frequent intervals, and this information should be used by the breeder when assessing the single quality test of a breeding line from a given area of the nursery.

SUMMERFALLOW WHEAT PROTEIN VARIATIONS IN SASKATCHEWAN

1964 ◽  
Vol 44 (2) ◽  
pp. 196-202 ◽  
Author(s):  
R. B. McKercher
Keyword(s):  
Protein Content ◽  
Soil Profile ◽  
Field Studies ◽  
Measured Data ◽  
Wheat Protein

Field studies were conducted during the years 1957 to 1962 inclusive to measure and delineate factors which cause the protein variations encountered in summerfallow wheat crops in Saskatchewan. Differences in protein content of wheat of over 7% were found between different sampling topographical positions within any one field. Fertilization with nitrogen and phosphate at recommended field rates did not alter the protein content of the grain even though increases in yield of up to 100% were measured. Data are presented which indicate that much of the variation in protein values of wheat within fields can be attributed to changes in the type of soil profile and the associated microclimate.

EFFECTS OF FOLIAR- AND SOIL-APPLIED NITROGEN AND SOIL NITRATE-NITROGEN LEVEL ON THE PROTEIN CONTENT OF NEEPAWA WHEAT

1972 ◽  
Vol 52 (3) ◽  
pp. 301-309 ◽  
Author(s):  
A. C. ALKIER ◽  
G. J. RACZ ◽  
R. J. SOPER
Keyword(s):  
Ammonium Nitrate ◽  
Protein Content ◽  
Nitrate Nitrogen ◽  
Field Studies ◽  
Nitrogen Supply ◽  
Soil Nitrate ◽  
Fallow Land ◽  
Wheat Protein ◽  
Large Yield ◽  
Ha Protein

Protein content and yield of wheat usually increased with increases in the amount of nitrate nitrogen present in the soil. Large yield increases were obtained when 34 or 67 kg N/ha was applied broadcast to nonfallow land at time of seeding, but protein content decreased or increased only slightly. Protein content increased substantially when 101–202 kg N/ha was applied to nonfallow land, whereas yields were not increased above that obtained with 67 kg N/ha. Protein content of wheat grown on fallow land increased with increasing amounts of added nitrogen up to about 134 kg N/ha; yields did not increase greatly with added nitrogen. Wheat protein content was found to be related to nitrogen supply. An R2 value of 0.78 was obtained when wheat protein content was related to soil nitrate nitrogen measured to a depth of 61 cm and nitrogen applied broadcast at time of seeding. Soil- and foliar-applied postemergent nitrogen applications increased the protein content more than equivalent rates of nitrogen-applied broadcast at time of seeding in field studies conducted during 1971, but not in 1970. A greenhouse experiment showed that usually less than 1% of the nitrogen from ammonium nitrate, urea, or ammonium sulfate was absorbed into the grain when applied to the foliar surfaces of wheat; usually greater than 30% of the nitrogen from these fertilizers was absorbed when soil applied.

scholarly journals Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat

1972 ◽  
Vol 44 (1) ◽  
pp. 56-62
Author(s):  
Paavo Elonen ◽  
Liisa Aho ◽  
Pekka Koivistoinen
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Protein Content ◽  
Acid Composition ◽  
Wheat Flour ◽  
Spring Wheat ◽  
Nitrogen Fertilization ◽  
Field Experiments ◽  
Sprinkler Irrigation ◽  
Wheat Protein

Sprinkler irrigation on clay soils in southern Finland decreased the protein content of spring wheat flour in five field experiments in the years 1967—70, by 16 ± 4 per cent on an average. The amino acid composition, however, was improved, because the proportion of lysine was increased by 6 ± 4 %. Accordingly, the content of lysine in flour was decreased by irrigation only by 10 ± 5 %. An increase of fertilizer nitrogen from 68 to 144 kg/ha increased the protein content of wheat flour by 19 ± 5 %, but the proportion of lysine in the amino acid composition decreased by 9 ± 4 %. Therefore, the lysine content in flour was increased by nitrogen fertilization only by 8 ± 5 %. It seemed as if urea and ammonium nitrate limestone would have had about the same effect on the quantity and quality of wheat protein. As a consequence of the reversed influences of irrigation and nitrogen fertilization on the wheat protein it was possible, by means of irrigation and an additional nitrogen fertilization, to produce 65 per cent higher grain yields without any noteworthy changes in the contents of protein or amino acids.

scholarly journals Effects of Wheat Protein Content on Endosperm Composites and Malt Quality

2008 ◽  
Vol 114 (4) ◽  
pp. 289-293 ◽  
Author(s):  
Yuhong Jin ◽  
Kaili Zhang ◽  
Jinhua Du
Keyword(s):  
Protein Content ◽  
Wheat Protein ◽  
Malt Quality

scholarly journals Increased wheat protein content via introgression of a HMW glutenin selectively reshapes the grain proteome

2021 ◽  
pp. 100097
Author(s):  
Hui Cao ◽  
Owen Duncan ◽  
Shahidul Islam ◽  
Jingjuan Zhang ◽  
Wujun Ma ◽  
...  
Keyword(s):  
Protein Content ◽  
Wheat Protein ◽  
Hmw Glutenin ◽  
Grain Proteome

scholarly journals Effectiveness of Genomic Selection by Response to Selection for Winter Wheat Variety Improvement

2019 ◽  
Author(s):  
Xiaowei Hu ◽  
Brett F. Carver ◽  
Carol Powers ◽  
Liuling Yan ◽  
Lan Zhu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Protein Content ◽  
Genomic Selection ◽  
Prediction Accuracy ◽  
Wheat Variety ◽  
Wheat Protein ◽  
Response To Selection ◽  
Training Population ◽  
Sedimentation Volume

AbstractThe genomic revolution opened up the possibility for predicting un-tested phenotypes in schemes commonly referred as genomic selection (GS). Considering the practicality of applying GS in the line development stage of a hard red winter (HRW) wheat variety development program (VDP), effectiveness of GS was evaluated by prediction accuracy, as well as by the response to selection across field seasons that demonstrated challenges for crop improvement under significant climate variability. Important breeding targets for HRW wheat improvement in the southern Great Plains of USA, including Grain Yield, Kernel Weight, Wheat Protein content, and Sodium Dodecyl Sulfate (SDS) Sedimentation Volume as a rapid test for predicting bread-making quality, were used to estimate GS’s effectiveness across harvest years from 2014 (drought) to 2016 (normal). In general, nonparametric algorithms RKHS and RF produced higher accuracies in both same-year/environment cross validations and cross-year/environment predictions, for the purpose of line selection in this bi-parental doubled haploid (DH) population. Further, the stability of GS performance was greatest for SDS Sedimentation Volume but least for Wheat Protein content. To ensure long-term genetic gain, our study on selection response suggested that across this sample of environmental variability, and though there are cases where phenotypic selection (PS) might be still preferential, training conducted under drought stress or in suboptimal conditions could still provide an encouraging prediction outcome, when selection decisions were made in normal conditions. However, it is not advisable to use training information collected from a normal field season to predict trait performance under drought conditions. Further, the superiority of response to selection was most evident if the training population can be optimized.Core IdeasPrediction performance for winter wheat grain yield and end-use quality traits.Prediction accuracy evaluated by cross validations significantly overestimated.Non-parametric algorithms outperform, when considering cross-year predictions.Strategically designing training population improves response to selection.Response to selection varied across growing seasons/environments.

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