EFFECTS OF GENOTYPE-ENVIRONMENT INTERACTION ON BREAD WHEAT QUALITY IN WESTERN CANADA

1977 ◽  
Vol 57 (1) ◽  
pp. 185-191 ◽  
Author(s):  
R. J. BAKER ◽  
F. G. KOSMOLAK
Keyword(s):  
Triticum Aestivum L ◽  
Western Canada ◽  
Loaf Volume ◽  
Environment Interaction ◽  
Hard Red Spring Wheat ◽  
Flour Protein ◽  
Genotype Environment Interaction ◽  
Protein Flour ◽  
Flour Yield ◽  
Composite Samples

Means, variances and correlations were used in the assessment of the importance of environment and of genotype–environment interaction in determining eight traits which relate to milling and baking quality in hard red spring wheat (Triticum aestivum L.). The study included two composite samples, representing different geographic areas within Western Canada, of 20–30 lines in each of four trials. Differences between environments were found in all traits. It was concluded that genotype–environment interaction was most important in determining mixograph development time, falling number and remix loaf volume, less important in determining farinograph absorption, and least important in determining flour protein, flour yield, grinding time and sedimentation value.

GENOTYPE-ENVIRONMENT INTERACTIONS IN YIELD OF WHEAT

1969 ◽  
Vol 49 (6) ◽  
pp. 743-751 ◽  
Author(s):  
R. J. Baker
Keyword(s):  
Detailed Analysis ◽  
Spring Wheat ◽  
Variance Components ◽  
Wheat Yield ◽  
Yield Stability ◽  
Western Canada ◽  
Environment Interaction ◽  
Hard Red Spring Wheat ◽  
Genotype Environment Interaction ◽  
Different Types

A detailed analysis of genotype-environment interactions was carried out among yields of six cultivars of hard red spring wheat grown at each of nine locations in five different years. Subdividing the sum of squares for genotype-environment interactions into components due to each cultivar indicated that the Finlay-Wilkinson method of measuring yield stability is of little value for wheat yield in western Canada. Conventional estimates of variance components due to the different types of genotype-environment interaction indicated that all except the genotype-year interaction were significant and important.

AAC Vortex hard red winter wheat

2021 ◽  
Author(s):  
Robert J. Graf ◽  
Brian L Beres ◽  
André Laroche ◽  
Reem Aboukhaddour ◽  
Jamie Larsen ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Protein Concentration ◽  
Triticum Aestivum L ◽  
Loaf Volume ◽  
Head Blight ◽  
Lodging Resistance ◽  
Hard Red Winter Wheat ◽  
Flour Yield ◽  
Moderately Resistant ◽  
Red Winter Wheat

AAC Vortex is a hard red winter wheat (Triticum aestivum L.) cultivar well-adapted to all areas of western Canada and classified for grades of Canada Western Red Winter (CWRW) wheat. It was developed using doubled-haploid methodology. AAC Vortex was evaluated for registration relative to CDC Buteo, Emerson, Moats, and AAC Elevate across Alberta, Saskatchewan and Manitoba. Based on 44 replicated trials over 4 years (2016/17-2019/20), AAC Vortex had significantly higher grain yield than CDC Buteo and Emerson, and higher grain protein concentration than all of the checks except Emerson. AAC Vortex expressed winter survival and lodging resistance equal to the best checks, medium maturity and height, and acceptable test weight. AAC Vortex was resistant to stem, leaf and stripe rust, moderately resistant to Fusarium head blight, and susceptible to common bunt. AAC Vortex produced flour of higher protein concentration than all of the checks except Emerson, had higher clean wheat flour yield and loaf volume than all of the checks, and was similar in gluten strength to Emerson.

GENOTYPE-ENVIRONMENT INTERACTION OF YIELD IN CEREAL CROPS IN NORTHWESTERN CANADA

1981 ◽  
Vol 61 (2) ◽  
pp. 255-263 ◽  
Author(s):  
R. M. De PAUW ◽  
D. G. FARIS ◽  
C. J. WILLIAMS
Keyword(s):  
Triticum Aestivum L ◽  
Regression Coefficients ◽  
Cereal Crops ◽  
Environment Interaction ◽  
Ge Interaction ◽  
Hordeum Vulgare L ◽  
Genotype Environment Interaction ◽  
Early Maturing ◽  
Frost Free Period ◽  
Main Effects

Three cultivars of each crop, wheat (Triticum aestivum L.), oats (Avena sativa L.), and barley (Hordeum vulgare L.), were grown for 4 yr at five locations north of the 55th parallel in northwestern Canada. There were highly significant differences among all main effects and interactions. Galt barley produced the highest seed yield followed by Centennial barley, Random oats and Harmon oats. Victory oats, Olli barley, Neepawa wheat and Pitic 62 wheat yielded similarly to each other while Thatcher wheat was significantly lower yielding. Mean environment yields ranged from 2080 to 5610 kg/ha. The genotype-environment (GE) interaction of species and cultivars was sufficiently complicated that it could not be characterized by one or two statistics (e.g., stability variances or regression coefficients). However, variability in frost-free period among years and locations contributed to the GE interaction because, for example, some cultivars yielded well (e.g., Pitic 62) only in those year-location environments with a relatively long frost-free period while other early maturing cultivars (e.g., Olli) performed well even in a short frost-free period environment.

AAC Elie hard red spring wheat

2016 ◽  
Vol 96 (5) ◽  
pp. 919-927
Author(s):  
R.D. Cuthbert ◽  
R.M. DePauw ◽  
R.E. Knox ◽  
A.K. Singh ◽  
T.N. McCaig ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Spring Wheat ◽  
Yellow Rust ◽  
Triticum Aestivum L ◽  
Loose Smut ◽  
Common Bunt ◽  
Head Blight ◽  
Hard Red Spring Wheat ◽  
Intermediate Resistance ◽  
Flour Yield

AAC Elie hard red spring wheat (Triticum aestivum L.) has grain yield and time to maturity within the range of the checks. AAC Elie has an awned spike, a low lodging score indicative of strong straw, and a short plant stature typical of a semidwarf. These traits were comparable to the check Carberry. AAC Elie expressed resistance to prevalent races of leaf and stem rust, and intermediate resistance to fusarium head blight, yellow rust, common bunt, and loose smut. Compared with the five Canada Western Red Spring checks, AAC Elie has improved flour yield, and lower flower ash. AAC Elie is eligible for grades of Canada Western Red Spring.

EVALUATION OF SCREENING TESTS FOR QUALITY OF BREAD WHEAT

1971 ◽  
Vol 51 (6) ◽  
pp. 449-455 ◽  
Author(s):  
R. J. BAKER ◽  
A. B. CAMPBELL
Keyword(s):  
Triticum Aestivum ◽  
Nitrogen Content ◽  
Development Time ◽  
Triticum Aestivum L ◽  
Screening Tests ◽  
Loaf Volume ◽  
Breeding Programs ◽  
Flour Yield ◽  
Sedimentation Value

Eight tests designed to screen early generations of wheat, Triticum aestivum L. em Thell., for breadmaking quality were evaluated. Sedimentation value, mixograph development time, centrifuge absorption and nitrogen content (in that order) were the most repeatable of the eight tests. Flour yield and starch damage were least repeatable. The heritability of mixograph development time was low because of a significant cultivar by year interaction. Nitrogen content, sedimentation value and centrifuge absorption were shown to contain all the information about loaf volume and farinograph absorption that was available in the set of eight tests. It was therefore concluded that nitrogen content, sedimentation value and centrifuge absorption are the most useful of the eight tests for purposes of plant breeding programs.

scholarly journals AAC Castle red spring wheat

2021 ◽  
pp. 1-7
Author(s):  
H.S. Randhawa ◽  
P.D. Brown ◽  
J. Mitchell Fetch ◽  
T. Fetch ◽  
B. McCallum ◽  
...  
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Protein Concentration ◽  
Triticum Aestivum L ◽  
Loose Smut ◽  
Lodging Resistance ◽  
Hard Red Spring Wheat ◽  
Wheat Market ◽  
Weight Protein ◽  
Flour Yield

AAC Castle, an awned hard red spring wheat (Triticum aestivum L.), cultivar, combines high grain yield and good agronomic characteristics with excellent resistance to leaf, stem, stripe rust, common bunt and loose smut. It also expressed tolerance to the orange wheat blossom midge. Based on 39 station years of data in the registration trials from 2014 to 2016, the grain yield of AAC Castle was about 17% higher than 5700PR but similar to the other checks. AAC Castle was significantly shorter than AAC Foray and CDC Terrain, but had similar lodging resistance and maturity. AAC Castle had higher test weight, protein concentration, falling number and flour yield than AAC Foray and CDC Terrain. AAC Castle is eligible for grade of the Canada Prairie Spring Red wheat market class.

GENOTYPE-ENVIRONMENT INTERACTION VARIANCES IN YIELD TRIALS OF FALL RYE

1970 ◽  
Vol 50 (1) ◽  
pp. 77-80 ◽  
Author(s):  
P. J. KALTSIKES
Keyword(s):  
Genotype By Environment Interaction ◽  
Western Canada ◽  
Environment Interaction ◽  
First Order ◽  
Genotype By Environment ◽  
Genotype Environment Interaction ◽  
Yield Difference ◽  
The Mean ◽  
Yield Trials ◽  
Interaction Variance

Estimates of genotype by environment interaction variances were obtained from the western Canada Co-operative fall rye tests grown in 1963–1967. All first-order interactions and the second-order interactions were significantly greater than zero at the 0.05 level of probability. Although the estimate of cultivar by year interaction variance was relatively small, it accounted for 40% of the variance of a cultivar mean when only three years of testing were considered. However, testing in 20 locations for three years with four replicates could detect yield differences of approximately 10% of the mean of the highest yielding cultivar. If further reduction of the yield difference detectable is desired, more locations should be included in the test.

REACTION OF FLOUR OF SOME VARIETIES OF HARD RED SPRING WHEAT TO BLEACHING AGENTS

1932 ◽  
Vol 6 (3) ◽  
pp. 255-264
Author(s):  
R. K. Larmour ◽  
W. F. Geddes ◽  
J. G. Malloch
Keyword(s):  
Spring Wheat ◽  
Western Canada ◽  
Hard Red Spring Wheat ◽  
Relative Susceptibility ◽  
Significant Difference ◽  
Composite Samples

Composite samples of "aged" flour of 17 varieties of spring wheat grown in western Canada, were bleached by three methods, namely, [Formula: see text] oz. Betachlor per bbl., 1 lb. Novadel per 40 bbl., and [Formula: see text] oz. Betachlor per bbl. followed by 1 lb. Novadel per 40 bbl. Gasoline color values were determined for the bleached and unbleached samples and it was found that the more highly pigmented flours in the series could be reduced to approximately the same color as the less pigmented samples, indicating that the former respond to a greater extent to bleaching than the latter. The color of the bread was improved in all cases, the greatest improvement occurring with Betachlor plus Novadel and the least with Betachlor alone. Loaf volumes obtained with six different baking formulas showed no significant difference between bleached and unbleached samples. None of the dosages showed any evidence of overbleaching. It was thought that information might be obtained on the relative susceptibility of the varieties to damage by bleaching agents, but it was found that normal dosages are not sufficient for differentiation on this basis. It is suggested that this might be accomplished by using heavier dosages of Betachlor.

scholarly journals AAC W1876 hard red spring wheat

2018 ◽  
Vol 98 (3) ◽  
pp. 799-808
Author(s):  
R.D. Cuthbert ◽  
R.M. DePauw ◽  
R.E. Knox ◽  
A.K. Singh ◽  
T.N. McCaig ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Yellow Rust ◽  
Triticum Aestivum L ◽  
Loose Smut ◽  
Common Bunt ◽  
Head Blight ◽  
Hard Red Spring Wheat ◽  
Intermediate Resistance ◽  
Flour Yield ◽  
Moderate Resistance

AAC W1876 hard red spring wheat (Triticum aestivum L.) has grain yield and time to maturity within the range of the check cultivars: Katepwa, Laura, Lillian, Carberry, and CDC Kernen. AAC W1876 has an awned spike, a low lodging score indicative of strong straw, and a short plant stature typical of a semidwarf wheat. AAC W1876 expressed resistance to prevalent races of leaf rust, moderate resistance to stem rust, and intermediate resistance to Fusarium head blight, yellow rust, common bunt, and loose smut. Compared with the Canada Western Red Spring check cultivars, AAC W1876 had improved flour yield and lower flour ash. AAC W1876 is eligible for grades of Canada Western Red Spring.

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