THE GENETIC BASIS FOR THE DIFFERENCE IN SEED WEIGHT BETWEEN THATCHER AND SELKIRK WHEATS

1972 ◽  
Vol 14 (3) ◽  
pp. 667-673 ◽  
Author(s):  
B. S. Talukdar
Keyword(s):  
Spring Wheat ◽  
Seed Weight ◽  
Genetic Basis ◽  
Wheat Cultivars ◽  
Major Genes ◽  
Hard Red Spring Wheat ◽  
Line Method ◽  
Backcross Line ◽  
The Difference ◽  
Inbred Backcross

The inbred backcross line method was used to study the genetics of the difference in seed weight between two hard red spring wheat cultivars, Thatcher and Selkirk. Three major genes, one with large and two with relatively small but equal effects, were found to control the difference. The distribution of the alleles was unidirectional with Thatcher carrying the alleles for light and Selkirk carrying the alleles for heavy seed. Linkage, dominance, and epistasis caused practically no bias in the analysis. The result indicates that breeding for seed weight should be simple.

Free asparagine concentrations in Canadian hard red spring wheat cultivars

2019 ◽  
Vol 99 (3) ◽  
pp. 338-347 ◽  
Author(s):  
Lovemore N. Malunga ◽  
Nancy P. Ames ◽  
M. Tugrul Masatcioglu ◽  
Ali Salimi Khorshidi ◽  
Sijo Joseph Thandapilly ◽  
...  
Keyword(s):  
Amino Acid ◽  
Spring Wheat ◽  
Quality Parameters ◽  
Wheat Cultivars ◽  
Dough Strength ◽  
Hard Red Spring Wheat ◽  
White Flour ◽  
The World ◽  
Baked Foods ◽  
Rate Limiting

The amino acid asparagine is considered the rate limiting precursor in the formation of acrylamide in cereal-based baked foods. However, there are no data on the quantity of this precursor in Canadian wheat. Wholemeal and white flour samples obtained from 30 Canadian hard red spring wheat grown in the Prairie provinces were analysed for asparagine content by liquid chromatography. The asparagine content varied from 302 to 965 and 116 to 336 μg g−1 for wholemeal and white flour, respectively. Therefore, wheat grown in Canada has similar asparagine levels to wheat grown in other parts of the world. Analysis of variance suggested that asparagine content is significantly affected by genotype (p < 0.001), suggesting that breeding strategies could be investigated to produce cultivars with lower levels of this amino acid. Few significant correlations were observed between wheat and flour quality parameters and asparagine content, although there was a tendency towards weaker dough strength indices with increasing asparagine content.

COMPARISON OF CANADIAN AND AMERICAN HARD RED SPRING WHEAT CULTIVARS

1985 ◽  
Vol 65 (4) ◽  
pp. 831-840 ◽  
Author(s):  
J. G. WATERER ◽  
L. E. EVANS
Keyword(s):  
Spring Wheat ◽  
Protein Quality ◽  
Wheat Cultivars ◽  
Hard Red Spring Wheat ◽  
Milling Quality ◽  
Grain Yields ◽  
Baking Quality ◽  
Low Protein ◽  
Milling Characteristics ◽  
Flour Yield

Comparisons were made between the yields and milling and baking properties of the Canadian hard red spring wheat cultivars Manitou, Glenlea, Neepawa, Benito and Columbus and the American cultivars Chris, Waldron, Butte, Coteau and Alex grown at six locations across Manitoba during 1982 and 1983. Glenlea consistently produced the highest grain yields but due to its low protein content performed poorly in the baking trials. Butte and Alex had good grain yields and excellent milling characteristics. Although they had low protein percentages their baking quality was excellent, indicating exceptional protein quality. Chris and Waldron had superior milling and baking characteristics but unacceptably low yields. Coteau appeared to be the best American cultivar tested, combining above-average yields with excellent milling and baking characteristics. Manitou and Neepawa had relatively low yields and only average milling and baking quality. Columbus appeared to be the best Canadian cultivar with acceptable grain yield, superior flour yield with excellent dough production and baking characteristics.Key words: Wheat quality, grain yields, milling quality, baking quality

Effect of salts from the lyotropic series on the handling properties of dough prepared from two hard red spring wheat cultivars of differing quality

2020 ◽  
Vol 320 ◽  
pp. 126615
Author(s):  
Nicole A. Avramenko ◽  
Erin J. Hopkins ◽  
Pierre Hucl ◽  
Martin G. Scanlon ◽  
Michael T. Nickerson
Keyword(s):  
Spring Wheat ◽  
Wheat Cultivars ◽  
Hard Red Spring Wheat ◽  
Lyotropic Series

Quality Trait Variation in Major Hard Red Spring Wheat Cultivars Released in North Dakota Since 1968

2008 ◽  
Vol 85 (4) ◽  
pp. 507-514 ◽  
Author(s):  
J. L. Underdahl ◽  
M. Mergoum ◽  
B. Schatz ◽  
J. K. Ransom
Keyword(s):  
North Dakota ◽  
Spring Wheat ◽  
Quality Trait ◽  
Wheat Cultivars ◽  
Trait Variation ◽  
Hard Red Spring Wheat

scholarly journals Improved Tomato Fruit Color within an Inbred Backcross Line Derived from Lycopersicon esculentum and L. hirsutum Involves the Interaction of Loci

2004 ◽  
Vol 129 (2) ◽  
pp. 250-257 ◽  
Author(s):  
Eileen Kabelka ◽  
Wencai Yang ◽  
David M. Francis
Keyword(s):  
Genetic Basis ◽  
Tomato Fruit ◽  
Field Trials ◽  
Lycopersicon Hirsutum ◽  
Chromosome 4 ◽  
Chromosome 11 ◽  
Breeding Programs ◽  
Epistatic Interactions ◽  
Backcross Line ◽  
Inbred Backcross

An inbred backcross (IBC) population derived from Lycopersicon hirsutum LA407 and L. esculentum was evaluated in replicated field trials to assess its potential for the improvement of red-fruited tomatoes. Significant phenotypic variation among genotypes was detected for the hue (tint), L (darkness), and chroma (saturation) of color. Significant effects due to environment and genotype × environment interactions also were observed. One superior inbred backcross line from this population, IBL 2349, was used to develop an F2 population and to explore the genetic basis of color. Two independent L. esculentum quantitative trait loci (QTL) associated with improved color were identified based on linkage to markers mapping to chromosome 4 and chromosome 11. Epistatic interactions were identified between the two L. esculentum loci. Unexpected epistatic interactions also were identified between L. esculentum loci and an LA407 introgression on chromosome 7 present within IBL 2349. The two L. esculentum QTL and the epistatic interactions were confirmed in replicated trials with F3 and F4 families. The loci identified in this study and their epistatic interactions may provide additional tools for the improvement of red-fruited tomatoes in breeding programs.

Effect of Milling Procedure on the Measurement of Dietary Fiber by a Gravimetric Method

1995 ◽  
Vol 78 (1) ◽  
pp. 83-87
Author(s):  
W John Mullin ◽  
Mark S Wolynetz
Keyword(s):  
Dietary Fiber ◽  
Spring Wheat ◽  
Gravimetric Method ◽  
Soluble Fiber ◽  
White Potato ◽  
Total Dietary Fiber ◽  
Hard Red Spring Wheat ◽  
Effect Of Particle Size ◽  
The Difference

Abstract Samples of white potato, sweet potato, hard red spring wheat, soft white winter wheat, and soft wheat bran were ground in a Wiley mill or a Cyclotec mill. A significantly (p &lt; 0.0001) larger proportion of coarse material (&gt;75μ) resulted from the Wiley mill, and a significantly (p &lt; 0.0001) larger proportion of fine material (&lt;45μ) was produced by the Cyclotec mill. The effect of particle size on the determination of soluble, insoluble, and total dietary fiber was less well defined. In 4 of 5 commodities tested, samples from the Cyclotec mill showed a greater amount of soluble fiber, while the reverse was true for insoluble and total fiber. The difference in total dietary fiber, with respect to the mill used in sample preparation, varied from 0.24% on a total 9.10% for potatoes to 1.00% on a total of 14.05% for hard red spring wheat.

End-Use Quality of Six Hard Red Spring Wheat Cultivars at Different Irrigation Levels

Crop Science ◽  
2000 ◽  
Vol 40 (3) ◽  
pp. 631-635 ◽  
Author(s):  
Mary J. Guttieri ◽  
Rashid Ahmad ◽  
Jeffrey C. Stark ◽  
Edward Souza
Keyword(s):  
Spring Wheat ◽  
Wheat Cultivars ◽  
Hard Red Spring Wheat ◽  
End Use ◽  
Irrigation Levels

Susceptibility and resistance in Canadian spring wheat cultivars to common bunt (Tilletia tritici and T. laevis)

1993 ◽  
Vol 73 (4) ◽  
pp. 1217-1224 ◽  
Author(s):  
D. A. Gaudet ◽  
B. J. Puchalski ◽  
G. C. Kozub ◽  
G. B. Schaalje
Keyword(s):  
Triticum Aestivum ◽  
Stability Analysis ◽  
Spring Wheat ◽  
Environment Interaction ◽  
Wheat Cultivars ◽  
Common Bunt ◽  
Hard Red Spring Wheat ◽  
Tilletia Tritici ◽  
High Infection ◽  
Susceptibility And Resistance

Current western Canadian hard red spring wheat cultivars and their progenitors, inoculated with a composite of Tilletia tritici and T. laevis races, were grown at Lethbridge from 1989 to 1991 and the percentage infection was determined. This study also examined cultivar × environment interaction effects. Ancestral cultivars, such as Red Calcutta 33, Marquis, Thatcher, and their descendants, Canthatch, Park, Neepawa, Manitou, and Cadet, exhibited intermediate levels of bunt resistance. Cultivars including the cultivar Hope in their ancestry, such as Redman, Chris, Katepwa, Columbus, Reward, and Lancer, were highly resistant. Analysis of the environment × cultivar interaction indicated that bunt infection levels in Hope, Redman, and Columbus were stable over environments, but infection which varied according to environment was observed for Katepwa and Reward. The reduction of a number of cultivars including Neepawa, Thatcher, Kenya Farmer, Fortuna, Cadet, and Chris, was unstable across environment. Mexican semi-dwarf cultivars, such as Tobari 66, Potem 70, Cajeme 71, Ciano 67, Sonora 64, Inia 66, and the Canadian cultivars HY320, BW 90, and Laura, were highly susceptible. In general, the level of infection in these cultivars was uniform across environments. The nature of resistance in Canadian cultivars, the high infection levels of some Canadian cultivars and their Mexican semi-dwarf ancestors, and the variation in stability of infection levels of some cultivars across environments are discussed. Key words: Triticum aestivum, semi-dwarf, stability analysis, genotype × environment interactions

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