QTL and major genes influencing grain yield potential in soft red winter wheat adapted to the southern United States

Euphytica ◽  
2016 ◽  
Vol 209 (3) ◽  
pp. 665-677 ◽  
Author(s):  
Christopher K. Addison ◽  
R. Esten Mason ◽  
Gina Brown-Guedira ◽  
Mohammed Guedira ◽  
Yuanfeng Hao ◽  
...  
Keyword(s):  
United States ◽  
Winter Wheat ◽  
Grain Yield ◽  
Yield Potential ◽  
Southern United States ◽  
Major Genes ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

Sunrise soft red winter wheat

2012 ◽  
Vol 92 (1) ◽  
pp. 195-198 ◽  
Author(s):  
D. B. Fowler
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Leaf Rust Resistance ◽  
Triticum Aestivum L ◽  
High Energy ◽  
General Purpose ◽  
Tan Spot ◽  
Yield Potential ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

Fowler, D. B. 2012. Sunrise soft red winter wheat. Can. J. Plant Sci. 92: 195–198. Sunrise is a high-yielding soft red winter wheat (Triticum aestivum L.) cultivar that is registered in the Canada Western General Purpose (CWGP) wheat class for production in western Canada. The CWGP wheat class was created in 2008 to encourage the development of cultivars to fill the high energy demands of the biofuel and livestock feed markets. The grain yield of Sunrise is similar to the high-yielding hard red and soft white winter wheat cultivars registered in the CWGP class. It has good stem rust, stripe rust, and tan spot resistance and moderate leaf rust resistance. High grain yield potential of low protein concentration grain combined with good agronomic and disease packages make Sunrise a good fit for the CWGP class.

scholarly journals Quantifying the Effects of Fusarium Head Blight on Grain Yield and Test Weight in Soft Red Winter Wheat

2015 ◽  
Vol 105 (3) ◽  
pp. 295-306 ◽  
Author(s):  
Jorge David Salgado ◽  
Laurence V. Madden ◽  
Pierce A. Paul
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Fusarium Head Blight ◽  
Fixed Effects ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Test Weight ◽  
Head Blight ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

Fusarium head blight (FHB), caused by the fungus Fusarium graminearum, is known to negatively affect wheat grain yield (YLD) and test weight (TW). However, very little emphasis has been placed on formally quantifying FHB–YLD and FHB–TW relationships. Field plots of three soft red winter wheat cultivars—‘Cooper’ (susceptible to FHB), ‘Hopewell’ (susceptible), and ‘Truman’ (moderately resistant)—were grown during the 2009, 2010, 2011, and 2012 seasons, and spray inoculated with spore suspensions of F. graminearum and Parastagonospora nodorum to generate a range of FHB and Stagonospora leaf blotch (SLB) levels. FHB index (IND) and SLB were quantified as percent diseased spike and flag leaf area, respectively, and YLD (kg ha−1) and TW (kg m−3) data were collected. Using IND as a continuous covariate and cultivar (CV) and SLB as categorical fixed effects, linear mixed-model regression analyses (LMMR) were used to model the IND–YLD and IND–TW relationship and to determine whether these relationships were influenced by CV and SLB. The final models fitted to the data were of the generic form y = a + b (IND), where a (intercept) or b (slope) could also depend on other factors. LMMR analyses were also used to estimate a and b by combining the studies from these 4 years with an additional 16 experiments conducted from 2003 to 2013, and bivariate random-effects meta-analysis was used to estimate population mean b ([Formula: see text]) and a (ā) for the IND–YLD relationship. YLD and TW decreased as IND increased, with b ranging from −3.2 to −2.3 kg m−3 %−1 for TW. For the IND–YLD relationship, [Formula: see text] was −51.7 kg ha−1 %IND−1 and ā was 4,426.7 kg ha−1. Neither cultivar nor SLB affected the IND–YLD relationship but SLB affected a of the IND–TW regression lines, whereas cultivar affected b. Plots with the highest levels of SLB (based on ordinal categories for SLB) had the lowest a and Hopewell had the highest b. The level of IND at which a 50-kg m−3 reduction in TW was predicted to occur was 19, 16, and 22% for Cooper, Hopewell, and Truman, respectively. A yield loss of 1 MT ha−1 was predicted to occur at 19% IND. The rate of reduction in relative TW or YLD per unit increase in IND was between −0.39 and −0.32%−1 for TW and −1.17%−1 for YLD. Results from this study could be integrated into more general models to evaluate the economics of FHB management strategies.

scholarly journals Genetic Structure of Phaeosphaeria nodorum Populations in the North-Central and Midwestern United States

2008 ◽  
Vol 98 (1) ◽  
pp. 101-107 ◽  
Author(s):  
T. B. Adhikari ◽  
S. Ali ◽  
R. R. Burlakoti ◽  
P. K. Singh ◽  
M. Mergoum ◽  
...  
Keyword(s):  
United States ◽  
Genetic Structure ◽  
Genetic Differentiation ◽  
Winter Wheat ◽  
North Dakota ◽  
Wheat Cultivars ◽  
Soft Red Winter Wheat ◽  
Phaeosphaeria Nodorum ◽  
Central United States ◽  
Red Winter Wheat

Stagonospora nodorum blotch, caused by Phaeosphaeria nodorum, is considered one of the most destructive foliar diseases of wheat in the United States. However, relatively little is known about the population biology of this fungus in the major wheat-growing regions of the central United States. To rectify this situation, 308 single-spore isolates of P. nodorum were analyzed from 12 populations, five from hard red spring wheat cultivars in Minnesota and North Dakota and seven from soft red winter wheat in Indiana and Ohio. The genetic structure of the sampled populations was determined by analyzing polymorphisms at five microsatellite or simple-sequence repeat (SSR) loci and the mating type locus. Although a few clones were identified, most P. nodorum populations had high levels of gene (HS = 0.175 to 0.519) and genotype (D = 0.600 to 0.972) diversity. Gene diversity was higher among isolates collected from spring wheat cultivars in North Dakota and Minnesota (mean HS = 0.503) than in those from winter wheat cultivars in Indiana and Ohio (HS = 0.269). Analyses of clone-corrected data sets showed equal frequencies of both mating types in both regional and local populations, indicating that sexual recombination may occur regularly. However, significant gametic disequilibrium occurred in three of the four populations from North Dakota, and there was genetic differentiation both within and among locations. Genetic differentiation between the hard red spring and soft red winter wheat production regions was moderate (FST = 0.168), but whether this is due to differences in wheat production or to geographical variation cannot be determined. These results suggest that sexual reproduction occurs in P. nodorum populations in the major wheat-growing regions of the central United States, and that geographically separated populations can be genetically differentiated, reflecting either restrictions on gene flow or selection.

Soft Red Winter Wheat (Triticum aestivum) Response to Dicamba and Dicamba Plus 2,4-D

1989 ◽  
Vol 3 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Jill Schroeder ◽  
Philip A. Banks
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Yield ◽  
Field Experiments ◽  
Wheat Cultivars ◽  
Soft Red Winter Wheat ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat

Soft red winter wheat cultivars were evaluated in field experiments in Georgia for tolerance to dicamba alone and mixed with 2,4-D. Treatments reduced ‘Florida 302’ yield more than ‘Florida 301’ or ‘Coker 983’ at Tifton in 1986. Mid-tillering Florida 302 wheat was more sensitive to treatment than fully tillered wheat. In 1987, dicamba plus 2,4-D applied at mid-tillering reduced yields of all cultivars in Watkinsville. Injury and yield reductions occurred primarily when mid-tiller treatments were applied to wheat that was planted 10 or 21 days later than recommended at Tifton or Watkinsville, respectively. When applied according to labeling, dicamba or dicamba plus 2,4-D use in Georgia soft red winter wheat can reduce grain yield.

scholarly journals Performance of soft red winter wheat subjected to field soil waterlogging: Grain yield and yield components

2016 ◽  
Vol 194 ◽  
pp. 57-64 ◽  
Author(s):  
M. Nelly Arguello ◽  
R. Esten Mason ◽  
Trenton L. Roberts ◽  
Nithya Subramanian ◽  
Andrea Acuña ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Yield Components ◽  
Field Soil ◽  
Soil Waterlogging ◽  
Soft Red Winter Wheat ◽  
Yield And Yield Components ◽  
Red Winter Wheat

Accipiter hard red winter wheat

2011 ◽  
Vol 91 (2) ◽  
pp. 363-365 ◽  
Author(s):  
D. B. Fowler
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Leaf Rust Resistance ◽  
Triticum Aestivum L ◽  
High Energy ◽  
General Purpose ◽  
Yield Potential ◽  
Western Canada ◽  
Hard Red Winter Wheat ◽  
Red Winter Wheat

Fowler, D. B. 2011. Accipiter hard red winter wheat. Can. J. Plant Sci. 91: 363–365. Accipiter is an intermediate height, high-yielding, winter wheat (Triticum aestivum L.) cultivar with good stem and moderate leaf rust resistance that is registered for production in western Canada. It is a hard red winter wheat cultivar that is eligible for grades of the Canada Western General Purpose (CWGP) wheat class. The CWGP class was created in 2007 to encourage the development of cultivars to fill the high energy demands of the biofuel and livestock feed markets in western Canada. The grain yield of Accipiter was 114% of the Canada Western Red Winter Wheat class grain quality check cultivar, CDC Osprey, and 103% of the high-yielding check, CDC Falcon. High grain yield potential combined with good agronomic and disease packages make Accipiter a good fit for the CWGP class.

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