Tolerance of Six Soft Red Winter Wheat Cultivars to AE F130060 00 Plus AE F115008 00

2004 ◽  
Vol 18 (2) ◽  
pp. 252-257 ◽  
Author(s):  
H. Lane Crooks ◽  
Alan C. York ◽  
David L. Jordan
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
The Other ◽  
Yield Reduction ◽  
Wheat Cultivars ◽  
Visible Injury ◽  
Grain Yields ◽  
Soft Red Winter Wheat ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat

Tolerance of six soft red winter wheat cultivars to AE F130060 00 plus AE F115008 00 applied at 12.5 plus 2.5 g ai/ha and 25 plus 5 g ai/ha, respectively, at the two- to three-tiller stage was examined under weed-free conditions at four locations over 2 yr. Visible injury averaged 5 and 15% 3 wk after treatment (WAT) in years 1 and 2, respectively. Injury was 2% or less 10 WAT. No differences among cultivars were noted for visible injury, and AE F130060 00 plus AE F115008 00 did not reduce grain yield in year 1. In year 2, averaged over herbicide rates, grain yields of the cultivars ‘Coker 9663’, ‘Pioneer 2580’, ‘Coker 9704’, ‘Pioneer 2684’, ‘FFR 555’, and ‘Jackson’ were reduced 3, 5, 6, 8, 10, and 16%, respectively. The yield reduction for Jackson was different from those for the other cultivars. Yield reduction was attributed to reduced numbers of kernels per spike.

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.

Preharvest Sprouting Tolerance in Current Soft Red Winter Wheat Cultivars

Crop Science ◽  
2010 ◽  
Vol 50 (4) ◽  
pp. 1449-1457 ◽  
Author(s):  
K. R. Hughes ◽  
C. A. Griffey ◽  
D. J. Parrish ◽  
W. E. Barbeau ◽  
E. Souza ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Preharvest Sprouting ◽  
Wheat Cultivars ◽  
Soft Red Winter Wheat ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat

scholarly journals Physiologic Specialization of Puccinia triticina on Wheat in the United States in 2016

Plant Disease ◽  
2018 ◽  
Vol 102 (6) ◽  
pp. 1066-1071 ◽  
Author(s):  
J. A. Kolmer ◽  
M. E. Hughes
Keyword(s):  
United States ◽  
Winter Wheat ◽  
Leaf Rust ◽  
Great Plains ◽  
Puccinia Triticina ◽  
The United States ◽  
Wheat Cultivars ◽  
Soft Red Winter Wheat ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat

Leaves of wheat infected with the leaf rust fungus Puccinia triticina were obtained from farm fields and breeding plots at experimental stations in the Great Plains, Ohio River Valley, and southeastern states in 2016 in order to identify virulence phenotypes prevalent in the United States in different wheat-growing regions. In total, 496 single uredinial isolates derived from the leaf rust collections were tested for virulence to 20 lines of Thatcher wheat that differ for single leaf rust resistance genes. In total, 71 virulence phenotypes were described in the United States in 2016. The three most common virulence phenotypes across the United States were MBTNB, MBDSD, and TNBJJ. Phenotype MBTNB is virulent to Lr11, and was most common in the soft red winter wheat region of the southeastern states and Ohio Valley. Phenotype MBDSD is virulent to Lr17 and Lr39, and was most common in the hard red winter wheat area of the southern Great Plains. Phenotype TNBJJ is virulent to Lr24 and Lr39, which are present in the hard red winter wheat cultivars. The P. triticina population in the United States was characterized by two major regional groups of virulence phenotypes in the Great Plains region where hard red winter and spring wheat cultivars are grown, and in the southeastern states and Ohio Valley region where soft red winter wheat cultivars are grown. Isolates from New York State differed the most for virulence compared with the other two major regions.

Soft Red Winter Wheat (Triticum aestivum) Cultivar Response to Metribuzin

Weed Science ◽  
1986 ◽  
Vol 34 (1) ◽  
pp. 66-69 ◽  
Author(s):  
Jill Schroeder ◽  
Philip A. Banks ◽  
Robert L. Nichols
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Field Experiments ◽  
Stem Elongation ◽  
Growth Stages ◽  
Wheat Cultivars ◽  
Soft Red Winter Wheat ◽  
Nutrient Culture ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat

Greenhouse and field experiments, at two locations in Georgia, evaluated the tolerance of several soft red winter wheat cultivars (Triticum aestivumL.) to postemergence applications of metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one]. In the greenhouse, none of the cultivars growing in pots tolerated a 0.6 kg ai/ha treatment of metribuzin applied at the two-to three-tiller, six- to nine-tiller, or early-stem elongation growth stages. In nutrient culture, ‘McNair 1003’ was more tolerant to a 0.15 μg/ml concentration of metribuzin than other cultivars. Significant injury and yield reductions of wheat cultivars treated in the field with 0.6 and 1.1 kg/ha of metribuzin occurred. Differences between the cultivars were not uniform over all experiments. Increased injury was accompanied by higher rainfall and low temperatures subsequent to application. None of the wheat cultivars evaluated in the field experiments was injured by the 0.3 kg/ha rate of metribuzin. Acceptable selective weed control was obtained with this rate, indicating that metribuzin could be used in these soft red winter wheat cultivars.

scholarly journals Characterization of an Ohio Isolate of Brome Mosaic Virus and Its Impact on the Development and Yield of Soft Red Winter Wheat

Plant Disease ◽  
2019 ◽  
Vol 103 (6) ◽  
pp. 1101-1111 ◽  
Author(s):  
B. A. Hodge ◽  
J. D. Salgado ◽  
P. A. Paul ◽  
L. R. Stewart
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Mosaic Virus ◽  
Large Scale ◽  
Field Experiments ◽  
Brome Mosaic Virus ◽  
Yield Reduction ◽  
Soft Red Winter Wheat ◽  
Growing Seasons ◽  
Red Winter Wheat

Brome mosaic virus (BMV) is generally thought to be of little economic importance to crops; consequently, there is little information about its impact on wheat production under field conditions. After repeated detection of BMV in Ohio wheat fields at incidences up to 25%, the virus was isolated, sequenced, characterized, and tested for its impact on soft red winter wheat (SRWW). The Ohio isolate of brome mosaic virus (BMV-OH) was found to be >99% identical to a BMV-Fescue isolate (accession no. DQ530423-25) and capable of systemically infecting multiple monocot and dicot species, including cowpea and soybean, in experimental inoculations. BMV-OH was used in field experiments during the 2016 and 2017 growing seasons to quantify its effect on SRWW grain yield and development when inoculated at Feekes 1, 5, 8, and 10 in two to four cultivars. Cultivar and timing of inoculation had statistically significant (P < 0.05) main and interaction effects on grain yield, wheat growth, and multiple components of yield. Compared with noninoculated controls, BMV-OH reduced grain yield by up to 61% when inoculated at Feekes 1 and by as much as 25, 36, and 31% for inoculations at Feekes 5, 8, and 10, respectively. The magnitude of the yield reduction varied among cultivars and was associated with reductions in grain size and weight or plant population. These findings suggest that BMV could impact wheat productivity in Ohio and will serve as the basis for more large-scale investigations of the effects of this virus in commercial fields.

Sensitivity of soft red winter wheat cultivars to chlorate‐induced toxicity

1992 ◽  
Vol 15 (12) ◽  
pp. 2621-2637
Author(s):  
H. E. Reed ◽  
D. J. Sammons ◽  
V. W. Smail ◽  
G. J. Taylor
Keyword(s):  
Winter Wheat ◽  
Wheat Cultivars ◽  
Soft Red Winter Wheat ◽  
Winter Wheat Cultivars ◽  
Red Winter Wheat
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