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

Published online by Cambridge University Press:  12 June 2017

Jill Schroeder  and
Philip A. Banks
Jill Schroeder
Affiliation:
USDA-ARS, Coastal Plain Exp. Stn., Tifton, GA 31793
Philip A. Banks
Affiliation:
Agron. Dep., Univ. Ga., Athens, GA 30602
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Abstract

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.

Keywords

Dicamba, 3,6-dichloro-2-methoxybenzoic acid2,4-D, (2,4-dichlorophenoxy)acetic acidsoft red winter wheat, Triticum aestivum L.Wheat tolerancewheat cultivarswheat growth stage
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 67 - 71
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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