Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-16T17:23:38.157Z Has data issue: false hasContentIssue false

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

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.

Type
Research
Copyright
Copyright © 1989 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. French, C. M., Nichols, R. L., and Swann, C. W. 1985. Susceptibility of soft red winter wheat to phenoxy and benzoic acids. Proc. South. Weed Sci. Soc. 38:106.Google Scholar
2. Klepper, B., Rickman, R. W., and Peterson, C. M. 1982. Quantitative characterization of vegetative development in small cereal grains. Agron. J. 74:789792.Google Scholar
3. Large, E. C. 1954. Growth stages in cereals. Illustration of the Feekes Scale. Plant Path. 3:128129.Google Scholar
4. Rickman, R. W., Klepper, B., and Peterson, C. M. 1985. Wheat seedling growth and development response to incident photosynthetically active radiation. Agron. J. 77:283287.Google Scholar
5. Robison, L. R., and Fenster, C. R. 1973. Winter wheat response to herbicides applied postemergence. Agron. J. 65:749751.Google Scholar
6. Sarpe, N., Ionescu, F., Vladutu, I., Fritea, T., and Apostol, V. 1980. The tolerance of some winter wheat varieties to the herbicides 2,4-D, dicamba, bentazon, and bromofenoxim, depending on dose and the time of application. Proc. 1980 Br. Crop. Prot. Conf. – Weeds, p. 867869.Google Scholar
7. Tottman, D. R. 1977. A comparision of the tolerance of winter wheat of herbicide mixtures containing dicamba and 2,3,6-TBA, or ioxynil. Weed Res. 17:273282.Google Scholar
8. Tottman, D. R. 1978. The effects of a dicamba herbicide mixture on the grain yield components of winter wheat. Weed Res. 18:335340.Google Scholar