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Relative Susceptibility of Oats (Avena sativa) and Wheat (Triticum aestivum) to Fluazifop, Haloxyfop, and Sethoxydim

Published online by Cambridge University Press:  12 June 2017

Richard A. Beardmore  and
Dean L. Linscott
Richard A. Beardmore
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Cornell Univ., Ithaca, NY 14853
Dean L. Linscott
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Cornell Univ., Ithaca, NY 14853
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Abstract

The purpose of the research was to determine the effect of several postemergence herbicides on transpiration and growth of seedling oats and wheat. Fluazifop, haloxyfop, and sethoxydim were applied postemergence at various rates to oats and wheat in the 1- to 2-leaf stage in controlled environment rooms and the field. In all cases where transpiration was reduced significantly, oats were affected more than wheat. Generally, haloxyfop and sethoxydim in both controlled environments and the field suppressed oat growth more than wheat. Fluazifop controlled both small grain species equally in the field, but oats were suppressed more under controlled environment conditions. Effects of the three herbicides were always greater in the controlled environments than in the field.

Keywords

Fluazifop, (±)-2-[4-[(5-trifluoromethyl)-2-pyridinyl)oxy]phenoxy]propanoic acidmethyl ester of haloxyfop, 2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl)oxy]phenoxy]propanoic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-oneoat, Avena sativa L. ‘Astro’wheat, Triticum aestivum L. ‘Yorkstar’Transpiration rate
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 76 - 81
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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