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Rice (Oryza sativa) Tolerance to Fenoxaprop

Published online by Cambridge University Press:  12 June 2017

Charles E. Snipes  and
Joe E. Street
Charles E. Snipes
Affiliation:
Mississippi Agric. and For. Exp. Stn., Mississippi State, MS 39762
Joe E. Street
Affiliation:
Delta Branch, Mississippi Agric. and For. Exp. Stn., Stoneville, MS 38776
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Abstract

Experiments were conducted for 3 yr to evaluate the effects of the ethyl ester of fenoxaprop {(±)-2-[4-[(6-chloro-2-benzoxazolyl)oxy] phenoxy] propanoic acid} on rice (Oryza sativa L. 'Starbonnet′) applied at 112 and 168 g ai/ha or as two applications of 112 g ai/ha applied 10 to 14 days apart. Fenoxaprop did not adversely affect grain yield, panicle weight, seed weight, or seed germination when applied before the booting stage of both sprinkler-irrigated and flooded rice. Rice height was sometimes reduced by treatment at earlier growth stages, but yields were not affected. With the exception of applications at early jointing (internode elongation = 6 mm) in 1983, milling yield was not adversely affected by fenoxaprop applications made prior to booting of both sprinkler-irrigated and flood-culture rice. Applications during heading adversely affected most yield parameters.

Keywords

Grain yieldsmilling yieldcrop injurygermination
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 3 , May 1987 , pp. 401 - 406
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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