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Susceptibility of Rice (Oryza sativa) to Various Postemergence Grass Herbicides

Published online by Cambridge University Press:  12 June 2017

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

A 4-yr study was conducted to evaluate the response of rice (Oryza sativa L. 'Starbonnet′) to sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl-3-hydroxy-2-cyclohexen-1-one}, haloxyfop {2-[4-[13-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid}, fluazifop {(±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid}, and quizalofop {(±)-2-[4-(6-chloro-2-quinoxalynyloxy)phenoxy] propanoic acid}. In general, rice was more sensitive when herbicides were applied at panicle initiation than at the tillering stage of development. Quizalofop severely reduced rice yield when applied wih a surfactant. Applied at tillering, sethoxydim at 210 g ai/ha did not reduce rice height, grain yield, milling yield, or seed quality.

Keywords

Tolerancesethoxydimfluazifophaloxyfopquizalofop
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 5 , September 1987 , pp. 686 - 690
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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