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Influence of Norflurazon on the Activation of Substituted Diphenylether Herbicides by Light

Published online by Cambridge University Press:  12 June 2017

Robert M. Devlin ,
Stanislaw J. Karczmarczyk  and
Irena I. Zbiec
Robert M. Devlin
Affiliation:
Lab. of Exp. Biol., Cranberry Exp. Stn., Univ. of Massachusetts, East Wareham, MA 02538
Stanislaw J. Karczmarczyk
Affiliation:
Acad. Agric., Szczecin, Poland
Irena I. Zbiec
Affiliation:
Acad. Agric., Szczecin, Poland
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Abstract

Oxyfluorfen [2 - chloro -1 - (3 - ethoxy - 4 - nitrophenoxy) -4 - (trifluoromethyl)benzene] and RH-8817 {ethyl 5 - [2-chloro - 4 -{trifluoromethyl) phenoxy] - 2 - nitrobenzoate} require light for activation. Removal of carotenoids by treating corn (Zea mays L.) seedlings with norflurazon [4 - chloro - 5 - (methylamino) - 2 - (α, α, α - trifluoro -m - tolyl) - 3 (2H) - pyridazinone] rendered them partially tolerant of oxyfluorfen and RH-8817 even when grown in the light. The activation of substituted diphenylether herbicides may occur as a result of the absorption of light energy by carotenoids.

Keywords

Carotenoidschlorophylllight activationoxyfluorfenRH-8817
Type
Research Article
Information
Weed Science , Volume 31 , Issue 1 , January 1983 , pp. 109 - 112
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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