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Comparisons of Dihydroxybenzenes and Paraquat

Published online by Cambridge University Press:  12 June 2017

E. J. Hogue  and
G. F. Warren
E. J. Hogue
Affiliation:
Department of Horticulture, Purdue University
G. F. Warren
Affiliation:
Department of Horticulture, Purdue University
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Abstract

Although similar in mode of action, 1,2-dihydroxybenzene (catechol) and 1,1′-dimethyl-4,4′bipyridinium ion (paraquat) at different levels were required to kill plants. Both chemicals were fast-acting, they both required light to be active, and herbicides that inhibit photosynthesis protected the plants temporarily against the action of both compounds. Paraquat and catechol had additive effects on black nightshade (Solanum nigrum L.) but not on redroot pigweed (Amaranthus retroflexus L.). Catechol protected redroot pigweed against the action of paraquat.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 1 , January 1970 , pp. 179 - 182
Copyright
Copyright © 1970 Weed Science Society of America 

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References

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