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Relationship between Light and Toxicity Symptoms Caused by Atrazine and Monuron

Published online by Cambridge University Press:  12 June 2017

Floyd M. Ashton
Floyd M. Ashton*
Affiliation:
Department of Botany, University of California, Davis
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Abstract

The morphological symptoms of 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine) and 3-(p-chlorophenyl)-1,1-dimethylurea (monuron) toxicity were expressed in the light but not in the dark. Various wavelengths of narrow band light were produced by the use of colored plastic filters. Oats, var Kanota, and red kidney beans were used. The degree of injury was a function of light intensity, the higher the light intensity the greater the injury. The action spectrum indicated that chlorophyll was the principal absorbing pigment involved in this injury.

Type
Research Article
Information
Weeds , Volume 13 , Issue 2 , April 1965 , pp. 164 - 168
Copyright
Copyright © 1965 Weed Science Society of America 

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References

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