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Bioassay Method for Determining 2,4-D in Plant Tissues

Published online by Cambridge University Press:  12 June 2017

O. A. Leonard ,
R. J. Weaver  and
B. L. Kay
O. A. Leonard
Affiliation:
Agronomy, University of California, Davis
R. J. Weaver
Affiliation:
Agronomy, University of California, Davis
B. L. Kay
Affiliation:
Agronomy, University of California, Davis
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Abstract

The method was based on the minimum dosage of 2,4–dichlorophenoxyacetic acid (2,4–D) that would produce strapping or cupping of cotton leaves. Dilutions of an unknown were applied to cotton cotyledons. The minimum dosage required to produce strapped or cupped leaves two weeks later was approximately 0.05 μg/plant. The results of this bioassay were comparable to tracer methods, but the latter can detect smaller quantities of 2,4–D.

Type
Research Article
Information
Weeds , Volume 10 , Issue 1 , January 1962 , pp. 20 - 22
Copyright
Copyright © 1962 Weed Science Society of America 

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References

Literature Cited

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