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Bioassay of Benazolin for Auxin Activity Using the Pea (Pisum sativum) Straight Growth Test

Published online by Cambridge University Press:  12 June 2017

Laura L. Whatley  and
Fred W. Slife
Laura L. Whatley
Affiliation:
Dep. Plant Pathol. and Weed Sci., Mississippi State Univ., P.O. Drawer PG, Mississippi State, MS 39762-6007
Fred W. Slife
Affiliation:
Dep. Agron., Univ. of Illinois, 1102 S. Goodwin Ave., Urbana, IL 61801-4798
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Abstract

In the pea straight growth bioassay, both benazolin and indole-3-acetic acid (auxin) solutions promoted the elongation of etiolated pea (Pisum sativum L. ‘Alaska’) epicotyls. Maximal elongation occurred at auxin concentrations ranging from 10-6 to 10-4 M; comparable elongation occurred at a benazolin concentration of 10-4 M. Results of this bioassay indicate that benazolin functions as an auxin, but is much less active than naturally occurring indole-3-acetic acid.

Keywords

Pisum sativum epicotylbenzothiazoleindole-3-acetic acid
Type
Research Article
Information
Weed Science , Volume 31 , Issue 6 , November 1983 , pp. 801 - 802
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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