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Bentazon Translocation and Metabolism in Soybean and Navy Bean

Published online by Cambridge University Press:  12 June 2017

Martin D. Mahoney  and
Donald Penner
Martin D. Mahoney
Affiliation:
Dep. of Crop and Soil Sci., Michigan State Univ., E. Lansing, MI 48824
Donald Penner
Affiliation:
Dep. of Crop and Soil Sci., Michigan State Univ., E. Lansing, MI 48824
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Abstract

Following foliar application of 14C-bentazon [3-isopropyl-1H-2,1,3-benzothiadiazin-(4)3H-one 2,2-dioxide], a promising selective postemergence herbicide for the control of broadleaf weeds in soybean [Glycine max (L.) Merr.] and navy bean (Phaseolus vulgaris L.), the movement of the 14C-label was primarily acropetal in both species, with some basipetal movement. Metabolism was more rapid in the trifoliate navy bean leaf than in the unifoliate navy bean leaf and the trifoliate soybean leaf. Prior treatment with several other herbicides did not decrease metabolism of bentazon in navy bean. The metabolites in navy bean and soybean appeared similar. Four apparent 14C-conjugates were isolated from soybean plants harvested at full maturity.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 4 , July 1975 , pp. 265 - 271
Copyright
Copyright © 1975 by the Weed Science Society of America 

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References

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