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Effect of BAS-145–138 on the phytotoxicity of imazaquin and metsulfuron-methyl

Published online by Cambridge University Press:  12 June 2017

Alain Seguin ,
Henri Milhomme  and
Norbert M. Satchivi
Alain Seguin
Affiliation:
Laboratoire de Microbiologie, Université de Perpignan, 52 avenue de Villeneuve, 66860 Perpignan Cedex, France
Norbert M. Satchivi
Affiliation:
URA CNRS n° D0461, Université de Perpignan, 52 avenue de Villeneuve, 66860 Perpignan Cedex, France
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Extract

The influence of the experimental herbicide safener BAS-145–138 on the toxicity of imazaquin and metsulfuron-methyl was investigated in two corn varieties in growth chamber bioassays. BAS-145–138 alone slightly decreased root and shoot growth but this decrease was not dependent on the safener concentration. The imbibition of seeds of both corn varieties with low levels of safener caused substantially less damage in the roots and shoots especially with the highest metsulfuron-methyl doses used in the study. In one variety, the safener significantly increased corn root tolerance to imazaquin and to metsulfuron-methyl 1.5- and 2.3-fold, respectively; the concentrations of both herbicides producing 50% inhibition were higher for safened seedlings. In the other variety, a high antidotal influence of BAS-145–138 imbibition on metsulfuron-methyl was observed in shoot growth.

Keywords

BAS-145–138, 1-dichloroacetyl-hexahydro-3,3,8-α-trimethyl-pyrrolo-(1,2-α)-pyrimidin-6-(2H)-onechlorimuron-ethyl, imazaquin, metazachlor, (N-[2,6-dimethyl-phenyl]-N-[1-pyrazolyl-methyl]-chloroacetamide)metsulfuron-methyl, corn, Zea mays L.Safener, Zea mays.
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 47 , Issue 2 , April 1999 , pp. 130 - 135
Copyright
Copyright © 1999 by the Weed Science Society of America 

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References

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