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Absorption, Translocation, and Metabolism of Acifluorfen and Lactofen in Pitted Morningglory (Ipomoea lacunosa) and Ivyleaf Morningglory (Ipomoea hederacea)

Published online by Cambridge University Press:  12 June 2017

Jeffery M. Higgins ,
Ted Whitwell ,
Fredrick T. Corbin ,
George E. Carter Jr.  and
Hoke S. Hill Jr.
Jeffery M. Higgins
Affiliation:
Agron. and Soils Dep., Clemson Univ., Clemson, SC 29634
Ted Whitwell
Affiliation:
Agron. and Soils Dep., Clemson Univ., Clemson, SC 29634
Fredrick T. Corbin
Affiliation:
Crop Sci. Dep., North Carolina State Univ., Raleigh, NC 27607
George E. Carter Jr.
Affiliation:
Exp. Statistics Unit, Clemson Univ., Clemson, SC 29634
Hoke S. Hill Jr.
Affiliation:
Exp. Statistics Unit, Clemson Univ., Clemson, SC 29634
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Abstract

Experiments were conducted to determine 14C absorption, translocation, and metabolism by pitted morningglory (Ipomoea lacunosa L. # IPOLA) and ivyleaf morningglory [Ipomoea hederacea (L.) Jacq. # IPOHE] foliarly treated with 14C-acifluorfen [5-(2-chloro-4-(trifluoromethyl)phenoxy)-2-nitrobenzoic acid] or 14C-lactofen [(±)-2-ethoxy-1-methyl-2-oxoethyl-5-(2-chloro-4-(trifluoromethyl)phenoxy)-2-dinitrobenzoate]. Seventy-one to 84% of applied 14 C-acifluorfen was recovered in leaf water wash of ivyleaf morningglory compared to 32 to 46% from pitted morningglory. Sixty-four percent of applied 14C-lactofen was recovered in leaf water wash 96 h after treatment in both morningglory species. Thirty-five to 37% more 14C from applied 14C-acifluorfen was found in pitted morningglory treated leaves than ivyleaf morningglory treated leaves. Less than 28% of applied 14C-lactofen was extracted from treated leaves of either morningglory species. Translocation and metabolism of 14C-acifluorfen and 14C-lactofen were minimal in both morningglory species.

Keywords

Penetrationdiphenyl ether herbicidesIPOLAIPOHE
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 36 , Issue 2 , March 1988 , pp. 141 - 145
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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