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Absorption and Translocation of Fluridone and Glyphosate in Submersed Vascular Plants

Published online by Cambridge University Press:  12 June 2017

L. Y. Marquis ,
R. D. Comes  and
C. P. Yang
L. Y. Marquis
Affiliation:
Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Center, Prosser, WA 99350
R. D. Comes
Affiliation:
Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Center, Prosser, WA 99350
C. P. Yang
Affiliation:
Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Center, Prosser, WA 99350
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Abstract

The uptake and translocation of fluridone {1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinone} were examined in sago pondweed (Potamogeton pectinatus L.) and Richardson pondweed [Potamogeton richardsonii (Ar. Benn.) Rydb.]. Root and shoot tissues of both species were isolated from each other with wax barriers and treated individually with 1.0 ppm 14C-fluridone. Both tissues bioconcentrated fluridone, but the amount absorbed represented 1% or less of the total herbicide available. Limited root-to-shoot translocation occurred, but shoot-to-root transport was negligible. In contrast to fluridone, highly mobile glyphosate [N-(phosphonomethyl) glycine] translocated from the shoots to the roots in sago pondweed. No metabolism of fluridone was detected in sago pondweed.

Keywords

HerbicidemetabolismaquaticPotamogeton pectinatusPotamogeton richardsonii
Type
Research Article
Information
Weed Science , Volume 29 , Issue 2 , March 1981 , pp. 229 - 236
Copyright
Copyright © Weed Science Society of America 

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References

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