Author:
Buhler Douglas D.,Swisher Beth A.,Burnside Orvin C.
Abstract
Behavior of14C-haloxyfop-methyl {methyl 2-[4-[(3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoate} was examined in intact plants of soybean [Glycine max(L.) Merr. ‘Mead’], shattercane [Sorghum bicolor(L.) Moench. ♯ SORVU], and yellow foxtail [Setaria glauca(L.) Beauv. ♯ SETLU] and in cell cultures of soybean and yellow foxtail. Foliar absorption of14C-haloxyfo-methyl by intact plants was almost complete within 48 h. Significant translocation occurred within 48 h of treatment, with soybean and shattercane plants translocating more14C than yellow foxtail. Metabolism of14C-haloxyfop-methyl in intact plants was similar among species. Haloxyfop-methyl was rapidly hydrolyzed to haloxyfop in treated leaves and then translocated to metabolically active areas within the plants. Significant quantities of polar products were also isolated. Soybean cells in suspension culture contained higher levels of14C than did yellow foxtail cells. Most of the14C in soybean cells was haloxyfop-methyl, while yellow foxtail contained mostly haloxyfop.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
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