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Absorption, translocation and metabolism of metribuzin (BAY-94337) in sugarcane

, : Absorption, translocation and metabolism of metribuzin (BAY-94337) in sugarcane. Journal of Agricultural and Food Chemistry 22(4): 578-582

Radioactivity from root-absorbed metribuzin (labelled with 14C at position 5 in the ring) was deposited mainly in the leaves as unknown metabolites. Less than 10% of the 14C could be accounted for and measured by gas chromatography as the parent herbicide and 3 known metabolites; acid hydrolysis increased recovery to about 10%. At 12 weeks 84% of the radioactivity initially added to the nutrient solution was recovered, 75% in the plant tissue, including abscised leaves, and 9% in the nutrient medium. Foliar treatment resulted in a distal movement within the leaves of 5-20% of the applied 14C; another 10-20% remained at the treated site and 1-2% appeared proximally to the treatment area. Foliar residues averaged 25% of the amount applied, relatively independent of the length of time after surface treatment. From summary.


PMID: 4841426

DOI: 10.1021/jf60194a021

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