ABSORPTION, TRANSLOCATION, AND METABOLISM OF TRICLOPYR IN RICE (ORYZA-SATIVA)

Absorption, translocation, and metabolism of C-14-triclopyr were compa red in the rice cultivars 'Lemont' and 'Tebonnet' under flooded and no n-flooded conditions. Radioactivity washed from C-14-triclopyr-treated leaves was 26% at 6 h and decreased to about 11% of that applied at 9 6 h after treatment. Triclopyr was immobile with 98% of the recovered C-14 remaining in the treated rice leaf. An average of 19% of triclopy r was metabolized at 6 h and was similar among flooded and nonflooded rice cultivars. Absorption, translocation, and metabolism of triclopyr did not differ among rice cultivars or flooding treatments.