Wk. Vencill, ABSORPTION, TRANSLOCATION, AND METABOLISM OF FLURTAMONE IN SICKLEPOD (CASSIA-OBTUSIFOLIA) AND PEANUT (ARACHIS-HYPOGAEA), Journal of plant growth regulation, 13(1), 1994, pp. 11-14
The basis of peanut tolerance to the bleaching herbicide flurtamone wa
s examined. The absorption, translocation, and metabolism of C-14-flur
tamone were examined in peanut at 6, 24, and 48 h after root applicati
on. Differences in C-14-flurtamone uptake over time were not detected.
Approximately 40% of the absorbed C-14-flurtamone was in the leaves a
t 6 h after treatment; 60% was metabolized to polar products 41% of ab
sorbed C-14 in 6 h; 40% of this moved from roots to shoots; and 60% of
this did not co-chromatograph with the parent; 9.8% of applied C-14-f
lurtamone was altered in leaf tissue. The levels of metabolized flurta
mone increased with time after treatment (75% and 83% of applied C-14-
flurtamone metabolized at 24 and 48 h, respectively). Parent C-14-flur
tamone was detectable with R(t) of 7 min and unknown metabolites with
an R(t) of 3.3, 4.4, and 5.6 min, respectively, was detected in leaf t
issue at 6, 24, and 48 h after treatment.