Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 57, Issue 10, Pages 4398-4402Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf9001389
Keywords
Absorption; translocation; residue; herbicide; ZJ0273
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A study was conducted to investigate the absorption and translocation of a novel herbicide C-14-ZJ0273 in the seedlings and the residue in the mature plants of oilseed rape. Total absorption of C-14-ZJ0273 into seedlings and mature plants of oilseed rape reached 39.7% and 34.2% at the end of the experiments, respectively. Movement of the absorbed C-14 in the plants was both acropetal and basipetal. However, more than 89.2% of the absorbed C-14 remained in the treated leaf of the tested plants. The distribution of the absorbed C-14 in the seedlings followed the order treated leaf (TL) > leaves above the treated leaf (LATL) > leaves below the treated leaf (LBTL) > roots and stalks, while in the mature oilseed rape, the order followed was TL > LATL > LBTL and stems > seed capsules, seed, and roots > branches. Only the parent compound ZJ0273 was found in the extractable residue of the oil rape seeds with a concentration of 0.09 mg per kg dry weight. The residue level in oil seeds suggested a low dietary exposure for humans if recommended application rates were followed.
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