《Table 1 Effects of different concentrations of ZJ0273 on the concentrations of free amino acids and

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《除草剂丙酯草醚对大麦的影响和支链氨基酸对其生长的恢复作用（英文）》

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Within a column，means at the same DAT followed by the same letters are not significantly different by the LSD test at P≤0.05 under completely randomized design.Data were analyzed separately at each measurement time.DAT:days after treatment；Val:valine；Leu

A significant increase in BCAAs such as Val，Leu，and ILe was recorded in response to increasing the ZJ0273 application rate or the treatment duration in this field trial（Table 1）.BCAAs in barley leaves remained unaffected by the lower herbicide（100 mg/L）level at 5 DAT，but the treated plants experienced a significant increase in BCAAs at 10 and 15 DAT.No significant change in BCAAs was observed when the ZJ0273 treatment rate was increased beyond 100 mg/L at 10 DAT.BCAAs were undetectable in plant tissues under higher ZJ0273 treatments（500 and 1000 mg/L），when treatment duration was prolonged to 15 d.