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以垦玉6号玉米为试验材料,采用土培法研究新型除草剂解毒剂N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷减轻除草剂氯嘧磺隆残留对玉米产生的药害,初步探讨其机理。研究结果表明,随土壤中氯嘧磺隆残留浓度增加,玉米生长受到抑制。采用不同浓度解毒剂浸种处理后,均可在一定程度上减轻氯嘧磺隆残留对玉米产生的药害。当土壤中氯嘧磺隆的残留浓度为2μg/kg,解毒剂的浸种浓度为5 mg/kg时解毒效果最好,玉米株高和主根长的恢复率可达对照的109.71%和90.99%,幼苗中的谷胱甘肽(GSH)含量和乙酰乳酸合成酶活性(ALS)分别达到对照的106.8%和116.7%。
The experiment was conducted to study the effects of the herbicide antidote N-dichloroacetyl-2-methyl-1-oxa-4-aza-spiro [4.4] Agent chlorimuron residues on corn injury, preliminary study of its mechanism. The results showed that with the increase of residual concentration of chlorimuron-ethyl in soil, the growth of maize was inhibited. With different concentrations of antidote soaking treatment, can reduce to some extent, chlorimuron residue of corn injury. When the residual concentration of chlorimuron-ethyl in the soil was 2μg / kg, the detoxification effect was best when the antidote concentration was 5 mg / kg, and the recovery rate of maize plant height and main root length reached 109.71% and 90.99% of the control. The content of glutathione (GSH) and acetolactate synthase (ALS) in seedlings reached 106.8% and 116.7% of the control, respectively.