不同玉米品种对土壤中残留咪唑乙烟酸的敏感性

BAI Shuang, ZHANG Jianyi, HUANG Feipeng,LUO Xiaoyong,LI Lingxu

Modern Agrochemicals(2022)

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Abstract
利用温室盆栽法测定了47个杂交玉米品种对土壤中残留咪唑乙烟酸的敏感性.结果表明,不同玉米品种对咪唑乙烟酸的敏感性有较大差异.在玉米种子萌发阶段,咪唑乙烟酸对'登海710'登海605'登海3622'明天695'良玉99'等37个玉米品种抑制中浓度均大于3 mg/kg,且相互间无显著性差异;对'先玉335'的萌发抑制最严重,抑制中浓度为0.158 mg/kg.在玉米早期生长阶段,'登海533'对咪唑乙烟酸最敏感,对株高、鲜重的抑制中浓度分别为0.155和0.131 mg/kg;'紫金605'对咪唑乙烟酸耐受性最高,对株高、鲜重的抑制中浓度分别为2.230和1.991 mg/kg.本研究结果可初步为在咪唑乙烟酸残留地块种植下茬玉米品种的选择提供一定的科学依据.
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