| 稻稗对噁唑酰草胺的非靶标抗药性和对氰氟草酯的交互抗药性 |
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| 引用本文： | 左平春,臧晓霞,陈仕红,纪明山.稻稗对噁唑酰草胺的非靶标抗药性和对氰氟草酯的交互抗药性[J].杂草科学,2016(4):28-32. |
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| 作者姓名： | 左平春 臧晓霞 陈仕红 纪明山 |
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| 作者单位： | 沈阳农业大学植物保护学院,辽宁沈阳,110866 |
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| 基金项目： | 国家公益性行业(农业)科研专项(201303031)，辽宁省水稻产业体系专项资金(辽农科[2013]271号) |
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| 摘 要： | 为明确稻稗对噁唑酰草胺的非靶标抗药性和对氰氟草酯的交互抗药性水平,通过剂量反应试验测定辽宁新民(R_1)、黑龙江虎林(R_2)和黑龙江哈尔滨(R_3)3个稻稗种群对噁唑酰草胺的非靶标抗药性和对氰氟草酯的交互抗药性水平。结果显示,R_1、R_2、R_3在喷施细胞色素P450抑制剂杀草强后对噁唑酰草胺的抗性指数比分别为1.14、1.71、2.38,表明R_1对噁唑酰草胺的抗药性与非靶标P450的活性无关,R_2和R_3对噁唑酰草胺的抗药性可能是靶标与非靶标的共同作用。3个稻稗种群对氰氟草酯的抗性指数分别为25.73、12.79、10.29,表明3个稻稗种群都对氰氟草酯产生了交互抗药性。
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| 关 键 词： | 稻稗 (噁)唑酰草胺 氰氟草酯 P450 交互抗药性 |
Non-target Resistance to Metamifop and Cross-Resistance to Cyhalofop-Butyl in Echinochloa phyllopogon (Stapf)Koss. |
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| Abstract: | Non-target resistance to metamifop and cross-resistance to cyhalofop-butyl in Echinochloa phyllopogon was evaluated dose-response experiments using populations from Xinming in Liaoning Province (R1 ),Hulin in Hei-longjiang Province (R2 )and Haerbing in Heilongjiang Province (R3 ).The resistance index to metamifop of R1 ,R2 , R3 decreased 1.14,1.71and 2.38 times,respectively after exposure to the cytochrome P450-inhibiting herbicide,ami-trole,indicating that resistance of R2 and R3 to metamifop is associated with the activity of P450 enzymes whereas that of R1 is not.The resistance index to cyhalofop-butyl of R1,R2,R3 populations was 25.7,12.8 and 10.3,which indi-cates that all of the three populations had a cross-resistance to cyhalofop-butyl. |
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| Keywords: | Echinochloa phyllopogon metamifop cyhalofop-butyl P450 cross-resistance |
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