Study on the Resistance Levels of Different Echinochloa crusgalli Populations to Penoxsulam and Bispyribac-sodium  

作　　者：Qi LEI Bingjie LIU Jingbo LI Yunyun ZHOU Kailing PENG Chenzhong JIN Xiu LIU Kaifa GUO Guiying LIU 

机构地区：[1]Key Laboratory of Green Prevention and Control of Crop Pests,Hunan University of Humanities,Science and Technology/Hunan Provincial Collaborative Innovation Center for Farmland Weed Control Technology and Application,Loudi 417000,China

出　　处：《Agricultural Biotechnology》2022年第4期32-35,共4页农业生物技术（英文版）

基　　金：Supported by Science and Technology Innovation Program of Hunan Province(2019NK4170);Research Innovation Program for College Graduates of Hunan Province(CX2018B796)。

摘　　要：[Objectives]This study was conducted to screen the resistance of Echinochloa crusgalli in some paddy fields in Changde City,Yiyang City and Yueyang City in Hunan Province to penoxsulam and bispyribac-sodium.[Methods]The resistance to penoxsulam and bispyribac-sodium was screened in 11 E.crusgalli populations collected from rice production areas in Changde,Yiyang and Yueyang Cities,Hunan Province,and the resistance level of population HU-2 to penoxsulam was determined.[Results]HU-1 to HU-6 and HU-8 A,a total of seven populations showed high levels of resistance to penoxsulam and bispyribac-sodium.The resistance level of population HU-2 to penoxsulam was extremely high;population HU-7 showed low-level resistance to both drugs;HU-11 population showed low-level resistance to penoxsulam and was susceptible to bispyribac-sodium;and populations HU-8 and HU-9 were susceptible to penoxsulam and bispyribac-sodium.[Conclusions]This study provides a technical basis for the rational use of penoxsulam and bispyribac-sodium and the selection of control chemicals for E.crusgalli in paddy fields.

关 键 词：Echinochloa crusgalli POPULATION PENOXSULAM BISPYRIBAC-SODIUM RESISTANCE 

分 类 号：S451.2[农业科学—植物保护]