宁夏稻田稗草对丁草胺敏感性分析  

Sensitivity of Barnyard Grass to Butachlor in Paddy Fields of Ningxia

作　　者：马洪文[1] 贺奇[1] 王昕[1] 来长凯[1] 殷延勃[1] MA Hong-wen(Crops Institute,Ningxia Academy of Agriculture and Forestry Sciences,Yongning,Ningxia 750105)

机构地区：[1]宁夏农林科学院农作物研究所

出　　处：《宁夏农林科技》2019年第6期11-12,共2页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏回族自治区重点研发计划(2018BBF02018);国家重点研发计划(2018YFD0200200);现代农业产业技术体系建设专项(CARS-01-84)

摘　　要：利用滤纸法测定了宁夏21份稻田稗草种群对丁草胺的敏感性。结果表明:宁夏稻田稗草已对丁草胺产生了抗药性,其ED50值在4.254 1~197.583 2 mL/L间,抗性指数为1~46.45,不同稗草种群对丁草胺的敏感性有较大的差异。The sensitivity of 21 barnyardgrass populations to butachlor in Ningxia paddy fields was determined by filter paper method.The results showed that barnyard grass in Ningxia paddy field had resistance to butachlor,and its ED50 value was 4.254 1~197.583 2 mL/L,and its resistance index was 1~46.45.The sensitivity of different barnyard grass populations to butachlor was quite different.

关 键 词：稗草 丁草胺 敏感性 稻田 

分 类 号：S451.21[农业科学—植物保护]