野燕麦群体对麦极抗药性的研究  

Studies on Herbicide-resistance of Wild Oat (Avena fatua L.) Populations to Clodinafop-propargyl

作　　者：陈保桦[1] 张娟[1] 伊布[1] 李润枝[1,2] 

机构地区：[1]中国农业大学,北京100193 [2]天津农学院,天津300384

出　　处：《中国农学通报》2011年第18期255-259,共5页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金项目"野燕麦对ALS抑制剂类除草剂抗药性分子机理研究"(30800726)

摘　　要：为探讨中国野燕麦群体是否已对除草剂麦极产生抗药性,于2008—2010年连续3年在河南、安徽、江苏省的部分麦区进行野燕麦群体的采集,选用瑞士先正达公司生产的麦极15%可湿性粉剂,采用温室整株植物测定法检测野燕麦群体对麦极抗药性的发生情况。试验结果表明,在2008年的抗性检测中,河南、安徽、江苏3省的抗性植株比例分别为:6.94%、8%、11.22%;2009年的抗性检测结果是:7.14%、7.06%、12.37%;而2010年试验所得出的抗性植株所占各群体比例分别为:7.44%、7.62%、11.5%。结果表明野燕麦群体对麦极已产生不同程度低水平抗药性。其中,江苏采样群体的抗药性比率最高,不同年度群体均超过10%。虽然目前这些群体只产生低水平抗性,但是考虑到麦极是麦田主要除草剂之一,施用剂量和频率都较高,因此,在上述地区必须加强不同作用机制除草剂的科学轮换,避免野燕麦对麦极抗药性的进一步发展。The wild oat populations in Henan,Anhui,Jiangsu wheat production field were collected in 2008,2009 and 2010.These populations were tested resistance to clodinafop-propargyl by whole plant test in greenhouse.The results showed all wild oat populations evolved low resistance to clodinafop-propargyl.Of these,the resistance frequency of wild oats populations in Jiangsu Province in 2008,2009 and 2010 were 11.22%,12.37% and 11.5%.The resistance frequency of wild oat populations in Henan Province,Anhui Province were 6.94%,8% in 2008,7.14%,7.06% in 2009 and 7.44%,7.62% in 2010.Compared with other populations,wild oat populations in Jiangsu Province was comparatively high.Although these populations revolved low resistance,clodinafop-propargyl was one of the most primary herbicides in these fields with high usage and frequency.So herbicide rotation must be taken into consideration in these fields.

关 键 词：麦极 野燕麦 除草剂 抗药性 

分 类 号：S451.2[农业科学—植物保护]