耐水星、农得时雨久花生物型杂草的发生及防治  

The occurrence and prevention of tolerant biotype Monochoria Korsakowii Regel et Maacket to yrazosulfuron-ethyl and bensulfuron-methyl

作　　者：朴仁哲[1] 金玉姬[1] 蔡春鹏[2] 姜成[1] 

机构地区：[1]延边大学农学院,吉林龙井133400 [2]延边大学学报编辑部,吉林延吉133002

出　　处：《延边大学农学学报》2004年第4期248-252,共5页Agricultural Science Journal of Yanbian University

基　　金：延边大学留学回国人员科研启动基金项目

摘　　要：研究了不同生物型雨久花对水星和农得时的耐性差异.耐性生物型的GR50比感性生物型高2.42和2.80倍.禾大壮和西草净的配合使用对耐性雨久花的鲜重防效达95％以上,丁草胺和扑草净、西草净、扑草净的鲜重防效达80％以上.The different tolerances to pyrazosulfuron-ethyl and bensulfuron-methyl of different biotypes of Monochoria Korsakowii Regel et Maacket were researched. The tolerant Monocho-ria Korsakowii Regel et Maacket to pyrazosulfuron-ethyl and bensulfuron-methyl was discovered in Longjing City in Jilin Province. The GR50 of tolerant biotype was 2.42 times and 2. 80 times higher than that of susceptible biotype . The controlling effect on the fresh weight of tolerant biotype of mixture of molinate and simetryne could reach more than 95 % . The controlling effect of the mixture of butachlor and prometryne, simetryne, and prometryne could reach more than 80%.

关 键 词：雨久花 耐性生物型 水星 农得时 

分 类 号：S451.2[农业科学—植物保护]