Tribenuron-Methyl Resistant Flixweed(Descurainia sophia)  

作　　者：CUI Hai-lan ZHANG Chao-xian ZHANG Hong-jun HUANG Hong-juan WEI Shou-hui LIU Xue WANG Gui-qi LIU Yan 

机构地区：[1]Key Laboratory of Feed and Rodent Biology and Management, Institute of Plant Protection, Chinese Academy of Agricultural Sciences Beijing 100193, P.R.China [2]Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, P.R.China [3]Institute of Food and Oil, Hebei Academy of Agriculture and Forestry, Shijiazhuang 050031, P.R.China

出　　处：《Agricultural Sciences in China》2009年第4期488-490,共3页中国农业科学（英文版）

基　　金：funded by the National Key Technology R&D Program of China (2006BAD08A09)

摘　　要：Flixweed seeds were collected from suspected winter wheat fields and remote hillside in Shaanxi Province, China, their sensitivities to tribenuron-methyl were evaluated in the greenhouse. Results revealed that biotype S was susceptible to tribenuron, and its GRs0 was 0.23 g a.i. ha^-1, whereas biotypes R1, R2, R3, and R4 were resistant to the tribenuron, and their GR50 were 161.99, 79.70, 439.80, and 312.30, respectively. Biotypes R1 and R2 showed moderate resistance with resistant indices （RI） of 615.23 and 302.7, respectively. Whereas biotypes R3 and R4 showed high resistance to the herbicide with RI values as high as 1 670.34 and 1 186.10, respectively.Flixweed seeds were collected from suspected winter wheat fields and remote hillside in Shaanxi Province, China, their sensitivities to tribenuron-methyl were evaluated in the greenhouse. Results revealed that biotype S was susceptible to tribenuron, and its GRs0 was 0.23 g a.i. ha^-1, whereas biotypes R1, R2, R3, and R4 were resistant to the tribenuron, and their GR50 were 161.99, 79.70, 439.80, and 312.30, respectively. Biotypes R1 and R2 showed moderate resistance with resistant indices （RI） of 615.23 and 302.7, respectively. Whereas biotypes R3 and R4 showed high resistance to the herbicide with RI values as high as 1 670.34 and 1 186.10, respectively.

关 键 词：ALS inhibitor TRIBENURON-METHYL RESISTANCE 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] S451.221[农业科学—植物保护]