Resistance Level and Metabolism of Barnyard-Grass (Echinochloa crusgalli(L.) Beauv.) Populations to Quizalofop-p-ethyl in Heilongjiang Province,China  

作　　者：HUAN Zhi-bo ZHANG Hong-jun HOU Zhen ZHANG Shao-yi ZHANG Yang LIU Wei-tang BI Ya-ling WANG Jin-xin 

机构地区：[1]College of Plant Protection, Shandong Agricultural University, Tai ＇an 271018, P.R. China [2]Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, P.R.China

出　　处：《Agricultural Sciences in China》2011年第12期1914-1922,共9页中国农业科学（英文版）

基　　金：supported by the Ph D Programs Foundation of Ministry of Education of China(20093702110003);the National Key Technology R&D Program of China (2006BAD08A09)

摘　　要：Eleven barnyardgrass populations were assayed. The highest resistant population was Geqiushan R with RI 125.45 resulted from the seed assay and 87.29 resulted from the whole plant bioassay followed by 853 R with RI 2.79 resulted from the seed assay and 6.04 resulted from the whole plant bioassay. The resistance level of other nine populations was low with RI 1.13-2.61 resulted from the seed assay and 1.48-3.63 resulted from the whole plant bioassay. The activity of an important metabolic enzyme glutathione S-transferases （GSTs） and three protective enzymes （SOD, POD, and CAT） were determined in vivo for Geqiushan R, 853 R, and Wudalianchi R. Compared with the S controls, the activities of POD in Geqiushan R, GSTs in 853 R, and Wudalianchi R were increased.Eleven barnyardgrass populations were assayed. The highest resistant population was Geqiushan R with RI 125.45 resulted from the seed assay and 87.29 resulted from the whole plant bioassay followed by 853 R with RI 2.79 resulted from the seed assay and 6.04 resulted from the whole plant bioassay. The resistance level of other nine populations was low with RI 1.13-2.61 resulted from the seed assay and 1.48-3.63 resulted from the whole plant bioassay. The activity of an important metabolic enzyme glutathione S-transferases （GSTs） and three protective enzymes （SOD, POD, and CAT） were determined in vivo for Geqiushan R, 853 R, and Wudalianchi R. Compared with the S controls, the activities of POD in Geqiushan R, GSTs in 853 R, and Wudalianchi R were increased.

关 键 词：barnyard-grass Echinochloa crusgalli QUIZALOFOP-P-ETHYL resistance level METABOLISM 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治] S451.21[农业科学—植物保护]