Tribenuron-Methyl Resistant Shepherd＇s Purse （Capsella bursa-pastoris （L.） Medik.） in Hebei Province of China

Shepherd＇s purse seeds were collected from winter wheat fields and road sides in Hebei Province,China.Their sensitivities to tribenuron-methyl were evaluated in a whole plant dose response assay in the greenhouse.Results revealed that HB-1,HB-2,HB-3,HB-4,HB-6,HB-7,HB-17,HB-18,HB-19,HB-20,HB-21,and H...

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Published in中国农业科学：英文版 Vol. 10; no. 8; pp. 1241 - 1245
Main Author WANG Gui-qi CUI Hai-lan ZHANG Hong-jun ZHANG Yan-qiu LIU Xue LI Xiang-ju FAN Cui-qin
Format Journal Article
LanguageEnglish
Published 2011
Subjects
中国
剂量响应
抗性水平
敏感性
河北省
苯磺隆
荠菜
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Summary:Shepherd＇s purse seeds were collected from winter wheat fields and road sides in Hebei Province,China.Their sensitivities to tribenuron-methyl were evaluated in a whole plant dose response assay in the greenhouse.Results revealed that HB-1,HB-2,HB-3,HB-4,HB-6,HB-7,HB-17,HB-18,HB-19,HB-20,HB-21,and HB-22 populations were susceptible to tribenuron-methyl characterised by very low GR50 values of about 0.10 g a.i.ha-1.On the other hand,populations HB-15 and HB-16 had moderate resistance to tribenuron-methyl with resistance indices （RI） ranging from 10-100 folds,whilst populations HB-5,HB-8,HB-9,HB-10,HB-11,HB-12,HB-13,and HB-14 expressed high level of resistance to tribenuron-methyl with resistance indices over 100.The proportion of moderate resistance level was about 9.09%,and that of high resistance was about 36.36%.
Bibliography:ALS inhibitor; tribenuron-methyl resistance; shepherd＇s purse （Capsella bursa-pastoris （L.） Medik.）
11-4720/S
Shepherd＇s purse seeds were collected from winter wheat fields and road sides in Hebei Province,China.Their sensitivities to tribenuron-methyl were evaluated in a whole plant dose response assay in the greenhouse.Results revealed that HB-1,HB-2,HB-3,HB-4,HB-6,HB-7,HB-17,HB-18,HB-19,HB-20,HB-21,and HB-22 populations were susceptible to tribenuron-methyl characterised by very low GR50 values of about 0.10 g a.i.ha-1.On the other hand,populations HB-15 and HB-16 had moderate resistance to tribenuron-methyl with resistance indices （RI） ranging from 10-100 folds,whilst populations HB-5,HB-8,HB-9,HB-10,HB-11,HB-12,HB-13,and HB-14 expressed high level of resistance to tribenuron-methyl with resistance indices over 100.The proportion of moderate resistance level was about 9.09%,and that of high resistance was about 36.36%.
WANG Gui-qi,CUI Hai-lan,ZHANG Hong-jun,ZHANG Yan-qiu,LIU Xue,LI Xiang-ju and FAN Cui-qin Institute of Food and Oil,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 000,P.R.China State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection （IPP）,Chinese Academy of Agricultural Sciences （CAAS）,Beijing 100193,P.R.China 3 Institute for the Control of Agrochemicals,Ministry of Agriculture,Beijing 100125,P.R.China
ISSN:1671-2927