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

WANG Gui-qi; CUI Hai-lan; ZHANG Hong-jun; ZHANG Yan-qiu; LIU Xue; LI Xiang-ju; FAN Cui-qin

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

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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%.

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《农业科学学报（英文版）》 |2011年第8期|1241-1245|共5页
作者
WANG Gui-qi; CUI Hai-lan; ZHANG Hong-jun; ZHANG Yan-qiu; LIU Xue; LI Xiang-ju; FAN Cui-qin;
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Institute of Food and Oil Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050031 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;

Institute for the Control of Agrochemicals Ministry of Agriculture Beijing 100125 P.R. China;

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

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