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