【Objective】New rice materials with resistance to white-backed planthopper(WBPH) were selected from Guangxi common wild rice materials,in order to provide basic materials for resistant varieties breeding and genetic improvement of cultivated rice.【Method】A total of 218 common wild rice materials were identified at adult-plant stage for preliminary screening with Ptb33 as resistant control and 9311 as susceptible control,so some WBPH-resistant lines were selected from them.And seedling bulk test was used to i...