摘要
对各调查点的褐飞虱生物型监测结果表明，云南思茅以孟加拉型为优势种群，成都优势种群已由生物型Ⅰ转为生物型Ⅱ，其余各点均以生物型Ⅱ为优势种群。该虫孟加拉型在广西南宁、灵川，江苏江浦已占有一定的比例，成都尚未发现该型。在抗生物型Ⅱ的品种中，孟加拉型所占的比例上升。模糊聚类结果表明，该虫可分为两大类：云南思茅为一类，广西南宁、灵川、龙州，广东新会、四川成都、湖北九宫山、监利，安徽怀宁、江苏江浦等为一类。
Results of the study indicated that the dominant biotype of the BPH collected from Simao, Yunnan, belonged to biotype Bangladesh, the dominant biotype of the BPH collected from Chengdu, Sichuan, had changed from biotype Ⅰ to biotype Ⅱ, the dominant biotype of the BPH collected from the other collecting locations belonged to biotype Ⅱ. Biotype Bangladesh of the BPH has taken some proportions in Nanning, Lingchuan, Guangxi and Jiangpu, Jiangsu, but none has been found in Chengdu, Sichuan. As for the variety which was resistant to biotype Ⅱ, the proportion of the biotype Bangladesh increased. The virulence of the BPH collected from different locations was divided into two groups by FUZZY Clustering method: one group included Simao, Yunnan, another group included Nanning Lingchuan Longzhou, Guangxi; Xinhui, Guangdong; Chengdu, Sichuan; Jiugongshan Jianli, Hubei; Huaining, Anhui; Jiangpu, Jiangsu.
出处
《西南农业大学学报（自然科学版）》
CSCD
1998年第5期427-431,共5页
Journal of Southwest Agricultural University
基金
"九五"国家重大科技攻关计划资助
关键词
褐飞虱
生物型
致害性
品种
rice plant hoppers
biotype
virulence
