摘要
调查5个杨树品种对杨锦纹吉丁虫的抗性。用模糊类聚分析法可把它们分为4类。白城杨2号抗性最强，小黑杨抗性较强，小叶杨和加青杨抗性较差，中东杨抗性最差。
The resistance of five variety of poplars to Poecilonota variolosa Paykull were investigated. They Was divided four types by the fuzzy clustering analysis. For resistance to this pest insect, from strong to weak they were in sequence: 1. Populus xbeichenesis Bai-Lin 2#; 2. Populus timonii Garr. ×Populut nigra L,; 3. Populus canadensis Moench×Populus cathayana Rehd and Populus simonii Garr. 4. Populus berolinensis Dipp..
出处
《昆虫知识》
CSCD
1994年第5期287-289,共3页
Entomological Knowledge
关键词
杨锦纹吉丁虫
杨树
抗性
Poecilonota uariolosa Paykull, poplars, the resistance, fuzzy clustering analysis
