不同杨树品系对青杨天牛抗性的分析  

Analysis on Resistance of Different Populus Strains to Saperda populnea

作　　者：孙守慧[1] 高长启[1] 任晓光[1] 张忠辉[1] 宋福强[1] 张怡[1] 王凤林 李殿锋 王立东 

机构地区：[1]吉林省林业科学研究院,吉林130031 [2]白城林科院 [3]双辽林业局

出　　处：《东北林业大学学报》2002年第5期77-79,共3页Journal of Northeast Forestry University

摘　　要：对吉林省西部三北防护林的主要蛀干害虫青杨天牛 (Saperdapopulnea)近 5年发生的初步情况进行了一系列调查和研究 ,结果显示 :杨树品系白林 2号在白城地区 ,白城 41和辽杂 2号在双辽地区以及白林 3号和引进的新品系 392 0在松原地区是抗青杨天牛的优良杨树品系 ;同时确定了 3年生、6年生和 1 2年生的小×黑青杨天牛的发生量差异极显著 ,6年生的青杨天牛发生最重 ,其次为 3年生 ,1 2年生危害较轻 ;青杨天牛在树冠的垂直分布上差异显著 ;树冠的上层受害最重 ,中层略轻 。The results of investigating and researching on primary situation of occurrence of Saperda populnea , the main borer pest of Three North protection reforestation in western Jilin, showed that Populus ×' Bailin -2' in Baicheng, Baicheng 41 and Liaoza 2 in Shuangliao, P . ×' Bailin -3' and a new introduction of P .×3902 in Songyuan were all excellently resistant to Saperda populnea. Population of S. populnea was remarkably different between Populus × simonigra chon-lin of 3 years, 6 years and 12 years of age. The population was the most in stands of 6 years of age, was more in stands of 3 years of age, but is little in stands of 12 years of age. There was difference in vertical distribution on the crowns. Upper crown was injured most severely, then middle crown, and low crown was injured most slightly.

关 键 词：杨树 品系 青杨天牛 抗性 树冠分布 

分 类 号：S763.7[农业科学—森林保护学]