阜新地区主要杨树品种抗寒抗病虫性研究

Cold-Resistant and Pest Resistance of Main Populus spp. in Fuxin Region

采用标准地调查法,对阜新地区保存面积较大的6个杨树品种的抗寒和抗病虫性(病害主要调查溃疡病和冠瘿病,虫害主要是杨干象)进行比较分析。结果显示:(1)抗寒能力,6个杨树品种只有冻害轻微,不影响树木正常生长和材质,且品种间差异不显著;(2)抗病虫能力,中荷64和中绥12抗病虫性最强,溃疡病发病率和感病指数从高到低依次为小钻杨>群众杨>黑林1号>哲林4号;小钻杨和群众杨的冠瘿病很严重,其他品种未发现;黑林1号杨干象危害非常严重,达到了毁林的程度,小钻杨、群众杨、哲林4号发现杨干象虫株,但不影响树木正常生长和材质。

The cold disease resistance of six Populus spp.with large area of preservation in Fuxin area were analyzed by standard survey method.The main investigation of Botryosphaeria ribis,Agrobacterium tumefactions Cryptorhynchus lapathi were analyzed.Result shows that：（1）in terms of cold resistance,six Populus spp.only slightly damaged by freezing injury,did not affect the normal growth of trees and material,and the difference between varieties is not significant;（2）in terms of resistance to pests and diseases,the disease resistance and pest resistance of Populus‘Zhonghe 64＇and Populus‘Zhongsui 12＇are the strongest.Botryosphaeria ribis：Populus×Xiaozhuanica W.Y.Hsu et L.cv.Zhangwu 〉P.simonii×P.pyramidalis＋Salix matsudana cv.〉（Populus simonii×P.nigra）×P.15 ACL ‘Heilin 1＇〉 P.‘Zhelin 4＇.Agrobacterium tumefactions of Populus×Xiaozhuanica W.Y.Hsu et L.cv.Zhangwu and P.simonii×P.pyramidalis＋Salix matsudana cv.is very serious,other varieties are not found.Cryptorhynchus lapathia endangerd（Populus simonii×P.nigra）×P.15 ACL ‘Heilin 1＇seriously.Insects were found in Populus ×Xiaozhuanica W.Y.Hsu et L.cv.Zhangwu,P.simonii×P.pyramidalis＋Salix matsudanacv.and P.‘Zhelin 4＇,but they didn＇t affect the normal growth of trees and materials.