杨树新品种(品系)抗病虫性调查分析

Pest Resistance of New Varieties (Strains) of Poplar

通过对松嫩平原地区多点区域化试验及示范林杨树新品种(品系)病虫害调查发现,造成严重干部危害的为破腹病和杨干象。对错海林场和富裕林场各参试品种(品系)抗破腹病及抗杨干象能力调查数据进行方差分析和多重比较,结果表明:抗病虫能力较强的品种(品系)有银中杨、龙丰1号、龙丰2号、小黑杨、黑青杨、N46、98-62-75、A5和欧黑×青7#,杨干象危害轻微(注意防治即可)的有A5-10、1015和2111,小黑杨和青山杨应避免在地势低洼地块造林。

Pest and disease of new varieties （strains ） in demonstration forest and multi-pointed regional test in Songnen Plain were investigated ;it was found that rupturing venter disease and Cryptorrhynchus lapathi caused se-rious harm to branches .Analysis of variance multiple comparison for investigation data of various varieties （strains） which are resistant to rupturing venter disease Cryptorrhynchus lapathi in Cuohai Forest Farm and Fuyu Forest Farm were conducted .Result shows that ：varieties （strains） which have strong pest-resistance are ：Populusalba＆#215; P.berolinensis,Populus deltoides＆#215; P.simonii ‘LongFeng-1’,Populus deltoides＆#215; P.simonii‘LongFeng-2’ ,Populus simonii ＆#215; P . nigra ,Populus euramericana‘N3016’ ＆#215; P . ussuriensis ‘HQ-1’ ,Populus nigra ,Populus deltoides ＆#215; P .simonii ,A5 ,Populus nigra ＆#215; P .cathayana;Populus deltoides ＆#215; P .suaveolens ,Pop-ulus stalinetz ＆#215; P .suaveolens ,Populus euramericana ＆#215; （Populus simonii ＆#215; P .nigra）have minor damage by Cryp-torrhynchus lapathi ;Populus pseudo-cathayana ＆#215; P .deltoids should avoid planting in low-lying land .