摘要
经10年在华北各省市田间试验和室内抗病测试证明:中林-115、中林-379、中林-34是抗干部溃疡病(Dothiorella gregaria)和叶部黑斑病(Marssonina brunnea)的杨树新品种,比北京杨、Ⅰ-214等有显著的抗病力,比群众杨降低溃疡病发病率80％～100％,比加杨、Ⅰ-214和P15A降低黑斑病发病率80％以上,并对杨树的其它病虫如天牛等,也有较强的抗性。它们也是华北地区速生、优质、繁殖易、成活高、适应性强的杨树良种,现正在大量推广使用。
In 1981~1990, the resistance trials both in the field and lab. in North China demonstrate that poplar cultivars, Zhonglin-115, Zhonglin-319, Zhoiiglin-34 are new ones, which are resistant to poplar trunk cancer, Dothiorella gregaria, and leaf black spot, Marssonina brunnea. They are more resistant than P. bcijingensis and I-214. Their incidence rate of trunk cancer is 80 %~100 % lower than that of P. 'popularis', and that of black spot is 80% lower than that of P. x canadensis, I-214, Pl5A. They are also rather resistant to other diseases and insect pests, such as, the longhorn beetle etc. They are also fine improved cultivars of fast-growing, high quality, easy propagation, high survival rate and adaptability and they have been extending on a large scale.
出处
《林业科学研究》
CSCD
北大核心
1992年第4期423-428,共6页
Forest Research
关键词
抗病性
溃疡病
黑斑病
杨树
品种
new poplar cultivars resistance Dothiorella gregaria Marssonina brunnea
