摘要
应用连续选择、独立标准法、指数选择、约束指数和文中提出的主分量选择，对毛白杨无性系生长量、通直度、冠幅和抗天牛进行多性状选择，提出了毛白杨主要性状经济权重的确定方法，选出了可望成为建筑材、纸浆材、胶合板材、抗天牛新品种的优良无性系．
Multi-trait selection about growth, stem straightness, crown width andpest-resistence on P. tomenlosa was studied by using continuous selection, independentstandard selection, index seletion, restrained index seletion and principal componentseletion were proposed in this paper.The economic weight of different traits inP. tomentosa were determined, and desired clones which would be new varities of architectural wood, pulp--paper wood, plywood and pestresistence were selected.
出处
《西南林学院学报》
CAS
1998年第3期137-142,共6页
Journal of Southwest Forestry College
基金
国家"八五"攻关毛白杨选育研究项目
关键词
毛白杨
多性状选择
经济权重
无性系
主分量选择
P.tomentosa
Multi-trait selection
Economic weigth
Index selection
Index selection with restriction
Principal component selection
