摘要
通过对大叶山杨无性系进行的苗期和林期测定，初步选择了11个优良无性系，其中最优无性系为28#和30#，其树高和胸径遗传增益分别达到16．38％和18．85％．大叶山杨无性系采用多系混合并与针叶树混交造林，造林后修枝和病虫害防治是成林的关键．
11 excellent clones of Populus davidiana Var. Macrophylla were preliminarily selected on the basis of measurements on seedings and stands. Among the 11 excellent clones, No. 28 and 30 are superior to others. Their genetics gains in average height and diameter are 16.38 % and 18.85 respectively. Selecting clones were afforested with other clones and coniferous species. Pruning and pest and disease control are keys to forest.
出处
《北华大学学报（自然科学版）》
CAS
2006年第5期460-463,共4页
Journal of Beihua University（Natural Science）
基金
吉林省林业厅重点支持项目(吉林科合字第96-017号)
关键词
大叶山杨
无性系
选择
遗传增益
Populus davidiana Var. Macrophylla
Clone
Selection
Genetic gain
