摘要
山杨种内存在明显的变异类型。它们在形态特征、生长速度、木材品质以及过氧化物同工酶等方面都存在差异,这给良种选育提供了基础。
The traspecific varities of populus davidiana significantly exist. They differ from each other in morphological Characteristics, increment speed,wood quality, peroxideisozyme etc. These provide the stock breeding foundation.
关键词
山杨
种内变异
叶
生长特性
木材品质
同工酶
Populus davidiana
intraspecific variation
wooq puality
isozyme
increment characteristic
