【摘要】 山杨是一个分布广泛的速生次生林树种,研究其无性更新具有生产意义。山杨无性更新有两种:一种是萌芽更新;另一种是根蘖更新。山杨萌芽力很弱,无生产意义;山杨根蘖力很强,我国一般均采用根蘖更新。本文主要研究根蘖更新规律,供生产参考。更多还原

【Abstract】 Asexual regeneration of Chinese aspen is either by sprout or by rootsu-cker.But it is not easy for aspen to sprout, so sprout is not dependable for practical purpose.On the other hand, good many suckers are often found from its roots .Because of this, root suckers are commonly used for its regeneration in China.Growth of the root suckers with respect to the root system of the mother tree, in relation to the final cutting, and its fate of growth were discussed.更多还原