密度、遮阴、摘芽控制对紫椴幼苗干型匍匐的影响

Effects of Density,Shading and Bud Picking on Dry Creeping of Tilia amurensis Seedlings

以紫椴1年生实生苗为研究对象,设置密度(高密度,低密度)、遮阴(轻度遮阴,重度遮阴)和摘芽3种处理,连续两年对苗木的苗高、地径、分枝数和分枝角进行测定。研究结果表明,适当加大留床密度、轻度遮阴以及摘掉部分苗木侧芽显著减小了紫椴苗木的分枝数和分枝角,有效控制了紫椴苗期干型匍匐,且不影响苗高和地径的增长。

In this study,one year old seedlings of Tilia amurensis were taken as the research object,and three treatments were set,density,shading,and bud picking.The seedling height,ground diameter,number of branches and branch angle of seedlings were measured for two consecutive years.The results showed that the branch number and branch angle of Tilia amurensis seedlings could be significantly reduced by increasing the density of the seedbed,shading slightly and removing part of the lateral buds,and there was no effect on the height and diameter of the seedlings,therefore,the above treatment can effectively control the dry creeping of Tilia amurensis seedling stage.