摘要
通过环割及芽体涂抽枝宝、发枝素等措施，研究了促进矮化香椿园幼树休眠芽萌发和成枝的作用，证明以芽体涂发枝素的综合效果最好。用喷施或土施的方法研究了ＰＰ３３３对香椿播种苗和幼树生长的影响。喷施以２５０～５００ｍｇ／Ｌ为宜，土施可达５００ｍｇ／株。
Band girdling, spreading buds with shoot growth accelerator solutions were testedin this study to find out their effects on accelerating doimant bud sprouting and branch for-mation in dwarf Chinese toona orchard. The results showed that spreading the buds withshoot growth accelerator solution was superior. Meanwhile, the effect of PP333 on the growthof seedlings and young trees were researched.It was found out that PP333 of 250～500mg/ Lsolution used to spray plants,and that of 500mg / plant applied to soil were optimum.
关键词
香椿
休眠芽萌发
新梢生长
发枝素
多效唑
Chinese toona
sprouting of dormant bud
growth of tender shoot
band girdling
PP333
