三倍体毛白杨多圃配套快速育苗技术研究

Technology for fast propagation of triploid Chinese White Poplar by the process of nurseries

三倍体毛白杨采穗圃通过 2次摘心增条每公顷可采饱满穗芽 32 4万个 ;每公顷砧木圃需接穗芽 72 .2万个 ,成活率 92 % ,剪成插穗 6 6 .4万个 ;每公顷成苗圃可出圃优质壮苗 3.6万株。采穗圃、砧木圃、成苗圃的合理面积比为 1∶4 .5∶73。三倍体毛白杨的繁殖系数为 138。

In triploid Chinese White Poplar scion plucking nursery,3 24 million full scion buds could be plucked per hectare by twice top removal.In stock nursery,722 thousard scion buds were grafted per hectare,survival rate reached 92%.664 thousand setts were producted.36 thousand high grade seedlings were dispatched from the plant nursery.The proportion of area of scion plucking nursery,stock nursery,plant nursery is 1∶4 5∶73.The propagation coefficient is 138. The first authors address:Donghai County Technology Guide Station of Forestry and Fruit,Jiangsu Donghai 222300 China