摘要
核桃微枝嫁接是以组培繁殖的无根小苗(微枝)作接穗,嫁接在核桃幼苗(子苗)砧上,获得无性系良种苗。连续3a对组培快速繁殖微枝、子苗培育及嫁接等技术环节的探索,已初见成效。微枝增殖率1a后为1:1 000以上;最适时期(3月初至4月上旬)的嫁接成活率可达80％;嫁接苗的田间移植保存率在90％以上。核桃微枝嫁接比常规嫁接方法成本低、成苗快,并能在短期内用离体快繁法获得大量新品种穗条。微体嫁接苗以实生砧为根系,比组培自根苗长势旺,易于移植。
The plantlets vitro-propagated were grafted on to 4-week young walnut seedling rootstocks. The procedure of micro-grafting has been developed. In micro-grafting could have several advantages: A large number of scions of new walnut cultivars could be vitro multiplicated in one year; after transplanting, the young grafted plants with a strong rootsystem of seedling rootstock grow more vigorously than self-rooted walnut trees by vitro propagation.
出处
《林业科学研究》
CSCD
北大核心
1992年第5期531-535,共5页
Forest Research
基金
林业部林木种苗管理总站良种繁育处"核桃引种研究"课题
关键词
核桃
嫁接
微枝嫁接
walnut (Juglans regia) micro-grafting vitro-propagation germ
