摘要
本文总结４０年毛白杨各种繁殖方法的利弊，根据北京林业大学已鉴定的“根段促萌，以根繁苗”的方法，提出了一种新型的毛白杨良种繁育体制毛白杨多圃系列育苗新体制、它圆满地解决了良繁中苗木数量与质量问题。利用苗木根萌条永远年幼这一特点，采用多圃配套，即采穗圃、砧木圃、根繁圃、繁殖圃有机结合，繁殖苗木，苗木不因繁育世代的推进而老化，具有幼年性、速生性和一致性，且繁殖系数有一质的飞跃，每年可扩繁数万倍，已超过组培水平，且方法简便而新颖。
According to method which was identified before (Sprouting promoted with pieces of root,Seedlings Propagated by root),we established a new system of serial seedlings production of POPULUS TOMENTOSA with several vegetative propagation nurserys when we summarized adventages and disadventages of various propagation of P.tomentosa in the past 40 years.Compared with propagation system in the past,it more perfectly sovled the problem of quantity and quality of seedlings.Seedlings propagated by root changed style of propagation that seedlings were propagated by seedlings,so the juvenility of this kinds of seedlings can be existed forever,Through combination of scion plucking nursery,stock producing nursery,propagation by rooting nursery and propagation nursery,quanities of seedlings are increased astonishingly.This method is not only single and novel,but also economical and efficient.The propagation coefficient exceeds the level of tissue culture.
基金
林业部85国家科技攻关课程
关键词
毛白杨
良种
繁育
采穗圃
砧木圃
根繁圃
POPULUS TOMENTOSA
Propagation of improved varieties
Scion plucking nursery
Stock producing nursery
Propagation by root nursery
Propagation nursery
