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毛白杨是我国特有的树种,也是北京地区植树造林的主要树种之一。需求量较大,采用扦插繁殖方法较为简便,但成活率低,因而苗木不能满足生产的需要。为解决此问题,从1976年开始我们对提高毛白杨扦插成活率的技术措施进行了研究,三年来取得了一定的效果,使扦插成活率由10％提高到56～74％。现将技术措施总结如下:
Populus tomentosa is endemic to China and is also one of the major tree species afforestation in Beijing. Large demand, the use of cutting propagation method is more convenient, but the survival rate is low, so seedlings can not meet the production needs. In order to solve this problem, we started to study the technical measures to improve the survival rate of Populus tomentosa cuttings from 1976, and achieved some results in the past three years, raising the survival rate of cuttings from 10% to 56 ~ 74%. The technical measures are summarized as follows: