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毛白杨育苗的方法很多,但都有其不足之处,播种育苗分化较大,加之采种母树分布不均,结实率低,不易采到种子;扦插育苗难生根,成活率也不稳定,当前我县主要采用嫁接法繁殖毛白杨。为了加快培育毛白杨苗木的速度,我们在过去的嫁接法的基础上,从1981年开始,试验了一种新的快速繁殖法——毛白杨春季插穗嫁接法。1983年用此法嫁接,成活率达92.3％,当年苗高平均2.53米,最高株达3.79米(见照片一、二)。现将试验情况简介如下,供参考。
There are many ways to cultivate Populus tomentosa, but all have their shortcomings. The seedling is more differentiated and the unequal distribution of mother trees is low. The seed setting rate is low and the seed is hard to be harvested. The county mainly uses the grafting method to breed Populus tomentosa. In order to speed up the cultivation of Populus tomentosa seedlings speed, we based on the past grafting method, starting from 1981, tested a new rapid propagation method - poplar spring cuttings grafting method. In 1983, the method of grafting, the survival rate of 92.3%, when the average height of 2.53 meters, the highest strain of 3.79 meters (see photos one or two). The test situation is as follows, for reference.