毛白杨无性繁殖方法虽多,但由于种条不易生根,育苗困难,繁殖率很低。采用埋条法育苗,一根2米多长的种条,一年仅能繁殖1.5—2个苗木。用插条法育苗,一年最多也只能繁殖5个苗木。我所从1978年开始,连续进行了毛白杨单芽育苗法的试验研究,取得了可喜的成果。一般一根2米多长的种条一年可繁殖30个苗木。1979年我们 Although there are many methods of clonal propagation of Populus tomentosa, they are not easy to root, seedling raising is difficult, the reproduction rate is very low. Buried method using buried law, a 2 m long species, only breeding 1.5-2 a year seedlings. Seedling nursery with law, the maximum can only reproduce five seedlings a year. Since 1978, we have carried out the experimental research on the single bud nursery method of Populus tomentosa and achieved gratifying results. Generally a 2 m long planter can breed 30 seedlings a year. 1979 us