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毛白杨在我省扦插育苗比较困难,成活率低,尤其是各年份的成活率很不稳定。几年来我们在易县西陵苗圃进行了多种试验,根据生物与环境统一的原理,合理利用自然条件,摸到一点经验。从1976—1979年连续4年插条育苗获得较好的效果,6节插穗平均成活率67.1—82%,生长良好,平均高2.2—2.66米,平均基径1.64—1.92厘米。见下表:
Populus tomentosa cutting propagation in our province more difficult, low survival rate, especially in the survival rate of all years is very unstable. Over the past few years we conducted a variety of tests in Yixian Xiling nursery, according to the principle of unity of biological and environmental, rational use of natural conditions, a touch of experience. From 1976 to 1979 for four consecutive years nursery seedlings get better results, 6 cuttings average survival rate of 67.1-82%, good growth, an average of 2.2-2.66 meters high, with an average base diameter of 1.64-1.92 cm. See the table below: