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我们从1962年开始研究杨树育种问题,先后搞过杂交育种、嫁接蒙导,但由于林木生长的长期性,见效较慢。1972年开始,我们转搞优良类型的选择,与此同时,又利用毛白杨实生苗后代分离现象,期望从不同来源方面,建立无性系繁殖圃,以选育出更加适合我省生长的良种毛白杨。本文是近年来我们在选种工作中用过的一些方法和若干实际资料,为了普及良种选择技术,把它整理出来,供各地同志参考。
We started from 1962 on poplar breeding problems, has engaged in cross breeding, grafting guide, but due to the long-term growth of trees, the effect is slower. Starting in 1972, we switched to good type of selection, meanwhile, we took advantage of the separation of male offspring of Populus tomentosa. We hope to establish breeding clones of clones from different sources so as to breed good varieties of hair that are more suitable for the growth of our province poplar. This article is some methods and some actual data that we used in the selection work in recent years. In order to popularize the technology of selecting elite seeds, it is sorted out for the reference of all local comrades.