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钻天柳(Chosenia arbutifolia A·Skv)是杨柳科钻天柳属唯一的一个种,属于国家三级保护树种.产于东北大小兴安岭、长白山林区,朝鲜、日本、前苏联远东地区也有分布.该树种树干通直、速生、纹理直、结构细、纤维长,供建筑、家具、矿柱、造纸等用.钻天柳播种育苗和无性繁殖都比较困难,为加速繁殖这个树种,我们开展了钻天柳的硬枝扦插试验,现将试验初步结果报告如下。
Chosenia arbutifolia A. Skv is the only species of the genus Salix, which belongs to the national tertiary protection tree species, and is also distributed in the Greater Xing’an Mountains and Changbai Mountain forests in Northeast China, North Korea, Japan and the Far East of the former Soviet Union. The tree trunk straight, fast growing, straight texture, fine structure, long fiber, for construction, furniture, pillars, papermaking, etc .. Drilling days Liu seeding seedlings and asexual reproduction are more difficult to accelerate the breeding of this species, we carried out Drill day willow hardwood cutting test, the preliminary results of the trial are reported below.