油树(Cornus walteri Waugeu.)又名毛(木耒)、车梁木、椋子木等,是一种综合利用价值较高的木本油料树种。因其种子外皮含有油质,种壳极坚硬,透水性不良,播种育苗比较困难。所以,利用无性繁殖的方法培育油树,也是生产中提出的问题之一。为此,我们于1973—1975年在我所南五台试验站进行了根插繁殖试验,现将初步结果整理如下:一、材料和方法种根采集和贮藏:种根采自本站培育的1年生实生苗。一组在当年12月中旬起苗时从根际剪取整株苗根,随即埋入深60厘米的坑内层积沙藏;另一组于翌春采自留床 Oil tree (Cornus walteri Waugeu.), Also known as hair (mulberry), car beam wood, starlings wood, etc., is a comprehensive utilization of high value woody oil species. Because of the seed coat contains oily, very hard shell, poor water permeability, seeding nursery more difficult. Therefore, the use of asexual breeding of oilseeds is also one of the problems raised in the production. To this end, we in 1973 to 1975 in our South Wutai experimental station for root propagation test, the preliminary results are summarized as follows: First, materials and methods of seed collection and storage: rooted from the site of cultivation of 1 Annual seedlings. One group cut the whole plant seedlings from the rhizosphere at the beginning of December of the same year, and then embedded the inner layer of sediment with a depth of 60 cm. Another group was taken from the bed