天山云杉大龄母株穗条扦插试验陈国欣，陈静梅，陶永海，燕美玉为了保持云杉优良无性系的良种特性，用扦插方法繁殖云杉优树无性系是最好的方法。但云杉是难生根树种，尤其大龄母株穗扦插生根率很低，目前尚达不到生产应用水平。为了提高天山云杉大龄母株穗的扦插生根率，... Cutting Test of Spike of Tianshan Spruce Oldenstown Parental Plants Chen Guoxin, Chen Jingmei, Tao Yonghai, Yan Meiyu To breed elite spruce elite varieties, it is the best method to propagate spruce superior tree clones by cutting method. However, spruce is a hard rooting tree species, in particular, elder parent plant cuttings rooting rate is very low, is still below the level of production and application. In order to improve the Tianshan spruce older parent cutting rooting rate, ...