】在室内通过控制病情的方法，进行了杨树灰斑病（ＣｏｒｙｎｅｕｍｐｏｐｕｌｉｎｕｍＢｒｅｓ．）对小黑杨（Ｐｏｐｕｌｕｓｘｉａｏｈｅｉ）苗木生长规律影响的初步研究。通过研究表明：该病造成的生长量损失，并不是每个时段苗高增长率的均一降低，而是扰乱其生长规律，并且在一定生长时期内苗高增长率下降的结果。本文还对受害后生长量表现时间进行了初步分析。 In the laboratory, the effect of Coryneumpopulinum Bres. On the growth of Populus xiaohei seedlings was studied through disease control. The research shows that the loss of growth caused by this disease is not the uniform decrease of the growth rate per season, but the result of disturbing its growth pattern and decreasing the growth rate of the seedling in a certain growth period. This article also made a preliminary analysis of the growth of post-victimization performance time.