对泡桐无性系毛白３３ 二年生幼树接干生长测定分析结果表明：接干苗木较未接干苗木能明显促进苗高为３０ 及３５ｍ 的泡桐幼树的高生长，促进苗高为４５ 及５０ ｍ 的泡桐幼树胸径生长，为培育泡桐高干良材提供了理论依据 The results of the analysis of the annual growth of the second year seedling of Paulownia 33 clone showed that the higher growth of young Paulownia saplings with seedling height of 30 and 35m than that of the non-stem seedlings, The diameter growth of DBT saplings at 45 and 50 m provided the theoretical basis for the cultivation of Paulownia involucrata