Indicated that T-DNA of Ri plasmid had already been combined into in the regeneration plant91% of transgenic plant of the triploid Chinese white poplar leaf showed winkle symptom compared with the contrast , the others grew normally.

• 三倍体毛白杨的转基因植株与对照相比,91%25的植株都发生了叶片皱缩,9%25转化植株叶片生长正常,转化植株的叶片均在MS_0具有自发根的特性。