安徽省林业科学研究所主持的“中皖1号等五个杨树优良无性系选育研究”项目2003年4月2日在省林科所顺利通过省林业厅科技处组织的专家鉴定。中皖1号等五个杨树优良无性系具有理想的综合性状,与对照Ⅰ—69杨相比,材积生长量超过11.8—61.5%、育苗成活率提高5.5%、造林成活提高10.1%;材积生长量超过中涡1号杨13.2—56.1%;树干通直圆满,顶端优势明显,木材纤维长度、宽度、壁腔比均达到造纸要求,8年生以上树木完全满 Anhui Province Forestry Research Institute presided “China and Anhui No. 1 and other five poplar fine clonal selection ” project April 2, 2003 in the provincial forestry institute passed the provincial Forestry Department of Science and Technology Office of the experts identified . Zhongyang 1 and other five poplar fine clones had the ideal comprehensive characters. Compared with the control I-69, the volume growth of the poplar exceeded 11.8-61.5%, the seedling survival rate increased by 5.5% and the afforestation survival increased by 10.1% The growth of the tree was over 13.2-56.1% of that of middle vortex No.1. The tree trunk was straight and full, and the superiority of the top was obvious. The length, width and wall cavity ratio of wood fiber all reached the papermaking requirements. The trees above 8 years old were completely full