【摘要】 对 8 9个黑杨无性系进行苗期试验测定 ,结果表明 ,大多数黑杨无性系适合在河南地区栽植 ,造林当年多数成活率在80 %以上 ,不同无性系之间胸径和树高生长差异极显著 ,具有明显的遗传变异 ,遗传变异系数分别为 10 16 % ,8 5 7% ,对胸径和苗高的生长进行多重比较 ,选出 79- 35 ,79- 38两个优良无性系更多还原

【Abstract】 Nursery testing of 89 Aigeiros clones is conducted Results show thatmost of the clones are suitable for Henan zone,and current survival rate is above 80% The difference of growth among clones is significant, and genetic variation is very evident, coefficient of genetic variation is 10 16%,8 57%,respectively The clones of 79-35 and 79-38 are selected by multiple comparisons of diameter and height.更多还原