小陇山水曲柳19个家系苗期选优

The Preferred Selection of 19 Families of Fraxinus mandshurica at Seedling Stage

通过对小陇山林区水曲柳19个家系和1个辽宁家系的苗期,9株小区、4次重复的对比试验表明;苗高和地径家系间差异均有统计学意义(p<0.05),综合优选家系为19号、6号,其2 a生苗高分别为参试家系平均苗高的125.5%、113.0%,地径为135.6%、130.8%。

Through the seedling period of 19 family and 1 Liaoning family in Xiaolongshan forest area,the comparative experiment of 9 strains of community and 4 repetitions showed that,there were significant differences in seedling height and ground diameter among families (p < 0.05).The comprehensively selected families were No.19 and No.6.The seedling height of the two-year-old families were 125.5% and 113.0% of the average seedling height of the tested families,and the ground diameter was 135.6% and 130.8% respectively.