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

作　　者：沙红 孙曼 郭小龙 杜坤 SHA Hong;SUN Man;GUO Xiaolong;DU Kun(Xiaolongshan Fordest Research Institute of Gansu Province,Tianshui Gansu 7410222,China;Gansu Province Key Laboratory of Secondary Forest Cultivation,Tianshui Gansu 7410222,China;Xiaolongshan Forest Ecosystem National Observation and Research Station,Tianshui Gansu 741022,China)

机构地区：[1]甘肃省小陇山林业科学研究所,甘肃天水741022 [2]甘肃省次生林培育重点实验室,甘肃天水741022 [3]甘肃小陇山森林生态系统国家定位观测研究站,甘肃天水741022

出　　处：《甘肃林业科技》2021年第4期17-20,共4页Journal of Gansu Forestry Science and Technology

基　　金：甘肃省科技计划项目“珍贵树种水楸种质资源优势基因挖掘与良种选育”(20YF3NA010)。

摘　　要：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.

关 键 词：小陇山 水曲柳 家系 苗期选择 

分 类 号：S792.990.5[农业科学—林木遗传育种]