摘要
在山西省辽东栎天然分布区采集20个不同种源的辽东栎种子进行育苗,对其3年生苗进行生长性状分析及遗传参数估算。结果表明,不同种源辽东栎3年生苗的苗高、地径差异均达极显著水平。其苗高、地径的遗传力分别为0.8102、0.8013,按25%的入选率,从20个种源中选出20号、6号、16号、11号和3号5个种源为山西最优种源。入选的5个辽东栎优良种源苗高、地径的遗传增益均值分别为18.18%、18.28%,遗传进度均值分别为14.31%、14.53%。
The seeds of Quercus liaotungensis from 20 different provenances were collected in the natural distribution area of Shanxi province to breed seedlings,the growth traits were analyzed and genetic parameter were estimated with 3-year-old seedlings as the material.Results showed that the 3-year-old seedlings of Quercus liaotungensis from different provenances were significantly different in seedling height and ground diameter.The heritability of seedling height and ground diameter were 0.8102 and 0.8013 respectively.5 provenances(No.20,No.6,No.16,No.11 and No.3)were selected from 20 provenances according to the selection rate was 25%,which were the best provenances in Shanxi province.The average genetic gain of seedling height and ground diameter of 5 elite Quercus liaotungensis provenances were 18.18%and 18.28%respectively,and the average genetic progress were 14.31%and 14.53%respectively.
作者
郭翠萍
Guo Cuiping(Shanxi Academy of Forestry and Grassland Sciences,Taiyuan 030012,China)
出处
《山西林业科技》
2023年第4期39-42,共4页
Shanxi Forestry Science and Technology
关键词
辽东栎
种源
遗传力
遗传增益
Quercus liaotungensis
Provenance
Heritability
Genetic gain
