红松全同胞家系子代早期生长评价及选择  

Evaluation of Early Growth and Selection of Offspring in Pinus koraiensis Full-sib Families

作　　者：吴昊晟 武威 胡兴国 杨东海 吴蕴洋 杨玲[1] WU Haosheng;WU Wei;HU Xingguo;YANG Donghai;WU Yunyang;YANG Ling(College of Forestry,Northeast Forestry University,State Key Laboratory of Tree Genetic and Breeding,Harbin,150040,China;Changbaishan Forest Industry Group,Wangqing Forestry Branch,Wangqing 133200,China)

机构地区：[1]东北林业大学林学院,林木遗传育种全国重点实验室,哈尔滨150040 [2]长白山森林工业集团汪清林业分公司,吉林汪清133200

出　　处：《森林工程》2024年第5期94-102,共9页Forest Engineering

基　　金：国家重点研发项目(2017YFD0600606)。

摘　　要：为了对红松早期生长进行初步评价并选择优良家系,以长白山森林工业集团汪清林业分公司亲和种子园控制授粉获得的117个全同胞家系苗木为研究对象,在亲和种子园91林班4小班营建子代测定林后连续3 a观察其生长情况,并进行综合评价。6~8 a的红松全同胞家系子代苗的苗高、地径在家系间差异达极显著水平,且家系与区组间的交互作用达极显著水平(P<0.01);6 a平均苗高为39.79 cm,到8 a时年平均增长率为25%,6 a平均地径为11.11 mm,到8 a时平均年增长率为34%,各性状表型变异系数变化范围为15.84%~25.43%;各性状的遗传力较高,有利于家系的进一步选择评价。利用布雷金多性状综合分析法进行优良家系选择,以20%的基准在117个家系中选择24个优势家系。利用生长性状初选出的优良家系,可以为更新种子园世代、促进红松优育扩繁提供基础。In order to preliminarily evaluate the early growth of Pinus koraiensis and select excellent families,taking 117 full-sib family seedlings obtained by controlled pollination in the Affinity Seed Garden of Wangqing Forestry Branch of Changbaishan Forest Industry Group as materials,we observed their growth for three consecutive years and conducted a comprehensive evaluation after establishing a progeny measurement forest in the Affinity Seed Garden in the 91st forest class,class 4.The differences in seedling height and ground diameter of the offspring of P.koraiensis full-sib family lines from 6 to 8 years old were highly significant among family lines,and the interaction between family lines and district groups was highly significant(P<0.01);the average seedling height at 6 years old was 39.79 cm,the average annual growth rate at 8 years old was 25%,the average ground diameter at 6 years old was 11.11 mm,the average annual growth rate at 8 years old was 34%,and the phenotypic coefficient of variation of each trait ranged from 15.84%to 25.43%.The heritability of each trait was high,which was conducive to the further selection and evaluation of the family line.Using the Breggin multiple trait analysis method to select superior family lines,24 superior family lines were from 117 familes with a benchmark of 20%.The excellent family lines selected by growth traits can provide the basis and materials for renewing the seed orchard generation and promoting the superiority and expansion of P.koraiensis.

关 键 词：红松 生长性状 全同胞家系 遗传力 优良家系选择 

分 类 号：S791.247[农业科学—林木遗传育种]