摘要
以吉林汪清县林业局国家红松良种基地内35年生红松半同胞家系子代测定林为研究对象,对46个家系的树高、胸径、材积、冠幅4个性状进行差异性比较与遗传变异分析,根据遗传测定结果进行优良家系与单株选择。结果表明:胸径、材积家系间差异显著,生长性状家系间与家系内均存在较为丰富的变异,为性状的遗传改良提供了较好的基础。相较于其他性状,材积具有更高的表型变异系数与遗传变异系数,人工选择可获得更大的遗传进展。树高、胸径、材积、冠幅家系遗传力分别为0.2026、0.3408、0.3523、0.2278;生长性状间表型相关与遗传相关均表现为正相关关系,胸径与材积极显著相关。因此,以材积性状表现及育种值估算结果为主要评价指标,最终筛选出红松生长性状优良家系3个,优良单株150株。
Taking the 35-year-old Pinus koraiensis half-sib family progeny test forest in the National Korean Pine Improved Variety Base of Wangqing Forestry Bureau in Jilin Province as the research object,this study conducted a comparative analysis of differences and genetic variation on four traits:tree height,breast-height diameter(DBH),timber volume,and crown width among 46 families.Based on the results of genetic testing,superior families and individual trees were selected.The results showed that there were significant differences in DBH and timber volume among families,and there were relatively rich variations in growth traits within and between families,providing a good basis for genetic improvement of traits.Compared with other traits,timber volume had a higher phenotypic variation coefficient and genetic variation coefficient,and artificial selection could achieve greater genetic progress.The heritability of family for tree height,DBH,timber volume,and crown width were 0.2026,0.3408,0.3523,0.2278.The phenotypic and genetic correlations among growth traits were positively correlated,and the correlation between DBH and timber volume reached a very significant level.Based on the above analysis results,timber volume performance and estimated breeding values were used as the main evaluation indicators,and finally,3 superior P.koraiensis families and 150 superior individual trees were selected.
作者
贾庆彬
姚旭东
周博
于宏影
李艳霞
邓继峰
Jia Qingbin;Yao Xudong;Zhou Bo;Yu Hongying;Li Yanxia;Deng Jifeng(Jilin Provincial Forestry Biological Control Center Station,Jilin Provincial Academy of Forestry Sciences,Changchun Jilin 130033,China;Wangqing Forestry Branch of Changbai Mountain Forest Industry Group,Yanbian Jilin 133200,China;Harbin Research Institute ofForestry Machinery,National Forestry and Grassland Administration,Harbin Heilongjiang 150086,China;Forestry ResearchInstitute of Heilongjiang Province,Harbin Heilongjiang 150081,China;Shenyang AgriculturalUniversity,Shenyang Liaoning 110866,China)
出处
《西南林业大学学报(自然科学)》
北大核心
2026年第1期8-13,I0002,共7页
Journal of Southwest Forestry University:Natural Sciences
基金
吉林省自然科学基金面上项目(20220101325JC)资助
国家重点研发计划项目子课题(2017YFD0601103-01)资助。
关键词
红松
生长性状
遗传变异
优良家系
良种
Pinus koraiensis
growth trait
genetic variation
superior family
elite germplasm
