森林与环境学报2024，Vol.44Issue(3)：274-282,9.DOI:10.13324/j.cnki.jfcf.2024.03.007
浙江红花油茶实生群体性状变异及综合评价
Comprehensive analysis of the phenotypic variation among seedling populations of Camellia chekiangoleosa
摘要
Abstract
In this study,seedling populations of Camellia chekiangoleosa were analyzed to investigate their phenotypic variation,screen for superior individuals,and strengthen the conservation of genetic resources for breeding utilization.Variation,correlation,regression,and path analyses were performed on important economic traits.Principal component analysis as well as the subordinate function value and multidimensional coordinate synthetic evaluation methods were used to select the superior individuals.The results showed high phenotypic variation among the individual plants,with the coefficient of variation of 25 traits being 5.74%-57.16%and the diversity index being 1.934 6-2.095 9.The regression analysis revealed that the number of fruits,fresh seed weight per fruit,dry kernel weight per fruit,and kernel oil content were the key phenotypic traits affecting oil yield per plant.The path analysis identified the dry kernel weight per fruit as the main decision variable and the number of fruits as the main limiting variable.With principal component analysis,the 25 traits were transformed into 6 main principle components with a cumulative contribution rate of 86.557%.Nine superior individuals were screened out by using the above three methods.In conclusion,the high phenotypic variation among seedling populations of C.chekiangoleosa provides a material basis for the breeding of new high-yielding and high-quality varieties.关键词
浙江红花油茶/实生群体/表型性状/通径分析/主成分分析/优良单株Key words
Camellia chekiangoleosa/seedling population/phenotypic traits/path analysis/principal component analysis/superior individual分类
农业科技引用本文复制引用
李佳妮,吴美珍,李煜,叶玲,陈世品,陈辉..浙江红花油茶实生群体性状变异及综合评价[J].森林与环境学报,2024,44(3):274-282,9.基金项目
福建省林木种苗科技攻关七期项目"油茶种质资源收集评价与创新利用"(ZMGG-0702) （ZMGG-0702）
福建省种业创新与产业化工程(2021-2025)林业项目"油茶种业创新与产业化开发"(ZYCX-LY-202103) （2021-2025）
福建农林大学林学高峰学科建设项目(72202200205). （72202200205）
