热带亚热带植物学报2025，Vol.33Issue(3)：253-260,8.DOI:10.11926/jtsb.4883
福建杉木家系在广东的多地点生长变异和筛选
Multi-site Growth Variation and Selection of Fujian's Chinese Fir Families in Guangdong
摘要
Abstract
To promote the process of the advanced-generation breeding program of Chinese fir(Cunninghamia lanceolata)in southern China synergistically,the growth variation of Chinese fir family(3rd generation family),introduced from Fujian,was analyzed and selected based on the regional assay at 8 years old at multiple sites in Guangdong,jointly conducted by Guangdong and Fujian Chinese Fir Genetic Improvement Cooperation Group.The results indicated that the tested families showed good adaptability even in Guangdong,and the overall growth level was similar to that of the improved variety of second-generation Chinese fir seed orchard of Guangdong.However,there were significant differences in growth traits among families.Moreover,the family heritability of tree height,diameter at breast height and single tree volume was consistently above medium level,reaching 0.415,0.338,and 0.308,respectively.Furthermore,there was significant positive genetic correlations among growth traits.Briefly,these would provide a possibility for the selection of better families than the improved variety of second-generation seed orchard of Guangdong.By comprehensive evaluation,thirteen super Chinese fir families of Fujian including five multi-site fast growing ones and 8 region-specific fast growing ones were identified,of which families F3,F13,F21 and F28 consistently realized a volume gain over 10%(11.48%-19.32%),indicating a breeding potential for application in the future.关键词
杉木/遗传改良/引种/速生Key words
Cunninghamia lanceolata/Genetic improvement/Introduction/Fast-growing引用本文复制引用
王润辉,韦如萍,晏姝,黄荣,郑仁华,郑会全..福建杉木家系在广东的多地点生长变异和筛选[J].热带亚热带植物学报,2025,33(3):253-260,8.基金项目
国家重点研发计划项目子课题(2022YFD2200201-6)资助 This work was supported by the National Key Research and Development Plan Project sub-subject(Grant No.2022YFD2200201-6). （2022YFD2200201-6）
