文献类型：期刊文献

英文题名：Screening and Site Adaptability Evaluation of Qi-Nan Clones (Aquilaria sinensis) in Southern China

作者：Hu, Houzhen[1,2] Xu, Daping[1] Li, Xiaofei[1] Fang, Xiaoying[1] Cui, Zhiyi[1,3] Liu, Xiaojin[1,3] Hao, Jian[4] Su, Yu[5] Hong, Zhou[1]

第一作者：Hu, Houzhen

通信作者：Hong, Z[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China;[2]Nanjing Forestry Univ, Coll Landscape Architecture, Nanjing 210037, Peoples R China;[3]State Key Lab Efficient Prod Forest Resources, Beijing 100091, Peoples R China;[4]Chinese Acad Forestry, Trop Forestry Expt Ctr, Pingxiang 532600, Peoples R China;[5]Guangzhou Inst Forestry & Landscape Architecture, Guangzhou 510080, Peoples R China

年份：2024

卷号：15

期号：10

外文期刊名：FORESTS

收录：;EI(收录号：20244417285177);Scopus(收录号：2-s2.0-85207505631);WOS:【SCI-EXPANDED(收录号:WOS:001343094900001)】；

基金：This study was funded by the Science Innovation Projects of Guangdong Province (2023KJCX009), the Key Research and Development Project of National Forestry and Grassland Administration (GLM2021-21), the Fundamental Research Funds of Chinese Academy of Forestry (CAFYBB2021QD003-03, CAFYBB2023MB008), Guangxi Forestry Science and Technology Project (2022-02), and Guangzhou Collaborative Innovation Center on Science-Tech of Ecology and Landscape (202206010058).

语种：英文

外文关键词：Aquilaria sinensis; Qi-nan; excellent clones; AMMI model; GGE biplot

摘要：In recent years, plantations of Aquilaria sinensis in China have been dominated by Qi-nan, yet there remains limited research on the growth evaluation and breeding of these clones. In this study, a multi-point joint variance analysis, an additive main effect and multiplicative interaction (AMMI) model, a weighted average of absolute scores (WAASB) stability index, and a genotype main effect plus a genotype-by-environment interaction (GGE) biplot were used to comprehensively analyze the yield, stability, and suitable environment of 25 3-year-old Qi-Nan clones from five sites in southern China. The results showed that all the growth traits exhibited significant differences in the clones, test sites, and interactions between the clones and test sites. The phenotypic variation coefficient (PCV) and genetic variation coefficient (GCV) of the clones' growth traits at the different sites ranged from 16.56% to 32.09% and 5.24% to 27.06%, respectively, showing moderate variation. The medium-high repeatability (R) of tree height and ground diameter ranged from 0.50 to 0.96 and 0.69 to 0.98, respectively. Among the clones, Clones G04, G05, G10, G11 and G13 showed good growth performance and could be good candidates for breeding. Environmental effects were found to be the primary source of variation, with temperature and light primarily affecting growth, while rainfall influenced survival and preservation rates. Yangjiang (YJ) was found to be the most suitable experimental site for screening high-yield and stable clones across the different sites, whereas the tree height and ground diameter at the Chengmai (CM) site were significantly higher than at the other sites, and the Pingxiang (PX) and Zhangzhou (ZZ) sites showed poor growth performance. The findings suggest that Qi-nan clones are suitable for planting in southern China. There were also abundant genetic variations in germplasm resources for the Qi-nan clones. The five selected clones could be suitable for extensive planting. Therefore, large-scale testing is necessary for determining genetic improvements in Qi-nan clones, which will be conducive to the precise localization of their promotion areas.