文献类型：期刊文献

英文题名：Genetic Parameter Estimates for the Growth and Morphological Traits of Castanopsis hystrix Families and the Genotype × Environment Interaction Effects

作者：Liu, Guangjin[1,2] Tian, Zuwei[1] Jia, Hongyan[1] Shen, Wenhui[3] Li, Zuhe[1,4,5] Tang, Li[1,4,5] Zhao, Hongpeng[1,4,5] Xu, Jianmin[2]

机构：[1] Experimental Center of Tropical Forestry, Chinese Academy of Forestry, Pingxiang, 532600, China; [2] Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, 510520, China; [3] Guangxi Forestry Research Institute, Nanning, 530002, China; [4] Guangxi Youyiguan Forest Ecosystem Research Station, Pingxiang, 532600, China; [5] Youyiguan Forest Ecosystem Observation and Research Station of Guangxi, Pingxiang, 532600, China

年份：2023

卷号：14

期号：8

外文期刊名：Forests

收录：EI(收录号：20233514644205);Scopus(收录号：2-s2.0-85168803783)

语种：英文

外文关键词：Forestry

摘要：Castanopsis hystrix, a timber resource from Southeast Asia, is characterized by rapid growth and high yield, but plantation quality and efficiency improvements are required. Twenty-year-old C. hystrix experimental forests in Yulin, Liuzhou, and Pingxiang in Guangxi Province, China, comprising 21 open-pollinated half-sib families, were used in this study. Genetic variations in the growth (tree height, diameter at breast height (DBH), and volume (V)) and morphological (height to live crown base (HCB), crown width (CW), and branch angle) traits were assessed, and the genetic parameters were estimated to clarify the genotype × environment interaction effects. The average values for the tree height, DBH, V, HCB, CW, and branch angle were 16.33 m, 17.25 cm, 0.21 m3, 6.68 m, 2.15 m, and 45.45°, respectively. The most important sources of variance for the tree height, DBH, V, and HCB were the block and family, whereas the location, family, and family × location had significant impacts on the tree height, DBH, V, and HCB (p ? 2023 by the authors.