Article Genetic Variation, Heritability and Genotype × Environment Interactions of Resin Yield, Growth Traits and Morphologic Traits for Pinus elliottii at Three Progeny Trials Meng Lai 1,† ID , Leiming Dong 2,†, Min Yi 1, Shiwu Sun 3, Yingying Zhang 1, Li Fu 1, Zhenghua Xu 1, Lei Lei 1, Chunhui Leng 1 and Lu Zhang 1,* 1 Key Laboratory of Silviculture, Co-Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;
[email protected] (M.L.);
[email protected] (M.Y.);
[email protected] (Y.Z.);
[email protected] (L.F.);
[email protected] (Z.X.);
[email protected] (L.L.);
[email protected] (C.L.) 2 State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;
[email protected] 3 Baiyun Mountain State Owned Forest Farm, Jian 343011, China;
[email protected] * Correspondence:
[email protected]; Tel.: +86-791-8381-3733 † These authors contributed equally to this work. Received: 26 July 2017; Accepted: 25 October 2017; Published: 30 October 2017 Abstract: To better understand the genetic control of resin yield, growth traits and morphologic traits for Pinus elliottii families, genetic relationships among these traits were examined in three 27-year-old progeny trials located in Jingdezhen, Jian and Ganzhou, Jiangxi Province, China. In total, 3695 trees from 112 families were assessed at the three sites. Significant site, family and family × site effects were found for resin yield, growth traits and morphologic traits. Resin yield and growth traits were found to be under moderate genetic control for the three sites combined, with family heritability and individual narrow-sense heritability ranging from 0.41 to 0.55 and 0.11 to 0.27, respectively.