Integrative Biology Journals

JOURNAL OF FORESTRY RESEARCH ›› 2023, Vol. 34 ›› Issue (4): 1107-1116.DOI: 10.1007/s11676-022-01529-7

• Original Paper • Previous Articles    

Variation and stability analysis of growth traits of poplar clones in the seedling stage in northeast China

Xiaoting Liu1, Qiushuang Zhao1, Peng Yin1, Hanxi Li1, Xuesong Li3, Liguo Wu4, Yueji Li5, Yanbo Hu1,h, Xiyang Zhao1,2,j   

  1. 1 State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 150040, Harbin, People’s Republic of China
    2 College of Forestry and Grasslands, Jilin Agricultural University, 130118, Changchun, People’s Republic of China
    3 Dongling State-Owned Forest Protection Center, 138000, Songyuan, People’s Republic of China
    4 Cuohai Forest Farm of Longjiang, 161000, Qiqihar, People’s Republic of China
    5 Baicheng State-Owned Forest Farm, 137000, Baicheng, People’s Republic of China
  • Received:2022-04-21 Accepted:2022-07-09 Online:2024-10-16
  • Contact: Yanbo Hu, Xiyang Zhao

Abstract:

Plant phenotypes are influenced by genetic and environmental factors. In this study, the growth traits of 43 one-year-old poplar clones grown at different sites in northeast China (Dongling State-owned Forest Protection Center, DL; Baicheng State-owned forest farm, BC; and Cuohai Forest farm, CH) were evaluated and analyzed across clones and sites. Results show significant differences in height and base diameter among sites and clones. Phenotypic and genetic variation coefficients ranged from 49.59% (BC) to 58.39% (DL) and from 49.33% (BC) to 58.06% (DL), respectively. Additive main effects and multiplicative interaction (AMMI) analysis showed that the effects of genotype, environment, and genotype ×environment interaction were significantly different. Genetic variation was the main source of variation, accounting for 48.6%. AMMI biplot showed that clone 30 had high and stable yields at the three sites. From an evaluation of multiple traits and GGE biplot that clone 2, clone 30 and clone 25 had higher yield than the other clones at DL, CH and BC, respectively. These clones will provide material for forest regeneration in northeast China.

Key words: Populus, Genetic variation, Genotype×environment interaction, AMMI model, GGE biplot