Growth adaptability and stability in Catalpa bungei clones: the role of genetics and environment.

ABSTRACT: Understanding genotype, environment, and genotype-by-environment (G × E) interactions is vital for effective forest breeding. The Catalpa bungei, valued for its rapid growth and high-quality wood, exhibits uncertain genetic variation in growth across diverse ecological conditions. To clarify this, we measured the growth traits of clones over several years at multiple sites to evaluate the effects of genetics and environment on growth. The results indicate that growth traits exhibit significant genetic differences and high repeatability, and the significant G × E interaction highlights the importance of site-specific tree selection. Correlation and regression analysis indicated that MCMT was positively correlated with DBH, whereas DD < 18 was negatively correlated with DBH. TD and CM

SUBMITTER: Xiao Y 

PROVIDER: S-EPMC11870305 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature