Trunk distortion weakens the tree productivity revealed by half-sib progeny determination of Pinus yunnanensis.

ABSTRACT: Twisted trunks are not uncommon in trees, but their effects on tree growth are still unclear. Among coniferous tree species, the phenomenon of trunk distortion is more prominent in Pinus yunnanensis. To expand the germplasm of genetic resources, we selected families with excellent phenotypic traits to provide material for advanced generation breeding. The progeny test containing 93 superior families (3240 trees) was used as the research material. Phenotypic measurements and estimated genetic parameters (family heritability, realistic gain and genetic gain) were performed at 9, 15, and 18 years of age, respectively. The genetic evaluation yielded the following results (1) The intra-family variance component of plant height (PH) was greater than that of the inter-family, while the inter-fami

SUBMITTER: Li Z 

PROVIDER: S-EPMC11221199 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature