Mainly high phenotypic stability of black spruce clones for growth and wood traits in contrasted environments within the current breeding zones and multitrait selection in Quebec's seed and breeding zones.

ABSTRACT: Selected trees from various progeny trials cannot be directly compared. As parents of clonal seed orchards and components of the next breeding cycle, it is crucial to verify their stability in different soil and climatic conditions and to rank them for multiple traits. A subset of the best trees selected for height at 10 or 15 years was cloned to establish 2 clone trials per population for 4 breeding populations, covering different bioclimatic domains of Québec. Between 80 and 119 clones per population were compared for height, diameter at breast height, indirect measure of wood density (Pilodyn 6J Forest device) and acoustic velocity (Fiber-gen Hitman ST300). Linear mixed models were used to estimate various genetic parameters, including genotypic values, using the Best Linear Unbiased Pr

SUBMITTER: Desponts M 

PROVIDER: S-EPMC12405895 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature