Effect of additive, dominant and epistatic variances on breeding and deployment strategy in Norway spruce

Abstract Genetic variances are important parameters and have a great impact on the determination of optimal breeding strategies tree species. A large clonal testing program was conducted to estimate additive, dominant epistatic for development deployment in Norway spruce (Picea abies (L.) Karst.). The analysis results genetic variation growth wood properties two trials central Sweden indicated that sources total were both additive non-additive variances. Additive accounted majority diameter at breast height (DBH) quality traits, whereas significant only an early age. Predicted gain highest based best tested (replicated) clones (4.7–65.3 per cent), followed by individual trees from full-sib family trial (3.5–57.7 seedlings generated open-pollination (1.9–48.3 cent).