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U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Future Breeding Strategies and the Need for Early Testing in Black Spruce

Operational improvement programs for black spruce must be efficiently designed, genetically and economically. Recent results suggest that there may be benefit in the use of selected non-local material, and also breeding zones may need to be re-designed. Specific combining ability may contribute significantly to height growth genetic variance at later ages, in which case the seedling seed orchard approach may be sub-optimal. Additional keywords: Combining ability, seed orchards, genecology, breeding zones, heritability.


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Author(s): T. J. B. Boyle

Publication: Tree Improvement and Genetics - Northeastern Forest Tree Improvement Conference - 1987