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Height and Diameter Growth Differences Among Eight Cherrybark Oak Provenances

Cherrybark oak (Quercus pagoda Raf.) is an important and highly valued southern hardwood timber species. Previous studies have shown that growth differences do exist among provenances (Greene et al. 1991). Yet this study did not identify any geographic trend in seed source productivity. Substantial variation among families within provenances was also observed by Greene et al. (1991) leading to the recommendation that provenance considerations as well as individual family considerations must be made when making selections. The objective of this study was to identify growth differences among various seed sources. Determination of potential genetic gains through selection was conducted through estimation of heritability and calculation of genetic gain. Finally, the ability to select for volume at age 15 from juvenile measurements was evaluated through age-age correlations.


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Author(s): Joshua P. Adams, Randall J. Rousseau, John C. Adams

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 2005