Notes: Early Genetic Evaluation of Open-Pollinated Douglas-Fir Families
Authors: Riitters, Kurt H.1; Perry, David A.1
Source: Forest Science, Volume 33, Number 2, 1 June 1987 , pp. 577-582(6)
Abstract:
In a test of early genetic evaluation of the growth potential of 14 families of open-pollinated Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco), measures of growth and phenology of seedlings grown in a coldframe were correlated with height of saplings in evaluation plantations at 9, 12, and 15 years. Fifteen-year height was most strongly correlated with measures of seedling budset (r = -0.57), height (r = 0.54), and branchiness (r = -0.53). Seedling growth and phenology values generally were poorly correlated with seed weight; however, seedling-sapling correlations were related to seedling-seed weight correlations. Seedling-sapling correlations improved with sapling age from 9 to 15 years. For. Sci. 33(2):577-582.Keywords: Pseudotsuga menziesii; juvenile-mature correlation; tree improvement; seed weight
Document Type: Miscellaneous
Affiliations: 1: Associate Professor, Department of Forest Science, Oregon State University, Corvallis, Oregon 97331
