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Genetic Variation in Quercus Rubra L., A Nebraska Provenance Test Report

Twenty-seven provenances of Quercus rubra L. were planted in eastern Nebraska in 1962-4. Height and diameter growth, leaf flush date, leaf retention, and number of growing days showed no meaningful association with latitude or longitude and are discontinuous in variation. Observation of fall phenology, including dates of leaf color, death, and drop were strongly correlated with latitude suggesting that these traits are clinal in variation. Key words : northern red oak, height and diameter growth, phenology.

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Author(s): Scott E. Schlarbaum, Walter T. Bagley

Publication: Tree Improvement and Genetics - Central States Forest Tree Improvement Conference - 1976