An Ocala Sand Pine Progeny Testcompared With A Seedling Seed Orchard

Sixty-three half-sib families of Ocala sand pine were grown in a seedling seed orchard and a progeny test in Central Florida. At age 7, differences among families were significant for height, dbh, and survival in the seed orchard, for survival in the progeny test, and for dbh and survival in the combined analysis of variance of both locations. In the combined analysis the location X family interaction was only significant for survival. However, inspection of family means of each trait showed that some of the best and worst families changed rank dramatically between tests.

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Author(s): Timothy LaFarge, Ralph A. Lewis, James L. McConnell

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1985

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