Additive Genetic Covariance Function for Height in Pinus taeda

Prediction of time trends in additive genetic (co)variances are valuable for estimation of gain over time and for choosing the optimum age of selection. A covariance function, which gives covariance of a trait at any two ages as a function of the ages, is predicted for height in Pinus taeda using data from six progeny tests of P. taeda planted in Eastern Highlands of Zimbabwe assessed at 1.5, 7.5, 9.5, 12.5, 13.5 and 22.5 years. The progeny tests involved factorial matings among 21 female x 7 male phenotypically superior parents selected from plantations in Zimbabwe and South Africa.


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Author(s): David P. Gwaze, J. A. Woolliams

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1997

Section: Poster Abstracts

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