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Home → Publications → Tree Improvement and Genetics → North Central Tree Improvement Conference → 6th North Central Tree Improvment Association and the 31st Northeastern Forest Tree Improvement Conferences (1989) → Selection From Natural Populations of Forest Trees: Variation in Relationship Coefficients and Species Response to Individual Vs. Family Selection

Selection From Natural Populations of Forest Trees: Variation in Relationship Coefficients and Species Response to Individual Vs. Family Selection

A knowledge of relationship coefficients has been suggested to be of critical importance in making a decision on choice of selection method from natural populations of forest trees. Data on population structure of several coniferous and angiosperm forest trees were utilized to obtain relationship coefficients. The results suggested that relationship coefficients were low among wind pollinated species; but varied from low to high among insect pollinated species. The choice of individual or family selection may depend on the levels of gene flow characteristic to each species. Species that experience high (Nm > 1 .0) and low to intermediate (Nm <1 .0) gene flow may respond to individual and family selection, respectively.


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Author(s): Diddahally R. Govindaraju

Publication: Tree Improvement and Genetics - North Central Tree Improvement Conference - 1989