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U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Evaluation of Full-Sib Families of Douglas-fir in a Nelder Design

Thirty Douglas-fir full-sib families and an unselected check were evaluated in a Nelder's design covering a range of densities from 735 to 26,300 trees/ha. Regression analysis resulted in good overall fits of volume and caliper to density with the power function (y = ax b ), and indicated differential response of families to density.

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Author(s): Roy W. Stonecypher, Rex B. McCullough

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1981

Section: Section 1: Predicting Growth and Yield of Genetically Improved Stock