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Concepts For Analysis Of Intergenotypic Competition In Forest Trees

Area Potentially Available (APA), an index of individual-tree competitive status or available growing space, is adapted for use in the analysis of growth response to inter-genotypic competition in genetic field tests. The approach allows geneticists to detect differential response to competition from neighboring trees that vary in size and distance as well as genetic identity. Methods for detecting interactions between genetic entities in response to competition are presented. Data from a loblolly pine progeny test planted in a Nelder's Wheel design are used to illustrate the approach.


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Author(s): Warren L. Nance, Samuel B. Land, Jr., Richard F. Daniels

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1983