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Geographic Variation in Forest Trees

Rather than discuss geographic variation in general, I would like to talk about specific experiments under way at Michigan State University as part of a cooperative program (NC-51, financed in part by the U. S. Department of Agriculture) with other states in the North Central Region. The experiments are only one to five years old and include 10 different conifers. They do not yet provide growth data on mature trees. They incorporate many new ideas in design and analysis. Hence, they are giving and should continue to give many types of data not available from older tests.


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Author(s): Johnathan W. Wright

Publication: Tree Improvement and Genetics - Central States Forest Tree Improvement Conference - 1960