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Cone and Seed Yields in White Spruce Seed Production Areas

The source of seed is an important consideration in the reforestation program on the National Forests in the North Central Region. Thirty-five seed production areas have been set up in the Region, along the lines proposed by the North Central Forest Experiment Station, to provide control of seed source.


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Author(s): John A. Pitcher

Publication: Tree Improvement and Genetics - Lake States Forest Tree Improvement Conference - 1965