H. R. Kok
2 publications by H. R. Kok:
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Development and Potential of a Longleaf Pine Seedling Seed Orchard
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Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1977
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A Handy, Inexpensive Planting Table for Small Seed Lots
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Publication: Tree Planters' Notes - Volume 30, Number 2 (1979)
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