John L. Gammage
4 publications by John L. Gammage:
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Refrigeration Prolongs Viability of Cottonwood Seed
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Publication: Tree Planters' Notes - Issue 43 (1960)
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Size of Cottonwood Nursery Stock Related to Seedbed Density and Row Spacing
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Publication: Tree Planters' Notes - Volume 22, Number 4 (1971)
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Comparison of Germination and Viability Tests for Southern Hardwood Seed
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Publication: Tree Planters' Notes - Volume 18, Number 3 (1967)
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Easy Way to Sow Cottonwood Nursery Beds
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Publication: Tree Planters' Notes - Issue 51 (1962)
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