Contributions of Roots, Stems, and Leaves to Height Growth of Longleaf Pine
Pinus palustris Mill. saplings made 31 percent of their normal spring elongation from food reserves in the woody stem. The roots supplied materials for an additional 15 percent when the old needles were present or 29 percent in their absence. The old needles apparently furnished enough materials for 40 percent of normal elongation, but this was increased to 54 percent when the roots were partially isolated from the top by girdling.
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Document Type: Journal Article
Affiliations: Member of the Forest Service, U.S. Department of Agriculture
Publication date: 1964-03-01
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