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Flotation method improves seed separation of full and empty longleaf pine seeds, indicating high precision.
Full and empty seeds of Pinus palustris Mill. can be separated with high precision by flotation in n -pentane, which is not harmful to viability. While this method is probably best suited for small lots of seed, it can also be used for large ones.
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B. F. McLemore (1965) studied this question.
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