Cold Storage of Choctawhatchee Sand Pine Seedlings: Effect of Lifting Date and Length of Storage
Cold storage was found to keep Choctawhatchee sand pine (Pinus clausa var. immuginata Ward) seedlings in good condition for planting for as long as 12 weeks. Seedlings were lifted in mid-November, December, January, and February; stored in KP bags at temperatures in the thirties (°F) up to 12 weeks, and planted from November through May. Survival was good, averaging 90 percent despite significant differences in lifting date and storage interval. Survival was lower for seedlings stored longest. Those lifted early showed low survival only in the second installation of the study, where dormancy was delayed by warm, wet fall weather. Differences in survival could not be correlated with seedling size, morphology, or nutrient content, nor with temporary disruptions in the temperature regime of the cold storage unit due to heavy use or equipment failure.
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Document Type: Journal Article
Affiliations: Silviculturist, Retired, Southeastern Forest Experiment Station, USDA Forest Service, Marianna, Florida
Publication date: 1982-11-01
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