Home Publications National Nursery Proceedings 1998 Evaluating the Cold Hardiness of Container-Grown Longleaf Pine Seedlings

Evaluating the Cold Hardiness of Container-Grown Longleaf Pine Seedlings

Root systems of container-grown longleaf pine (Pinus palust& Mill.) seedlings stored outside in fall and winter can be severely damaged by low temperatures in the South. The freeze-induced electrolyte leakage (FIEL) test was used to evaluate the cold hardiness of container-grown longleaf pine. Results indicated that longleaf pine seedling roots should not be exposed to temperatures below 26.5 OF. Moreover after mid-January, the minimum temperature associated with permanent seedling damage may increase. One alternative to risking damage from low temperature in winter is planting seedlings in fall. If seedlings must be retained for winter and spring planting, the placement of black polyethlyene over seedlings can avoid damage from overnight freezing.


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Author(s): Mary A. Sword, Richard W. Tinus, James P. Barnett

Publication: National Nursery Proceedings - 1998

Event: Southern Forest Nursery Association Meeting
1998 - Lafayette, LA

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