Abstract
Abstract Rehydration characteristics of cut eastern white pine (Pinus strobus L.) and Norway spruce [Picea abies (L.) Karst.] Christmas trees were evaluated over a wide range of xylem water potentials and storage periods. Cut pines failed to rehydrate fully when initial xylem water potential was less than –3.00 MPa. Norway spruce trees completely rehydrated at xylem water potentials as low as –3.50 MPa, with partial rehydration occurring below –4.0 MPa. Twig water content closely paralleled xylem water potential. All sample trees rehydrated fully when outdoor storage periods were < 6 weeks during the months of December and January.
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