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NMPRO, Nursery Management & Production
March 2007

Guihong Bi
Assistant Professor
Mississippi State University
Truck Crops Experiment Station
2024 Experiment Station Road
PO Box  231, Crystal Springs, MS 39059

Carolyn Scagel
Plant Physiologist
USDA-ARS
Horticultural Crops Research Laboratory
3420 NW Orchard St.
Corvallis, OR 97330