Current address: Appalachian Fruit Research Station, USDA-ARS, Route 2, Box 45, Kearneysville, WV 25430.
Received tor publication 3 June 1983. Florida Agricultural Experiment Station Journal Series No. 5351. The cost of publishing this paper was defrayed in part by the payment ot page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.