Received for publication May 27, 1982. Paper No. 8325 of the Journal Series of the North Carolina Agricultural Research Service, Raleigh, NC 27650. Appreciation is expressed to Earl J. Small Growers, Inc., Pinellas Park, Fla. for the donation of plant material and to the staff of the Southeastern Plant Environmental Laboratories (Phytotron) at North Carolina State University.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.