Visiting scientist. Present address: Faculty of Horticulture, Department of Seed Science and Nursery, Seed Science Division, Poznan Agricultural Univ., Baranowo, 62-081 Przezmierowo, Poland.
Associate Professor of Seed Science and Technology.
Research Associate, Plant Anatomy.
Professor of Plant Breeding.
Received for publication 20 Apr. 1987. This research was supported in part by the New York State Snap Bean Assn. 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.