Litz, R.E., Tropical Research and Education Center, Center for Tropical Agriculture, University of Florida, 18905 SW 280 Street, Homestead, FL 33031-3314, United States
Gómez-Lim, M.A., Centro de Investigacion y de Estudios Avanzados del IPN (CINVESTAV), Apartado Postal 629, Irapuato GTO 36500, Mexico
Lavi, U., Department of Horticulture, Agricultural Research Organization (ARO), The Volcani Center, PO Box 6, Bet Dagan 50250, Israel

[No abstract available]