1. National Seed Service, Ministry of Agriculture; Natural Resources and Rural Development of the Republic of Haiti; National Road No 1 Port-au-Prince Haiti
2. Instituto Dominicano de Investigaciones Agropecuarias y Forestales; Estación Experimental Arroyo Loro; Km 5, Carretera San Juan-Las Matas de Fafan San Juan de la Maguana Dominican Republic
3. USDA-ARS; Tropical Agriculture Research Station; 2200 P. A. Campos Ave., Suite 201 Mayagüez PR 00680-5470
4. Dep. of Crop and Agro-Environmental Sciences; Univ. of Puerto Rico; Mayagüez Puerto Rico 00681-9000