Evaluation location: Puerto Rico, United States
Six mamey sapote cultivars were evaluated by USDA-ARS at the Corozal Agricultural Experiment Station of the University of Puerto Rico for fruit production and quality. Six-months-old trees grafted onto 'Pantin' rootstocks were transplanted to the field April 25, 2000. The Ultisol soil (Corozal clay; clayey, mixed, isohyperthermic Aquic Haplohumults) had a pH in water, 4.75; pH in calcium chloride, 4.11; ammonium nitrogen, 23.01 mg/kg; nitrate nitrogen, 9.17 mg/kg; organic carbon, 1.19 %; phosphorus, 5.88 kg/ha; potassium, 54 mg/kg; calcium, 1551 mg/kg; magnesium, 62 mg/kg. Historical weather data for this site are: rainfall, 964 mm; evaporation, 696 mm; maximum temperature, 30.6 (C); minimum temperature, 19.9 (C); elevation, 195 m.