Evaluation location: Puerto Rico, United States
Nine carambola cultivars were evaluated at the Isabela Research Farm (Coto clay: clayey, kaolinitic isohyperthermic Typic Hapludox) for fruit production and quality. Six months old trees grafted onto Golden Star rootstocks were transplanted to the field February 9, 1999. Soil type for the site was Oxisol, pH in water 6.62; pH in calcium chloride, 6.06; Ammonium nitrogen, 11.05 mg/kg; Nitrate nitrogen , 6.60 mg/kg; Organic carbon, 1.20 %; Phosphorus, 15.79 kg.ha-1; Potassium, 469.80 mg/kg; Calcium, 1654.00 mg/kg Magnesium, 67.80 mg/kg-1. Historical weather data for this site are: rainfall 1649 mm; evaporation , 1672 mm; maximum temperature, 29.8 (C); minimum temperature, 19.9 (C); mean temperature, 24.9 (C), elevation, 126 m.