Methods
Nine carambola cultivars were evaluated at the Corozal Agricultural Experiment Station of the University of Puerto Rico (UPR) (Corozal clay; clayey, mixed, isohyperthermic Aquic Haplohumults) for fruit production and quality. Six months old trees grafted onto Golden Star rootstocks were transplanted to the field March 17, 1999. Soil type for the site was Ultisol, 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-1; Potassium, 53.67 mg/kg; Calcium, 1551.00 mg/kg; Magnesium, 62.00 mg/kg. Historical weather data for this site are: rainfall, 1863 mm; evaporation, 1391 mm; maximum temperature, 29.7 (C); minimum temperature, 19.8 (C); mean temperature, 24.7 (C); elevation, 195 m.
Morphological data, Field observations, Waiakea, Yearly avg temp 70.899 F, high 85.83, low 57.35; avg rainfall year 130.6".
Field fruit observations, Waiakea, Year avg; temp 74, total rainfall 164.25, year avg RH 63%, year avg DP 66 F
Field observations; Waiakea, Yearly avg temp (F) 70.899, high 85.83, low 57.35; soil temp (F) avg. 75.39, high 89.48, low 64.22; rainfall (inches) year total 151.34, monthly average 12.61, high month 25.432, low month 3.41; BP (Hg) avg. 29.39, high 29.55, low 29.04; PAR (uE) avg. 385.35, high 2113.8, low 1.3; DP (F) avg. 67.481, high 81.06, low 48.55; RH (%) avg. 90.67, high 110.25, low 34.25
Field observations; Waiakea, Yearly avg temp (F) 70.446, high 88.74, low 58.04; soil temp avg (F) 74.75, high 89.48, low 63.54; total year rainfall (inches) 173.06, monthly avg. 14.42, high month 35.85, low month 5.6; BP (Hg) avg 29.4, high 29.66, low 29.12; PAR (uE) avg. 543.92, high2553.8, low 1.3; DP (F) avg 70.76, high 86.07, low 34.04; RH (%) avg 102.58, high 110.25, low 20.25
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.
Nine carambola cultivars were evaluated at the UPR-Juana Diaz Agricultural Experiment Substation (San Anton; fine-loamy, mixed isohyperthermic Cumulic Haplustoll) for fruit production and quality. Six months old trees grafted onto Golden Star rootstocks were transplanted to the field March 17, 1999. Soil type for the site was Mollisol, pH in water 8.28, pH in calcium chloride, 7.85; Ammonium nitrogen, 14.00 mg/kg; Nitrate nitrogen, 14.00 mg/kg; Organic carbon, 0.41 %; Phosphorus, 104.00 kg.ha-1; Potassium, 650.00 mg/kg; Calcium, 3158.00 mg/kg; Magnesium, 337.00 mg/kg. Historical weather data for this site are: rainfall, 917 mm; evaporation, 2149 mm; maximum temperature, 31.2 (C); minimum temperature, 20.8 (C); mean temperature, 26.0 (C); elevation, 21 m.