AbstractOn the basis of yield and organoleptic evaluation, out of 10 cassava (Manihot esculenta Crantz) cultivars, IAC-12-829, IAC-Mantequeira, Jamaica 18 and Trinidad 14-56 are the most promising in this preliminary evaluation. The 10 cassava cultivars were evaluated in the hilly humid East Central region of Puerto Rico. The highest yielders were IAC 12-829, IAC-Mantequeira, Jamaica 18, and SRT-598-Sta. Catarina with 41.98, 39.24, 35.17 and 31 .13 tons/ha, respectively. Hydrocyanic acid content among cultivars was well below the toxicity level (50-100 mg/kg). The mean values ranged from 0.0 up to 22.3 mg HCN/kg of fresh peeled root. Regarding overall acceptability by the tasting panel all except Sta. Catarina cultivar were acceptable.
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