ibclogo XVI International Botanical Congess

Abstract Number: 4925
Poster No. = 2412


EFFECTS OF HARVESTING TIMES AND GENOTYPES OF NOPAL (Opuntia spp) ON pH OF CLADODES NOPALITOS FOR HUMAN CONSUMPTION


Murillo-Amador, Bernardo and Troyo-Diéguez, Enrique, CIBNOR, S.C., La Paz, Baja California Sur , México


Three harvesting times (8:00 AM, 13:00 & 18:00 PM) and eight genotypes: COPENA V-1, Chapingo 1, Milpa Alta, Otumba, Durango 1 & 2, Centenario 1 & 2, were used. Samples were taken weekly and pH measured in laboratory. The results showed differences in both factors. The average between harvesting times was 5.29 at 18:00 PM, where the acidity of cladodes was reduced, whereas, high acidity of cladodes was recorded at 8:00 AM (pH 3.73). Similar results were found by Flores (1992), García & Pimienta, Samish & Ellern (1975), Nobel (1980), and Whiting et al., (1979). In relation to the genotypes, Centenario 2, showed the less acidity on cladodes (pH 5.54), Durango 1, was equal statistically, (pH 4.52). Otumba has the lowest pH (4.29). The rest showed pH values close to Otumba.

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