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Horticultura Brasileira

Print version ISSN 0102-0536


MEDEIROS, José Francismar de et al. Irrigation effect in the postharvest conservation of Piel de Sapo melon. Hortic. Bras. [online]. 2012, vol.30, n.3, pp.514-519. ISSN 0102-0536.

The occurrence of effects of cultivation conditions on the postharvest quality and conservation of fruits is already known, but the studies are scarce, in the literature, which relate the use of irrigation with postharvest quality and conservation of melon. Thus, the objective was to evaluate the irrigation effect in the postharvest conservation of Piel de Sapo melon. An experiment was carried out in Mossoró, Rio Grande do Norte state, Brazil, from September to December 2004 in which three irrigation levels tested: L1= 281 mm, L2= 349 mm and L3= 423 mm, the soil being fertilized according to the crop needs. The fruits were harvested at physiological maturity (60 days after transplantation). After the harvest, the fruits were transported to the laboratory of the Universidade Federal Rural do Semiárido, where the fruits were washed and selected. A sampe was evaluated previously and the other fruits were identified and placed in cardboard boxes. They were stored in a cooler with temperature at 10+1ºC and 85+2% RH where they remained for 35 days. The experimental design was completely randomized in a 3x2 factorial, representing respectively three irrigation levels (L1, L2 and L3) and two fruits storage periods (0 and 35 days), with five replications. Significant differences were detected between the irrigation levels and storage time to vitamin C. There occurred an increase on the pH value and a decrease on vitamin C content and on fruits pulp firmness with higher irrigation levels. The pulp firmness, acidity and soluble solids of fruits decreased after storage time.

Keywords : Cucumis melo; postharvest physiology; storage; vitamin C; ºBrix.

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