EFFECTS OF AMINOETHOXYVINYGLYCINE AND POSTHARVEST TREATMENT PACKAGE OF PLASTIC WRAPPING, FUNGICIDE PROCHLORAZ, AND LOW TEMPERATURE ON THE FRUIT SHELF-LIFE AND QUALITIES OF ‘CALLINA’ PAPAYA

Abstract

'Callina' papaya (Carica papaya L.) fruit is a recently released papaya fruit cultivar that dominates domestic markets in Indonesia. Its fruit has a very short shelf-life due to high respiration and transpiration rates. In our previous research, a postharvest treatment package consisting of one-layer plastic wrapping, fungicide Prochloraz 0.67 mL/L, and low temperature of 16-18 °C was able to prolong its shelf-life and maintain its high fruit qualities. By adding an anti-ethylene of aminoethoxyvinyglycine (AVG) to the postharvest package, longer fruit shelf-life can be expected. The purpose of this research was to study the combined effect of the fruit postharvest treatment package and AVG to the shelf-life and qualities of 'Callina' fruit. The study was laid out in a Completely Randomized Design of a 2 x 2 factorial. The first factor was the fruit postharvest treatment package (without and with the package consisting of a single layer plastic wrapping + Prochloraz fungicide 0.67 mL/L + low temperature 16-18 °C) and the second factor was the anti-ethylene AVG (without and with 5 mg/L AVG). The results showed that (1) the fruit postharvest treatment package had a significant effect on the fruit shelf-life of 'Callina' papaya by prolonging the shelf-life of 14 days longer than without the fruit postharvest treatment package, without affecting its fruit qualities, (2) the AVG had no effect on the shelf-life and fruit qualities, and (3) the combination of fruit postharvest treatment package and AVG gave the best result that prolonged its fruit shelf-life up to 16 days longer