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Ciência Rural

Print version ISSN 0103-8478


SILVA, Danielle Fabíola Pereira da et al. Anticipation of 'ubá' mango ripening with preharvest ethephon application. Cienc. Rural [online]. 2011, vol.41, n.1, pp.63-69. ISSN 0103-8478.

Preharvest application of ethephon, a compound that releases ethylene when hydrolyzed, can anticipate and standardize mango harvesting. In this study, the effects of different doses of ethephon, applied at preharvest, on harvest anticipation of 'Ubá' mango were evaluated. On the 17th week after anthesis, 25 mango trees, five per treatment, were sprayed with ethephon at 0, 250, 500, 750 and 1000mg L-1, plus 0.5% of mineral oil. Five fruits from each plant were harvested daily until full ripening, and evaluated. Except, for dose 0mg L-1, in which six days after ethephon application (DAAE), harvest was carried out weekly up to 41DAAE The treated fruit presented a more intense flesh color than the non-treated, particularly at the doses of 500 and 750mg L-1. Fruit treated with 500, 750 and 1000mg L-1showed abrupt firmness reduction from the 1st DAAE and TSS higher than 18°Brix on the 6th DAAE. Non-treated fruit presented slower firmness reduction and reached 18°Brix on the 35th DAAE. The dose of 1000mg L-1 of ethephon resulted in premature fall and low fruit quality. Application of 500 or 750mg L-1 of ethephon allowed to anticipate and to standardize mango harvesting. These doses also allowed harvesting fruit with the best commercial quality and without the need of climatization after harvest.

Keywords : Mangifera indica L.; Ethrel; postharvest.

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