Controle da antracnose e qualidade de mangas (Mangifera indica L.) cv. haden, após tratamento hidrotémico e armazenamento refrigerado em atmosfera modificada

Abstract

The anthracnose is a major disease that causes damage to mangoes (Mangifera indica L.) and affects their commercialization. Due to its importance, the present work had as objective to study the control of anthracnose and quality mangoes cv. Haden, after hydrothermic treatment and storage under refrigeration in modified atmosphere. The mangoes were obtained from a commercial orchard in the city of Janaúba - MG, the harvest of 2000. The samples were submitted the hydrothermic treatment (55ºC per 5 minutes), followed by cold bath. After drying, the fruits were conditioned in polystyrene trays, covered with PVC film with 15 micra of thickness e stored under refrigeration (10ºC and 70% the RH), for a period of 12 days. The experiment was arranged in a completely randomized design, with 8 treatments, 3 repetitions and experimental unit of 4 fruits. Physical, chemical and phytopathological evaluations were done at every 4 days. It was concluded that the hydrothermic treatment, packing and refrigeration had no effect on the loss of weight of mangoes, but reduced the incidence of anthracnose. Fruits packed and cooled at 10ºC were shown to have adequate characteristics for consumption until 12 days of storage; those not packed and not cooled were adequate until 8 days of storage.