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Ciência e Agrotecnologia

versão impressa ISSN 1413-7054versão On-line ISSN 1981-1829

Resumo

DIAS, Mário Sérgio Carvalho et al. Anthracnose control and mango quality (Mangifera indica L.) cv. van dyke after hydrothermal and chemical treatment. Ciênc. agrotec. [online]. 2005, vol.29, n.2, pp.289-295. ISSN 1413-7054.  https://doi.org/10.1590/S1413-70542005000200004.

Anthracnose causes severe damage to the mango skin. Therefore, there is need to do the post-harvest phytosanitary treatment of the fruits through soaking in fungicide solution, which associated with the hydrothermal treatment has resulted into improved benefits. The present work has aimed at studying anthracnose control and post-harvest quality of mangoes (Mangifera indica L.), cv. Van Dyke after hydrothermal treatment associated with chemical through the physical, physicochemical, chemical and phytopathologic analyses. The mangoes coming from the commercial orchard of the town of Janaúba-MG, of the 2000 crop, were harvested at the commercial maturation stage. After selection according to color uniformity, size and absence of mechanic and  physiologic  injuries,  they  were  shipped  in  plastic  boxes  to the  EPAMIG - CTNM - Nova  Porteirinha - MG, fruit post-harvest laboratory, where the samples were submitted to the hydrothermal treatment  in cold bath in solution containing the fungicides Thiabendazole (Tecto 400 mL/100L), Proclaraz (Sportak 10L/100L) and  Imazalil (Magnate  200mL/100L). After  air-drying, the fruits were packed in plastic trays and stored at room temperature (25±2°C and RH 70%) for a 12-day period and evaluated as to the intrinsic quality characteristics every 4 days. The experiment was conducted a completely randomized with 8 treatments, 4 replicates and experimental unit consisting of 4 fruits. The variations of pH, total soluble  solids, total  titrable  acidity and total soluble sugars have not endangered the organoleptic characteristics of mangoes cv. Van Dyke stored under room temperature  (25±2°C and RH 70%) till  8 days' storage. The association of the hydrothermal treatment with the chemical was efficient in fruit anthracnose control  for till 12 days' storage. The fungicide Prochloraz (Sportak 110 mL/100L), associated with the hydrothermal treatment, completely inhibited the appearance of anthracnose symptoms.

Palavras-chave : conservation; fungicide.

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