Postharvest diseases and physicochemical characteristics of mango /
Doenças e características físicas e químicas pós-colheita em manga

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ID: 66737
2009
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Abstract
The objective of this work was to identify and to quantify the postharvest diseases and to evaluate the physical and chemical characteristics of mango fruits cvs. Haden, Tommy Atkins, Palmer and Keitt, submitted or not to the treatment with the fungicide carbendazim. The fruits had been harvested in a commercial orchard in President Prudente-SP, individualized and kept in a humid chamber for 24h, remaining eight days at 25±2ºC and 70-80% RH. The incidence of diseases, the firmness and the loss of mass were evaluated periodically, during nine days. Before and to the end of the storage, the fruits had been characterized to titratable acidity and soluble solids content. There was high occurrence of rots in the four mango cultivars. Anthracnose was the most frequent disease, with practically 100% of incidence in the fruits. The Lasiodiplodia stem-end rot had greater incidence in cv. Tommy Atkins (68%), followed for the Haden (36%). The treatment with carbendazim presented changeable efficiency in the control of the rots, in function of mango cultivar. This treatment is recommended for the control of the stem-end in cvs. Haden and Palmer and also to reduce the severity of anthracnose in cvs. Haden and Keitt. The fungicide application did not influence soluble solids and titratable acidity content and ratio of mango cultivars, except in Palmer that presented minor ratio when treated with fungicide. The ethefon application did not influence the ripening process of mango cv. Haden.

O presente trabalho objetivou identificar e quantificar as doenças pós-colheita e avaliar as características físicas e químicas de frutos de manga cultivares Haden, Tommy Atkins, Palmer e Keitt submetidos, ou não, ao tratamento com o fungicida carbendazim. Os frutos foram colhidos em um pomar comercial em Presidente Prudente-SP, individualizados e submetidos a 24h de câmara úmida, permanecendo por mais oito dias a 25±2ºC e 70-80% de UR. A incidência de doenças, a firmeza e a perda de massa foram avaliadas periodicamente, durante nove dias. Antes e ao final do armazenamento, os frutos foram caracterizados quanto aos teores de acidez titulável e sólidos solúveis. A ocorrência de podridões foi elevada nas quatro cultivares de manga. A antracnose foi a doença mais freqüente, com praticamente 100% de incidência nos frutos. A podridão peduncular de Lasiodiplodia teve maior incidência na cv. Tommy Atkins (68%), seguida pela Haden (36%). O tratamento com carbendazim apresentou eficiência variável no controle das podridões, em função da cultivar de manga, podendo ser recomendado para o controle da podridão peduncular nas cvs. Haden e Palmer e também para reduzir a severidade da antracnose nas cvs. Haden e Keitt. A aplicação de fungicida não influenciou nos teores de sólidos, acidez titulável e “ratio” das cultivares de manga, exceto na Palmer que apresentou menor “ratio” quando tratada com fungicida. A aplicação de ethefon não interferiu no processo de amadurecimento da manga cv. Haden.

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simionato2009postharvestsemina Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Simionato, Eliane Maria Ravasi Stefano;Jerônimo, Elisangela Marques;Montes, Sonia Maria Nalesso Marangoni;Almeida, Aparecida Marques de;Arruda, Maria Cecília de;Fischer, Ivan Herman;Bertani, Rosemary Marques de Almeida;
Journal semina: ciências agrárias
Year 2009
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