Elicitors on the control of anthracnose and post-harvest quality in papaya fruits1

ABSTRACT Papaya is one of the most grown and consumed fruits in the world. However, post-harvest diseases are responsible for more than 50 % of losses, including anthracnose, caused by Colletotrichum gloesporioides, which promotes necrotic and rounded lesions and reduces fruit quality. Alternative p...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Pesquisa agropecuária tropical 2017-06, Vol.47 (2), p.211-217
Hauptverfasser: Demartelaere, Andréa Celina Ferreira, Nascimento, Luciana Cordeiro do, Guimarães, George Henrique Camêlo, Silva, Juliete Araújo da, Luna, Romulo Gil de
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:ABSTRACT Papaya is one of the most grown and consumed fruits in the world. However, post-harvest diseases are responsible for more than 50 % of losses, including anthracnose, caused by Colletotrichum gloesporioides, which promotes necrotic and rounded lesions and reduces fruit quality. Alternative products have been widely investigated in the control of pathogens. This study aimed at evaluating the efficiency of elicitors in the control of anthracnose, as well as their effect on post-harvest quality, in papaya fruits. The fruits were disinfested and immersed in acibenzolar-S-methyl, potassium phosphite, Rocksil®, Agro-mos®, Ecolife®, sterilized distilled water and prochloraz, inoculated with C. gloesporioides and stored. Potassium phosphite, Rocksil®, Ecolife® and prochloraz resulted in the smallest diameters of lesions, and, consequently, in a greater protection and enzymatic activity. The fruits treated with Rocksil® and Ecolife® maintained the lowest levels of soluble solids and titratable acidity. Potassium phosphite, Rocksil® and Ecolife® are effective in controlling anthracnose, do not change the appearance and preserve the post-harvest quality of papaya fruits, and, therefore, may be used as an alternative to commercial fungicides. RESUMO Elicitores no controle de antracnose e qualidade pós-colheita em frutos de mamoeiro O mamão é uma das frutas mais cultivadas e consumidas no mundo. Entretanto, as doenças pós-colheita são responsáveis por mais de 50 % de perdas, dentre elas a antracnose, causada por Colletotrichum gloesporioides, que promove lesões necróticas e arredondadas e reduz a qualidade dos frutos. Produtos alternativos têm sido amplamente investigados no controle de patógenos. Objetivou-se avaliar a eficiência de elicitores no controle de antracnose e seu efeito na qualidade pós-colheita, em frutos de mamoeiro. Os frutos foram desinfestados e imersos em acibenzolar-S-methyl, fosfito de potássio, Rocksil®, Agro-mos®, Ecolife®, água destilada esterilizada e prochloraz, inoculados com C. gloesporioides e armazenados. Fosfito de potássio, Rocksil®, Ecolife® e prochloraz resultaram nos menores diâmetros das lesões e, consequentemente, em maior proteção e atividade enzimática. Os frutos tratados com Rocksil® e Ecolife® mantiveram os menores teores de sólidos solúveis e acidez titulável. Fosfito de potássio, Rocksil® e Ecolife® são eficazes no controle de antracnose, não alteram a aparência e preservam a qualidade pós-colheita de frutos de mamoeir
ISSN:1983-4063
1983-4063
DOI:10.1590/1983-40632016v4745093