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Postharvest biological control of brown rot in peaches after cold storage preceded by preharvest chemical control 1

Authors :
Elizandra Pivotto Pavanello
Auri Brackmann
Fabio Rodrigo Thewes
Thiago Liberalesso Venturini
Anderson Weber
Elena Blume
Source :
Revista Ceres, Vol 62, Iss 6, Pp 539-545 (2015)
Publication Year :
2015
Publisher :
Universidade Federal De Viçosa, 2015.

Abstract

ABSTRACT Pathogenic fungi cause skin darkening and peach quality depreciation in post harvest. Therefore, alternative techniques to chemical treatment are necessary in order to reduce risks to human health. The aim of this study was to evaluate the effect of the application of Trichoderma harzianum in association with different fungicides applied before harvest to 'Eldorado' peaches for brown rot control and other quality parameters during storage. The treatments consisted of five preharvest fungicide applications (control, captan, iprodione, iminoctadine and tebuconazole) associated with postharvest application of T. harzianum, after cold storage (with and without application), in three evaluation times (zero, two and four days at 20 °C), resulting in a 5x2x3 factorial design. The application of T. harzianum only brought benefits to the control of brown rot when combined with the fungicide captan, at zero day shelf life. After two days, there was a greater skin darkening in peaches treated with T. harzianum compared with peaches without the treatment, except for peaches treated with the fungicide iprodione and T. harzianum The application of T. harzianum during postharvest showed no benefits for the control of brown rot, however, the association with fungicides reduced the incidence of Rhizopus stolonifer during the shelf life.

Details

Language :
English, Portuguese
ISSN :
21773491 and 0034737X
Volume :
62
Issue :
6
Database :
Directory of Open Access Journals
Journal :
Revista Ceres
Publication Type :
Academic Journal
Accession number :
edsdoj.5a3b60d398564b318b9e6491217f0da1
Document Type :
article
Full Text :
https://doi.org/10.1590/0034-737X201562060005