| Full text | |
| Author(s): |
Ivan Herman Fischer
[1]
;
Matheus Froes de Moraes
[2]
;
Maria Cecília de Arruda Palharini
[3]
;
Mirian de Souza Fileti
[4]
;
Juliana Cristina Sodário Cruz
[5]
;
Ana Carolina Firmino
[6]
Total Authors: 6
|
| Affiliation: | [1] Agencia Paulista Tecnol Agronegocios, Polo Reg Ctr Oeste, Bauru, SP - Brazil
[2] FIB, BR-17056120 Bauru, SP - Brazil
[3] Agência Paulista de Tecnologia dos Agronegócios. Polo Regional Centro Oeste - Brasil
[4] Agencia Paulista Tecnol Agronegocios, Polo Reg Ctr Oeste, Tech Support Search, Bauru, SP - Brazil
[5] Agência Paulista de Tecnologia dos Agronegócios. Polo Regional Centro Oeste - Brasil
[6] Univ Estadual Paulista, Fac Ciencias Agr & Tecnol, Campus Expt Dracena, Dracena, SP - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Revista Brasileira de Fruticultura; v. 40, n. 1 2018-02-15. |
| Abstract | |
ABSTRACT Postharvest diseases constitute a serious problem for avocado commercialization. Thus, the present study aimed to evaluate the effect of conventional and alternative products in controlling diseases affecting ‘Hass’ avocados in the field and in the postharvest by carrying out physicochemical characterization of fruits subjected to postharvest treatments. In the field, besides the management adopted by the farmer, seven products were sprayed three times during fruiting for evaluation. Postharvest products were diluted in water or in oxidized polyethylene wax and shellac. Water treatments with potassium phosphite, Soil-Set®, chlorine dioxide, thyme essential oil, sodium bicarbonate, lemon grass essential oil and thiabendazole reduced the incidence of diseased fruits, and anthracnose, the main disease, was controlled with sodium bicarbonate, lemon grass essential oil and thiabendazole. Greater soluble solids content was found for control (water), chlorine dioxide, acibenzolar-S-methyl and thiabendazole. For the products that reduced anthracnose, there was no correlation between the disease and the physicochemical parameters, evidencing that the disease control is not associated with delayed ripening. For wax treatments, diseases were not controlled, and the fruits presented lower titratable acidity with thyme essential oil, sodium bicarbonate, control (wax), acibenzolar-S-methyl and lemon grass essential oil. Control and thyme essential oil were highlighted for maintaining the green coloration of the fruit skin for the shortest period. Under field conditions, azoxystrobin, thiabendazole, difenoconazole+azoxystrobin and acibenzolar-S-methyl+azoxystrobin reduced the occurrence of diseased fruits, while anthracnose control was only obtained with azoxystrobin. (AU) | |
| FAPESP's process: | 14/11897-4 - Characterization, epidemiology and control of postharvest diseases of avocado Hass |
| Grantee: | Ivan Herman Fischer |
| Support Opportunities: | Regular Research Grants |