EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS
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 physicochemic...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Fruticultura
2018-02-01
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| Series: | Revista Brasileira de Fruticultura |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100301&lng=en&tlng=en |
| _version_ | 1818648244735967232 |
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| author | Ivan Herman Fischer Matheus Froes de Moraes Maria Cecília de Arruda Palharini Mirian de Souza Fileti Juliana Cristina Sodário Cruz Ana Carolina Firmino |
| author_facet | Ivan Herman Fischer Matheus Froes de Moraes Maria Cecília de Arruda Palharini Mirian de Souza Fileti Juliana Cristina Sodário Cruz Ana Carolina Firmino |
| author_sort | Ivan Herman Fischer |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-17T01:15:21Z |
| format | Article |
| id | doaj.art-25cd543ef08c48b8931f21b5ddc00b73 |
| institution | Directory Open Access Journal |
| issn | 1806-9967 |
| language | English |
| last_indexed | 2024-12-17T01:15:21Z |
| publishDate | 2018-02-01 |
| publisher | Sociedade Brasileira de Fruticultura |
| record_format | Article |
| series | Revista Brasileira de Fruticultura |
| spelling | doaj.art-25cd543ef08c48b8931f21b5ddc00b732022-12-21T22:09:01ZengSociedade Brasileira de FruticulturaRevista Brasileira de Fruticultura1806-99672018-02-0140110.1590/0100-29452018408S0100-29452018000100301EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOSIvan Herman FischerMatheus Froes de MoraesMaria Cecília de Arruda PalhariniMirian de Souza FiletiJuliana Cristina Sodário CruzAna Carolina FirminoABSTRACT 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100301&lng=en&tlng=enpodridãoPersea americanaColletotrichummanejo fitossanitário |
| spellingShingle | Ivan Herman Fischer Matheus Froes de Moraes Maria Cecília de Arruda Palharini Mirian de Souza Fileti Juliana Cristina Sodário Cruz Ana Carolina Firmino EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS Revista Brasileira de Fruticultura podridão Persea americana Colletotrichum manejo fitossanitário |
| title | EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS |
| title_full | EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS |
| title_fullStr | EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS |
| title_full_unstemmed | EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS |
| title_short | EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS |
| title_sort | effect of conventional and alternative products on postharvest disease control in avocados |
| topic | podridão Persea americana Colletotrichum manejo fitossanitário |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100301&lng=en&tlng=en |
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