Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2018v31n4p65 |
Resumo: | The objective of this research was to evaluate the effect of treating oranges with potassium chloride (KCl), potassium hydroxide (KOH) and potassium silicate (K2O3Si) for green mold caused by Penicillium digitatum. The experimental design was completely randomized with five treatments and four replications, each with twenty fruits. For the experiment, the fruits were washed, superficially disinfected and pierced with a needle (2–3 mm deep). After 24 hours, the fruits were treated with inorganic salts or distilled water (control) and, 2 hours later, inoculated with 15 ?L of P. digitatum spore suspension. Green mold incidence, rate of lesion expansion, lesion size and sporulation area were evaluated at 96, 120 and 245 ha. At 245 hours after inoculation (hai), the KOH and K2O3Si (50 g.L-1) treatments were the most effective, affecting all evaluated variables and reducing the disease incidence by 80% and 36%, respectively, compared to the control. However, the KOH treatment caused wrinkling and dehydrated the peel, affecting the visual quality of the fruits. In conclusion, among the tested inorganic salts, the K2O3Si treatment (50 g.L-1) reduced the green mold in the citrus without negatively effecting fruit appearance, which indicates that this treatment is an option as a complementary measure to manage the disease. |
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Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orangeSais inorgânicos no controle em pós-colheita de Penicillium digitatum (Pers.) Sacc. em laranjaThe objective of this research was to evaluate the effect of treating oranges with potassium chloride (KCl), potassium hydroxide (KOH) and potassium silicate (K2O3Si) for green mold caused by Penicillium digitatum. The experimental design was completely randomized with five treatments and four replications, each with twenty fruits. For the experiment, the fruits were washed, superficially disinfected and pierced with a needle (2–3 mm deep). After 24 hours, the fruits were treated with inorganic salts or distilled water (control) and, 2 hours later, inoculated with 15 ?L of P. digitatum spore suspension. Green mold incidence, rate of lesion expansion, lesion size and sporulation area were evaluated at 96, 120 and 245 ha. At 245 hours after inoculation (hai), the KOH and K2O3Si (50 g.L-1) treatments were the most effective, affecting all evaluated variables and reducing the disease incidence by 80% and 36%, respectively, compared to the control. However, the KOH treatment caused wrinkling and dehydrated the peel, affecting the visual quality of the fruits. In conclusion, among the tested inorganic salts, the K2O3Si treatment (50 g.L-1) reduced the green mold in the citrus without negatively effecting fruit appearance, which indicates that this treatment is an option as a complementary measure to manage the disease.O objetivo da pesquisa foi avaliar o efeito da aplicação dos sais inorgânicos cloreto de potássio (KCl), hidróxido de potássio (KOH) e silicato de potássio (K2O3Si) sobre laranja no controle do bolor verde causado por Penicillium digitatum. O delineamento experimental utilizado foi inteiramente casualizado com cinco tratamentos e quatro repetições, cada uma composta por vinte frutos. Os frutos foram lavados, desinfestados e feridos com uma agulha (2-3 mm de profundidade), após 24 h foram tratados com os sais inorgânicos ou água destilada (controle) e 2 h após, inoculados por meio da deposição de 15 µL da suspensão de esporos de P. digitatum. Às 96, 120 e 245 horas após a inoculação (hai) foram realizadas as avaliações de incidência do bolor verde, taxa da expansão da lesão, tamanho da lesão e da área esporulante. Às 245 hai, entre os sais, o KOH e o K2O3Si foram os mais efetivos, afetando todas as variáveis avaliadas, reduzindo a incidência da doença em 80% e 36%, respectivamente, quando comparados à testemunha. Contudo, o tratamento com o KOH afetou a qualidade visual dos frutos, ocasionando enrugamento e desidratação da casca. Desse modo, conclui-se que, entre os sais inorgânicos testados, o K2O3Si (50 g.L-1) apresentou redução no bolor verde sem comprometer a qualidade visual do fruto, podendo ser incluído como uma medida complementar no manejo da doença.Universidade Federal de Santa Catarina2018-11-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2018v31n4p6510.5007/2175-7925.2018v31n4p65Biotemas; v. 31 n. 4 (2018); 65-692175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2018v31n4p65/37930Copyright (c) 2018 Anderson Eduardo Brunetto, Keilor da Rosa Dorneles, Cassio Muller, Leandro José Dallagnolinfo:eu-repo/semantics/openAccessBrunetto, Anderson EduardoDorneles, Keilor da RosaMuller, CassioDallagnol, Leandro José2019-03-01T15:49:20Zoai:periodicos.ufsc.br:article/58371Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2019-03-01T15:49:20Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange Sais inorgânicos no controle em pós-colheita de Penicillium digitatum (Pers.) Sacc. em laranja |
title |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange |
spellingShingle |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange Brunetto, Anderson Eduardo |
title_short |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange |
title_full |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange |
title_fullStr |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange |
title_full_unstemmed |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange |
title_sort |
Inorganic salts in the postharvest control of Penicillium digitatum (Pers.) Sacc. in orange |
author |
Brunetto, Anderson Eduardo |
author_facet |
Brunetto, Anderson Eduardo Dorneles, Keilor da Rosa Muller, Cassio Dallagnol, Leandro José |
author_role |
author |
author2 |
Dorneles, Keilor da Rosa Muller, Cassio Dallagnol, Leandro José |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Brunetto, Anderson Eduardo Dorneles, Keilor da Rosa Muller, Cassio Dallagnol, Leandro José |
description |
The objective of this research was to evaluate the effect of treating oranges with potassium chloride (KCl), potassium hydroxide (KOH) and potassium silicate (K2O3Si) for green mold caused by Penicillium digitatum. The experimental design was completely randomized with five treatments and four replications, each with twenty fruits. For the experiment, the fruits were washed, superficially disinfected and pierced with a needle (2–3 mm deep). After 24 hours, the fruits were treated with inorganic salts or distilled water (control) and, 2 hours later, inoculated with 15 ?L of P. digitatum spore suspension. Green mold incidence, rate of lesion expansion, lesion size and sporulation area were evaluated at 96, 120 and 245 ha. At 245 hours after inoculation (hai), the KOH and K2O3Si (50 g.L-1) treatments were the most effective, affecting all evaluated variables and reducing the disease incidence by 80% and 36%, respectively, compared to the control. However, the KOH treatment caused wrinkling and dehydrated the peel, affecting the visual quality of the fruits. In conclusion, among the tested inorganic salts, the K2O3Si treatment (50 g.L-1) reduced the green mold in the citrus without negatively effecting fruit appearance, which indicates that this treatment is an option as a complementary measure to manage the disease. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-29 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2018v31n4p65 10.5007/2175-7925.2018v31n4p65 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2018v31n4p65 |
identifier_str_mv |
10.5007/2175-7925.2018v31n4p65 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2018v31n4p65/37930 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 31 n. 4 (2018); 65-69 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940554425892864 |