Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/3758 |
Resumo: | Three experiments were conducted so that the first one had as objective to evaluate the effects of the foliar spraying of sources and doses of soluble liquid potassium silicate (Meta e Sili-K) on the coffee leaf rust, compounds of defense, production and quality and the coffee beverage. The second experiment aimed to evaluate the association of the better source of soluble liquid silicon (Sili-K) with fungicide in the control of diseases, and the third experiment evaluated the absorption of micronutrients when they are associated with Sili-K in the spraying solution and comparing it with other solutions. It was possible to conclude that the foliar spraying with soluble liquid silicon had influenced the ratio of different stages of the maturation of the fruits that affected the income and production of coffee. The Meta was significantly inferior to Sili-K when reducing high sieve in the high production harvest while the Sili-K raised the ratio of these sieve in the low production harvest; the best effects were observed between the doses of 1710 and 5000 mg L-1. In the same rate of dose and independent of the source used, there was improvement of the grades of "acidity" and "balance" of the beverage in the low harvest, and of the "body" of the beverage independent of the harvest. Contents of Si and K in leaf were indirectly related with the quality of the beverage in the low production harvest and in the relaxation of the biennial of the coffee production. The sources and doses of potassium silicate did not raise from the foliar contents of Si and K in spite of their contents to be positively related to the production the next harvest. The Sili-K has showed itself superior to Meta in the reduction of the incidence of the coffee rust, however, there was reduction of disease severity independent from the source. The images of electronic microscopy made evident a larger re-covering of the foliar surfaces with increase of the Si doses. The increase of Si and K contents and the reduction of the contents of total phenols are connected with the rise of productivity in the following harvest and can be further considered indexes of productive potential of coffee. In the association of 2 L ha-1 of soluble liquid silicon (Sili-K) with half of the prescribed dose of fungicide (750ml ha-1 of epoxiconazole + pyraclostrobin) in the solution, rust and brown-eye-spot were controlled similar to the prescribed dose of fungicide (1,5 L ha-1 and 1 L ha-1 in the 1st and 2nd application respectively).The occurrence of foliar diseases was not related to the foliar contents of K or Si. The mixture of micronutrients with soluble liquid silicon in solution had increased the absorption of Cu, 30 days after the application and it was similar to the Viçosa solution concerning to the supplying of B, Zn and Mn. |
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Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvelNutrition, protection and quality of the beverage of coffee under the spraying of soluble liquid potassium silicateCafé - Silicato de potássioCafé - QualidadeCafé - FerrugemCNPQ_NÃO_INFORMADOThree experiments were conducted so that the first one had as objective to evaluate the effects of the foliar spraying of sources and doses of soluble liquid potassium silicate (Meta e Sili-K) on the coffee leaf rust, compounds of defense, production and quality and the coffee beverage. The second experiment aimed to evaluate the association of the better source of soluble liquid silicon (Sili-K) with fungicide in the control of diseases, and the third experiment evaluated the absorption of micronutrients when they are associated with Sili-K in the spraying solution and comparing it with other solutions. It was possible to conclude that the foliar spraying with soluble liquid silicon had influenced the ratio of different stages of the maturation of the fruits that affected the income and production of coffee. The Meta was significantly inferior to Sili-K when reducing high sieve in the high production harvest while the Sili-K raised the ratio of these sieve in the low production harvest; the best effects were observed between the doses of 1710 and 5000 mg L-1. In the same rate of dose and independent of the source used, there was improvement of the grades of "acidity" and "balance" of the beverage in the low harvest, and of the "body" of the beverage independent of the harvest. Contents of Si and K in leaf were indirectly related with the quality of the beverage in the low production harvest and in the relaxation of the biennial of the coffee production. The sources and doses of potassium silicate did not raise from the foliar contents of Si and K in spite of their contents to be positively related to the production the next harvest. The Sili-K has showed itself superior to Meta in the reduction of the incidence of the coffee rust, however, there was reduction of disease severity independent from the source. The images of electronic microscopy made evident a larger re-covering of the foliar surfaces with increase of the Si doses. The increase of Si and K contents and the reduction of the contents of total phenols are connected with the rise of productivity in the following harvest and can be further considered indexes of productive potential of coffee. In the association of 2 L ha-1 of soluble liquid silicon (Sili-K) with half of the prescribed dose of fungicide (750ml ha-1 of epoxiconazole + pyraclostrobin) in the solution, rust and brown-eye-spot were controlled similar to the prescribed dose of fungicide (1,5 L ha-1 and 1 L ha-1 in the 1st and 2nd application respectively).The occurrence of foliar diseases was not related to the foliar contents of K or Si. The mixture of micronutrients with soluble liquid silicon in solution had increased the absorption of Cu, 30 days after the application and it was similar to the Viçosa solution concerning to the supplying of B, Zn and Mn.Foram conduzidos três experimentos sendo que o primeiro teve o objetivo de avaliar os efeitos da aplicação foliar de fontes e doses de silicato de potássio líquido solúvel (Meta e Sili-K) sobre a ferrugem, compostos de defesa, produção e qualidade e de bebida do café. O segundo objetivou avaliar a associação da melhor fonte de silício líquido solúvel (Sili-K), com fungicida no controle de doenças e o terceiro foi avaliar a absorção de micronutrientes, quando estes estiverem associados ao Sili-K na calda de pulverização e comparar com outras caldas. Foi possível concluir que a aplicação foliar com silício líquido solúvel influenciaram a proporção dos diferentes estádios de maturação dos frutos, que afetou o rendimento e produção do café. O Meta foi significativamente inferior ao Sili-K, ao reduzir as peneiras altas na safra de alta produção enquanto o Sili-K elevou a proporção destas na safra de baixa produção; os melhores efeitos foram observados entre as doses de 1710 e 5000 mg L-1. Na mesma faixa de dose e independente da fonte utilizada, houve melhoria das notas de "acidez" e "balanço" da bebida na safra de baixa e do "corpo" da bebida, independente da safra. Os teores de Si e K na folha relacionaram indiretamente com a qualidade de bebida na safra de baixa produção e na amenização da bienalidade de produção do café. As fontes e doses de silicato de potássio líquido solúvel não elevaram dos teores foliares de Si e K, apesar dos teores destes, relacionarem, positivamente, com a produção da safra seguinte. O Sili-K se mostrou superior ao Meta na redução da incidência da ferrugem, no entanto, houve redução da severidade da doença independente da fonte. As imagens de microscopia eletrônica evidenciaram um maior recobrimento das superfícies foliares com aumento das doses de Si. O aumento dos teores de Si e K e a redução dos teores de fenóis totais estão ligados à elevação da produtividade na safra seguinte, podendo, futuramente ser considerados índices de potencial produtivo do café. Na associação de 2L ha-1 silício líquido solúvel (Sili-K) com a metade da dose recomendada de fungicida (750mL ha-1 do epoxiconazole + pyraclostrobin) na calda, houve controle da ferrugem e a cercosporiose semelhante à dose recomendada do fungicida (1,5 L ha-1 e 1,0 L ha-1 na 1ª e 2ª aplicação, respectivamente). A ocorrência das doenças foliares não esteve relacionado com os teores foliares de K ou Si. A mistura de micronutrientes com silício líquido solúvel na calda aumentou a absorção de Cu, 30 dias após a aplicação, e foi semelhante à Calda Viçosa quanto ao fornecimento de B, Zn e Mn.UNIVERSIDADE FEDERAL DE LAVRASDCS - Programa de Pós-graduaçãoUFLABRASILCarvalho, Janice Guedes deGuimarães, Paulo Tácito GontijoChalfoun, Sara MariaCoelho, LísiasSilva, Enilson de BarrosFigueiredo, Felipe Campos2014-09-17T20:37:17Z2014-09-17T20:37:17Z2014-09-172007-12-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfFIGUEIREDO, F. C. Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel. 2007. 97 p. Tese (Doutorado em Ciência do Solo)-Universidade Federal de Lavras, Lavras, 2007.http://repositorio.ufla.br/jspui/handle/1/3758info:eu-repo/semantics/openAccessporreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLA2023-05-11T13:21:54Zoai:localhost:1/3758Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-11T13:21:54Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel Nutrition, protection and quality of the beverage of coffee under the spraying of soluble liquid potassium silicate |
title |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel |
spellingShingle |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel Figueiredo, Felipe Campos Café - Silicato de potássio Café - Qualidade Café - Ferrugem CNPQ_NÃO_INFORMADO |
title_short |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel |
title_full |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel |
title_fullStr |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel |
title_full_unstemmed |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel |
title_sort |
Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel |
author |
Figueiredo, Felipe Campos |
author_facet |
Figueiredo, Felipe Campos |
author_role |
author |
dc.contributor.none.fl_str_mv |
Carvalho, Janice Guedes de Guimarães, Paulo Tácito Gontijo Chalfoun, Sara Maria Coelho, Lísias Silva, Enilson de Barros |
dc.contributor.author.fl_str_mv |
Figueiredo, Felipe Campos |
dc.subject.por.fl_str_mv |
Café - Silicato de potássio Café - Qualidade Café - Ferrugem CNPQ_NÃO_INFORMADO |
topic |
Café - Silicato de potássio Café - Qualidade Café - Ferrugem CNPQ_NÃO_INFORMADO |
description |
Three experiments were conducted so that the first one had as objective to evaluate the effects of the foliar spraying of sources and doses of soluble liquid potassium silicate (Meta e Sili-K) on the coffee leaf rust, compounds of defense, production and quality and the coffee beverage. The second experiment aimed to evaluate the association of the better source of soluble liquid silicon (Sili-K) with fungicide in the control of diseases, and the third experiment evaluated the absorption of micronutrients when they are associated with Sili-K in the spraying solution and comparing it with other solutions. It was possible to conclude that the foliar spraying with soluble liquid silicon had influenced the ratio of different stages of the maturation of the fruits that affected the income and production of coffee. The Meta was significantly inferior to Sili-K when reducing high sieve in the high production harvest while the Sili-K raised the ratio of these sieve in the low production harvest; the best effects were observed between the doses of 1710 and 5000 mg L-1. In the same rate of dose and independent of the source used, there was improvement of the grades of "acidity" and "balance" of the beverage in the low harvest, and of the "body" of the beverage independent of the harvest. Contents of Si and K in leaf were indirectly related with the quality of the beverage in the low production harvest and in the relaxation of the biennial of the coffee production. The sources and doses of potassium silicate did not raise from the foliar contents of Si and K in spite of their contents to be positively related to the production the next harvest. The Sili-K has showed itself superior to Meta in the reduction of the incidence of the coffee rust, however, there was reduction of disease severity independent from the source. The images of electronic microscopy made evident a larger re-covering of the foliar surfaces with increase of the Si doses. The increase of Si and K contents and the reduction of the contents of total phenols are connected with the rise of productivity in the following harvest and can be further considered indexes of productive potential of coffee. In the association of 2 L ha-1 of soluble liquid silicon (Sili-K) with half of the prescribed dose of fungicide (750ml ha-1 of epoxiconazole + pyraclostrobin) in the solution, rust and brown-eye-spot were controlled similar to the prescribed dose of fungicide (1,5 L ha-1 and 1 L ha-1 in the 1st and 2nd application respectively).The occurrence of foliar diseases was not related to the foliar contents of K or Si. The mixture of micronutrients with soluble liquid silicon in solution had increased the absorption of Cu, 30 days after the application and it was similar to the Viçosa solution concerning to the supplying of B, Zn and Mn. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-12-13 2014-09-17T20:37:17Z 2014-09-17T20:37:17Z 2014-09-17 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
FIGUEIREDO, F. C. Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel. 2007. 97 p. Tese (Doutorado em Ciência do Solo)-Universidade Federal de Lavras, Lavras, 2007. http://repositorio.ufla.br/jspui/handle/1/3758 |
identifier_str_mv |
FIGUEIREDO, F. C. Nutrição, proteção e qualidade da bebida do café sob pulverizações de silicato de potássio líquido solúvel. 2007. 97 p. Tese (Doutorado em Ciência do Solo)-Universidade Federal de Lavras, Lavras, 2007. |
url |
http://repositorio.ufla.br/jspui/handle/1/3758 |
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por |
language |
por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
UNIVERSIDADE FEDERAL DE LAVRAS DCS - Programa de Pós-graduação UFLA BRASIL |
publisher.none.fl_str_mv |
UNIVERSIDADE FEDERAL DE LAVRAS DCS - Programa de Pós-graduação UFLA BRASIL |
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reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
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Universidade Federal de Lavras (UFLA) |
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UFLA |
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UFLA |
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Repositório Institucional da UFLA |
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Repositório Institucional da UFLA |
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Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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