Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG

Detalhes bibliográficos
Autor(a) principal: Domiciano, Débora
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/10501
Resumo: The rubber tree, Hevea brasiliensis (Willd. ex. Adr. de Juss.) Is the main species of its genus economically exploited for the production of natural rubber. Among the rubber tree clones, RRIM 600 stands out for its good productivity and adapt to various weather patterns. Widely cultivated in Minas Gerais the RRIM 600 clone have shown good adaptation to this region, mainly characterized by having a well-defined dry season and therefore unfavorable to the development of the fungus evil leaves (Microcyclus ulei (P. Henn.) Arx.), limiting factor to the expansion of rubber trees in Brazil. In order to understand the physiological aspects related to productivity RRIM 600 clone grown in the southern region of Minas Gerais, were assessed the effects of stimulation with Ethrel® on the enzymes involved in sucrose hydrolysis process in tapping tissues. It was also evaluated relationship of the stimulation of latex based on yields of the biochemical characteristics, based on the activities of enzymes neutral cytosol invertase, vacuolar acid invertase and cell wall invertase, after two periods of application of the stimulant. For the analyzes, were used bark of caule samples collected from October 2014 to January 2015. The study was conducted on commercial planting of rubber tree eight years, in municipality of Nepomuceno-MG. Production data were obtained in the respective months, by tapping the bark in system ½ spiral (S) between 2 days to 3 days (d2 / d3), productivity was expressed as the ratio of dry rubber production in grams (gm) by area of the tapping section. The productivity was expressed by the ratio of dry rubber (bs) production gm to area tapping panel (cm2) and (bs)/plant /tapping gm. It was also given the obstruction index of latex vessel. The evaluated biochemical characteristics, the activities of enzymes vacuolar acid invertase, neutral cytosol invertase showed the significant increase in plants that received treatment with stimulant. Similar behavior evaluated for production bs/plant/tapping in grams and to the production area by tapping panel, whereas the index obstruction in the trees stimulated with Ethrel® decreased. The data confirm the positive correlation between the uses of stimulants the basis of ethylene and productive performance of clone RRIM 600.
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spelling Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MGSeringueiraBorracha naturalLátexEthrel®InvertaseRubber plantsNatural rubberLatexFisiologia vegetalThe rubber tree, Hevea brasiliensis (Willd. ex. Adr. de Juss.) Is the main species of its genus economically exploited for the production of natural rubber. Among the rubber tree clones, RRIM 600 stands out for its good productivity and adapt to various weather patterns. Widely cultivated in Minas Gerais the RRIM 600 clone have shown good adaptation to this region, mainly characterized by having a well-defined dry season and therefore unfavorable to the development of the fungus evil leaves (Microcyclus ulei (P. Henn.) Arx.), limiting factor to the expansion of rubber trees in Brazil. In order to understand the physiological aspects related to productivity RRIM 600 clone grown in the southern region of Minas Gerais, were assessed the effects of stimulation with Ethrel® on the enzymes involved in sucrose hydrolysis process in tapping tissues. It was also evaluated relationship of the stimulation of latex based on yields of the biochemical characteristics, based on the activities of enzymes neutral cytosol invertase, vacuolar acid invertase and cell wall invertase, after two periods of application of the stimulant. For the analyzes, were used bark of caule samples collected from October 2014 to January 2015. The study was conducted on commercial planting of rubber tree eight years, in municipality of Nepomuceno-MG. Production data were obtained in the respective months, by tapping the bark in system ½ spiral (S) between 2 days to 3 days (d2 / d3), productivity was expressed as the ratio of dry rubber production in grams (gm) by area of the tapping section. The productivity was expressed by the ratio of dry rubber (bs) production gm to area tapping panel (cm2) and (bs)/plant /tapping gm. It was also given the obstruction index of latex vessel. The evaluated biochemical characteristics, the activities of enzymes vacuolar acid invertase, neutral cytosol invertase showed the significant increase in plants that received treatment with stimulant. Similar behavior evaluated for production bs/plant/tapping in grams and to the production area by tapping panel, whereas the index obstruction in the trees stimulated with Ethrel® decreased. The data confirm the positive correlation between the uses of stimulants the basis of ethylene and productive performance of clone RRIM 600.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)A Seringueira, Hevea brasiliensis (Willd. ex.Adr. deJuss.), é a principal espécie de seu gênero explorada economicamente pela produção de borracha natural. Dentre os clones de seringueira, o RRIM 600 se destaca por sua boa produtividade e adaptação a vários padrões climáticos e têm demonstrado boa adaptação à região Sul de Minas Gerais, caracterizada principalmente por possuir um período seco bem definido, desfavorável ao desenvolvimento do fungo causador do mal das folhas – Microcyclus ulei (P. Henn.) Arx.- fator limitante à expansão da heiveicultura no Brasil. Com o intuito de compreender melhor os aspectos fisiológicos relacionados à produtividade do clone RRIM 600 nessa região, foram avaliados os efeitos da estimulação com Ethrel® sobre as enzimas envolvidas no processo de hidrólise da sacarose em tecidos da casca da seringueira e sua relação com a produção de látex, a partir da caracterização bioquímica, com base nas atividades das enzimas invertase neutra do citosol, invertase ácida do vacúolo e invertase ácida da parede celular, após dois períodos de aplicação do estimulante. Para as análises, foram utilizadas amostras da casca de seringueira coletadas nos meses de outubro de 2014 a janeiro de 2015. O trabalho foi conduzido em plantio comercial de seringueira de oito anos, localizado no município de Nepomuceno - MG. Os dados de produção foram obtidos nos respectivos meses, por meio de sangrias no sistema S ½ (d2/d3), a produtividade foi expressa através da razão da produção de borracha seca em g.árvores.sangria-1 e g.cm-2 de seção.sangria-1, além disso, também foi avaliado o índice de obstrução dos vasos laticíferos. Das características bioquímicas avaliadas, as atividades das enzimas invertase ácida do vacúolo e invertase neutra do citosol apresentaram aumento significativo nas plantas que receberam o tratamento com estimulante. Comportamento semelhante foi encontrado para a produção em g.árvores.sangria-1 e g.cm-2 de seção.sangria-1, ao passo que o índice de obstrução diminuiu nas árvores que foram estimuladas com Ethrel®. Os dados obtidos confirmam a correlação positiva entre o uso de estimulantes à base de etileno e o desempenho produtivo do clone RRIM 600.Universidade Federal de LavrasPrograma de Pós-Graduação em Agronomia/Fisiologia VegetalUFLAbrasilDepartamento de BiologiaOliveira, Luiz Edson Mota deDelú Filho, NelsonCárdenas, Hilda Beatriz WencomoDomiciano, Débora2015-10-20T11:44:37Z2015-10-20T11:44:37Z2015-10-202015-02-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfDOMICIANO, D. Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG. 2015. 77 p. Dissertação (Mestrado em Agronomia/Fisiologia Vegetal)-Universidade Federal de Lavras, Lavras, 2015.http://repositorio.ufla.br/jspui/handle/1/10501porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLA2023-04-27T17:50:37Zoai:localhost:1/10501Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-04-27T17:50:37Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
title Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
spellingShingle Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
Domiciano, Débora
Seringueira
Borracha natural
Látex
Ethrel®
Invertase
Rubber plants
Natural rubber
Latex
Fisiologia vegetal
title_short Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
title_full Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
title_fullStr Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
title_full_unstemmed Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
title_sort Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG
author Domiciano, Débora
author_facet Domiciano, Débora
author_role author
dc.contributor.none.fl_str_mv Oliveira, Luiz Edson Mota de
Delú Filho, Nelson
Cárdenas, Hilda Beatriz Wencomo
dc.contributor.author.fl_str_mv Domiciano, Débora
dc.subject.por.fl_str_mv Seringueira
Borracha natural
Látex
Ethrel®
Invertase
Rubber plants
Natural rubber
Latex
Fisiologia vegetal
topic Seringueira
Borracha natural
Látex
Ethrel®
Invertase
Rubber plants
Natural rubber
Latex
Fisiologia vegetal
description The rubber tree, Hevea brasiliensis (Willd. ex. Adr. de Juss.) Is the main species of its genus economically exploited for the production of natural rubber. Among the rubber tree clones, RRIM 600 stands out for its good productivity and adapt to various weather patterns. Widely cultivated in Minas Gerais the RRIM 600 clone have shown good adaptation to this region, mainly characterized by having a well-defined dry season and therefore unfavorable to the development of the fungus evil leaves (Microcyclus ulei (P. Henn.) Arx.), limiting factor to the expansion of rubber trees in Brazil. In order to understand the physiological aspects related to productivity RRIM 600 clone grown in the southern region of Minas Gerais, were assessed the effects of stimulation with Ethrel® on the enzymes involved in sucrose hydrolysis process in tapping tissues. It was also evaluated relationship of the stimulation of latex based on yields of the biochemical characteristics, based on the activities of enzymes neutral cytosol invertase, vacuolar acid invertase and cell wall invertase, after two periods of application of the stimulant. For the analyzes, were used bark of caule samples collected from October 2014 to January 2015. The study was conducted on commercial planting of rubber tree eight years, in municipality of Nepomuceno-MG. Production data were obtained in the respective months, by tapping the bark in system ½ spiral (S) between 2 days to 3 days (d2 / d3), productivity was expressed as the ratio of dry rubber production in grams (gm) by area of the tapping section. The productivity was expressed by the ratio of dry rubber (bs) production gm to area tapping panel (cm2) and (bs)/plant /tapping gm. It was also given the obstruction index of latex vessel. The evaluated biochemical characteristics, the activities of enzymes vacuolar acid invertase, neutral cytosol invertase showed the significant increase in plants that received treatment with stimulant. Similar behavior evaluated for production bs/plant/tapping in grams and to the production area by tapping panel, whereas the index obstruction in the trees stimulated with Ethrel® decreased. The data confirm the positive correlation between the uses of stimulants the basis of ethylene and productive performance of clone RRIM 600.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-20T11:44:37Z
2015-10-20T11:44:37Z
2015-10-20
2015-02-25
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv DOMICIANO, D. Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG. 2015. 77 p. Dissertação (Mestrado em Agronomia/Fisiologia Vegetal)-Universidade Federal de Lavras, Lavras, 2015.
http://repositorio.ufla.br/jspui/handle/1/10501
identifier_str_mv DOMICIANO, D. Efeitos do Ethrel® sobre a produção e atividade das invertases em seringueira, clone RRIM 600, cultivada em Nepomuceno-MG. 2015. 77 p. Dissertação (Mestrado em Agronomia/Fisiologia Vegetal)-Universidade Federal de Lavras, Lavras, 2015.
url http://repositorio.ufla.br/jspui/handle/1/10501
dc.language.iso.fl_str_mv por
language por
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 Lavras
Programa de Pós-Graduação em Agronomia/Fisiologia Vegetal
UFLA
brasil
Departamento de Biologia
publisher.none.fl_str_mv Universidade Federal de Lavras
Programa de Pós-Graduação em Agronomia/Fisiologia Vegetal
UFLA
brasil
Departamento de Biologia
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv 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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