Análise não destrutiva de pigmentos fotossintéticos em folhas de gergelim

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dc.contributor.authorRigon, Joao P. G. [UNESP]
dc.contributor.authorBeltrao, Napoleao E. de M.
dc.contributor.authorCapuani, Silvia [UNESP]
dc.contributor.authorde Brito Neto, Jose F.
dc.contributor.authorSilva, Fabiola V. de F.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.date.accessioned2014-05-20T15:33:25Z
dc.date.available2014-05-20T15:33:25Z
dc.date.issued2012-01-01
dc.description.abstractThe study aimed to relate the photosynthetic pigments, which were extracted in a laboratory and the readings were obtained by the portable chlorophyll meter ClorofiLOG 1030, by using mathematical models in sesame leaves. This work was conducted in December 2010, at Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Cotton, where feaf discs were removed to measure chlorophyll indexes through the portable chlorophyll meter. The same leaf discs were subjected to extraction of photosynthetic pigments, by using 5 mL dimethyl sulfoxide (DMSO), and were kept in a water bath at 70 degrees C for 30 min. Afterwards, an aliquot of 3 mL was removed to be read in a spectrophotometer at wavelengths of 470, 646 and 663 nm. Based on analytical results, mathematical models were adjusted by using the chlorophyll index to predict the levels of chlorophyll a, b, and total, and of carotenoids and their relationships. The study concluded that the portable chlorophyll meter ClorofiLOG 1030 can be used to estimate the concentration of photosynthetic pigments in sesame leaves with high precision, besides saving resources and time.en
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Agr, UNESP, BR-18610337 Botucatu, SP, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Algodao, BR-58428095 Campina Grande, PB, Brazil
dc.description.affiliationUFPB, Ctr Ciencias Agr, Areia, PB, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias Agr, UNESP, BR-18610337 Botucatu, SP, Brazil
dc.format.extent258-261
dc.identifierhttp://dx.doi.org/10.1590/S1415-43662012000300004
dc.identifier.citationRevista Brasileira de Engenharia Agricola E Ambiental. Joao Pessoa Pb: Universidade Federal da Paraíba (UFPB) Ccsa, v. 16, n. 3, p. 258-261, 2012.
dc.identifier.fileS1415-43662012000300004.pdf
dc.identifier.issn1415-4366
dc.identifier.scieloS1415-43662012000300004
dc.identifier.urihttp://hdl.handle.net/11449/42038
dc.identifier.wosWOS:000310686500004
dc.language.isopor
dc.publisherUniversidade Federal da Paraíba (UFPB) Ccsa
dc.relation.ispartofRevista Brasileira de Engenharia Agrícola e Ambiental
dc.relation.ispartofsjr0,541
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectchlorophyll meteren
dc.subjectchlorophyllen
dc.subjectcalibrationen
dc.titleAnálise não destrutiva de pigmentos fotossintéticos em folhas de gergelimpt
dc.title.alternativeNon destructive analysis of photosynthetic pigments in leaves of Sesamum indicum (L.)en
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbeaa/paboutj.htm
dcterms.rightsHolderUniversidade Federal da Paraíba (UFPB) Ccsa

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