Calcium partially relieves the deleterius effects of hypoxia on a maize cultivar selected for waterlogging tolerance

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dc.audienceProfesional
dc.audienceInvestigador
dc.coverageBrasil
dc.creatorRomero Ferrer, Jorge Luis
dc.creatorMagalhaes, Paulo Cesar
dc.creatorDonizeti Alves, José
dc.creatorVasconcellos, Carlos Alberto
dc.creatorDelú Filho, Nelson
dc.creatorDeitos Fries, Daniela
dc.creatorMurad Magalhaes, Marcelo
dc.creatorCorsetti Purcino, Antonio Alvaro
dc.date2018-09-08T17:21:05Z
dc.date2018-09-08T17:21:05Z
dc.date2005
dc.date.accessioned2026-06-27T04:35:56Z
dc.descriptionLow soil oxygen concentrations due to waterlogging or transient flooding severely reduce maize production. However, genotypes with tolerance or even resistance to hypoxia develop morphological and biochemical adaptation mechanisms which may prove to be useful criteria for the selection and breeding of new improved genotypes. The objective of this work was to evaluate the effect of levels and modes of application of calcium sources on biomass yield, the contents of total soluble sugars and reduced sugars and on the activities of invertase isoforms and phosphoenolpyruvate carboxylase, in a maize variety (BRS 4154) derived from the 14th selection cycle for tolerance to transient soil flooding conditions, when cultivated under waterlogging conditions. The study was carried out in a greenhouse, utilizing 20 kg pots, filled with a lowland soil. The effects of two sources of calcium (CaCl2 , 300 kg ha-1 and CaSO4 , 500 and 1.500 kg ha-1) and three modes of application (applied 8 cm below surface, mixed with the whole soil volume and surface application) were tested in soils kept at field capacity and waterlogged after plants reached growth stage V6. Above ground biomass yield, the contents of total soluble sugars and reducing sugars and the activities of the neutral citosol (INC), acid vacuolar (IAV), acid cell wall invertases and phosphoenolpyruvate carboxylase were determined at the onset of flowering. Calcium application partially relieved the deleterious effect of waterlogging on biomass yield and the activities of INC, IAPC and PEPcase.
dc.descriptionMaíz
dc.descriptionZea mays
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.identifierhttp://hdl.handle.net/20.500.12324/483
dc.identifier65772
dc.identifierreponame:Biblioteca Digital Agropecuaria de Colombia
dc.identifierrepourl:https://repository.agrosavia.co
dc.identifierinstname:Corporación colombiana de investigación agropecuaria AGROSAVIA
dc.identifier.urihttp://hdl.handle.net/123456789/32602
dc.languageeng
dc.publisherABMS
dc.relationRevista Brasileira de milho e sorgo (Brasil)
dc.relation3
dc.relation381
dc.relation389
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsAcceso a texto completo
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRevista Revista Brasileira de Milho e Sorgo; Vol. 4, Núm. 3 (2005): Revista Revista Brasileira de Milho e Sorgo ;p. 381-389
dc.subjectGenética vegetal y fitomejoramiento - F30
dc.subjectMaíz
dc.subjectAnegamiento
dc.subjectCalcio
dc.subjectFrutofuranosidasa
dc.subjectTransitorios
dc.thumbnailhttps://repository.agrosavia.co/bitstreams/49f33279-dbe4-4b19-98bd-d9178fcf007d/download
dc.titleCalcium partially relieves the deleterius effects of hypoxia on a maize cultivar selected for waterlogging tolerance
dc.typeArtículo científico

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