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Effect of rice grain (Oryza sativa L.) enrichment with selenium on foliar leaf gas exchanges and accumulation of nutrients

2021Journal article Open access
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dc.contributor.authorMarques, Ana Coelho
dc.contributor.authorLidon, Fernando C.
dc.contributor.authorCoelho, Ana Rita F.
dc.contributor.authorPessoa, Cláudia campos
dc.contributor.authorLuís, Inês Carmo
dc.contributor.authorCampos, Paula Scotti
dc.contributor.authorSimões, Manuela
dc.contributor.authorAlmeida, Ana Sofia
dc.contributor.authorPessoa, Maria F.
dc.contributor.authorGalhano, Carlos
dc.contributor.authorGuerra, Mauro
dc.contributor.authorLeitão, Roberta G.
dc.contributor.authorLegoinha, Paulo
dc.contributor.authorRamalho, José C.
dc.contributor.authorSemedo, José N.
dc.contributor.authorRodrigues, Ana Paula
dc.contributor.authorRibeiro-Barros, Ana
dc.contributor.authorSilva, Maria José
dc.date.accessioned2021-05-26T10:01:22Z
dc.date.available2021-05-26T10:01:22Z
dc.date.issued2021
dc.description.abstractAn agronomic itinerary for Se biofortification of two rice cultivars (Ariete and Ceres) through foliar fertilization with sodium selenate and sodium selenite with different concentrations (25, 50, 75 and 100 g Se.ha􀀀1), was implemented in experimental fields. The selenium toxicity threshold was not exceeded, as shown by the eco-physiological data obtained through leaf gas exchanges. The highest Se enrichment in paddy grains was obtained with selenite for both cultivars, especially at the highest doses, i.e., 75 and 100 g Se.ha􀀀1, with approximately a 5.0-fold increase compared with control values. In paddy grains, Zn was the most affected element by the treatments with Se with decreases up to 54%. When comparing the losses between rough and polished grains regardless of the cultivars, Se species and concentrations, it was observed that only Cu, Mg and Zn exhibited losses <50%. The remaining elements generally had losses >70%. The loss of Se is more pronounced in Ceres cultivar than in Ariete but rarely exceeds 50%. The analysis by -EDXRF showed that, in Ariete cultivar, Se is mostly homogeneously distributed in the grain regardless of any treatments, while in Ceres cultivar, the Se distribution seems to favor accumulation in the periphery, perhaps in the branpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMarques, A.C.; Lidon, F.C.; Coelho, A.R.F.; Pessoa, C.C.; Luís, I.C.; Campos, P.S.; Simões, M.; Almeida, A.S.; Pessoa, M.F.; Galhano, C.; et al. Effect of Rice Grain (Oryza sativa L.) Enrichment with Selenium on Foliar Leaf Gas Exchanges and Accumulation of Nutrients. Plants 2021, 10, 288pt_PT
dc.identifier.doihttps://doi.org/10.3390/ plants10020288pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/21351
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectelemental compositionpt_PT
dc.subjectphotosynthesispt_PT
dc.subjectrice cultivarspt_PT
dc.subjectselenium biofortificationpt_PT
dc.titleEffect of rice grain (Oryza sativa L.) enrichment with selenium on foliar leaf gas exchanges and accumulation of nutrientspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titlePlantspt_PT
person.familyNameRamalho
person.givenNameJosé
person.identifier1111962
person.identifier.ciencia-id2C14-07F8-4EFE
person.identifier.orcid0000-0002-7639-7214
person.identifier.ridG-2427-2014
person.identifier.scopus-author-id57196449038
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2cedc58c-62ef-4973-a443-ebc72ae2ac4d
relation.isAuthorOfPublication.latestForDiscovery2cedc58c-62ef-4973-a443-ebc72ae2ac4d

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