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Effects of salt and drought stress on seed germination and seedling growth in Portulaca

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Effects of salt and drought stress on seed germination and seedling growth in Portulaca

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dc.contributor.author Borsai, Orsolya es_ES
dc.contributor.author Al Hassan, Mohamad es_ES
dc.contributor.author Boscaiu, Monica es_ES
dc.contributor.author Sestras, Radu E. es_ES
dc.contributor.author Vicente, Oscar es_ES
dc.date.accessioned 2019-07-11T20:01:01Z
dc.date.available 2019-07-11T20:01:01Z
dc.date.issued 2018 es_ES
dc.identifier.issn 1224-5984 es_ES
dc.identifier.uri http://hdl.handle.net/10251/123496
dc.description.abstract [EN] The effects of salt and water deficit on seed germination and early seedling growth were studied in six Portulaca accessions (P. oleracea L. ssp. oleracea, P. grandiflora Hook., P. grandiflora cvs. `Sundial Mango¿, `Double Pink¿ and `Double White¿, and P. halimoides L.). The aims of the study were to evaluate their responses to abiotic stress and to establish the relative degree of tolerance of the selected taxa. Seeds were germinated in the presence of increasing concentrations of NaCl or polyethylene glycol 6000 (to mimic drought conditions), generating the same osmotic potentials: 0, -0.25, -0.5 and -0.1 MPa. Germination percentage, mean germination time, seedling fresh weight and vigour index, and radicle, hypocotyl and cotyledon lengths were determined. Seed germination and seedling development decreased in all taxa in the presence of PEG and NaCl, in a concentration-dependent manner, although the effect of salt was stronger than that of PEG, at the same osmotic potentials. Germination and seedling parameters varied for the different accessions but, in practical terms, considering only the final germination percentages under stress, P. halimoides L. appears to be the taxon most tolerant to water deficit, whereas P. grandiflora Hook. would be the most tolerant to salt stress.. es_ES
dc.language Inglés es_ES
dc.relation.ispartof Romanian Biotechnological Letters es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Abiotic stress es_ES
dc.subject Osmotic potential es_ES
dc.subject Reproductive success es_ES
dc.subject Seedling development es_ES
dc.subject Water deficit es_ES
dc.subject.classification BIOQUIMICA Y BIOLOGIA MOLECULAR es_ES
dc.subject.classification BOTANICA es_ES
dc.title Effects of salt and drought stress on seed germination and seedling growth in Portulaca es_ES
dc.type Artículo es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ecosistemas Agroforestales - Departament d'Ecosistemes Agroforestals es_ES
dc.description.bibliographicCitation Borsai, O.; Al Hassan, M.; Boscaiu, M.; Sestras, RE.; Vicente, O. (2018). Effects of salt and drought stress on seed germination and seedling growth in Portulaca. Romanian Biotechnological Letters. 23(1):13340-13349. http://hdl.handle.net/10251/123496 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://www.rombio.org/ es_ES
dc.description.upvformatpinicio 13340 es_ES
dc.description.upvformatpfin 13349 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 23 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\354276 es_ES


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