dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal do Amazonas - UFAM
dc.date.accessioned2018-12-11T16:56:17Z
dc.date.available2018-12-11T16:56:17Z
dc.date.created2018-12-11T16:56:17Z
dc.date.issued2014-01-01
dc.identifierBioscience Journal, v. 30, n. 3 SUPPL. 1, p. 318-329, 2014.
dc.identifier1981-3163
dc.identifier1516-3725
dc.identifierhttp://hdl.handle.net/11449/171623
dc.identifier2-s2.0-84904044851
dc.identifier9669833663325445
dc.identifier0000-0002-1720-9252
dc.description.abstractThe knowledge of the physiology of Eucalyptus spp. germination may contribute significantly to the development of management and choice of suitability of the deployment areas. The aim was to evaluate the effects of water and salt stress on seed germination of Eucalyptus camaldulensis, E. citriodora, E. grandis, E. robusta and E. urophylla. The seeding was done with four replicates of 0.05 g of seeds in paper moistened with solutions at potentials of 0.0, -0.2, -0.4, and -0.8 MPa, induced with polyethylene glycol (PEG 6000) and NaCl. The germination test was in 25 ° C in the presence of light. Were evaluated the first test score seven days after sowing, and weekly germination (normal seedlings) until 28 days. Were also calculated the germination speed index. Water stress causes a greater reduction in the rate of germination and accumulated germination of E. camaldulensis and E. citriodora seeds than salt stress, and the seeds of E. robusta are more adapted to germinate under salt stress moderate, between -0.2 and -0.4 MPa. Regardless of the substance used to induce stress, the threshold for germination was -0.8 MPa. The E. camaldulensis is the most sensitive specie to water stress and E. urophylla most sensitive to salt stress.
dc.languageeng
dc.languagepor
dc.relationBioscience Journal
dc.relation0,303
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectOsmotic potential
dc.subjectOsmotic stress
dc.subjectSalinity
dc.subjectVigor
dc.titleGerminação de sementes de eucalipto sob estresse hídrico e salino
dc.typeArtículos de revistas


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