Imbibition phases and germination response of Mimosa bimucronata (Fabaceae: Mimosoideae) to water submersion

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorKestring, Debora
dc.creatorKlein, Jeferson
dc.creatorCandido Ribeiro de Menezes, Luciana Cristina
dc.creatorRossi, Marcelo Nogueira
dc.date2014-05-20T13:48:44Z
dc.date2016-10-25T17:01:28Z
dc.date2014-05-20T13:48:44Z
dc.date2016-10-25T17:01:28Z
dc.date2009-08-01
dc.date.accessioned2017-04-05T20:59:40Z
dc.date.available2017-04-05T20:59:40Z
dc.identifierAquatic Botany. Amsterdam: Elsevier B.V., v. 91, n. 2, p. 105-109, 2009.
dc.identifier0304-3770
dc.identifierhttp://hdl.handle.net/11449/17351
dc.identifierhttp://acervodigital.unesp.br/handle/11449/17351
dc.identifier10.1016/j.aquabot.2009.03.004
dc.identifierWOS:000267627000008
dc.identifierhttp://dx.doi.org/10.1016/j.aquabot.2009.03.004
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/863849
dc.descriptionMimosa bimucronota is a pioneering tree that occurs predominantly in moist lowlands, floodplains and on margins of rivers and lakes in Latin America. The effect of submergence on seed germination in M. bimucronata was firstly studied. Patterns of water absorption by M. bimucronata seeds were investigated thereafter to assess the imbibition phases of scarified and unscarified seeds. The germination percentage was significantly higher in scarified than in unscarified seeds, and the velocity of seed germination also increased considerably in scarified seeds. Submergence duration did not significantly affect germination percentages of scarified and unscarified seeds. Therefore, seed viability after submersion suggests that M. bimucronata may display hydrochorous dispersal and also that seeds are able to germinate successfully in areas with frequent seasonal flooding. With respect to imbibition phases, phase II was very short or even absent for scarified and unscarified seeds; therefore, a plateau, where water absorption by seeds is established, was not observed. Finally, we verified that the passage from phase I to III was very tenuous and took a long time in seeds without scarification. (C) 2009 Elsevier B.V. All rights reserved.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherElsevier B.V.
dc.relationAquatic Botany
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectGermination
dc.subjectMimosa bimucronata
dc.subjectFlooding
dc.subjectImbibition phases
dc.subjectDispersal
dc.titleImbibition phases and germination response of Mimosa bimucronata (Fabaceae: Mimosoideae) to water submersion
dc.typeOtro


Este ítem pertenece a la siguiente institución