Efeito alelopático do extrato aquoso de folhas de girassol sobre a germinação de soja e picão-preto

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dc.contributor.authorCorsato, Jaqueline Malagutti [UNESP]
dc.contributor.authorTeixeira Fortes, Andrea Maria
dc.contributor.authorSantorum, Marcia
dc.contributor.authorLeszczynski, Raquel
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Estadual Oesto Parana
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.date.accessioned2014-05-20T15:34:21Z
dc.date.available2014-05-20T15:34:21Z
dc.date.issued2010-01-01
dc.description.abstractThe aim of this work was to evaluate the allelopathic effect of water extract from sunflower fresh leaves on the germination and initial development of conventional and transgenic soybean cultivars, and of the invasive hairy beggartick (Bidens pilosa L.). Experiments were carried out at Laboratory of Plant Physiology, Universidade Estadual do Oeste do Parana, in 2007. Fresh leaves from sunflower were ground in a blender at the proportion 200g/1L distilled water, resulting in crude extract (100%), in which pH was measured. Dilutions of 80%, 60%, 40% and 20% were done from the crude extract, and only distilled water was used as control. Statistical analysis (Tukey 5% probability) indicated that only the highest extract concentrations (60%, 80% and 100%) influenced the analyzed parameters for conventional and transgenic soybean. Beggartick seeds, however, had germination percentage completely inhibited when 40% water extract was applied, which indicates that sunflower straw could be used as a natural herbicide. Nevertheless, field studies must be carried out to prove such effect.en
dc.description.affiliationUniv Estadual Paulista, Curso Ciencias Biol, Botucatu, SP, Brazil
dc.description.affiliationUniv Estadual Oesto Parana, Curso Ciencias Biol, Cascavel, Pr, Brazil
dc.description.affiliationUniv Estadual Oesto Parana, Curso Engn Agr, Cascavel, Pr, Brazil
dc.description.affiliationUniversidade Estadual de Maringá (UEM), Curso Genet & Melhoramento, Maringa, Parana, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Curso Ciencias Biol, Botucatu, SP, Brazil
dc.format.extent353-360
dc.identifierhttp://www.uel.br/revistas/uel/index.php/semagrarias/article/view/5306
dc.identifier.citationSemina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 31, n. 2, p. 353-360, 2010.
dc.identifier.fileWOS000281303300008.pdf
dc.identifier.issn1676-546X
dc.identifier.urihttp://hdl.handle.net/11449/42514
dc.identifier.wosWOS:000281303300008
dc.language.isopor
dc.publisherUniversidade Estadual de Londrina (UEL)
dc.relation.ispartofSemina: Ciências Agrárias
dc.relation.ispartofjcr0.349
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectHelianthus annus L.en
dc.subjectallelopathyen
dc.subjectGlycine max (L.) Merrillen
dc.subjectBidens pilosa L.en
dc.titleEfeito alelopático do extrato aquoso de folhas de girassol sobre a germinação de soja e picão-pretopt
dc.title.alternativeAllelopathic effect of sunflower water extract on the germination of soybean and hairy beggarticken
dc.typeArtigo
dcterms.licensehttp://www.uel.br/revistas/uel/index.php/semagrarias/about/editorialPolicies#openAccessPolicy
dcterms.rightsHolderUniversidade Estadual de Londrina (UEL)

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