Allelopathic effects of aqueous extract of Brassica napus on germination of seeds of Phaseolus vulgaris

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dc.contributor.authorRigon, João P. G. [UNESP]
dc.contributor.authorCapuani, Silvia [UNESP]
dc.contributor.authorCherubin, Maurício R.
dc.contributor.authorWastowski, Arci D.
dc.contributor.authorDa Rosa, Genesio M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCentro de Educação Superior Norte Do Estado Do Rio Grande Do sul
dc.date.accessioned2014-05-27T11:26:52Z
dc.date.available2014-05-27T11:26:52Z
dc.date.issued2012-07-01
dc.description.abstractSecondary compounds produced by plants are considered an alternative method of weed suppression but can cause negative effects on crops in succession, especially in a no-tillage system, due to the degradation of crop residues with allelopathic potential. The objective of this work was to analyze the influence of foliar aqueous extracts of Brassica napus on the germination and initial development of seedlings of Phaseolus vulgaris. The extract was prepared as a stock 10 % weight/volume solution, and diluted into treatments of relative concentrations of 100 % (i.e. 10 % w/v stock), 75 %, 50 %, 25 % and 0 % (untreated control consisting of distilled water), in a completely randomized design. The seeds of Phaseolus vulgaris were moistened with the differing concentrated extracts and kept in a germination chamber at 25 °C, with a photoperiod of 12 h for nine days. The variables evaluated were: percentage germinating, first count of germination and germination velocity index, as well the root and hypocotyl length, and fresh and dry mass of the seedlings. The aqueous leaf extracts of Brassica napus did not influence the germination of Phaseolus vulgaris seeds, but did induce the growth of abnormal seedlings by inhibition of secondary roots and reduced prominence of the primary root.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquista FIlho, Rua José Barbosa de Barros, Lageado, CEP 18610-307, Botucatu-SP
dc.description.affiliationUniversidade Federal de Santa Maria Centro de Educação Superior Norte Do Estado Do Rio Grande Do sul Campus de Frederico Westphalen, BR 386, Km 40, Linha Sete de Setembro, CEP 98400-000, Frederico Westphalen-RS
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquista FIlho, Rua José Barbosa de Barros, Lageado, CEP 18610-307, Botucatu-SP
dc.format.extent451-455
dc.identifierhttp://dx.doi.org/10.5039/agraria.v7i3a1732
dc.identifier.citationRevista Brasileirade Ciencias Agrarias, v. 7, n. 3, p. 451-455, 2012.
dc.identifier.doi10.5039/agraria.v7i3a1732
dc.identifier.file2-s2.0-84871599133.pdf
dc.identifier.issn1981-1160
dc.identifier.issn1981-0997
dc.identifier.scopus2-s2.0-84871599133
dc.identifier.urihttp://hdl.handle.net/11449/73414
dc.language.isoeng
dc.relation.ispartofRevista Brasileirade Ciencias Agrarias
dc.relation.ispartofsjr0,288
dc.relation.ispartofsjr0,288
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAllelochemicals
dc.subjectCrop succession
dc.subjectDevelopment of seedlings
dc.subjectBrassica napus
dc.subjectPhaseolus vulgaris
dc.titleAllelopathic effects of aqueous extract of Brassica napus on germination of seeds of Phaseolus vulgarisen
dc.typeArtigo
dcterms.licensehttp://www.agraria.pro.br/sistema/index.php?journal=agraria&page=about&op=editorialPolicies#openAccessPolicy

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