Efects of extracts of green manure in Lactuca sativa and Digitaria horizontalis

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dc.contributor.authorErasmo, Eduardo Andrea Lemus
dc.contributor.authorde Azevedo, Waldeon Reis
dc.contributor.authorda Costa, Neumárcio Vilanova
dc.contributor.authorAlves, Pedro Luis da Costa Aguiar [UNESP]
dc.contributor.institutionUniversidade Federal do Tocantins (UFT)
dc.contributor.institutionCentro de Ciências Agrárias
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:48:48Z
dc.date.available2022-04-29T08:48:48Z
dc.date.issued2011-01-01
dc.description.abstractThis study aimed to evaluate the potential allelopathic efects of four species of green manure (Canavalia ensiformis, Crota-laria spectabilis, Mucuna aterrima and Sorghum bicolor cv. AG 2005) on the seed germination and initial growth of seedlings of Lactuca sativa and Digitaria horizontalis. In the frst experiment, the efects of dilute solutions of 1%, 2%, 3%, 4%, 5% and 10% of shoot and root aqueous extracts of green manure were evaluated on germination, speed of germination index (SGI) and root length of L. sativa. In the second experiment, the incorporation into the soil of 0, 10, 20, 30, 40 and 50 g dm-3 of biomass of green manure was evaluated on the accumulation of dry weight (shoots and roots) and root development of seedlings of L. sativa and D. horizontalis. In conclusion, the aqueous extracts of the species C. ensiformis, C. spectabilis, M. aterrima and S. bi-color cv. AG 2005 promoted negative allelopathic efects on seed germination and SGI of L. sativa. The incorporation into the soil of the biomass also negatively afected the initial development of seedlings of L. sativa. However, there were benefcial allelopathic efects on the early development of D. horizontalis with incorporation into the soil biomass of C. spectabilis.en
dc.description.affiliationUniversidade Federal do Tocantins (UFT) Departamento de Engenharia Florestal, Caixa Postal 66, 77404-970 Gurupi (TO)
dc.description.affiliationUNIOESTE Centro de Ciências Agrárias, Rua Pernambuco, 1.777, 85960-000 Marechal Cândido Rondon (PR)
dc.description.affiliationUNESP Faculdade de Ciências Agrárias e Veterinárias (FCAV), Rod. Prof. Paulo Donato Castellane s/n, 14884-900 Jaboticabal (SP)
dc.description.affiliationUnespUNESP Faculdade de Ciências Agrárias e Veterinárias (FCAV), Rod. Prof. Paulo Donato Castellane s/n, 14884-900 Jaboticabal (SP)
dc.format.extent529-537
dc.identifierhttp://dx.doi.org/10.1590/s0006-87052011000300007
dc.identifier.citationBragantia, v. 70, n. 3, p. 529-537, 2011.
dc.identifier.doi10.1590/s0006-87052011000300007
dc.identifier.issn1678-4499
dc.identifier.issn0006-8705
dc.identifier.scopus2-s2.0-82955171347
dc.identifier.urihttp://hdl.handle.net/11449/232045
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofBragantia
dc.sourceScopus
dc.subjectAllelochemicals
dc.subjectFabaceae
dc.subjectGermination
dc.subjectWeed
dc.titleEfects of extracts of green manure in Lactuca sativa and Digitaria horizontalisen
dc.titleEfeito de extratos de adubos verdes sobre Lactuca sativa e Digitaria horizontalispt
dc.typeArtigo

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Artigos - Biologia - FCAV