ACTION OF IMAZETHAPYR AND LACTOFEN ON THE NODULATION OF CONVENTIONAL AND TRANSGENIC SOYBEAN UNDER DROUGHT STRESS CONDITIONS

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dc.contributor.authorGoncalves, C. G.
dc.contributor.authorSilva Junior, A. C. [UNESP]
dc.contributor.authorScarano, M. [UNESP]
dc.contributor.authorPereira, M. R. R.
dc.contributor.authorMartins, D. [UNESP]
dc.contributor.institutionAuburn Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFac Tecnol Capao Bonito
dc.date.accessioned2018-11-26T16:05:02Z
dc.date.available2018-11-26T16:05:02Z
dc.date.issued2018-01-01
dc.description.abstractThis research aimed at studying the action of the herbicides imazethapyr and lactofen on the root system and rhizobium/plant interaction, when they are sprayed at two phenological development stages of soybean cultivars under different soil water management. The soybean cultivars MG/BR 46 Conquista (conventional) and BRS Valiosa (RR) were submitted to three minimum soil water potential (Psi s): -0.03; -0.07 and -0.5 MPa at the V2 and V4 phenological stages. The herbicides imazethapyr at the rate (100 g a.i. ha(-1)) and lactofen at the rate (180 g a.i. ha(-1)) were sprayed 10 days after the start of water restrictions. Twenty-one days after the application of the herbicides, root dry matter and root nodulation were evaluated. The BRS Valiosa (RR) soybean cultivar presented better nodule formation and a more efficient and more adapted root system to support moderate drought stress conditions (-0.07 MPa). The MG/BR 46 Conquista (conventional) soybean cultivar presented lower the root system growth when submitted to the spraying of imazethapyr and lactofen. The activity of N-2-fixating bacteria was affected by the spraying of the herbicides imazethapyr and lactofen.en
dc.description.affiliationAuburn Univ, Auburn, AL 36849 USA
dc.description.affiliationUniv Estadual Paulista, UNESP, Jaboticabal, SP, Brazil
dc.description.affiliationFac Tecnol Capao Bonito, Capao Bonito, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Jaboticabal, SP, Brazil
dc.format.extent11
dc.identifierhttp://dx.doi.org/10.1590/S0100-83582018360100061
dc.identifier.citationPlanta Daninha. Vicosa: Univ Federal Vicosa, v. 36, 11 p., 2018.
dc.identifier.doi10.1590/S0100-83582018360100061
dc.identifier.fileS0100-83582018000100278.pdf
dc.identifier.issn0100-8358
dc.identifier.scieloS0100-83582018000100278
dc.identifier.urihttp://hdl.handle.net/11449/160566
dc.identifier.wosWOS:000443812700001
dc.language.isoeng
dc.publisherUniv Federal Vicosa
dc.relation.ispartofPlanta Daninha
dc.relation.ispartofsjr0,365
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectALS
dc.subjectGlycine max
dc.subjectphytotoxification
dc.subjectPROTOX
dc.subjectsymbiotic fixation of N-2
dc.titleACTION OF IMAZETHAPYR AND LACTOFEN ON THE NODULATION OF CONVENTIONAL AND TRANSGENIC SOYBEAN UNDER DROUGHT STRESS CONDITIONSen
dc.typeArtigo
dcterms.rightsHolderUniv Federal Vicosa

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