Herbicide selectivity for conventional maize hybrid

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dc.contributorVICTÓRIA C. S. ROSA, UNIVERSIDADE DE RIO VERDE; GUILHERME B. P. BRAZ, UNIVERSIDADE DE RIO VERDE; MATHEUS DE F. SOUZA, UNIVERSIDADE DE RIO VERDE; SERGIO DE OLIVEIRA PROCOPIO, CNPMA; CAMILA J. B. FERREIRA, UNIVERSIDADE DE RIO VERDE; ALESSANDRO G. DA SILVA, UNIVERSIDADE DE RIO VERDE; EDUARDO L. DO CARMO, UNIVERSIDADE DE RIO VERDE.
dc.creatorROSA, V. C. S.
dc.creatorBRAZ, G. B. P.
dc.creatorSOUZA, M. de F.
dc.creatorPROCOPIO, S. de O.
dc.creatorFERREIRA, C. J. B.
dc.creatorSILVA, A. G. da
dc.creatorCARMO, E. L. do
dc.date2025-11-19T12:48:53Z
dc.date2025-11-19T12:48:53Z
dc.date2025-11-19
dc.date2025
dc.date.accessioned2026-07-07T05:10:47Z
dc.descriptionAbstract: The cultivation of conventional maize in refuge areas is important for preserving Bt technology and serving specific markets with greater added value to the grains. Therefore, research aimed at chemical weed control must also continue to be directed to conventional maize hybrids. The objective was to evaluate the selectivity of herbicides applied in preand post-emergence of a conventional maize hybrid cultivated in the Cerrado biome of Brazil. Two field experiments were set up, one in summer and the other in second season. The treatments were composed of eleven herbicide treatments, whose doses are presented in g ha-1 of active ingredient: S-metolachlor (1,440), S-metolachlor (1,680), mesotrione + atrazine (115.2 + 2,000), mesotrione + atrazine (192 + 2,000), tembotrione + atrazine (75.6 + 2,000), tembotrione + atrazine (100.8 + 2,000), nicosulfuron + atrazine (16 + 2,000), nicosulfuron + atrazine (24 + 2,000), [mesotrione + atrazine] ([120 + 1,200]), sequential application of [mesotrione + atrazine] ([60 + 600]), atrazine (2,000), plus a weeded control. Regardless of the experiment, all herbicides applied preand post-emergence of maize led to low percentages of phytointoxication. In both experiments, none of the treatments caused reductions in crop stand, confirming the absence of plant mortality due to the application of herbicides. Plant tipping/lodging was seen in summer maize, with no treatment effect. Maize 100grain mass and yield did not change as a result of the application of herbicides in preand post-emergence of the crop. All herbicide treatments evaluated showed selectivity for the conventional maize hybrid.
dc.identifierRevista Caatinga, v. 38, e12494, 2025.
dc.identifier1983-2125
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1181684
dc.identifierhttps://doi.org/10.1590/1983-21252025v3812494rc
dc.identifier.urihttp://hdl.handle.net/123456789/483089
dc.languageeng
dc.rightsopenAccess
dc.subjectNon-GMO
dc.subjectErva Daninha
dc.subjectMilho Hibrido
dc.subjectHerbicida
dc.subjectControle Químico
dc.subjectHybrids
dc.subjectCorn
dc.subjectPesticide selectivity
dc.subjectHerbicides
dc.subjectPhytotoxicity
dc.subjectGrain yield
dc.titleHerbicide selectivity for conventional maize hybrid
dc.typeArtigo de periódico

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