Glyphosate applied at a hormetic dose improves ripening without impairing sugarcane productivity and ratoon sprouting

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dc.contributor.authorde Almeida Silva, Marcelo [UNESP]
dc.contributor.authorEspinoza Véliz, José Gerardo
dc.contributor.authorPereira Sartori, Maria Márcia [UNESP]
dc.contributor.authorLuiz Santos, Hariane [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionGuatemalan Sugarcane Research and Training Center (CENGICAÑA)
dc.date.accessioned2022-04-28T19:45:12Z
dc.date.available2022-04-28T19:45:12Z
dc.date.issued2022-02-01
dc.description.abstractThe management of sugarcane ripening is essential to ensuring the supply of high-quality raw material for the sugar-alcohol industry; chemical ripeners are frequently used to accelerate sucrose accumulation in the stalks during harvesting. The potential ripening effect of a low dose of glyphosate was evaluated in sugarcane, along with its impact on productivity and sprouting in the next crop cycle. A field experiment was conducted in 2015 and 2016 using a randomized block design with eight replicates in a split-plot scheme, with the following treatments: (1) control with only water application, (2) glyphosate at a low dose of 1.8 g a.e. ha−1 (corresponding to 0.005 L ha−1 of the commercial product (cp)), and (3) glyphosate at the commercially recommended dose for a ripener at 180 g a.e. ha−1 (corresponding to 0.50 L ha−1 of the cp) applied at 60, 45, 30, and 15 days before harvest (DBH). The harvest was performed on May 25, 2016 (0 DBH), and a total of five periods were evaluated. This study showed that the application of a hormetic dose of glyphosate to stimulate sugarcane ripening is promising, despite the limited duration of the effect. The application of the hormetic dose (1.8 g a.e. ha−1) at 30 DBH improved the technological quality of sugarcane in terms of Brix% juice, pol% cane, purity% juice, moisture% cane, reducing sugars, total reducing sugars, and total recoverable sugar. Additionally, it increased pol productivity, and did not affect ratoon sprouting in the subsequent cycle. Thus, this study provides a strategy for ripening management with a low environmental impact for sugarcane producers through a low (hormetic) dose of glyphosate.en
dc.description.affiliationLaboratory of Ecophysiology Applied to Agriculture (LECA) School of Agricultural Sciences São Paulo State University (UNESP)
dc.description.affiliationGuatemalan Sugarcane Research and Training Center (CENGICAÑA)
dc.description.affiliationUnespLaboratory of Ecophysiology Applied to Agriculture (LECA) School of Agricultural Sciences São Paulo State University (UNESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2014/22585-3
dc.description.sponsorshipIdCNPq: 305952/2018-8
dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2021.150503
dc.identifier.citationScience of the Total Environment, v. 806.
dc.identifier.doi10.1016/j.scitotenv.2021.150503
dc.identifier.issn1879-1026
dc.identifier.issn0048-9697
dc.identifier.scopus2-s2.0-85115916371
dc.identifier.urihttp://hdl.handle.net/11449/222513
dc.language.isoeng
dc.relation.ispartofScience of the Total Environment
dc.sourceScopus
dc.subjectHerbicide
dc.subjectHormesis
dc.subjectPol% cane
dc.subjectSaccharum spp.
dc.subjectTillering
dc.subjectYield
dc.titleGlyphosate applied at a hormetic dose improves ripening without impairing sugarcane productivity and ratoon sproutingen
dc.typeArtigo

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