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dc.contributor.authorCaputo, Marina Maitto-
dc.contributor.authorSilva, Marcelo Almeida de-
dc.contributor.authorBeauclair, Edgar Gomes Ferreira de-
dc.contributor.authorGava, Glauber José Castro de-
dc.identifier.citationInterciencia, v. 32, n. 12, p. 834-840, 2007.-
dc.description.abstractPlant regulators have been used successfully for early ripening and flowering control in sugarcane (Saccharum spp. Hybrid). However, little information is available about the interactions between new genotypes and two plant regulators with regard to those variables. This study determined the effect of the regulators on the sucrose content, stalk production and flowering of seven sugarcane genotypes. The experiment was installed in March 2004 near Ja-, SP, Brazil A randomized complete block design was used with four blocks with a split plot treatment arrangement where the main plots were the genotypes IAC87-3396, IAC87-3410, IAC89-3124, IAC91-2195, 1AC91-5155, P088-62 and SP80-1842 and the subplots were sulfomethuron-methyl (15g i.a.·ha -1), etefon (480g i.a.·ha-1) and unsprayed control. Pol in cane was evaluated at 0, 21, 42, 63, 84, 105 and 126 days after the plant regulators application (DAA). Flowering, pith, stalk production and sucrose content were evaluated at 126 DAA. In most of the genotypes the use of plant regulators anticipated maturation in 21 days when compared with the unsprayed control. Etefon was more efficient for harvesting sugarcane between 42-84 DAA, whereas sulfomethuron-methyl was between 105 and 126 DDA. Both products controlled flowering. For most genotypes, the ripeners did not affect the productivity of stalks, except for sulfomethuron-methyl that reduced it in SP80-1842, and for ethephon that increased it in IAC91-2195. Sugar productivity of IAC89-3124 increased with both regulators, while it was higher in IAC91-2195 with ethephon application and lower in SP80-1842 with sulfomethuron-methyl use.en
dc.titleAcúmulo de sacarose, produtividade e florescimento de cana-de-açúcar sob reguladores vegetaispt
dc.title.alternativeSugarcane sucrose accumulation, productivity and flowering using plant regulatorsen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionAgência Paulista de Tecnologia dos Agronegócios (APTA)-
dc.contributor.institutionUniversidade Federal Rural do Rio de Janeiro (UFRRJ)-
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)-
dc.contributor.institutionCentro de Energia Nuclear da Agricultura-
dc.description.affiliationUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationFitotecnia Universidade de São Paulo (USP)-
dc.description.affiliationAgência Paulista de Tecnologia dos Agronegócios (APTA)-
dc.description.affiliationAPTA Regional Centro-Oeste, Caixa Postal 66, 17201-970 Ja- (SP)-
dc.description.affiliationUniversidade Federal Rural do Rio de Janeiro-
dc.description.affiliationUniversidade Federal de Viçosa-
dc.description.affiliationCentro de Energia Nuclear da Agricultura-
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP)-
dc.rights.accessRightsAcesso aberto-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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