INDICADORES FITOTÉCNICOS, DE PRODUÇÃO E AGROINDUSTRIAIS EM CANA DE AÇÚCAR CULTIVADA SOB DOIS REGIMES HÍDRICOS

CRISTIANO MARCO DE OLIVEIRA DIAS; CARLOS EDUARDO CORSATO; VALDINEI MOREIRA DOS SANTOS; ANTONIO FÁBIO SILVA SANTOS

INDICADORES FITOTÉCNICOS, DE PRODUÇÃO E AGROINDUSTRIAIS EM CANA DE AÇÚCAR CULTIVADA SOB DOIS REGIMES HÍDRICOS

2012

CRISTIANO MARCO DE OLIVEIRA DIAS | CARLOS EDUARDO CORSATO | VALDINEI MOREIRA DOS SANTOS | ANTONIO FÁBIO SILVA SANTOS

The goal of this paper was to verify the influence of two water regimes on the phytotechnical,production, and agroindustrial indicators in three varieties of sugarcane. The experiment was conducted at theExperimental Farm of the State University of Montes Claros - Unimontes, with design of randomized blocks ina split plot scheme. The treatments were two water regimes (irrigated and non-irrigated) and three sugarcanevarieties (RB 72-454, SP 79-1011 e SP 80-1842) randomly distributed in four blocks. The phytotechnical andproduction variables analyzed were plant height, stalk diameter and shoot biomass yield, and the agroindustrialvariables were soluble solid and fiber content. Data were subjected to analysis of variance with application of Ftest and the means were compared among themselves by Tukey test. At conditions which the experiment was realized, the plant height, the shoot biomass yield, the soluble solids and fiber content were efficient indicators for the selection of sugarcane varieties to tolerance to water deficit. Among the indicators studied, only the stalk diameter did not respond to soil water availability. Among the varieties, only SP 79-1011 showed indifferent to water availability on the shoot biomass yield.

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