Promising RBs Sugarcane Clones Evaluation Regarding Sugarcane Borer (Diatraea Saccharalis) in Northwest of Paraná State

Abstract

Sugarcane (Saccharum ssp) is a crop generally attacked by the agricultural pest Diatraea saccharalis, known as sugarcane borer, that besides reducing agricultural production, still cause problems of fermentation in the alcohol and sugar’s mill. The fast expansion of the agricultural yield put on decline some cultivars, reducing the varietal options regarding the resistance to the sugarcane borer. The present work had as objective to select the RBs clones of the series 97 coming from hybridization carried out in 1997 at Serra do Ouro, in Murici – Alagoas, by the Breeding sugarcane/ridesa program, with better resistance to the Diatraea saccharalis. This research was done comparing RB’s sugarcane clones series 97, relating to the sugarcane infestation index and relating to the industrial yield of these clones, through a experiment carried out in Alto Alegre’s mill, on Colorado City, in the Northwest of Paraná State. The clones RB 975311 and RB 9755286 showed a good resistance to the sugarcane borer infestation, an average of 1,7% e 3,5% respectively, as well showed good pure characteristics exceeding the RB 72454 and RB 835486 standards.