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Neste trabalho, objetivou-se avaliar o desempenho agronômico, industrial e a magnitude dos parâmetros genético de progênies de cana-de-açúcar na zona canavieira do Litoral Norte de Pernambuco. Os experimentos foram desenvolvidos durante o ano agrícola 2006/2007 no Litoral Norte de Pernambuco, no município de Igarassu, dentro de área da Usina São José. O delineamento experimental foi de blocos casualizados, com cinco repetições, utilizando-se como tratamentos 24 genótipos (20 provenientes dos cruzamentos e quatro variedades padrões). A parcela constou de três sulcos de 6 m, espaçados de 1,30 m, com 10 plântulas por sulco, (espaçados de 0,6 m dentro do sulco, totalizando 30 plântulas por parcela), perfazendo uma área total de 23,4 m². O corte foi realizado no décimo mês após o transplantio, onde foram avaliadas as seguintes variáveis: tonelada de cana por hectare (TCH), tonelada de pol por hectare (TPH), Fibra (FB), pol % corrigida (PCC), pureza (PZA), Brix (BX) e açúcar total recuperável (ATR). As progênies dos cruzamentos: RB855035 X RB 72454; RB 865230 X RB855035; Tuc71-7 X RB72454 e RB72454 X Tuc71-7, destacaram-se para as variáveis TPH, FB, PZA e BX. Há variabilidade genética entre as progênies dos cruzamentos para todas as variáveis avaliadas. As estimativas de h²m foram expressivas para as variáveis TPH, TCH, PCC, FB, BX e ATR, indicando a possibilidade de êxito na seleção dessas variáveis dentro da região canavieira do Litoral Norte de Pernambuco. The objective of our research was to evaluate the agronomical, industrial performance and the magnitude of the genetic parameters of initial phase sugarcane progenies in the north coast of Pernambuco. Experimental works were developed during the agricultural year of 2006/2007 in the sugarcane plantation zone in the north coast of Pernambuco, in the district of Igarassu, in the area of the São José industrial plant. The experimental delineation was randomized blocks with five repetitions, using 24 genotypes as treatment (20 from the crossings and 4 standard varieties). The parcel was planted in three furrows of 6 m, spaced by 1.30 m with 10 seedlings per furrow (spaced by 0.6 m within the furrow), totalizing a total area of 23.4 m². Harvest was done in the 10th month after the transplantation, where were evaluated the following variables: pol tons per hectare (PTH), sugarcane tons per hectare (STH), fiber (FB), corrected pol % (CPP), purity (PTY), brix (BX) and total retrievable sugar (TRS). The progenies of the crossings: RB855035 X RB72454; RB865230 X RB855035; Tuc71-7 X RB 72454 and RB 72454X Tuc71-7, overtopped for most of the studied variables. There is genetical variability among the progenies of the crossings for all the evaluated variables. The h²m estimations were expressive for the variables STH, PTH, CPP, FB, BX and TRS, indicating the possibility of success in the selection of these variables within the sugarcane plantation region of North Coast of Pernambuco

Avaliação agroindustrial e parâmetros genético de progênies de cana-de-açúcar em fase inicial na zona canavieira do Litoral Norte de Pernambuco