Desempenho agroindustrial de cultivares de cana-de-açúcar na zona da mata litoral sul de Pernambuco

• Autor(a) principal: Melo, Luiz José Oliveira Tavares de
• Data de Publicação: 2009
• Outros Autores: Oliveira, Francisco José de, Bastos, Gerson Quirino, Anunciação Filho, Clodoaldo José da, Reis, Odemar Vicente dos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UFLA
• Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000300004; http://repositorio.ufla.br/jspui/handle/1/6951
• topic: Saccharum spp.; Melhoramento vegetal; Genótipos; Parâmetros genéticos; Plant breeding; Genotypes; Genetic parameters

The aim of this work was to evaluate the genetic variability of some characters of the plant and the agroindustrial performance of sugar cane cultivars. The experimental design was the complete randomized blocks with four replications and 16 cultivars, being four of them used as check varieties. The plots were formed by five furrows of 8.0 m length, spaced 1.0 m, characterizing a useful area of 40 m2. The variables evaluated were the tons of cane per hectare (TCH), tons of pol per hectare (TPH), pol in the cane (PC), % cane fiber (FIB), brix in the cane (BC) and purity in the cane (PUR). The TCH is the component most influenced by the harvest cycles of the sugar cane farming and the least expressive for the other studied characters. The variables TCH and TPH reflected most of the phenotypic variation observed due to genetic causes, indicating success in the selection for the improvement of these characters. The genotypes SP78-4764, SP86-0621, and SP86-127 demonstrated productive potential from the agroindustrial point of view. The effect of the cane cut cycle was highly significant, indicating specific behaviors among the cultivars during the cane harvest.