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Sugarcane genotype x harvest cycles interaction in Zona da Mata Norte of Pernambuco

This work aimed to study the development of sugarcane RB clones, series 94 from the Universidade Federal Rural de Pernambuco (UFRPE) in the North Forest Zone of Pernambuco, regarding to agroindustrial yield, evaluate genotype x environment interactions and the magnitude of some genetic parameters. The experimental work was done during the agricultural years 1999/2000, 2000/2001, 2001/2002 and 2002/2003, in Olho d'Água sugar mill, located at the North Forest Sugar Cane Zone of Pernambuco, in Camutanga (07º24'S and 35º16' W). The experimental design was randomized blocks with four replicates and sixteen genotypes, being four of them standard clones. As to cane and sugar yield per herctare, the standard clones RB 813804, RB 72454, SP 79-1011 and SP 70-1143 confirmed their potential. The effect of cane cut was highly significant, indicating specific behaviour among the genotypes. Yield per hectare was the component most influenced by cane cutting cycles.

Saccharum spp.; varieties; genetic parameters; genotype x environment interaction


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