Genetic Variability and Correlation Studies in Sugarcane

The genetic variability, heritability, genetic advance and correlations were studied for ten characters, viz:, millable canes/dump, mternodes/cane, stalk weight, stalk girth kg-brix, sucrose content in juice, purity coefficient, invert sugar, ccs/cane and fibre content of 35 treatments (11 parents and 24 F₁). The phenotypic and genotypic coefficient of variance indicated that selection may be done for kg-brix, millable canes/clump, invert sugar, ccs/cane, stalk weight and mternodes/cane. These characters are of great value to the breeder for selection. The millable canes/dump, internodes/cane, stalk weight, kg-brix and ccs/cane(kg) are positively and significantly associated with each other. Positive significant association of stalk girth was found with stalk weight, kg-brix, invert sugar, ccs/cane. Therefore, millable canes/dump, internodes/cane, stalk weight, kg-brix, ccs/cane and stalk girth should he given due weightage during selection.