STUDIES ON GENETIC VARIABILITY AND COMBINING ABILITY IN SUGARCANE

Abstract

High genotypic coefficient of variation, heritability and genetic advance were obtained for number of canes, stalk height and brix per cent (11th and 13th month), while low heritability and high genetic advance were obtained for stalk height and the moderate for the rest of the characters. The combining ability analysis indicated that gca effects were positively significant for number of canes, stalk height, girth, weight and brix. Both the additive and non-additive type of gene actions were found important for yield attributes and only additive type of gene action was important for brix per cent.