Phenotypic and genotypic correlation for leaf and quality characters in flue cured virginia tobacco

摘要

To study phenotypic and genotypic correlation among different yield and quality traits, an experiment comprising four tobacco parental cultivars and their 12 F2 populations was conducted in a randomized complete block (RCB) design with three replications. The characters studied include days to flowering, plant height, leaf area, number of leaves plant-1, weight of green leaves m-2, number of green leaves kg-1, number of cured leaves kg-1, grade index, yield ha-1, nicotine content and reducing sugar. Analysis of variance showed highly significant differences among all the genotypes for all the characters. Leaf yield showed significantly positive phenotypic and genotypic correlations with leaf area, number of leaves plant-1, weight of green leaves m-2 and grade index. The above given F2 populations have positive significant correlation for various yield and quality traits which could be used for further assessment in tobacco breeding programs.