Correlation matrix and stability analysis for morpho-physiological characteristics in extant cultivars of tomato (Solanum lycopersicum L.)

Abstract

The data was generated from twenty morphological and disease traits for estimating the correlation and path coefficient analysis, stability and diversity analysis. In results of genotypic & phenotypic correlation and path coefficient analysis, the maximum and positive correlation of yield was stand with the fruit average weight of 10 fruits (0.311 & 0.302), number of fruits/plant (0.275 & 0.291), fruit weight (0.253 & 0.241cm), fruit size of scar around peduncle end (0.213 & 0.202) and fruit number of locules (0.264 & 0.252), while, the yield was negatively correlated with some horticultural traits along with ToLCV (-0.582 & -0.557) and early blight (-0.375 & -0.360). Some characters showed low heritability (<1.00) with high genetic advances like Stem length of internode between 1st and 4th inflorescence (0.967 & 18.866), time of 50% flowering (0.997 & 13.799), fruit average weight of 10 fruits (0.999 & 48.535), number of fruits/plant (0.987 & 19.721), time of maturity from seed sowing (0.940 & 15.822), ToLCV (0.985 & 31.765) and early blight (0.992 & 37.786) which were exhibited additive gene action. Out of 24, a total 11, 13, 14 and 12 cultivars showed less than or equal to one (b<1 or b=1) regression coefficient for ToLCV (0.39-0.99), early blight (0.11-0.89), SLI (0.50-1.00) and number of fruits/plant (0.58-1.00), respectively.