Study on correlation coefficients in okra [Abelmoschus esculentus (L.) Moench.]

The present investigation in okra [Abelmoschus esculentus (L.) Moench] was carried out in R.B.D. with three replications. Correlation coefficients between parental order of dominance and parental measurement were found to be negative for height of plant, number of branches per plant and width of fruits per plant in both F-1 and F-2 generations indicating that dominant genes governed the expression of these characters. The positive and significant values observed for days to flowering, length of fruit, number of fruits per plant and fruit yield per plant in F-1 and F-2 generations and number of nodes per plant in F-2 population suggested that these characters were governed by recessive genes. Correlation coefficients were estimated among parents, F-1 hybrids and F-2 population separately at genotypic and phenotypic correlation coefficients. The correlation coefficients were consistently significant and positive in all the three population between fruit yield per plant and number of fruits per plant at both genotypic and phenotypic levels. The consistency was also observed in F-1 and F-2 generations between fruit yield per plant and plant height at both genotypic and phenotypic levels. Fruit yield per plant showed significant and positive correlation between length of fruit and width of fruit at genotypic level in both F-1 and F-2 generations.