Direct indirect effect and correlation coefficients among flower diameter and its component characters in carnation (Dianthus caryophyllus L.)

Abstract

The experiment was conducted on “Direct indirect effect and correlation coefficients among flower diameter and its component characters in Carnation (Dianthus caryophyllus L.)” on at polyhouse, Horticulture research centre, Sardar Vallabhbhai Patel University of Agriculture & Technology Meerut in 2018-19. At phenotypic level, flower diameter exhibited significant and positive correlation with flower duration (0.51%) followed by leaf pair/stem (0.385). while negative and significant association with days taken to bud opening. Plant height showed significant and positive convolution with stem length (0.968) and stem length displayed positive and significant correlation with leaf pair/stem (0.636). The highest positive direct effect on lower diameter was exerted by flower duration (0.443) followed by days taken to bud appearance (0.331), plant height (0.092) and stem length (0.008) while the negative direct effect on flower diameter by days taken to bud opening (-0.316) and leaf pair/stem.