2024, Vol. 7, Special Issue 7

author(s)
Sohail Momin, Amit Dadheech, Hemlata Sharma, NK Padiwal and Uttej Karla

abstract
A research trial was conducted during 2023-24 (Rabi) to evaluate the genetic variability parameters of 58 isabgol genotypes. The experiment was laid out in Augmented Randomised Complete Block Design (ARCBD) at Instructional Research Farm, MPUAT, Udaipur. The mean sum of squares due to genotypes for all the characters were significant except for days to 50% flowering, harvest index and husk recovery, as revealed from ANOVA indicating the existence of enormous genetic variability among different genotypes for these traits studied. The marginal difference between GCV and PCV suggested least influence of environment in the expression of traits. Moderate values of GCV and PCV were recorded for number of branches plant^-1, husk yield plant^-1, biological yield plant^-1 and seed yield plant^-1. High heritability coupled with high genetic gain was displayed by husk yield plant^-1 followed by number of branches plant^-1, biological yield plant^-1, seed yield plant^-1, number of florets spike^-1, length of spike, number of effective spike plant^-1, test weight, number of leaves plant^-1 and plant height indicating predominance of additive gene action hence, improvement based on phenotypic value may be efficacious through direct selection.