Vol. 11, Issue 4 (2022)

Author(s):
Prashant Vasisth, S Rangaiah, Mohit Sharma, Vidyut Balar and Vaibhav Chittora

Abstract:
The present investigation was undertaken to access the genetic variability and association studies among M₄ mutants of two gamma rays irradiated genotypes; GPU 28 and KMR 204. A total of 58 M₄ mutant lines (31 of GPU 28 and 27 of KMR 204) of finger millet were evaluated in Randomized Complete Block Design with three replications along with two check cultivars (GPU 28 and KMR 204). Data were collected for eight different quantitative traits on each mutant line. Genetic parameters and correlation coefficients were estimated to access the genetic variability. Study revealed the significant mean sum of square for all the traits among mutant families of GPU 28 and KMR 204 indicated that enough variability was present among the mutant families. High heritability with high genetic advance were reported in both the population for the traits viz., 1000-seed weight, productive tillers plant^-1,ear weight plant ^-1 (g) and seed yield plant ^-1 (g). Traits viz., productive tillers plant^-1, Fingers ear^-1, Finger length, 1000 seed weight and ear weight plant^-1 were found significantly correlated with seed yield plant^-1 for both the populations. Usefulness of induced mutagenesis for generating variability among M₄ mutants line of finger millet well demonstrated through present study.