Genetic And Stability Analyses In Oat

Abstract

In the present investigation entitled Genetic and Stability Analyses in oat (Avena sativa L.) was undertaken to know information about genetic and stability parameters for seed yield and its components using 13 parents as 10 lines and 3 testers with line x tester mating design analysis and twenty five genotypes for stability behavior. Experiment A comprised of 30 F1s, and their thirteen parental 13 lines were planted in a Randomized Block Design with three replications during crop season Rabi-2016-2017.Second Experiment consisting of 25 diverse genotypes were planted in a Randomized Block Design with three replications during crop season Rabi-2016-2017 and 2017-2018 at Student Instructional Farm (SIF), CSA University of Agriculture and Technology, Kanpur. The observation were recorded on 20 metric characters namely, days to 50% flowering, days to maturity, biomass yield per plant (g), numbers reproductive tillers per plant, leaf length (cm), leaf width (cm), plant height (cm), number of nodes per plant, number of leaves per plant, biological yield per plant (g), number of seeds per main spike, dry weight per plant (g), test weight (g), harvest index (%), spike length (cm), seed germination in percent, seedling length (cm), seedling dry weight per plant (g), seed vigour index and seed yield per plant (g). the data were recorded were subjected to the various biometrical analysis. Analysis of variance showed significant variability among the parents and diverse genotypes of experiment B for all characters under study which indicated that the wide spectrum of variation among the parents, crosses and diverse genotypes. Analysis of variance among lines and testers with respect to gca and sca of crosses was observed significant differences for all traits. Both additive and dominance genetic variances were involved in the determination of these traits. Lines namely, CSAOFSC12-2, CSAOFSC, JHO3-91, OS344, OS1, CSAOFSC11-4, CSAOFSC11-1, ANDO1, NDO25 and CSAOFSC12-1