Vol. 12, Issue 8 (2023)

Author(s):
Himkarsh Parihar, Deepak Saran, Deepak Gauraha, Abhinav Sao and SK Nair

Abstract:
In this study, forty-four advanced breeding lines and three checks of rice were evaluated to determine the genetic diversity exhibited by the experimental material during kharif 2022. The variance investigations revealed highly substantial differences across the 47 advanced breeding lines, indicating that the material has significant genetic variability. Number of filled grains, number of unfilled grains, grain yield, head rice recovery %, amylose %, gel consistency, and alkali spreading value were shown to have high phenotypic and genotypic coefficients of variation. This implies that genetic advancement will result via direct selection. The number of effective tillers per plant, number of filled grains per plant, weight of 100 seeds (g), biological yield per plant, harvest index, yield of grains per plant, head rice recovery %, gel consistency test, and amylose content were the yield and quality traits that showed high values for genetic advance as % of mean as well as high heritability. This meant that the inheritance of these characteristics was controlled by additive gene activity.