Vol. 12, Issue 11 (2023)

Author(s):
Lokesh Kumar Verma, BD Biradar, Ayyanna, P Kariyannanavar, Rakshith P, Anusha and RS Prajwal

Abstract:
Generation mean analysis is the potent tool to provide information about different types of gene actions, interactions and genetic parameters. To determine the genetic parameters of grain yield and grain related quantitative traits, six generations of the four cross combinations viz., BJV44 × DSMR8, BJV44 × DSMR4, PKV Kranti × DSMR8 and PKV Kranti × DSMR4 were studied employing generation mean analysis during rabi of 2020. The estimates of heritability in the broad sense indicate a high portion of the phenotypic variation and is due to genetic variation for all the traits except for grain width in BJV44 × DSMR8 as here the broad sense heritability was between moderate to high. The extent of narrow sense heritability demonstrates that, except 100 grain volume, additive effects govern more traits than dominance effects. The current study suggests that selection will be successful, leading to a greater response rate, but delayed selection would be more fruitful.