Genetics of grain yield and its component traits in maize (Zea mays L.)

The six essential generations (2 parents, F1, F2 and backcrosses) of the cross NAI-137 × 97B developed from two parents distinguishable for grain yield were evaluated to construe genetics its component quantitative traits during Kharif, 2019 at University Agricultural Sciences, Bangalore, India. expanse direction additive genetic effects [a], dominance [d], magnitudes variance (σ2A) (σ2D) differed with various under study. Additive ambidirectional dominant involved in controlling most traits. Steep [d] desirable indicated possibility retrieving prudent segregants early segregating while exercising pedigree method handling progenies generated. It was evident results obtained that there dispersion genes among both all studied. Keywords: Additive–dominance model, Epistasis, Genetic gain, Inheritance