Genetic Variability and Interrelationship in Maize (Zea mays L.) Genotypes for Grain Yield and Yield Component Characters

An experiment was conducted including 20 genotypes of maize during Kharif season 2020-21. All characters under study showed highly significant variation. High values genotypic and phenotypic coefficients variation were observed for the like anthesis silking interval, grain yield per plant, biological yield, number grains row, rows cob, harvest index ear height. Biological plant height, height high heritability coupled with genetic advance suggesting their importance direct selection. Number cobs length, 100 weight, index, exhibited positive association plant. Highest effect on followed interval. Thus priority should be given to these selection improvement.