Genetic parameters in bread wheat (Triticum aestivum L. em. Thell)

Afield study was carried out to study genetic parameters for twelve traits in bread wheat genotypes including 10 parents and their 45 F₁ 's produced in half-diallel fashion. There was a highly significant difference among all the genotypes for all the traits under study. PCV was somewhat greater than their corresponding GCV for all characters studied. Traits viz., number of productive tillers per plant, flag leaf area, biological yield per plant, grain yield per plant, thousand grain weight, harvest index and number of grains per spike were most selection approachable as they were having higher GCV, PCV, genetic gain and moderate to high heritability in broad sense indicating pervasiveness of additive gene action, therefore, these characters would be useful for further improvement of wheat.