Genetic Variability and Heritability for Yield and Yield Associated Traits of Wheat Genotypes in Nowshera Valley, Pakistan
Genetic Variability and Heritability for Yield and Yield Associated Traits of Wheat Genotypes in Nowshera Valley, Pakistan
Imadud Din1*, Fazal Munsif1, Irfan Ahmad Shah3, Hamayoon Khan1, Fahad Ullah Khan1, Ibrarullah2, Shahab Uddin4 and Tauqir Islam1
ABSTRACT
Variation of traits is the basic tool involved in the natural assessment and causes to produce sustainable crop under various environmental conditions. The aim of the present study was to assess twenty-four different wheat genotypes for morphological traits and yield components. The experiment was laid out in randomized complete block (RCB) design having three replications. Components of variation, broad sense heritability, genotypic coefficient of variation (GCV), phenotypic coefficient of variation (PCV), range and genetic advance were estimated for yield and yield associated traits. Results revealed significant variation for all traits among the tested wheat genotypes. The results showed the existence of adequate genetic variability among the tested wheat genotypes. High PCV and GCV were found in grains spike-1, while highest broad sense heritability with inferior genetic advance was recorded for plant height. Wheat genotype PR-110 out performed for grain yield, while PR-103 exhibited higher biological yield. Highest number of productive tillers m-2 was counted for PR-111, while intense leaf area index was displayed by PR-103. Hybrid-404 had relatively higher grain spike-1 while PR-114 was observed for highest 1000-grain weight. Among the genotypes Pirsabak-08 excelled for dwarf traits, while Hybrid-403 was found early maturing genotypes. Grain yield was positively correlated with productive tillers m-2, and biological yield. Genotypes PR-110 and Hybrid-404 resulted in superior grain yield among the genotypes. The results should help plant breeders to utilise the most promising wheat genotypes of this study in future breeding programmes for enhancing wheat cultivars.
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