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Study of Genetic Parameters and their Related Statistics in Maize (Zea mays L.) Verma P.N.*, Yadav R.K., Singh Lokendra Department of Genetics and Plant Breeding, CSA University of Agriculture and Technology, Kanpur-208002, Uttar Pradesh, India *email: prem.verma124@gmail.com
Online published on 15 December, 2016. Abstract The genetic components analysis revealed highly significant additive (D) and non-additive (H1 and H2) components for almost all 14 traits studies in both the generations. The estimates of additive (D) genetic components were lower than non-additive (H1 and H2) components for all the attributes in F1 and F2 generation indicating the preponderance of the dominance components of variation. The nonsignificant or low estimates of D were further attested by low or medium values of narrow sense heritability. The magnitude of H1 was greater than that of H2 for all the traits across the generations, which indicated asymmetrical distribution of genes. This was further confirmed by the ratio (H/4H1). For most of the characters positive and significant h values were recorded in F1 generation only, owing to the positive mean direction of dominance. Top Keywords Maize, Analysis, Genetic components, Mean. Top | |
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