Call for Papers : Volume 15, Issue 03, March 2024, Open Access; Impact Factor; Peer Reviewed Journal; Fast Publication

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Genetic variability and selection parameters for yield and quality traits in maize

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45F1 maize hybrids produced through a line x tester mating and 15 inbred lines and 3 testers were evaluated with three replication at Chandra Shekhar Azad University of Agriculture and Technology, Kanpur to determine the genetic parameters governing the inheritance of grain yield and quantitative traits. The genetic parameters studied among the traits included the mean performance, genotypic variances, phenotypic variances, genotype by environment variances, broad sense heritability and phenotypic and genotypic correlation coefficients. Significant differences were recorded for all traits studied thereby revealing the diversity of the maize genotypes. The grain yield and biological yield which showed high heritability had high genotypic variances suggesting the involvement of additive gene action. Germination %, seedling length (cm) and protein content (%) showed the highest heritability and low genotypic variance suggesting the preponderance of non-additive gene action. Grain yield was positively and strongly correlated with biological yield, germination%, harvest index and seed vigour index. The positive relationships observed in this study imply that the desirable traits in these hybrids could be exploited in further breeding activities for the development of composites and synthetics for the resource constrained maize farmers who cannot access hybrid seeds every year.

Author: 
Yogesh Pandey, Vyas, R.P., Singh, H.C., Lokendra Singh, Singh, C.B., Yadav, P.C. and Vishwanath
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