Asian Journal of Bio Science

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Genetic Variability, Heritability and Genetic Advance in Grain Amaranth (Amaranthus Spp.)


Affiliations
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India
2 All India Co-Ordinated Research Network on Underutilized Crops, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India
3 All India Co-Ordinated Research Project on Chickpea, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India
     

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One hundred germplasm accessions of grain amaranth were evaluated during Kharif-2011 for assessing the genetic variability present in the material for grain yield and yield related traits. Analysis of variance revealed significant differences among the genotypes for all the characters studied. High PCV and GCV was observed for stem girth, plant height, panicle length and grain yield per plant. On the other hand, low PCV and GCV were observed fordays to maturity and grain protein content. All the traits studied exhibited high heritability. High genetic advance as per cent of mean was observed for days to 50 per cent flowering, stem girth, number of leaves per plant, plant height, panicle length, panicle width and grain yield per plant indicating scope for improvement of the traits of interest through hybridization and selection.

Keywords

Heritability, Variability, Genetic Advance.
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  • Genetic Variability, Heritability and Genetic Advance in Grain Amaranth (Amaranthus Spp.)

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Authors

L. Venkatesh
Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India
Niranjana Murthy
All India Co-Ordinated Research Network on Underutilized Crops, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India
S. D. Nehru
All India Co-Ordinated Research Project on Chickpea, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India
Manjappa
Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru (Karnataka), India

Abstract


One hundred germplasm accessions of grain amaranth were evaluated during Kharif-2011 for assessing the genetic variability present in the material for grain yield and yield related traits. Analysis of variance revealed significant differences among the genotypes for all the characters studied. High PCV and GCV was observed for stem girth, plant height, panicle length and grain yield per plant. On the other hand, low PCV and GCV were observed fordays to maturity and grain protein content. All the traits studied exhibited high heritability. High genetic advance as per cent of mean was observed for days to 50 per cent flowering, stem girth, number of leaves per plant, plant height, panicle length, panicle width and grain yield per plant indicating scope for improvement of the traits of interest through hybridization and selection.

Keywords


Heritability, Variability, Genetic Advance.