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Biplot Analysis of Adaptability Measures of Barley Genotypes Evaluated under Salinity and Alkalinity Conditions

Author: Ajay Verma, R.P.S. Verma, J. Singh, L. Kumar and G.P. Singh

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Abstract

Analytic measures of adaptability had been defined recently for efficient estimation of GxE interaction under multi environment trials. Highly significant effects of the environment (E), genotypes (G), and GxE interaction had been observed by AMMI analysis. GxE interaction accounted for 38.4% whereas Environment explained 31.7% of treatment variations in yield during first year. Harmonic Mean of Genotypic Values (HMGV) expressed higher values for NDB1445, RD2552, DWRB201 genotypes. Ranking of genotype as per IPCA-1 wereHUB268, DWRB201, RD2999.While IPCA-2, selected RD2907, DWRB201, HUB267 genotypes. Values of Measures ASV1 and ASV identified DWRB201, HUB267, HUB268 barley genotypes. Adaptability measures Harmonic Mean of Relative Performance of Genotypic Values (HMPRVG) and Relative Performance of Genotypic Values (RPGV) identified NDB1445, RD2552, DWRB201 as the genotypes of performance among the locations. Biplot graphical analysis exhibited PRVG, HMPRVG clustered with mean, GM, H

Keywords

AMMI, ASV, ASV1, HMGV, GAI, HMPRVG, Biplots

Conclusion

Researchers concentrates on genotypes with high productive potential that respond to favourable environments. Often the occurrence of complex type GxE interaction leads to uncertainty in the identification of promising genotype; in this case, techniques exploit adaptability and stability can provide precise information about genotypes performance. The identification of stable and highly productive genotypes between different environments remains a constant challenge for breeders of various crop species around the world. Selection of barley genotypes by the harmonic mean of genotypic values allow to identify the stable and productive genotypes for problem soils of the country.

References

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How to cite this article

Verma, A., Verma, R.P.S., Singh, J., Kumar, L. and Singh, G.P. (2021). Biplot Analysis of Adaptability Measures of Barley Genotypes Evaluated under Salinity and Alkalinity Conditions. Biological Forum – An International Journal, 13(1): 420-428.