Ashna Akbar and H.P. Chaturvedi*
Department of Genetics and Plant Breeding, School of Agricultural Sciences, Nagaland University, Medziphema- 797106
Email: hpchaturvedi68@gmail.com
Received-05.06.2023, Revised-16.06.2023, Accepted-27.06.2023
Abstract: Present investigation utilized 20 soybean genotypes, including 18 from diverse Nagaland regions and 2 reference checks. Using a Randomized Complete Block Design, genotypes were sown with 50 cm row-to-row and 10 cm plant-to-plant spacing in an upland setting. Assessment occurred over consecutive 2017 and 2018 kharif seasons at experimental farm of Department of Genetics and Plant Breeding, School of Agricultural Sciences, Nagaland University, Medziphema. ANOVA revealed significant trait variations. Yearly fluctuations and genetics played crucial roles in shaping soybean traits. Examining soybean traits, notable seed yield variation was observed. Genotypes T1, T8, T9, T10, T11, and T12 exhibited promising yields for cultivation and breeding. Highest values of GCV, PCV exhibited at NC/P with PCV at 51.79% and GCV at 41.64%. NPo/C has PCV 27.9%, GCV 17.71%. NPo/P features PCV at 33.99%, GCV at 28.37%. HSW exhibits PCV reaching 23.29%, GCV at 23%. BY/P stands at PCV 32.02%, GCV 22.63%. Finally, SY/P indicates PCV of 32.89%, GCV of 22.31%. High heritability observed at traits HSW: h² – 97.53% (High), DFF: h² – 95.39% (High), DM: h² – 95.97% (High), PH: h² – 84.34% (High), PoL: h² – 74.99% (High), NC/P: h² – 64.65% (High), NPo/P: h² – 69.67% (High), and Oil%: h² – 68.01% (High). In this study, high heritability coupled with high genetic advance per cent mean observed at Days to 50% flowering, plant height, number of clusters per plant, number of pods per plant and 100 seed weight appear to be governed by additive gene action, enabling breeders to selectively enhance these traits within soybean populations.
Top of Form
Keywords: Soybean, Genetic variability, Heritability, Genetic gain
Allard, R. W. (1960). Principles of Plant Breeding. pp: 96. John Willey and Sons. Inc. New York.
Baraskar, V. V., Kachhadia, V. H., Vachhanl, J. H., Barad, H. R., Patel, M. B. and Burton, G. W and De vane, E. H. (1953). Estimating heritability in tall Fescue (Festuca arundinacea) from replicated clonal material. Agronomy Journal, 45: 478-481.
Chandrawat, K. S., Baig, K. S., Hashmi, S., Sarang, D. H., Kumar, A. and Dumai K. (2017). Study on genetic variability, heritability and genetic advance in soybean. International Journal of Pure and Applied Bioscience, 5 (1): 57-63.
Goonde, D. B. and Ayana, N. G. (2021). Genetic diversity and character association for yield and yield related traits in soybean (Glycine max L.) genotypes. Journal of Agricultural Science and Food Research, 12 (1): 280.
Jandong, E. A., Uguru, M. I. and Okechukwu, E. C. (2020). Estimates of genetic variability, heritability and genetic advance for agronomic and yield traits in soybean (Glycine max L.). African journal of biotechnology, 19 (4): 201-206.
Johnson, H .W., Robinson, H. F. and Comstock, R. E. (1955). Estimates of genetic and environmental variability in soybean. Agronomy Journal, 47: 314- 318.
Joshi, D., Singh, P. K. and Adhikari, S. (2018). Study of genetic parameters in soybean germplasm based on yield and yield contributing traits. International Journal of Current Microbiology and Applied Sciences. 7 (1): 700-709.
Karnwal, M. K. and Singh, K. (2009). Studies on genetic variability, character association and path coefficient for seed yield and its contributing traits in soybean [Glycine max (L.) Merrill], Legume Research. 32: 70-73.
Kumar, S., Kumari, V. and Kumar, V. (2020). Genetic variability and character association studies for seed yield and component characters in soybean [Glycine max (L.) Merrill] under North-western Himalayas. Legume Research, 43 (4): 507-511.
Painkra, P., Shrivastava, R., Nag, S. K. and Kute, I. (2018). Correlation analysis for seed yield and its attributing traits in soybean (Glycine max L. Merrill). International Journal of Current Microbiology and Applied Science. 7 (4): 2034-2040.
Panse, V.G. (1957). Genetics of quantitative characters in relation to plant breeding. Indian Journal of Genetics and Plant Breeding, 28: 225-229.
Robinson, H. F., Comstock, R. E. and Harvey, P. H. (1949). Estimates of heritability and degree of dominance in corn. Journal of Agronomy, 41: 353-359.
Sivasubramanian, S. and Menon, M. (1973). Heterosis and inbreeding depression in rice. Madras Agricultural Journal, 60: 1139-1149.