Studies on Genetic Variability and Heritability in Bulb Onion (Allium cepa L.) in North-Western Plains of India
DOI:
https://doi.org/10.24154/jhs.v8i2.314Keywords:
Bulb Onion, Variance, PCV, GCV, Heritability, Genetic AdvanceAbstract
A study on genetic variability, heritability and genetic advance was carried out in bulb onion for 13 traits using 43 accessions. The range of variation was highest for bolting (0 to 51.30%), followed by days to maturity (110 to 155 days) and bulb weight (44 to 87.03g). Values for phenotypic coefficient of variation were higher than corresponding genotypic coefficient of variation for all the characters studied. Higher heritability estimates were obtained for plant height, leaf length, days to maturity, number of scales per bulb, polar diameter, equatorial diameter and TSS. Bolting, bulb weight, neck-to-bulb ratio and the lachrymatory factor showed moderate heritability, while, lowest values were observed for leaf girth and number of leaves per plant. Genetic advance varied from 0.06 to 21.82 for leaf girth and bolting, respectively.
References
Anonymous. 2000 Minimal descriptors (for characterization and evaluation) of Agri- horticultural crops. Indian Council of Agricultural Research, New Delhi, Part-1, Pp. 185-89
Anonymous. 2011a. htpp://www.nhb.gov.in
Anonymous. 2011b. Package and Practices of Vegetable Crops. Punjab Agricultural University, Ludhiana, India, Pp. 1-2
Burton, G.W. and Devane, E.H. 1953. Estimating heritability in Tall fescue (Festuca arundinacea) from replicated clonal material. Agron. J., 45:478-481
Dhaduk, L.K., Patel, A.G., Mehta, D.R. and Damasia. D.M. 2011. Genetic variability, correlation and path coefficient analysis in onion (Allium cepa L). Proc. Nat’l. Symp. Alliums: Current scenario and emerging trends. p. 148. Directorate of Onion and Garlic Research, Pune, India
Golani, I.J., Vaddoria, M.A., Mehta, D.R., Naliyadhara, M.V. and Dobariya, K.L. 2006. Analysis of yield components in onion. Indian J. Agri. Res., 40:224- 227
Hosamani, R.M., Patil, B.C. and Ajjappalavara, P.C. 2010. Genetic variability and character association studies in onion (Allium cepa L.). Karnataka J. Agri. Sci., 23:302-305
Johnson, H.W., Robinson, H.F. and Comstock, R.C. 1955. Estimates of genetic and environmental variability in soybeans. Agron. J., 47:314-318
Melke, A. and Ravishankar, H. 2006. Variability and association among bulb yield and yield related traits in onion (Allium cepa L.). Trop. Agri., 83:112-119
Mohanty, B.K. 2001. Genetic variabilityh, inter-relationship and path analysis in onion. J. Trop. Agri., 39:17-20
Pramoda, H.P. and Gangaprasad, S. 2007. Biometrical basis of handling segregation population for improving productivity in onion (Allium cepa L.). J. Asian Hort., 3:278-280
Rashid, M.S., Hossain, M.S., Khalepuzzaman and Rahman, M.S. 2008. Variability and inter-relationship among yield and yield contributing characters in onion (Allium cepa L.). J. Biol. Sci., 16:85-88
Singh, B. and Cheema, C.S. 1985. CPCS- A computer software package. Punjab Agricultural University, Ludhiana, India
Singh, D.N., Nandi, A., Tripathy, P. and Sahu, A. 1995. Genetic variability and correlation in onion (Allium cepa). Indian J. Agri. Sci., 65:793-796
Sultana, M., Islam, A.K.M.A., Rasul, M.G., Mian, M.A.K. and Hossain, T. 2007. Estimation of correlation and path coefficients of seed yield contributing traits in onion (Allium cepa L.). Indian J. Hort., 57:329-333
Trivedi, A.P., Dhumal, K.N. and Lawande, K.E. 2006. Estimates of heritability, genetic advance and correlation between yield and its components in onion (Allium cepa L.) Indian J. Genet., 66:59-60
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