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Kiran, K. K.
- Variability and Frequency Distribution Studies in F2 Population of Two Crosses of Rice (Oryza sativa L.)
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Authors
Affiliations
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.k.v.k., Bengaluru, Karnataka, IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru, Karnataka, IN
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.k.v.k., Bengaluru, Karnataka, IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru, Karnataka, IN
Source
Asian Journal of Bio Science, Vol 8, No 2 (2013), Pagination: 153-159Abstract
An investigation was carried out at ZARS, VC Farm, Mandya during 2011-2012 to study the frequency distribution and variability produced in two F2 populations of rice viz.,'IR 64 BPHR-1' and 'Jaya BPHR-1' for grain yield and its seven component characters. The F2 populations of both the crosses showed high PCV and GCV values coupled with high heritability and high genetic advance as per cent of mean for total tillers per plant, productive tillers per plant, grains per panicle and grain yield per plant. Skewness and kurtosis indicated dominance based complementary gene interaction involving large number of genes having decreasing effect in the inheritance of total tillers per plant, days to panicle emergence, productive tillers per plant, grains per panicle and grain yield in both the crosses and for 1000-grain weight in 'Jaya BPHR-1'. However, duplicate interaction was noticed for panicle length in both the crosses; while, 1000-grain weight showed complete ambi-directional epistasis in the cross 'IR 64 BPHR-1'.Contrary to this, plant height exhibited dominance based complete interaction for few segregating genes with majority of them having decreasing effect.Keywords
Frequency Distribution, Gene Interaction, F2 Population, Pcv, Gcv
References
- Agarwal, K.B. (2003). Variability studies in segregating populations of rice. Ann. Agric. Res. New series, 24: 707-709.
- Burton, G.W. and Devane, E.H. (1953). Estimating heritability in tall fescue (Festuca aurundinacea) from replicated clonal material. Agron. J., 45: 478-481.
- Chauhan, J.S. and Chauhan, V.S. (1994). Genetic analysis of grain dimensions and weight and their association with grain yield in rainfed rice (Oryza sativa). Indian J. Agric. Sci., 64: 613-618.
- Chauhan, J.S., Lopez, F.S.S. and Vergara, B.S. (1990). Heritability and genetic advance in early segregating populations of rice. Oryza, 27: 15-20.
- Johnson, H.W., Robinson, H.F. and Comstock, R.E. (1955). Estimates of genetic and environmental variability in soybean. Agron. J., 47: 314-318.
- Kannan Babu, J.R. and Soundrapandian, G. (1993). Genetic variability and association studies in F3 generation of rice.Madras Agric. J., 80: 711-712.
- Kumar, Sanjeev Singh, H.B. and Sharma, J.K. (2005). Genetic variability for morpho-physiological and some quality traits in rice (Oryza sativa L.). Himachal J. Agric. Res., 31: 163-165.
- Mohanthy, H.K. and Singh, S.C. (1969). Biometrical studies in rice with special reference to nitrogen response. Oryza, 6: 23-25.
- Nandeshwar, B.C., Pal, S., Senapati, B.K. and De, D.K. (2010). Genetic variability and character association among biometrical traits in F2 generation of some rice crosses. Electronic J. Pl. Breed., 1: 758-763.
- Nayak, A.R. (2008). Genetic variability and correlation study in segregating generation of two crosses in scented rice. Agric. Sci. Digest, 28: 280-282.
- Paramasivan, K.S. (1986). Study of genotypic, phenotypic variability in hybrids of dwarf and tall indica rice.Madras Agric. J., 73: 527-529.
- Raju, Ch. S., Rao, M.V.B. and Sudarshanam (2004). Genetic analysis and character association in F2 generation of rice. Madras Agric. J., 91: 66-69.
- Singh, Surendra and Chaudhary, B.S. (1996). Variability, heritability and genetic advance in cultivars of rice (Oryza sativa L.). Crop Res., 12: 165-167.
- Snedecor, G.W. and Cochran, W.G. (1974). Statistical Methods. 6th ed., Oxford and IBH Pub. Co., NEW DELHI (INDIA).
- Suresh, A.V. and Reddy, C.D.R. (2002). Studies on genetic variability parameters in a set of parental lines and their F2 population in Rice. The Andhra Agric.J., 49: 307-312.