Asian Journal of Bio Science

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Genetic Variability Analysis for Yield and its Component Traits in Rice (Oryza sativa L.)


Affiliations
1 Department of Genetics and Plant Breeding (Agricultural Botany), Udai Pratap Autonomous College, Varanasi (U.P.), India
     

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A wide range of phenotypic, genotypic and environmental co-efficient of variation was observed for most of the characters. Maximum phenotypic and genotypic co-efficient of variation was recorded for panicle bearing tillers per plant followed by grain yield, test weight, number of total tillers per plant, spikelets fertility percentage, plant height, total spikelets per panicle and days to 50 per cent flowering. The range of broad sense heritability (h2b) was obtained from (72.82%) panicle length to (99.64%) spikelets fertility percentage. The genetic advance in absolute terms hanged from 2.87 for panicle length to 34.25 for spikelets fertility percentage. High genetic advance was observed for spikelets fertility percentage followed by panicle length.

Keywords

Heritability, Genetic Advance, Co-Efficient of Variation, Rice.
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  • Bhadru, D.,Tirumala, R.V. Chandra, M.R. and Bharath, D. (2012). Genetic variability and diversity studies in yield and its component traits in rice (Oryza sativa L.) SABRAO. J. Breed. & Genet., 44 (1) : 129-137.

  • Burtons, G.W. (1952). Quantitative inheritance in grasses. Proc. 6thGraddld cong. J, 1 : 227-231.

  • Chandra, B.S., Reddy, T.D. and Kumar, S.S. (2009). Variability parameters for yield, its components and quality traits in rice (Oryza sativa L.). Crop Res. (Hisar), 38 (1/3): 144-146.

  • Chaudhary, D., Rao, M.J.B.K., Prasad, A.B. and Rao, Suriya A.V. (1980). Heritability and correlation in rice, Oryza 17 (3) : 194-199.

  • Chauhan, J.S. Lopez., F.S.S. and Vergera, B.S. (1990). Heritability and genetic advance in early segregating population of rice. Oryza, 27 :15-20.

  • Dhanwani, R.K., Sarawgi, A.K. Solanki, A. and Tiwari, J.K. (2013). Genetic variability analysis for various yield attributing and quality traits in rice (Oryza sativa L.), Bioscan, 8 (4) : 1403-1407.

  • Ghosh, A. and Bhaunik, P.K. (1985). Heritability in some rice crosses. IRRN, 10 (3): 3-4.

  • Johnson, H.W., Robinson, H.F. and Comstock, R.E. (1955). Estimation of genetic and environmental variability in Soybean. Agro. J., 47: 314-318.

  • Kumar, A., Rangare, N.R. and Vidyakar, V. (2013). Study of genetic variability of Indian and exotic rice germ plasm in Allahabad agro climate. Bioscan, 8 (4) : 1445-1451.

  • Mandal, B.K. (1982). Heritability estimates of rice crosses, IRRN, 7 (4) : 3.

  • Maurya, D.M. (1976). Heritability and genetic advance in rice. Oryza, 13 (2) : 97-100.

  • Pandey, P.G. and Singh, D.P.D. (2011). Genetic variability for yield and quality traits in rice (Oryza sativa L.) Res. Crops, 12 (1) : 182-184.

  • Robinson, H.F. Comstock, R.E and Harvey P.H. (1949). Estimates heritability and degree of dominance in corn. Agron J., 41 : 353-359.

  • Singh, Sangam Kumar, Singh, Chandra Mohan and Lal, G. M. (2011) . Assessment of genetic variability for yield and its component characters in rice (Oryza sativa L.). Res. Plant Biol., 1(4): 73-76.


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  • Genetic Variability Analysis for Yield and its Component Traits in Rice (Oryza sativa L.)

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Authors

S. B. Verma
Department of Genetics and Plant Breeding (Agricultural Botany), Udai Pratap Autonomous College, Varanasi (U.P.), India

Abstract


A wide range of phenotypic, genotypic and environmental co-efficient of variation was observed for most of the characters. Maximum phenotypic and genotypic co-efficient of variation was recorded for panicle bearing tillers per plant followed by grain yield, test weight, number of total tillers per plant, spikelets fertility percentage, plant height, total spikelets per panicle and days to 50 per cent flowering. The range of broad sense heritability (h2b) was obtained from (72.82%) panicle length to (99.64%) spikelets fertility percentage. The genetic advance in absolute terms hanged from 2.87 for panicle length to 34.25 for spikelets fertility percentage. High genetic advance was observed for spikelets fertility percentage followed by panicle length.

Keywords


Heritability, Genetic Advance, Co-Efficient of Variation, Rice.

References