R. Madhuri N. Shivakumar K. G. Bindhu H. C. Lohithaswa R. Pavan


An insight knowledge nature and relative magnitude of gene actions involved and combining ability is useful for a breeder to assess nicking ability in self-pollinated crops. In this connection, an attempt was made to esti- mate the gene action and combining ability of 70 newly developed CMS based heterotic rice hybrids developed from ten newly developed CMS lines and seven testers were evaluated for grain yield and its components at Hybrid rice scheme, ZARS, V. C. Farm, Mandya. Among the lines, CMS 2 had significant gca effects at 1% level of significance in desired direction for four traits viz., panicle weight, pollen fertility, spikelet fertility and number of spikelets per pan- icle. Out of seven testers, KMR 3 found to be good general combiner for five traits viz., days to 50 per cent flower- ing, plant height, number of tillers per plant, number of panicles per plant and grain L/B ratio. Among the 70 hybrids, CMS1 × KMR3 was good specific combiner for grain yield per plant and grain L/B ratio. It further revealed that SCA variances were higher than the GCA variances for all the characters which indicated preponderance of non-additive gene action. Hence, CMS 2 and KMR 3 are identified as promising lines which can be used in further breeding pro- gramme.


Download data is not yet available.


Metrics Loading ...




CMS lines, Combining ability, Gene action, GCA, SCA

Abhinav Sao and Motiramani, N. K. (2006). Combining ability analysis for yield and yield contributing traits using cytoplasmic male sterility-fertility restoration system in rice hybrids. Jordan Journal of Agricultural Sciences, 2(1):29-34.
Anand Kumar., Singh, N. K. and Chaudhory, V. K. (2004). Line x Tester analysis for grain yield and related characters in rice. Madras Agricultural Journal, 91(4-6): 56-59.
Arunachalam, V. (1976). Evaluation of diallel crosses by graphical and combining ability methods. Indian
Journal of Genetics, 36(3):358-366
Dadilakshmi and Upendra (2014). Combining ability analysis for quality and nutritional traits in rice.
International Journal of Farm Sciences, 4(2):15-23
Damodar Raju, S., Sudheer Kumar., Surender Raju. and Srijan, A., (2014). Combining ability studies in the selected parents and hybrids in rice (Oryza sativa L.). International Journal of Pure & Applied Bioscience, 2(4): 271-279.
Faiz, F. A., Sabar, M., Awan, T. H., Ijaz, M. and Manzoor, Z. (2006). Heterosis and combining ability analysis in basmati rice hybrids. Journal of Animal and Plant Sciences, 16(1-2): 56-59.
Ganesan, K. N., Thiyagarajan, K., Amarlal, M. K. and
Rangaswamy, M. (1998). Restorers and maintainers for cytoplasmic-genic male sterile (CMS) lines of rice. Oryza, 35(2): 163-164.
Jagadeesan, S. and Ganesan, J. (2006). Combining ability studies in rice (Oryza sativa L.). Indian Journal of
Agricultural Research, 40 (2): 139 – 142.
Kempthorne, O. (1957). An introduction to genetics
statistics. John Wiley and Sons., New york, 458-471.
Kumar, S. T., Narasimman, R., Eswaran, R., Kumar, C. P. S. and Thangavel, P. (2008). Studies on the genetic causes of heterosis in rice (Oryza sativa L.). Advances In Plant Sciences, 21(1): 113-117.
Nadali and Babaein, J. (2010). Heterosis and combining ability analysis for yield and related traits in hybrid rice. International Journal of Biology, 2(2): 222-231
Patil, S. R., Vashi, R. D., Patil, P. P. and Shinde, D. A. (2011).Combining ability in rice (Oryza sativa L.). Plant Archives, 11(1):439-442.
Saidaiah, P., Sudheer Kumar, S. and ramesha, M. S. (2010). Combining ability studies for development of new
hybrids in rice over environments. Journal of
Agricultural Science, 2 (2): 225-233.
Sharma, R. K. and Mani, S. C. (2008). Analysis of gene action and combining ability for yield and its
components in Rice. Oryza, 42(2): 94-97.
Swamy, M. H., Gururaja Rao, M. R. and Vidyachandra, B. (2003). Studies on combining ability in rice hybrids involving new CMS lines. Karnataka, Journal of
Agricultural Science, 16(2): 228-233.
Utharasu, S. and Anandakumar, C. R. (2013). Heterosis and combining ability analysis for grain yield and its
component traits in aerobic rice (Oriyza sativa L.)
cultivars. Electronic Journal of Plant Breeding, 4(4):1271-1279.
Vanaja, T., Luckins, C. Babu., Radhakrishnan, V. V. and Pushkaran, K. (2003). Combining ability analysis for yield and yield components in rice varieties of diverse origin. Journal of Tropical Agriculture, 14: 7-15.
Yuan, L. P. and Virmani, S. S. (1994). Status of hybrid rice research and development. In; Hybrid Rice, Smith, W.H., (Ed.), IRRI, Manila, Philippines, pp:7-24.
Citation Format
How to Cite
Madhuri, R., Shivakumar, N., Bindhu, K. G., Lohithaswa, H. C., & Pavan, R. (2017). Gene action and combining ability estimates of newly developed CMS based heterotic rice hybrids (Oryza sativa L.). Journal of Applied and Natural Science, 9(3), 1557-1565. https://doi.org/10.31018/jans.v9i3.1401
More Citation Formats:
Research Articles