HETEROSIS IN THREE LINE RICE (ORYZA SATIVA L.) HYBRIDS

Article Id: ARCC2772 | Page : 208 - 211
Citation :- HETEROSIS IN THREE LINE RICE (ORYZA SATIVA L.) HYBRIDS.Indian Journal Of Agricultural Research.2006.(40):208 - 211
P. Shanthi, P. Shanmugasundaram and S. Jebaraj*
Address : Department of Plant Breeding and Genetics, Tamil Nadu Agricultural Univesity, Coimbatore - 641 003, India

Abstract

Out of 50 hybrids developed by using five CMS lines and 10 testers, 20 hybrids involving CMS
lines viz., COMS9A and IR66707A which, are developed from Oryza perennis cytoplasmic source
showed 100 per cent pollen and spikelet sterility. Although these hybrid combinations have no
direct use as hybrids, they can be pursued further to develop new CMS lines with diverse nuclear
genome. In the remaining 30 hybrids, IR58025A/IR65514R, IR58025A/IR42266R, IR58025A/
IR50404R and IR58025A/IR29341R were considered as superior hybrids with high yield and
desirable yield attributing characters suggested for commercial exploitation.

Keywords

References

  1. Anand, G. et al. (1999). Oryza, 36: 114-117.
  2. Dalmacio, R. et al. (1995). Euphytica, 82: 221-225.
  3. Elsy, C.R. (1997). Ph. D. Thesis, TNAU, Coimbatore.
  4. Jones, J.W. (1926). J. Am. Soc. Agron., 18: 423-428.
  5. Lin, S.C. and Yuan, L.P. (1980). In: Innovative approaches to rice breeding, IRRI, Manila, Philippines, pp. 35-51.
  6. Mishra, M. and. Pandey, M.P. (1998). Oryza, 35: 8-4.
  7. Sathya, A. et al. (1999). Crop Res., 18: 243-246.
  8. 210 INDIAN JOURNAL OF AGRICULTURAL RESEARCH
  9. Selvarani, M. and Rangaswamy, P. (1997). Oryza, 36: 80-81.
  10. Vijaykumar, C.H.M. et al. (1999). Indian J. Genet., 59: 295-300.
  11. Young, et al. (1983). Phillip. J. Crop Sci., 8: 119-124.
  12. Yuan, L.P. (1966). Sci. Bull., 4: 32-34.
  13. Yuan, L.P. (1977). Chinese Agr.Sci., 1: 27-31.
  14. Yuan, L.P. and Virmani, S.S. (1988). In: Hybrid Rice. IRRI, Manila, Philippines

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