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Current IssueEditorial BoardOnline First ArticlesArchive

volume 40 issue 3 (september 2006) : 208 - 211

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

P
P. Shanthi
P
P. Shanmugasundaram
S
S. Jebaraj*
1Department of Plant Breeding and Genetics, Tamil Nadu Agricultural Univesity, Coimbatore - 641 003, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Shanthi P., Shanmugasundaram P., Jebaraj* S. (2025). HETEROSIS IN THREE LINE RICE (ORYZA SATIVA L.) HYBRIDS. Indian Journal of Agricultural Research. 40(3): 208 - 211. doi: .

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
    Published In
    Indian Journal of Agricultural Research
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      volume 40 issue 3 (september 2006) : 208 - 211

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

      P
      P. Shanthi
      P
      P. Shanmugasundaram
      S
      S. Jebaraj*
      1Department of Plant Breeding and Genetics, Tamil Nadu Agricultural Univesity, Coimbatore - 641 003, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Shanthi P., Shanmugasundaram P., Jebaraj* S. (2025). HETEROSIS IN THREE LINE RICE (ORYZA SATIVA L.) HYBRIDS. Indian Journal of Agricultural Research. 40(3): 208 - 211. doi: .

      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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