Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India.

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  • معلومة اضافية
    • Subject Terms:
    • Author-Supplied Keywords:
      Male sterility
      Pollen sterility
      TGMS Rice
    • NAICS/Industry Codes:
      111160 Rice Farming
    • Abstract:
      Hybrid rice technology has guaranteed the food supply for the ever growing population in the world. The identification of male sterility in rice was a breakthrough in the development of rice hybrids since hybrids have a yield advantage over conventional varieties. The hybrid seed production utilizing cytoplasmic male sterility is the widely adopted method in which a cytoplasmic male sterile source, a maintainer and a restorer line should be maintained for successful hybridization. The two line breeding system exploiting thermo-sensitive genic male sterility (TGMS) has a great potential to overcome the difficulties in three line system of hybrid rice development and can successfully be utilized in tropical countries where significant variations in temperature exist between season and between altitudes. TGMS lines are responsive to the temperature during a specific stage between panicle initiation and flowering for the expression of their single recessive nuclear male sterility gene(s). This trait can be transferred to any line of interest by backcrossing. TGMS lines will remain sterile when temperature is above Critical Sterility Temperature (CST) and it will become fertile if the temperature is below the CST. Stable TGMS line EC720903 was imported from International Rice Research Station (IRRI), Philippines and transferred male sterile gene to popular red rice variety Jyothi through backcross breeding. The seeds were sown at monthly interval for twelve months to evaluate the environmental conditions required for complete male sterility during 2017-2018. The TGMS red rice developed was found to be completely pollen sterile with pollen free anthers. On the other hand it was fully fertile at high altitude region with 82.08% seed setting. Therefore the new TGMS red rice line can be considered as a better choice as a female parent for Kerala condition for commercial hybrid rice seed development. [ABSTRACT FROM AUTHOR]
    • Abstract:
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    • Author Affiliations:
      1Department of Plant Physiology, College of Agriculture, Vellayani, Thiruvananthapuram, Kerala, India
    • ISSN:
      0024-9602
    • Accession Number:
      10.29321/MAJ.2018.000170
    • Accession Number:
      136145094
  • Citations
    • ABNT:
      GAYATHRI, R.; STEPHEN, R. Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India. Madras Agricultural Journal, [s. l.], v. 105, n. 7–9, p. 401–403, 2018. DOI 10.29321/MAJ.2018.000170. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=136145094&custid=s8280428. Acesso em: 19 fev. 2020.
    • AMA:
      Gayathri R, Stephen R. Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India. Madras Agricultural Journal. 2018;105(7-9):401-403. doi:10.29321/MAJ.2018.000170.
    • APA:
      Gayathri, R., & Stephen, R. (2018). Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India. Madras Agricultural Journal, 105(7–9), 401–403. https://doi.org/10.29321/MAJ.2018.000170
    • Chicago/Turabian: Author-Date:
      Gayathri, R., and Roy Stephen. 2018. “Characterization of Thermo Sensitive Red Rice Line for Its Suitability in the State of Kerala, India.” Madras Agricultural Journal 105 (7–9): 401–3. doi:10.29321/MAJ.2018.000170.
    • Harvard:
      Gayathri, R. and Stephen, R. (2018) ‘Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India’, Madras Agricultural Journal, 105(7–9), pp. 401–403. doi: 10.29321/MAJ.2018.000170.
    • Harvard: Australian:
      Gayathri, R & Stephen, R 2018, ‘Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India’, Madras Agricultural Journal, vol. 105, no. 7–9, pp. 401–403, viewed 19 February 2020, .
    • MLA:
      Gayathri, R., and Roy Stephen. “Characterization of Thermo Sensitive Red Rice Line for Its Suitability in the State of Kerala, India.” Madras Agricultural Journal, vol. 105, no. 7–9, Sept. 2018, pp. 401–403. EBSCOhost, doi:10.29321/MAJ.2018.000170.
    • Chicago/Turabian: Humanities:
      Gayathri, R., and Roy Stephen. “Characterization of Thermo Sensitive Red Rice Line for Its Suitability in the State of Kerala, India.” Madras Agricultural Journal 105, no. 7–9 (September 2018): 401–3. doi:10.29321/MAJ.2018.000170.
    • Vancouver/ICMJE:
      Gayathri R, Stephen R. Characterization of Thermo sensitive Red Rice Line for its Suitability in the State of Kerala, India. Madras Agricultural Journal [Internet]. 2018 Sep [cited 2020 Feb 19];105(7–9):401–3. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=136145094&custid=s8280428