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Proceedings: Plant Sciences

, Volume 100, Issue 2, pp 101–105 | Cite as

Stability of pollen sterility in cytoplasmic-genetic male sterile lines in rice

  • S B Pradhan
  • S N Ratho
  • P J Jachuck
Article
  • 31 Downloads

Abstract

On the basis of the shape and staining pattern of pollen grains, 22 cytoplasmicgenetic male sterile lines of 5 different cytosterility systems in rice could be classified into 4 categories, viz., unstained withered sterile, unstained spherical sterile, stained round sterile and stained round fertile. Using this system, the cytoplasmic-genetic male sterile lines were classified into 5 groups, characterised by relative frequency of the different classes of pollen grains.

These cytoplasmic-genetic male sterile lines were grown during 6 seasons (1984 and 1985 wet, 1986 and 1987 dry and wet) to study the stability of pollen sterility. Six cytoplasmicgenetic male sterile liens (V 20 A, Zhenshan 97 A, IR 54753 A, IR 54754 A, IR 54757 A and IR 54758 A) having wild abortive type cytoplasm were found to be stable for pollen sterility.

Keywords

Male sterile lines pollen shape stainability stability 

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References

  1. Chaudhury R C, Virmani S S and Khush G S 1981 Patterns of pollen abortion in some cytoplasmicgenetic male sterile lines of rice;Oryza 18 140–142Google Scholar
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Copyright information

© Indian Academy of Sciences 1990

Authors and Affiliations

  • S B Pradhan
    • 1
  • S N Ratho
    • 1
  • P J Jachuck
    • 1
  1. 1.Division of Plant Breeding and GeneticsCentral Rice Research InstituteCuttackIndia

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