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Research Article Open access CC BY 4.0

Genetic Variability of Floral and Agronomic Characteristics that Influence Outcrossing Rate Percentage of Cytoplasmic Male Sterile Rice

M. S. Hossain, N. A. Ivy, S. Maniruzzaman, M. S. Raihan, A. S. Ruma, A. Akter, M. R. Hasan, M. U. Kulsum, M. N. Uddin, K. F. Kabir

Asian Journal of Advances in Agricultural Research · pp. 46–57 · Published 6 May 2023

10.9734/ajaar/2023/v22i1433

Abstract

Developing high-yielding hybrid rice varieties is much needed to ensure food security to meet the requirement of the increasing population across the world. Cytoplasmic male genetic sterility system is a valuable technology for the exploitation of heterosis and production of high-yielding hybrid rice with better grain quality. Large-scale commercial exploitation of hybrid vigor in rice largely depends on the availability of good CMS (Cytoplasmic Male Sterile) lines. A total of eighteen traits of five CMS lines of rice were evaluated to study the variability and correlation between floral and other yield-contributing traits with outcrossing rate using Randomized Complete Block Design with three replications. High significant variation was observed among the genotypes for all the studied traits. High GCV (Genotypic Coefficient of Variance) and PCV (phenotypic Coefficient of Variance) coupled with high heritability and high genetic advance in percent of mean were observed for number of panicles per plant, filled grain, flag leaf breadth, stigma length and breadth, filament length and outcrossing rate which indicated the broad genetic base, less environmental influence, and these traits are under the control of additive gene action. character association and path analysis indicated that number of grains per panicle, filled grains per panicle, stigma length, and breadth possessed both positive significant correlation and positive direct effects on outcrossing rate therefore, selection for the traits mentioned above will certainly bring in the improvement of the outcrossing percentage of the lines, which in turn enhances the seed quantity of the hybrid.

CMS outcrossing rice variability heritability

References (22)

  1. 1 Principles of Plant Breeding. [DOI]
  2. 2 Statistical Tables for Biological, Agricultural and Medical Research [DOI]
  3. 3 Characterization and Use of Male Sterility in Hybrid Rice Breeding [DOI]
  4. 4 Correlation and Causation [DOI]
  5. 5 People's Republic of Bangladesh [DOI]
  6. 6 Genetic Variability, Heritability, Correlation Coefficient and Path Analysis for Yield and Yield Related Traits in Upland Rice (Oryza sativa L.) [DOI]
  7. 7 Heterosis and combining ability analysis in CMS hybrid rice [DOI]
  8. 8 Genetic Variability, Character Association, and Path Coefficient Analysis in Transplant Aman Rice Genotypes [DOI]
  9. 9 Genetic variability, heritability and interrelationship in salt-tolerant lines of T. Aman rice [DOI]
  10. 10 Genotypic variability for grain quality attributes in restorer lines of hybrid rice [DOI]
  11. 11 Utilization of Genetic Resources, Genetic Diversity and Genetic Variability for Selecting New Restorer Lines of Rice (Oryza sativa L.) [DOI]
  12. 12 Genetic Mapping to Detect Stringent QTLs Using 1k-RiCA SNP Genotyping Platform from the New Landrace Associated with Salt Tolerance at the Seedling Stage in Rice [DOI]
  13. 13 Floral traits and flowering behaviors of Malaysian rice cytoplasmic male sterile and maintainer lines and its relationship with out-crossing performance [DOI]
  14. 14 Putting Plant Genetic Diversity and Variability at Work for Breeding: Hybrid Rice Suitability in West Africa [DOI]
  15. 15 Genetic Variability, Correlation and Path Analysis of Floral, Yield and its Component Traits of Maintainer Lines of Rice (Oryza sativa L.) [DOI]
  16. 16 Prevalence and Transmission of Fusarium moniliforme: A Seed Borne Pathogen of Rice [DOI]
  17. 17 Nutritional Properties of Some BRRI HYV Rice in Bangladesh [DOI]
  18. 18 Genetic variability and association analysis in rice (Oryza sativa L.) germplasm based on biometrical and floral traits [DOI]
  19. 19 Assessment of Genetic Variability and Correlation for Floral, Yield and Yield Contributing Traits in Rice (Oryza sativa L.) [DOI]
  20. 20 Developing Pusa 5A, a stable indica CMS line with high outcrossing potential [DOI]
  21. 21 Marker-based analysis of CMS lines for grain and kernel traits in rice hybrids [DOI]
  22. 22 International Journal of Environment and Climate Change [DOI]

Cited by 6

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Sheikh Maniruzzaman, M. Akhlasur Rahman, Mehfuz Hasan · International Journal of Molecular Sciences · 2023

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