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Combining ability studies for development of new hybrids in rice over environments

Author

Listed:
  • P. Saidaiah
  • S. Sudheer kumar
  • M.S. Ramesha

Abstract

Combining ability study on grain yield and its components from line x tester analysis over the locations of fivewell adapted CMS lines and twenty three testers of different eco-geographic origin revealed higher SCA variancethan GCA variance for all the traits indicating the prevalence of non-additive gene action. The lines APMS 6A,PUSA 5A and CRMS 32A and testers 1096, 1005, IBL-57 and SC5 9-3 were the good general combiners foryield and its majority of the traits. IBL-57 was the only good general combiner among the male parents forearliness, dwarfness and grain yield per plant. The hybrids APMS 6A x SC5 9-3, APMS 6A x 1005 and APMS6A x GQ 25 were identified as potential one for yield and desired traits based on sca effects.

Suggested Citation

  • P. Saidaiah & S. Sudheer kumar & M.S. Ramesha, 2010. "Combining ability studies for development of new hybrids in rice over environments," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 2(2), pages 225-225, May.
    • Handle: RePEc:ibn:jasjnl:v:2:y:2010:i:2:p:225
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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