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Research Detail

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Anowara Akter
Scientific Officer
Scientific Officer, Hybrid Rice Division Bangladesh Rice Research Institute Bangladesh, Gazipur-1701

M Jamil Hasan
Principal Scientific Officer
Principal Scientific Officer, Hybrid Rice Division,Bangladesh Rice Research Institute Bangladesh, Gazipur-1701

Twenty five (25) testcrosses (F1s) along with their respective parents and BRRI dhan49, BRRI hybrid dhan4, IRBB60, TN1& PURBACHI as checks were evaluated. The testcross F1s and their respective male parents were grown side by side in a single row of 15 plants with a single seedling/ hill. Standard check variety was grown after every 10 test cross F1s. Test cross F1’s were evaluated at flowering stage for their pollen sterility.Out of 25 test entries, three (3) entries BR10A/IRBB60, BR11A/IRBB60 BR11A/IRBB59 were found more than one (1) t/ha yield advantage over BRRI hybrid dhan4 with apparently similar growth duration. Two (2) entries, BR10A/IRBB66, BRRI11A/IRBB66 showed more than two (2) t/ha yield advantage over BRRI dhan49 and their growth duration were near about 120 days.

  BLB,Test Cross
  BRRI, Gazipur
  15-11-2012
  25-05-2013
  Variety and Species
  Rice

Specific objectives:

1. Confirmation of maintainers and restorers from the crossed entries.

2.  Selection of heterotic rice hybrids.

3.  Conversion of prospective maintainers into new CMS lines.

Twenty five (25) testcrosses (F1s) along with their respective parents and BRRI dhan49, BRRI hybrid dhan4, IRBB60, TN1& PURBACHI as checks were evaluated. The testcross F1s and their respective male parents were grown side by side in a single row of 15 plants with a single seedling/ hill. Standard check variety was grown after every 10 test cross F1s. Test cross F1’s were evaluated at flowering stage for their pollen sterility.

  
  
Funding Source:
1.  Government Budget:  
  

Out of 25 test entries, three (3) entries BR10A/IRBB60, BR11A/IRBB60 BR11A/IRBB59 were found more than one (1) t/ha yield advantage over BRRI hybrid dhan4 with apparently similar growth duration. Two (2) entries, BR10A/IRBB66, BRRI11A/IRBB66 showed more than two (2) t/ha yield advantage over BRRI dhan49 and their growth duration were near about 120 days.

  Report/Proceedings
  

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