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Articles by Sharmin Shahnewaz
Total Records ( 2 ) for Sharmin Shahnewaz
  Sharmin Shahnewaz , M.A. Bari , N.A. Siddique and M.H. Rahman
  The present studies were carried out to evaluate the response of anthers of six rice genotypes to callus induction and plant regeneration. For callus induction Z2 media supplemented with 2, 4-D 0.5 mg l-1, NAA 2.5 mg l-1 and Kinetin 0.5 mg l- was used. Of the six genotypes, five gave good callusing response. Highest callus induction was observed in BRRI Dhan-29 (8.06%) and lowest in BR-10 (1.42%). Callus induction frequency varied from 1.42-8.06% depending on genotypes. Modified MS medium supplemented with Kinetin 0.5 mg l-1, BAP 2 mg l-1 and NAA 1.0 mg l-1 was used for plant regeneration. The results showed a significant genotypic difference in callus induction and plant regeneration. The regeneration of plantlet from anther derived calli ranged from 57-75% conclusion.
  Sharmin Shahnewaz , M.A. Bari , N.A. Siddique , N. Khatun , M.H. Rahman and M.E. Haque
  Anthers of three rice cultivars having late uninucleate microspores were studied for induction of haploid rice plants. Anthers were cultured on Z2 medium supplemented with various combinations and concentrations of auxins and kinetin (cytokinin). The best callusing from cultured anthers obtained in 2 medium containing 2,4-D 2 mg l-1, NAA 2.5 mg l-1 and kin 0.5 mg l-1. For regeneration of haploid plantlets anther derived calli were transferred to modified MS medium enriched with kin 1 mg l-1, NAA 1 mg l-1, BAP 1.0 ml l-1 and incubated at 25±1OC in light. BRRI Dhan-29 produced both green and albino plants while BR-3 produced green plants only. Green plantlets obtained from BRRI Dhan-29 were examined and found to be 69.2% haploid plants.
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