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Articles by M.A. Reza
Total Records ( 4 ) for M.A. Reza
  M. Salah Uddin , K. Nasirujjaman , S. Zaman and M.A. Reza
  The present study was conducted to establish a protocol for rapid multiplication of shoots from different in vitro grown explants viz. shoot tip, nodal segment and cotyledonary node of Peltophorum pterocarpum. All the explants were cultured on MS media containing different concentrations and combinations of BAP, KIN and NAA. Among different hormonal concentrations and combinations, KIN+NAA showed the best result and cotyledonary node explants gave best shoot multiplication. The highest number (4.50 %) of multiple shoots was observed in MS media containing 2.0 mg L-1 KIN+0.5 mg L-1 NAA. In some cases, BAP also showed better result. The regenerated shoots were transferred on MS media having IBA for adventitious root initiation. Then the plantlets with elongated shoots and root system were considered ready to transfer to soil.
  M.S. Islam , M.A. Quasem , M.M Uddin , M.A. Reza and S.K. Das
  To study the innervation to the esophagus of Black Bengal goat a research was conducted in the Department of Anatomy and Histology, BAU, Mymensingh-2202, Bangladesh with 12 Black Bengal goats. All specimens were collected from adult Black Bengal goats (over 6 months of age); irrespective of sex. The esophagus of Black Bengal goat was sampled at six sites- Cranial cervical, middle cervical, caudal cervical, at the level of thoracic inlet, at the middle mediastinum and at the level of cardia. The nerves supplying the upper third of cervical esophagus by the pharyngoesophageal branch of vagus. The caudal two-third of cervical esophagus was innervated by the recurrent laryngeal nerve. The thoracic part of the esophagus was supplied by the recurrent laryngeal nerve and the dorsal esophageal branch of the vagus. The dorsal vagal trunk innervated the esophagus from the heart to the cardia.
  M. Salah Uddin , K. Nasirujjaman , M.M. Rahman and M.A. Reza
  The present study was conducted to induce callus from different in vitro grown seedling explants viz., cotyledon, nodal segment and leaf segment and to develop shoot buds from callus. At first, all the explants were cultured on MS medium supplement with different concentrations and combinations of BAP, KIN, NAA and 2,4-D. Among all the explants, cotyledon showed best performance for callus induction. For this explant, the highest callusing (93.33%) and the highest fresh weight of callus (1.38 g) was observed in MS+2.0 mg L 1 BAP+0.5 mgL 1NAA media composition. Among all the concentrations and combinations, higher concentration of cytokinin (BAP) with lower concentration of auxin (NAA) was proved to be the best for callus induction. Calli, which were obtained from cotyledon and leaf segment in MS+2.0 mg L 1 BAP+0.5 mg L 1 NAA were subcultured in MS media having different concentrations and combinations of BAP and KIN with NAA. It was found that MS medium supplemented with KIN-NAA combination was the best for development of shoot buds from calli.
  K. Nasirujjaman , M. Salah Uddin , S. Zaman and M.A. Reza
  An ideal micropropagation method of turmeric (Curcuma longa Linn.) has been developed using rhizome bud explants. Woody Plant Medium supplemented with different concentrations of BAP alone or in combination with different concentrations of NAA produced varying degree of multiple shoots. A supplementation of 4.0 mg L 1 BAP + 1.0 mg L 1 NAA gave the best result. In this case, 95% of the inoculated explants induced multiple shoots within 8-10 days of inoculation and the average number of shoots per explant was 6.70. Rooting was spontaneous in almost all the treatments. Most of the regenerated shoots were successfully transferred to soil under field conditions.
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