Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2003.936.940YasminS. NasiruddinK.M. BegumR. TalukderS.K. 122003212The experiment was conducted in the USDA Biotechnology Laboratory, Biotechnology Department, Bangladesh Agricultural University, Mymensingh to observe the effect of NAA and BAP on callus formation and regeneration from leaf and internodal segment explants. Five levels of each of NAA (0, 1.25, 2.5, 5 and 10 mg l-1) and BAP (0, 0.5, 1, 2 and 4 mg l-1) were applied to MS media for callus induction as well as plantlet regeneration. Twenty explants were cultured in each combination. Leaf showed better performance in callus induction and plantlet regeneration. The highest percentage of callus (95%) was induced with 2.5 mg l-1 NAA + 2 mg l-1 BAP and also minimum time (8.13 days) was required for callus induction in the same concentrations. The percentage of regeneration showed the highest value (80%) with 2.5 mg l-1 NAA + 2 mg l-1 BAP of all the combinations. It was also observed that callus derived from leaf produced plantlets in a shortest period of time (23.68 days) compared to that from stem (28.96 days).]]>Alphonse, M., M.A. Badawi, T.M.N. Eldeen and M.M. Elfar,1998in vitro. ]]>25129144Rabbani, A., B. Askari, N.A. Abbasi, M. Bhatti and A. Quraishi,2001in vitro multiplication of potato.]]>3181182Dobranszki, J., H.A. Takacs, T.K. Magyar and A. Ferenczy,1999475961Ehsanpour, A.A. and M.G.R. Jones,2000Solanum tuberosum L.) cv. Delaware by thidiazuron TDZ. ]]>44754Fiegert, A.K., G. Mix-Wagner and K.D. Vorlop,2000Solanum tuberosum L. cv. Tomensa: Induction of somatic embryogenesis in liquid culture for the production of artificial seed.]]>50199202Fomenko, T.I., I.P. Kondratskaya, M.K. Malyush and L.G. Berdichevets,2000Solanum tuberosum L.).]]>3401408Hamdi, M.M., E. Ceballos, E. Ritter and J.I.R. Galarreta,1998Solanum tuberosum L.]]>13159166Hansen, J., B. Nielsen and S.V.S. Nielsen,1999In vitro shoot regeneration of solanum tuberosum cultivars: Interactions of medium composition and leaf, leaflet and explant position.]]>271728Jayasree, T., U. Pavan, M. Ramesh, A.V. Rao, K.J.M. Reddy and A. Sadanandam,2001641317Martel, A. and E. Garcia,1992In vitro formation of adventitious shoots on discs of potato (Solanum tuberosum L. cv. Sebago) tubers.]]>535764Yadav, N.R. and M.B. Sticklen,1995Solanum tuberosum L.]]>14645647Zel, J., M.M. Mlakar, B. Vilhar, D. Grill and H. Guttenberger,1999Solanum tuberosum L.) cv. Igor in vitro. ]]>39277282