16 Bangladesh J. Sugarcane, 36 : 9-21 June, 2015 Figure 3. Effect of different concentration of NAA on rooting of in vitro grown -1 -1 -1 -1 shoot of sugarbeet (A) 1.0 mgl (B) 2.0 mgl (C) 3.0 mgl (D) 4.0 mgl