Comparison of Kinetin and 6-benzyladenine (BA) on in vitro Microtuberization of Potato Under Short Days Conditions

The influence of different concentrations of BA (6-benzyladenine) and Kinetin on microtuberization was compared.In vitro single node stem segments of potato were cultured on solid MS media supplemented with different concentrations of BA and Kinetin in dark at 22±1°C.No tuberization occurred 2.5 and 5.0 µM BA.Plantlets cultured on media containing 15 µM Kinetin exhibited the greatest microtuberization response.Moreover, considerable increases in yield of microtubers per plantlet were achieved on media containing 15 µM Kinetin.It was observed that high Kinetin concentrations promoted massive microtubers compared to BA at the same concentrations.