Present study was under taken with a view to improve the yield potential of indigenous (local) potato varieties (IPVs). Six IPVs viz., Lal Shill, Patnai, Shill Bilati, Lal Pakri, Sada Gutti and Challisha were selected as experimental materials. These IPVs are popular among the potato growers of the Northern part of Bangladesh because of their high value due to high culinary quality and storability. In the present study three in vitro techniques viz., i) heat treatment followed by meristem culture for the development of virus free planting materials; ii) induction of microtuber for rapid...