Central Potato Research Institute, Shimla, 171 001, (HP).
In a field experiment conducted at Central Potato Research Station, Modipuram, potato seed tubers stored at 4, 12 and 20°C were planted in mid-September, to study the effect of storage temperature on crop growth and yield. Seed tubers stored at 12 and 20°C, which were physiologically older than those stored at 4°C, produced plants with reduced growth vigour. These plants were more susceptible to the high temperature conditions that prevail during crop growth and as a result the yield was reduced.