Effect of triadimefon on ion leakage in ageing potato tubers during storage at high temperature

Ion leakage (%) was determined in the tubers of three potato (Solanum tuberosum L.) cultivars viz. Kufri Bahar, Kufri Chandramukhi and Kufri Sindhuri, stored at 2–4ºC for different durations followed by storage at 18 ± 1ºC and coupled with repeated desprouting. Significant increase in ion leakage was observed after 150 days of storage at 18 ± 1ºC, with cv. Kufri Sindhuri, showing relatively higher percentage of ion leakage. Triadimefon treatment reduced ion leakage at 75 days of storage at 18±1ºC but not at 180 days of storage. The decrease in ion leakage due to triadimefon treatment was related to the physiological age of the tubers.