For α-amylase assay and electrophoretic analysis, experiments wer ecarried out with seeds treated as above. After 2 days, soaked seeds were dried with filter paper and then 3 g of seeds from each treatment were weighed and ground in 12 ml of grinding media consisting of 50 mM MES, pH 6, 5 mM CaCl2 and glycerol 5% (v/v) in ice-cold condition. The homogenate was filtered through Miracloth and centrifuged at 15,000 g for 15 min to clarity and desalted through Sephadex G-25 gel (P10 column). The activity of α-amylase of crude enzyme was determined at room temperature by the dinitrosalicylic acid method according to Bernfeld (1955).