Seeds of sesatnum (Sesamum indicum) L. Cv, Gujarat-1), given accelerated ageing at 45±°C and 100% relative humidity (RH) showed loss of germinability with the duration of the treatment. Catalase, peroxidase and total dehydrogenase activities show positive relationship with vigour profile. In contrast, invertase, RNase and acid phosphatase showed an increase with increasing duration of the ageing period. However these activities showed a decrease in aged seeds during germination. Theposs of germinability was accompanied by increased leaching of organic and inorganic constituents from the seed during imbibition.
