Abstract
The aim of this study was to assess the effect of seed priming on seed quality of freshly harvested sesame seeds stored in different packaging materials. During 2017-2018 and 2018-2019 different pre-sowing seed priming treatments were adopted for seed production. Freshly harvested seeds were packed in aluminum foils, plastic packets, brown paper packets and cloth bags; and stored under ambient condition to monitor the deterioration pattern of seed quality during 2018-19 and 2019-2020. Germination (%), vigour index, electrical conductivity and α-amylase activity were evaluated at 2 months interval up to 8 months of storage. The results showed that among the packaging materials evaluated aluminum foil can be used for longer period with least deterioration. Among the treatments, polyethylene glycol (PEG) 6000 @ -0.2 MPa, followed by KNO3 @ 50 mM and KH2PO4 @ 200 mM treatments gave high quality seeds in terms of germination, vigour index and electrical conductivity. Therefore, seed priming of sesame seeds with polyethylene glycol (PEG) 6000 @ -0.2 MPa may be done to produce high quality seeds which can be safely stored in aluminum foil.
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