Bassi, GeetaKamboj, Shaveta2018-01-292018-01-292017http://krishikosh.egranth.ac.in/handle/1/5810040012Present research was conducted to store two different seed lots (fresh and revalidated) of pigeonpea cv. PAU 881 using four different packaging containers (cloth bag, cloth bag containing drying beads, only desiccator and desiccator containing drying beads) under two different temperature regimes i.e. ambient (~27.30C) and cold room temperature (~15.50C) to observe changes in seed quality. Bimonthly data with respect to physiological and biochemical seed quality parameters was observed to determine the quality of the stored seeds. After 12 months of cold room storage conditions (temperature ~15.50C and relative humidity ~55.5%), fresh seed lot with moisture content ~8.42%, when stored in desiccator containing drying beads showed maximum seed quality i.e. germination (81.3%), vigour index I (2990.21), vigour index II (21.41), total soluble sugars (46.77 mg/g), total soluble proteins (218.83 mg/g) and least electrical conductivity (0.63 µmhos cm-1 seed-1). Under same storage conditions, revalidated seed lot (which was already 12 months old) indicated maximum seed quality upto 10 months of storage i.e. germination (76%), vigour index I (2733.72), vigour index II (19.76), total soluble sugars (43.44 mg/g), total soluble proteins (204.65 mg/g) and least electrical conductivity (0.72 µmhos cm-1 seed-1). Maximum deterioration was observed in revalidated seeds when stored under ambient temperature conditions in cloth bag.ennullThesis