Vol. 8, Special Issue 6, Part C (2024)

Abstract: A lab experiment was conducted from June 2021 to Nov 2022 at NSP, Seed unit, UAS, Dharwad. The experimental design was completely randomised design having 3 replications and packed with different combination mixture of gases like N₂, CO₂, and O₂ stored for 18 months of period. Seed quality parameters like speed of germination, mean seedling length and mean germination time were evaluated at bimonthly intervals, the results revealed that the treatment with onion seeds packed in vacuum packaging (T₂₂= Vacuum)) gave good results at the end of the 18 months of storage period. Speed of germination (39.47), mean seedling length (17.62 cm) and mean germination time (1.42 days) respectively compared to other treatments stored in different combination of gases and followed by treatment (T₁= 70% CO₂: 05% O₂: 25% N₂) speed of germination (32.27), mean seedling length (15.88 cm) and mean germination time (1.50 days) respectively.