Answer: The germination percentage for a batch of seeds can be kept relatively high by storing them in doubled plastic bags in the freezer. This keeps respiration (loss of moisture) at an extremely low rate. The germination percentage does gradually go down but the life of the seed is extended. If the seeds were stored at room temperature in the original seed packet, then it depends on what kind of seed we're talking about. Some seed are only good for one year and others can be stored like that for severalyears.
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