In cryopreservation, seeds are immersed in liquid nitrogen at . . . . . . . . °C temperature.

In cryopreservation, seeds are immersed in liquid nitrogen at -196°C temperature.
Plant cryopreservation is a genetic resource conservation strategy that allows plant material, such as seeds, pollen, shoot tips or dormant buds to be stored indefinitely in liquid nitrogen. After thawing, these genetic resources can be regenerated into plants and used in the field.