Pollen bank is a method where pollens are stored for germ plasm collection. Different types of pollens are collected and stored here for future use. By using these pollens the plants that are facing extinction can be reproduced.
in pollen banks the pollen grains can be stored under viable conditions and can be used whenever needed . they are stored in liquid nitrogen under -196 degree celsius temprature.many pollen grains of different species are stored in pollen banks.