Pollen banks are playing a very important role in promoting plant breeding programme the world over. How are pollens preserved in the pollen banks ? Explain. How are such banks benefitting our farmer ? Write any two ways.

Pollen can be stored in pollen banks in liquid nitrogen at a temperature of -196°C.

Pollen banks can help farmers by

• Storing pollen of various genetic diversity of crops.
• Pollen can be used for artificial hybridisation purposes.