Question

How long do you think pollen grains retain viability?

Answer 1

Pollen grains viability:

1. Male gametophytes are pollen grains.
2. Pollen grains must land on stigma after they are shed before they lose viability.
3. They can lose viability in as little as 30 minutes.
4. Cryopreservation is an important method of long-term preservation.
5. Liquid nitrogen at a temperature of -196⁰C is ideal for preservation.
6. Pollen seed banks are created, which can be used by crop breeding programmers.