Question

What is pollen viability?

Answer 1

Pollen grains:

1. Pollen grains are microgametophytes and are haploid. They have male reproductive gametes in plants.
2. The tube cell of the pollen grain forms a pollen tube and the generative cell discharges the sperm nuclei in the interior region of the pollen grain, which contains cytoplasm.

Pollen viability:

1. Pollen viability is the capability of pollen to get mature and then fertilize and after fertilization, it's the ability to develop into seed and fruit.
2. Male gametophytes are pollen grains. They're made within microsporangia in anthers and discharged when the anther dehisces.
3. Microsporogenesis is the process of producing microspores from a pollen mother cell. To form haploid microspore tetrads, each pollen mother cell divides meiotically.
4. Pollen grains develop from microspores because each cell of sporogenous tissue can produce microspores, each microsporangium can contain thousands of pollen grains in comparison to a single embryo sac in an ovule.