- The process of transfer of pollen from the anther to the stigma of a flower is called pollination.
- Pollen grains are transferred to stigma by agents like air or water.
Fig. Pollination by an insect
- If the pollens are transferred to the stigma of the same flower it is called self pollination.
- If the pollens are transferred to the different flowers of the same plant or flowers of a different plant of the same kind it is called cross pollination.
Fig.Self-pollination and cross pollination