Define pollination. Explain the different types of pollination. List two agents of pollination. How does suitable pollination lead to fertilization?
(i) The transfer of pollen grains from the anther of a stamen to the stigma of a carpel is called pollination.
Different types of pollination are
When the pollen grains from the anther of a flower is transferred to the stigma of the same flower or another flower on the same plant, it is called self pollination.
When the pollen grains from the anther of a flower on a plant is transferred to the stigma of a flower on a similar plant, it is called cross pollination.
(iii) Agents of pollination are:
(iv) Pollination leads to fertilisation by
- Pollen grains reaching the stigma of the flower through the pollination process.
- After that pollen tube develops from pollen grain.
- The pollen grain slides down the pollen tube and enters the ovary where it meets the egg.
- The male gamete present in the pollen grain fuses with the female gamete present in the ovule. Thus, fertilisation takes place.