Self-pollination is a form of pollination in which pollen from the same plant is transferred to the stigma of the same plant. Most flowering plants are capable of self-pollination if the pollen is viable. However, some species of plants have mechanisms that prevent self-pollination, such as the presence of separate male and female plants, or different flowering times.

Plants that are self-pollinated produce seeds through the following process:

1. During pollination, pollen from the anther is transferred to the stigma of the same plant.

2. The pollen grains germinate on the stigma, and then pollen tubes grow through the style and towards the ovules.

3. The pollen tubes deliver sperm cells to the ovules, where fertilization occurs.

4. The ovules develop into seeds.

Self-pollination is an important mechanism for plant reproduction, especially when there are no other pollinators available. It can also be used to create plants that are true-to-type, which is important for commercial plant production.