Part 3/7:

Self-Pollination vs. Cross-Pollination

Self-pollination happens when pollen from the anther of a flower lands on the stigma of the same flower or another flower on the same plant. This form of reproduction typically does not require external agents, such as pollinators, as the plant can achieve fertilization on its own. A characteristic of plants that self-pollinate is that their stamens and carpels mature simultaneously and are structured to allow for direct pollen transfer, which can often occur via wind.

In contrast, cross-pollination involves the transfer of pollen from the anther of one flower to the stigma of another flower from a different individual of the same species. This method usually requires the assistance of external agents like insects or wind.