Question

Majority of angiosperms have hermaphrodite flowers, but self-pollination is discouraged by them. Explain any three outbreeding devices that they have developed to achieve this.

Answer 1

Hermaphrodite flowers are found in the majority of angiosperms, however, they prevent self-pollination. In order to accomplish this, the following three outbreeding devices have formed:

1. Release of pollen with stigma receptivity either before or after stigma receptivity.
2. Stigma cannot come into contact with the pollen of the same flower because it is positioned differently from the anther.
3. Some plants have unisexual flowers, with the male and female flowers developing from separate plants.