The dioecious condition prevents:

When the pollen grains are not transferred from anthers to the stigma in a flower due to a physical barrier or fence,or when some natural barrier exists between the androecium and gynoecium to check self-pollination,it is known as:

What is self-incompatibility?

Select the correct option for self-pollination in plants from the following.

Which one of the following favours herkogamy for cross-pollination?

Unisexuality of flowers prevents