What is self-incompatibility? Why does self-pollination not lead to seed formation in self-incompatible species?

What is self-incompatibility ? Why does self-pollination most lead to seed formation in self-incompatible species?

What is self-incompatibility ? Why does self-pollination not lead to seed formation in self-incompartoble species?

Why does self-incompatibility not lead to seed formation in self-incompatible species ?

Self - incompatibility is

What is self pollination ?

What is meant by self-incompatibility?

What is self pollination?