Dioecious condition prevents
Autogamy
Geitonogamy
Xenogamy
Both $(a)$ & $(b)$
Give scientific reasons : Outbreeding devices increase fertility.
The devices to discourage self pollination are
What is self-incompatibility? Why does self-pollination not lead to seed formation in self incompatible species?
The phenomenon in which, anther and stigma grow and mature at same time is called