Name the type of pollination in self-incompatible plants.

Allogamy (cross-pollination) is best favoured by:

Match the following columns regarding plant breeding systems and select the correct option:
Column-$I$: $(i)$ Monoecious, (ii) Dioecious
Column-$II$: $(p)$ Prevents both autogamy and geitonogamy, $(q)$ Prevents autogamy but not geitonogamy
Column-$III$: $(x)$ Papaya and Date palm, $(y)$ Castor and Maize

Give scientific reasons: Outbreeding devices increase fertility.

What is self-incompatibility?

When male and female flowers are produced on different plants in a species,the condition is called: