edible part in pome fruit of apple is?

In plant breeding most varieties have their names starting with pusa.eg: pusa komal.can I plz tell me wat actually did pusa refer to

Pome isconsidered asan false fruit.
The ediblepartof it is thalamus (hypanthium) of the Flower and forother infogo though the image attached.
Pusa is place name where the agricultural university is located.
So they are using it if plant breeding happens there.