I think the dormancy is triggered by shorter days and lower temps. If
you don't have these it will be no different from growing them under
lights year 'round, i.e. you'll have to simulate the conditions for
them to go dormant. I'm from California, so I don't know much about
seasons. Will you get cooler temps later?
Somewhere I read that the cooler temps cause the plant to produce
a natural anti-freeze, which protects it a bit in winter. By the
same token, I've heard that naturally dormant plants are more resistant
to rot during dormancy.
Robert