As a member of NATO, I believe they have nuclear weapons stored in their country, and rights to use as needed. Plus 4 other NATO sharing states. 14 nations total if you count israel . Soon to be Iran making it 15.
NO, Turkey most certainly does not have the right to use the NATO (US) nuclear weapons that may be stored on their soil. We could -allow- them to do so, if WE saw fit. But Turkey does not exercise control over the use of US nukes that might be there.