I need a stinky turnip again!!!!?

On Thanksgiving of 2002 my wife cooked a turnip (rutabaga) to go with our dinner. While she was cooking it I noticed that it did not have the pungent odor that I was used to. When we sat down to eat the Turnip was flavorless. Every year since I have noticed that the turnip was not as strong. Has anyone else noticed this? I am going to have my own garden this year- finally. I am wondering if I should use heirloom seeds. I have only eaten rutabaga that I can remember. Will a real turnip have the pungent smell and strong flavor that I remember?. Thanks