Second round at guessing this vine

[Ricky2Guns]

Last season I only had a bud break when asking if anyone knew the variety. Now that it’s gone a full cycle, I’ve posted more clues to assist in identifying what it is.
Btw, this isnt a riddle, I ready don’t know what it is, I just know what its not. It’s not as the nursery labeled stated, a Thompson Vine.

* Editing* , to add that the grapes were black/purple, seeded, with a thick skin, size was larger than a cab-sav grape and round.

 

[Snafflebit]

That red color of the stems says to me it is vitus rupestris, most likely a cross breed used as rootstock. Maybe 101-14 or St, George

 

[srcorndog]

Need more trimming

 

[Ricky2Guns]

Yep, just haven’t decided how I want to go about training it.

 

[srcorndog]

Suggestion go to doubleavineyards.com find your vine down load the pdf for the training system use as a guide. Looks like you prefer a top wire cordon

 

[salcoco]

concord?

 

[Ricky2Guns]

I thought maybe Concord, then I read it grew up north because of the chill hours. But when I did more searches I read they do well in zones 7-9, so maybe? I will see if I get good clusters this season and post them.

 

[srcorndog]

I grow Concord in West Georgia USA and very vigorous vine mine are grown on a watson trellis system

 

[Lando545]

Ricky I'm in the same boat you are in. I bought a couple of cheap vines from tractor supply labeled as Thompson seedless. All of them produced large round purple seeded grapes. Matter of Fact the grapes in my profile pic are from those vines. You could always contact your local ag extension and see about getting some petiole samples tested.