I can’t help you about grapes and grape breeding. I have table and wine grapes that i treat and harvest grapes but don’t know much about it…
Isn’t it customary in the US to graft vinifera on American rootstocks?
are you from Portugal ? I’d love to vistit portugal… a great friend of mine lives in portugal!
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Yes i’m Portuguese from center Portugal.
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Thak you anyway for your interest… which varieties have you got?
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You can see it on my thread:
My small fruit tree orchard - General Fruit Growing - Growing Fruit
Wine grapes (53):
Touriga nacional
Castelão
Touriga Franca
Aragonês
Cabernet Sauvignon
Alicante Bouchet
Table Grapes (28):
Moscatel Graudo
Moscatel
Alphonse Lavale
Cardinal
Sulima
Pizutello Nero
Hamburgo
Don Mariano
Red Globe
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Congratulations! I don’t know many of your varieties … but it will be a good opportunity to calmly look at your list in the next few days which seems very interesting … 
I have many muscats (many single specimens), - some fruit vines -, and the bulk of the vineyard (about 50 plants) is cultivated with arneis. Finally five Viognier, and some plants of the heart given to me by an old granny and which are not even in the national registers
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Some of them are portuguese varieties…
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Grape is incredible… how much biodiversity and
heterozygosity and “secret” genetic caracters it has! And more, it is so deeply radicated in uman history, beliefs, traditions… it has some kind of magic!
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And the leaves can be used too… 
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I knok greek Dolmades, but I never use my leafs because I have to make
phytosanitary treatments (expecially in the place I live)…
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Me too… but there are some varieties that don’t nead treatment. We call it “americana”. I want to have some few to harvest leaves.
I have some hybrids viniferaxamerican grapes (that don’t receive treatments) but I not sure that it can be used for dolmedes It’s better go to some greek Island and have sealife and food for some years after this awful situation we’re living. Anyway as hybrids I have Norton, Philipp, Fragola bianca, Fragola nera, Solaris, Bronner, POloskei Muskotali and Muscat blue… they don’t receive treatments. What else can be done with leafs?
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You can eat them on salads, making rools, juice…
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I will surely taste them. If you are looking for a grape from which take leafs i suggest You to take an hybrid rootstock like so4 or Kober 5bb, it will only make leafs, very similar to vinifera ones and very resistant to plant diseases… some leafs of some hybribs are very fleshy and I suppose that the in mounth the sensation wouldn’t be as delicate as it is in vinifera leafs…
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That is chinese to me… 
How can i get those?
Muscat is awesome
Have any hybrid seeds to share or trade?
No seeds sorry… (I usually grow seeds after pollination and fruit maturation, for my crossing attempts). But I can trade muscat cuttings… I’m looking for some american vitis acerifolia cuttings…
If you want naturally pollinated seeds (from a vineyard with many different species) I can send you tons… but I hold for myself deliberate crossing seeds…
How does pollination work when crossing grapes?
And how do you prevent the flowers from pollinating themselves?