[jmheflin]

Great question. Grape vines have an extremely heterozygous genome, which means that their offspring (seeds) will not resemble the parent plant. This is why grapes plants are always propagated via cuttings. I wrote a post about grape clones on the site if you are interested. https://www.hefvin.com/posts/varietal%20clones/

[rsync]

It may interest you to know that the Bonny Doon guy, from the Santa Cruz area, has been attempting to grow wine grapes from seed:

https://www.bonnydoonvineyard.com/on-a-mission-the-germ-of-a...