What did you use to clear the area around your vines? Did you hand pull the weeds or use a hoe or possibly apply a weed and feed lawn product? The vines look like they have an herbicide damage. If you sprayed Roundup around them and touched the leaves or young green shoots, the spray can cause that type damage. It can also be 2,4-D damage (herbicide) from applying a weed-and-feed type lawn product. The vines will hopefully grow out of it, but it sets them back a bit.
Even though the other rows don't look like that doesn't rule it out. SOme varieties are more susceptible to 2,4-D damage than others.