Originally Posted by B-Hoppy
I would say some type of nutrient deficiency also, but they're growing in the same pot with the same soil. Why is one healthy looking and the other not? I've had some stray shoots look like that growing right next to very healthy ones coming off of the same crown. Don't know what it is. Possibly a virus . . . ? I'd just let them grow and see what happens. Just me though.
Good point tho it isn't completely unheard of for a different part of a plant to exhibit symptoms faster than another. The shoot in question looks newer than the larger ones next to it which could cause it to be faster to show a problem. Could be viral but if that's the case the whole rhizome would be infected. Keep us updated!
Edit: If you look at the new growth on the healthier bines they look to be turning yellow on the margins and surrounding the veins. http://customers.hbci.com/~wenonah/min-def/hops.htm
...look at that link. Magnesium deficiency looks pretty similar. I had a chlorosis problem linked to Mg last year as well.