Let me add my own version of clarity...
A single planted rhizome will become a single crown that will mature out after 3 to 4 years. That said, many of the PNW commercial growers put 2 up to 8 rhizomes in a single hill (hole) at a time. This assures that even if the stock is poor, something will grow in that spot and you may even have enough growth to get a decent harvest in the first year.
Next, when the crown is established (2nd or 3rd year and beyond) you will get a dozen or more bines popping out of the crown. Trim off the first ones as they are probably the "bull" shoots that are just rushing up to get sunlight and don't really produce well.
Of the rest, you can train 3 to 5 up a single piece of twine to get .5 to 1.5 lbs of dried hops, depending on variety and growing conditions. If you train more than that, it basically turns into a giant bush that produces nothing but leaves.
You could also train 4 to 6 bines split evenly across a "V" configuration...in other words, two pieces of twine come down to a single crown. Up each twine, you train 2 or 3 bines. Some believe this will "double" production while others think its bunk. From what I've seen, with many varieties you get an increase in production but not twice. At best, 1.5 times more but now you have twice as many bines to harvest and it takes up a lot more room.