So it looks like you've only got 2 nodes going below the break. If you go ahead with the snap, it doesn’t look like you'll be leaving your plant with much to recover with...
Don't panic, you have mostly stemmed the blood flow. At your next opportunity, grab some aluminium tape from the hardware store and seal the wound properly. I would expect a full recovery, I've had a couple of 50% breaks on my nodes that have clung on with something to seal the wound.