I've been looking at the root pruning pots and wanted to experiment with them this year. I've seen people on YouTube using A cloth like root pruning bag and they'll set it in a kiddy pool of water. They just keep the water topped up and the pots wick up what they need.
My question was, when the roots grow down to where the water level is, will the root tips die and cause back branching on the root the same way it does when exposed to air?
I can see it going either way. I could see the plant knowing it and grow into water and killing the tip that's touching it, causing the roots to back branch. I can also see it rotting and allowing bacteria in. Obviously, plants can be grown this way, because plenty of plants (non-water plants) grow beside water and there are the YouTube videos where they get better than expected results, but does it prune the roots and would it be healthy for the plant in the long run, like if you were trying to start trees from seeds or cuttings and were worried about them drying out.