Tomato stems have the interesting capacity to form roots all along the stem, so that's what I think you're seeing.

Carolyn

yes they start by looking like little white bumps.

I think you'd be better off by getting them into the soil right away. Those new roots in water aren't going to like it when you try to transplant, they're delicate. Get 'em into their permanent home and you're on your way. One tough weed those tomatoes.

I don't know where you live, and whether your weather is hot or cold... But I would suggest you transplant only when several cool days lie ahead of you.

Here in southern California the heat can challenge such efforts. I have successfully "slipped" tomatoes this way, though. Loose, well-composted soil will be "appreciated" by your new plant.

I think you'd be better off by getting them into the soil right away. Those new roots in water aren't going to like it when you try to transplant, they're delicate. Get 'em into their permanent home and you're on your way. One tough weed those tomatoes.

****

I agree completely. I never root cuttings in water b'c if you do they just have to adapt root structure to a solid matrix anyway.

So I normally just stick them in good artificial mix.

But if it's critter/weather damage out in the tomato patch I snap off a piece and stick it in the ground next to the damaged plant, build a small moat around it and keep it filled with water until I see new growth.

Carolyn