Confused in Shaolin

So let me give you a scenario..... Lets say that some plants have been growing for 10 weeks and are not entirely done. These plants must be cut down. Would there be any use in putting the stems full of buds in a cup full of water and nutrients to try and continue growth, or would that be pointless? Just trying to figure some stuff out.

I know you can bring melons in for the winter with the vines attached, and if you put a straw in the vine, and put it in a cup or glass of water it will continue to live. Good luck with this one bro.