Will The Entire Rootstock Become The Fruit Tree, Even Below The Graft ?

Question

The only graft that “took” was about (5) inches above the ground. What I thought were water chutes at ground level, could they have been fruit tree limbs, peach tree grafts in this case.

Answer 1

This could happen if your one graft does not "take" well, and the fruit that the rootstock produces may not be great. This article may be helpful:
https://www.gardeningknowhow.com/ornamental/trees/tgen/can-grafted-trees-revert-to-their-root-stock.htm