I have a quick question here. I have been researching this and I can't find anyone anywhere that is doing it, or reasons why it could or couldn't be done.

anyway

I am hoping to attempt to cross breed root sytems of plants. I'm going to start with something woody. I have two heirloom thornless antique rose plants and three common rose plants. I want to cut a part of the root off both plants and notch them just like you would a graft and then bury and see what happens. I'm not sure if this has been done before or not but my end goal would be peanuts and potates. Give some of the more fragile rooted variaties some stronger roots and maybe even find a cross that makes the roots hardy and frost resitant someday.

Any advice?