Greetings Figger
This has been discussed many times here on the forum, and the general consensus is no. Last year I had a massive root structure, planted it in a pot, it stayed fresh, but no branching. Apparently there are two types of plant cells, those that produce roots, and those that produce the branch,tree part. Your roots just won't reproduce into new trees. But, since u have them give it a go, you might get lucky!