Grafting onto an established rootstock
Could I graft some dekopon onto an established rootstock, say a piece on each side of the trunk?
Here are the details:
I managed to get about five Sumo/Dekopon seedlings started last spring. I believe four clones and one zygote, since it is only about 4 inches tall, while the others are about 16 inches tall now. One of them even has a fruit forming.
I also have/had a Tahoe Gold mandarin that froze back to the root stock this past winter. The top is dead but the root stock is sending up nice new growth. It's about 1.5 - 2 inches in diameter. I don't know what type the rootstock is. I believe the plant was supposed to be a semi dwarf. I got it from Capital Nursery a couple years ago before they went out of business and I'm not sure where they got their stock. It appears to be a pretty hardy stock since it survived the winter while the top died back.
So, would it be to my advantage to try to graft onto this stock since it is already established?
Thanx a bunch