Fruit tree grafting is extremely easy. You can graft a twig from several apple varieties into one tree, letting that one tree self-pollinate.
Editing to elaborate a little:
Cut the twig at an angle, leaving as much cross section of exposed bark as possible. Then line it up with a cut branch on the tree so the cut bark joins up - if it can’t heal it won’t take. Then tape it up. I had a special kind of tape for the class but I don’t think it matters so much as long as you can keep them joined.
Fruit tree grafting is extremely easy. You can graft a twig from several apple varieties into one tree, letting that one tree self-pollinate.
Editing to elaborate a little:
Cut the twig at an angle, leaving as much cross section of exposed bark as possible. Then line it up with a cut branch on the tree so the cut bark joins up - if it can’t heal it won’t take. Then tape it up. I had a special kind of tape for the class but I don’t think it matters so much as long as you can keep them joined.
Masking tape is the easiest tape to use for this. Buddy tape or grafting parafilm is the high end way.
Look up cleft grafting for the easiest most common graft Apples are super easy - not all fruit trees are though.
Relevant link: https://en.m.wikipedia.org/wiki/Tree_of_40_Fruit