Q: I would like to experiment with grafting pear and apple trees. What kind of rootstocks are best and where can I get them?
A: When choosing rootstock, it all depends on how big you want the mature tree to be. If you want a full-sized apple tree, graft onto a pencil- to broomstick-sized seedling tree. If you want a dwarf apple, you can buy Malling rootstocks from Internet suppliers. Pears are grafted onto Callery pear rootstock for a full sized tree. Getting a dwarf pear is more complicated and not recommended until you are sure your grafting technique is first rate.
Lots of good information is available from the University of Georgia’s website Propagating Deciduous Fruit Plants Common to Georgia.
See also Grafting using Super Glue