Apple rootstocks
Rootstocks suitable for grafting apple cultivars, including most crab-apples.
Bittenfelder
Bittenfelder is a very vigorous cold-hardy apple rootstock.G.11
G.11 is a cold-hardy dwarfing apple rootstock, in the M9 size class.G.41
G.41 is a dwarfing rootstock for apples, similar to M9.M116
M116 is a semi-vigorous rootstock for apples can crab-apples.M9
M9 is the most widely-planted commercial dwarf apple rootstock.MM111
MM111 is a popular semi-vigorous rootstock for apple trees.