M.9 (RN.29) is a Malling 9 type rootstock. It usually exhibits a better root system than Malling 9. Of the various types of Malling 9, Nic 29® exhibits stronger vigor, yet is still a full dwarf. Trees grown on this root require support. The rootstock is both precocious and productive, usually fruiting in second or third leaf. Fire blight susceptibility is similar to other M 9 strains. Recommended for high density plantings.