|Rootstock||G.214||Geneva 214 (G.214) is a cross of Robusta 5 x Ottawa 3 and tested as CG.4214. Trees on this rootstock will need to be supported and produce a tree about 30-35% size of seedling with vigor and precocity similar to M.9 Nic.29 and M.26. Trees are more productive than those rootstocks and have good cold hardiness, and are resistant to fire blight, Phytophthora root rot and wooly apple aphid. Source: https://extension.psu.edu/apple-rootstocks-capabilities-and-limitations|
Apple Rootstock Info: G.210
G.210 is a semidwarfing rootstock that is resistant to fire blight (Erwinia amylovora) and crown rot (Phytopthora spp.). It is a hybrid from a cross between and is larger than Ottawa 3 but smaller than Robusta 5. It is similar in size to Malling 7 but more productive and precocious.
|Origin||Ottawa 3 and Robusta 5|
|Tree Support Needed||Yes|
Apple Rootstock Info: G.16
Resulted from a cross between Ottawa 3 and Malus floribunda and introduced by the New York State Agricultural Experiment Station, Geneva, NY. G.16 is a dwarfing rootstock and produces a tree similar in size to M.9. It is very precocious and has productivity similar to M.9, and requires full tree support. It is highly resistant to fire blight, quite resistant to crown and root rots, but susceptible to woolly apple aphid. G.16 is hypersensitive to
Apple Rootstock Info: G.30
Resulted from a cross between M.9 and Robusta 5 and introduced by the New York State Agricultural Experiment Station, Geneva, NY. G.30 produces a fairly vigorous dwarf tree, similar in size to M.26. Precocity and productivity are also similar to M.26. G.30 is highly resistant to fireblight and quite resistant to crown and root rots, but susceptible to woolly apple aphid. G.30 was tested at 20 locations in the NC-140 1994 semi-dwarf rootstock trial with
Apple Rootstock Info: G.969
G.969 is a semidwarfing rootstock that is resistant to fire blight, crown rot, and woolly apple aphid. It is classified as having growth control between M.7 and MM.106. The rootstocks produce few root suckers or burr knots. Suggested for trial for growers desiring a freestanding tree.
|Tree Support Needed||No|
|Where tested within NC-140 or other research|
Apple Rootstock Characteristics and Descriptions
Click on a rootstock to access characteristics and descriptions.
|Dwarfing Rootstocks||Semi-Dwarfing Rootstocks||Standard Size Rootstocks|
|Ottawa 3||M.27, M.9 (interstem)/
|Supporter 1||M.7 EMLA|
|Supporter 4||MM.106 EMLA|