Apple Rootstock Info: G.890

Characteristic Detail            Description
Rootstock G.890

G.890 is a semidwarfing rootstock that is resistant to fire blight (Erwinia amylovora), crown rot (Phytopthora spp.) and woolly apple aphid. At this time production of root suckers and burr knots is unknown. Tree size is approximately the same as M.7 but with higher and earlier production.

Synonyms Geneva 890
Origin N/A
Availability Limited availability
Tree Size 70-75%
Precocity Intermediate
Winter Hardiness Hardy
Suckering N/A
Tree Support Needed No
Where tested within NC-140 or other

Apple Rootstock Info: G.65

Characteristic Detail Description
Rootstock G.65

G.65 was developed by Dr. Jim Cummins at Cornell University. Due to errors in tissue culture buildup of this rootstock, the U.S. distribution of this rootstock has been hindered. Tree size once thought to be about that of M.9 is now considered to be closer to M.27. The rootstock is difficult to propagate in nursery stool beds. It is susceptible to tomato ring spot virus and apple stem grooving virus. Not recommended for commercial planting.

Apple Rootstock Info: G.16

Characteristic Detail Description
Rootstock 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

Characteristic Detail            Description
Rootstock 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

Characteristic Detail            Description
Rootstock 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.

Synonyms Geneva 969
Origin N/A
Availability Limited availability
Tree Size 70-75%
Precocity Intermediate
Winter Hardiness Hardy
Suckering N/A
Tree Support Needed No
Where tested within NC-140 or other research

Apple Rootstock Info: G.41

Characteristic Detail Description
Rootstock G.41

Resulted from a cross between M.27 and Robusta 5 and introduced by the New York State Agricultural Experiment Station, Geneva, NY. Geneva® 41 and has been tested as CG 3041 and is a full dwarf, similar in size to M.9 NAKBT337. It is highly resistant to fire blight and phytophthora and in initial tests; it appears to be tolerant of replant disease. It is being tested in the 2003 NC-140 trial at 12 locations with

Apple Rootstock Info: G.935

Characteristic Detail Description
Rootstock G.935

G.935 is a 1976 cross of Ottawa 3 and Robusta 5. Size is reported to be slightly larger than M.26, but the rootstock has resistance to fire blight and crown rot. It is not resistant to woolly apple aphid. Production efficiency is rated equal to M.9. In the Golden Delicious trial at Rock Springs in 2006, tree size was about 9 percent larger than M.9 and 12 percent smaller than M.26. Production efficiency was not

Apple Rootstock Info: G.11

Characteristic Detail Description
Rootstock G.11

Resulted from a cross of M.26 and Robusta 5 crabapple and introduced in 1993 by the New York State Agricultural Experiment Station, Geneva, NY. G.11 is one of the more vigorous dwarfing rootstocks and produces a tree similar in size to M.26. It is precocious (similar to M.26), moderately resistant to fire blight, moderately susceptible to woolly apple aphid and crown an root rots, and requires trunk support, especially in the early years. It produces

Apple Rootstock Info: G.214

Characteristic Detail Description
Rootstock G.202

G.202 is a semi-dwarfing rootstock that produces a tree slightly larger than M.26. It is a cross of Malling 27 and Robusta 5. It is fire blight and phytophthora resistant, but also has good resistance to woolly apple aphid, which is important in many warmer climates where woolly apple aphid is a rootstock pest. G.202 performs very moderately well in the stoolbed and produces good quality nursery trees.

G.202 has been tested mostly in New

Apple Rootstock Info: G.210

Characteristic Detail Description
Rootstock 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.

Synonyms Geneva 210
Origin Ottawa 3 and Robusta 5
Availability Trial
Tree Size 60-65%
Precocity Early
Winter Hardiness Hardy
Suckering Low
Tree Support Needed Yes