Rootstock comparison table
| Rootstock | M9 |
|---|---|
| Summary | Developed at the famous East Malling Research Center in England, M.9 was the first dwarfing apple rootstock and remains the benchmark in this size class. |
| remove |
Using
| M9 | |
|---|---|
| Species compatibility | Apple |
| Vigour % of standard | 25% - 30% |
Growing
| M9 | |
|---|---|
| Rootstock size class | Dwarf |
| Precocity | Precocious |
| Support required | Permanent support |
Climate
| M9 |
|---|
Identification
| M9 | |
|---|---|
| Developer | East Malling Research Station |
| Country of origin | United Kingdom |
| Period of origin | 1900 - 1949 |
Problems
| M9 | |
|---|---|
| Woolly aphid | Some susceptibility |
| Fire blight | Very susceptible |
| Powdery mildew | Some resistance |
| Burr knots | Some |
| Crown Gall | Very susceptible |
| Collar rot | Some resistance |
| Root suckers | Many |
| Crown rot | Some resistance |