- See also:
- Very-dwarf apple9
- Dwarf apple76
- Semi-dwarf apple40
- Semi-vigorous apple6
- Standard apple20
M4Vigorous apple rootstock
Used for: | Apple |
Developed by: | East Malling Research Center |
Introduced: | 1912 |
In an Indian rootstock trial, trees on ‘M.4’, ‘MM.106’ and ‘MM.111’ were all about the same size. It is cold tolerant and has been used as an understock for interstem trees in cold climates.
M4 rootstock characteristics
- Species compatibilityApple
- Vigour % of standard75% - 90%
- Rootstock size classVigorous
- PrecocityPrecocious
- Support requiredTemporary support
- DeveloperEast Malling Research Station
- PhytophthoraSome resistance
- Fire blightSome resistance
- Burr knotsFew
- Collar rotVery resistant
- Root suckersMany
- Tomato Ringspot VirusSome resistance
Find our more about this rootstock in the 'Manual of Worldwide Temperate Zone Fruit and Nut Tree Rootstocks'.