Manual of Rootstocks

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'.

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