Manual of Rootstocks

G.30Semi-dwarf M7 class rootstock

Used for: Apple
Developed by: Cornell University / USDA
Country of origin: United States
Parentage: Robusta 5 x M9

G.30 is moderately productive, can be thorny and is suscecptible to the common latent viruses.

G.30 rootstock characteristics

  • Species compatibilityApple
  • Vigour % of standard50% - 70%
  • Rootstock size classSemi-dwarf
  • PrecocityPrecocious
  • Support requiredPermanent support
  • Cold-hardinessCold-hardy
  • Cold hardiness (USDA)(4) -30F / -34C
  • DeveloperCornell University
  • Country of originUnited States
  • Virus toleranceSome susceptibility
  • Woolly aphidSome susceptibility
  • Fire blightSome resistance
  • Burr knotsFew
  • Collar rotSome resistance
  • Crown rotSome resistance
  • Replant complexSome tolerance
  • Root suckersFew

Find our more about this rootstock in the 'Manual of Worldwide Temperate Zone Fruit and Nut Tree Rootstocks'.

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