Manual of Rootstocks

Pyro 2-33Semi-vigorous European pear rootstock

Used for: European pear
Developed by: Geisenheim Research Station, Germany
Country of origin: Germany
Introduced: 1980
Parentage: Old Home x Louise d'Avranches

Pyro 2-33 is a semi-vigorous rootstock for European pears.

Pyro 2-33 rootstock characteristics

  • Species compatibilityEuropean pear
  • Vigour % of standard65% - 75%
  • Rootstock size classVigorous
  • PrecocityPrecocious
  • Support requiredTemporary support
  • Cold-hardinessCold-hardy
  • Cold hardiness (USDA)(5) -20F / -29C
  • DeveloperGeisenheim Research Institute
  • Country of originGermany
  • Period of origin1950 - 1999
  • Woolly aphidSome resistance
  • Fire blightSome resistance
  • Powdery mildewSome susceptibility
  • Crown GallSome resistance
  • Root suckersNone

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