- See also:
- Semi-dwarf M26 class12
AR 86–1–20Semi-dwarf M7 class rootstock
| Used for: | Apple |
| Developed by: | East Malling Research Station |
| Country of origin: | United Kingdom |
| Parentage: | MM106 x M27 |
AR 86-1-20’ has similar vigor and performance to ‘MM.106’, but with the additional advantage of much improved resistance to Collar Rot disease.
AR 86–1–20 rootstock characteristics
- Species compatibilityApple
- Vigour % of standard60% - 70%
- Rootstock size classSemi-dwarf, Semi-vigorous
- Support requiredTemporary support
- Cold-hardinessCold-hardy
- Country of originUnited Kingdom
- Period of origin1950 - 1999
- Woolly aphidSome susceptibility
- Fire blightSome resistance
- Collar rotSome resistance
- Replant complexSome tolerance
Find our more about this rootstock in the 'Manual of Worldwide Temperate Zone Fruit and Nut Tree Rootstocks'.