P.18 apple rootstock
This information forms part of Agfact H4.1.10 Apple rootstock identification.
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P.18 branch |
P.18 leaf |
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| Origin | Skierniewice, Poland. M.4 × Common Antonovka (1954). |
| Description | Leaf: medium large, wavy edge. Shape: ovate to oval, attenuate tip, obtuse base. Margin: neat, small. Stipules: inconspicuous, elliptical. Shoot: yellowish two-year-old wood. |
| Vigour | Semi-vigorous like M.4. |
| Propagation | Difficult. |
| Resistance | Considerable resistance to collar rot. Hardy. Less susceptible to fireblight than M.9, but just as susceptible to woolly aphid. |
| Uses | Medium-density planting. Not tested in Australia. |