PI 80 Supporter 4 is a useful alternative to M26 where M9 would produce an excessively weak tree. It creates a semi-dwarf, precocious and winter-hardy apple tree with better anchorage than M9 and excellent compatibility with many cultivars. We would nevertheless retain long-term support. Its main weakness is susceptibility to fire blight, so it should not be presented as universally resistant.
PI80 – Supporter 4
Price range: 5,25 € through 5,50 €
A semi-dwarf apple rootstock with vigour similar to M.26 and excellent productivity.
Pre-orders are open
No payment today. You are reserving your trees before the inventory in early August.
After inventory, we will confirm the available trees and send you a payment link.
Dispatch generally takes place from late November to February, depending on the weather and the progress of lifting the trees.
PI 80 Supporter® 4 Apple Rootstock is a semi-dwarf apple rootstock developed at Dresden-Pillnitz in Germany from a cross between M.9 and M.4. It produces trees with vigour generally comparable to M.26, while offering improved productivity and better propagation performance.
PI 80 is appreciated for its excellent compatibility with many apple cultivars, good anchorage and reliable cropping efficiency. Compared with M.9, it produces a somewhat larger and stronger tree, making it suitable for intensive and semi-intensive orchard systems.
This rootstock also shows good winter hardiness and tolerance to woolly apple aphid and crown gall. It is often considered an interesting alternative to M.26, particularly in situations where greater adaptability and stronger rooting are desired.
PI 80 Supporter® 4 remains valued by growers looking for a productive semi-dwarf rootstock combining balanced vigour, orchard efficiency and reliable tree structure.
