MM 9 (Dwarf)
M 9 is a dwarf rootstock suitable for high-density planting. It is resistant to the crown rot disease and moderately sensitive to the fire blight and wooly aphid. It is resistant to the illness of the tree tree and mildly susceptible to the blight of flames and wooly aphid. Throughout cultivation, it requires support systems. It should not be grafted on spur-type varieties such as Scarlett Spur, Redchief and Starkspur Golden. For the field, it should be recommended without limiting watering. It is moderately resistant to calcareous and heavy-textured soils. High crop quality, early fruit bearing and elevated efficiency out of a unit region within a brief span of moment are the most advantageous features M 9 offers to the plants.
MM 106 (Middle size)
It is a semi-dwarf rootstock, resistant to wooly aphid and is highly sensitive to disease of crown rot. For heavy-textured and argillaceous soils, it should certainly not be suggested. It has a closer and heavier root structure than rootstocks M9 and M26. Although it is more resistant to the climate than rootstocks M9 and MM 26, it should be chosen for frequent watering plants.For the gardens where MM 106 is grown, support devices are not needed. Within three or four years after planting, it becomes commercially profitable.
MM 111 (Large)
It is a semi-dwarf rootstock bigger than M106 and smaller than standard seedling rootstock. It is resistant to the illness of crown rot, wooly aphid and heavy-textured, argillaceous, calcareous plants with a pH scale above 7. Depending on the circumstances of care, it becomes commercially profitable within four or five years. When early flowering is desired, M 9 may be recommended as the rootstock between the system in some cases. When grafted on spur form and low strength varieties, it provides stronger outcomes.