What are rootstocks?
Rootstocks are the bases where later the varieties of a specific fruit tree are grafted. Each rootstock has differentiating characteristics (vigour, resistance, etc.) and affinities with several types of fruit trees (there are specific rootstocks for grafting pear, peach or cherry trees…) The choice of the rootstock must be made according to the characteristics of the soil where the planting is to be done and is the fundamental basis for the future development of production.
Types of rootstocks:
GF 677: Obtained from the INRA of France. Crossing of peach (Prunus pérsica) x almond tree (Prunus amigdalus). It is currently one of the most used rootstocks. Optimal affinity with varieties of peach, nectarine and almond tree. It adapts well to limestone soils and tolerates ferric chlorosis. Sensitive to nematodes but highly vigorous.
GXN (Garnem): Obtained from the CITA of Aragon. Crossing in Garfi almond (Prunus amigdalus) x Nemared peach tree (Prunus pérsica). Rootstock with great resistance to nematodes and highly vigorous although sensitive to limestone and radicular asphyxia. Compatible with peach, nectarine and almond tree.
Cadaman ®Avimag: Rootstock compatible with all varieties of peach, nectarine and almond tree. Earlier harvest, especially in precocious varieties, providing more intense colouring to the fruits. Gives less vigour in comparison to GF-677 or GXN. Rootstock very resistant to nematodes but sensitive to phytophtora.
Mariana 26/24: Rootstock compatible with prune tree and some varieties of apricot. It adapts well to replantation conditions, due to its resistance to many soil pathogens. It is highly vigorous and it is the rootstock that is most resistant to radicular asphyxia. Moderately resistant to limestone and to nematodes.
Monclar: : Clonal selection of ungrafted peach tree. It has good affinity with varieties of peach, nectarine and almond tree. Gives less vigour and greater sensitivity to nematodes than hybrids of peach x almond tree.
Mirabolano 29/C: Selection of Mirabolano from California. It is the rootstock most used for modern varieties of apricot, and is compatible with prune tree. It gives great vigour, and is resistant to nematodes but moderately resistant to agrobacterium and armillaria. It shows good adaptation to humid terrain with low fertility.