Rootpac R

General information

Species: Plum x almond (Prunus cerasifera x Prunus dulcis) hybrid.
Origin: Agromillora rootstock genetic improvement programme.

Agronomic characteristics

Vigour: High with varieties of peach, nectarine and plum. Similar to Nemanguard.
Compatibility: Good with varieties of plum, peach and nectarine. It has also proven to be compatible with some varieties of almond and apricot.
Structure: Open, with medium ramification.
Yield: Highly productive.
Size: Anticipates ripening by 2 to 5 days depending on the variety. Results in good fruit size in plum, peach and nectarine.
Adaptability: Very adaptable to various climatic conditions, with different cold requirements. Ideal for replanting sites. Adapts well to dense and asphyxiating soils.
Other features: Green leaf rootstock, with appearance between plum and almond tree. Rigid and erect stem in early development stages.

Resistances and tolerances

Cold: Tolerant.
Chlorosis: Tolerant or ligtly sensitive. High requirement of microelements.
Root-knot nematodes: Highly tolerant.
Agrobacterium tumefaciens: Unknown, although it is probably sensitive, like most plums.
Rosellinia necatrix: It has been shown to be resistant in sites highly infested with this soil fungus.
Root asphyxia: Tolerant to root asphyxia.
Salinity: Under study.
Root-lesion nematodes: Lightly susceptible.