Uzi
ActivePersea americana Mill. · Avocado
The Regents of the University of California
Cultivation
Avocado scion
Persea americana Mill.
The avocado scion requires genetic compatibility with the rootstock, with the success of the graft union depending on membership in specific botanical races and the physiological state of the scion during the ecodormancy period.
In the reference 3 varieties crop Avocado, where this is mentioned in the description.
Avocado grafting is limited to intraspecific combinations, as interspecific attempts on related plants yield no results. The grafting efficiency is determined by whether the scion and rootstock belong to the Mexican or Guatemalan races, which influences the longevity and habit of the tree.
In commercial avocado production, the selection of the scion-rootstock combination aims to utilize clonal rootstocks with proven tolerance to root rot caused by Phytophthora cinnamomi. Preference is given to clonal rootstocks to ensure uniformity of yield and productive characteristics.
Scion survival depends directly on its condition: using scions in the ecodormancy phase ensures better histological compatibility of the xylem and phloem than during periods of active growth. Critical success factors are the precision of cambial layer alignment and the timing of the grafting operation.
General information about the subject — on the page Scion.
Varieties of Avocado mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.