Cultivation
Pollinator cultivar — walnut
Juglans regia L.
A pollinator cultivar for walnut is necessary to compensate for dichogamy, where the maturation times of male and female flowers on the same tree do not coincide. Pollination efficiency depends on selecting a pair with synchronous flowering and accounting for the anemophilous nature of the crop.
In the reference 53 varieties crop Persian walnut, where this is mentioned in the description.
Walnut is characterized by dichogamy, divided into protandry and protogyny, which makes self-pollination difficult. To ensure stable yields in orchards, pollinator cultivars capable of cross-pollinating the main cultivar during the periods of female flower receptivity are planted.
When selecting a pollinator, it is important to consider the synchronization of male and female flowering phases, as pollen from other nut species is ineffective. In commercial plantings, pollinators occupy 5–10% of the area and are placed in leeward rows at a distance of no more than 100–150 meters from the main trees to ensure effective wind-driven pollen transfer.
General information about the subject — on the page Pollinizer variety.
Varieties of Persian walnut 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.
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