- Hass is an A-type cultivar, and the choice of a B-type cultivar depends on orchard design and region.
- Studies use paternity, fruit set and retention to answer different questions.
- The response to a complementary cultivar varies among orchards with genetics, climate, distance and flowering window.
The avocado flower has its own clock
Avocado shows synchronized dichogamy: the flower opens in female and male phases at different times. A- and B-type cultivars follow complementary schedules, although overlap can vary with temperature and environment.
For that reason, “cross-pollination” involves genetics, flowering window, climate and orchard positioning, not only the choice of two cultivars.
What the Stahl study showed
In Israel, Stahl and colleagues used SNP markers to identify pollen origin in Hass fruit. In the studied arrangement, Iriet and Ettinger were evaluated as possible pollen donors.
The work found a strong contribution of cross-pollination in the Hass orchard studied; the conclusion describes the cultivars, region and orchard design investigated.
Fruit set and fruit weight
Sagwe and colleagues studied pollination deficit and hive supplementation in smallholder avocado farms in Kenya, measuring fruit set and retention. That work measures fruit set and retention; the 18% study measures fruit weight.
This distinction separates fruit-set evidence from fruit-weight and per-hectare-yield metrics.
How to turn science into a decision
Diagnosis records cultivars present, row spacing, flowering period, fruit-set history and commercial objective. From there, visitation, cross-pollination and other factors are prioritized technically.
At AgroBee, the plan organizes the window and the operation; it does not replace varietal-establishment recommendations or generalize one study to every orchard.
Science to guide. Field execution to operate during flowering.
The literature helps explain mechanisms and results. AgroBee takes that interpretation into a plan that considers crop, area, flowering, logistics, management and follow-up.
View the avocado page →- Open publicationComparing Iriet and Ettinger avocado cultivars as pollinators of Hass using SNPs for paternal identificationPaternity and pollen origin in Hass.
- Open publicationPollinator supplementation mitigates pollination deficits in smallholder avocado production systems in KenyaFruit set, retention and supplementation.
Avocado
Hive supplementation improved physical and commercial fruit parameters in field studies, including fruit weight and quality.
View crop page →Bring the question into the reality of your area and talk to AgroBee about the next flowering window.