APF 268
WithdrawnRubus L. subg. Rubus · Blackberry
John R Clark
Variety traits
Rubus L. subg. Rubus
Blackberry yield is measured in tonnes per hectare or kilograms per bush. Maximum levels are reached in the 4th–5th year and range from 5–10 kg/bush to 28–40 t/ha in intensive plantations.
In the reference 22 varieties crop Blackberry, where this is mentioned in the description.
To assess blackberry productivity, yield indicators per unit area (t/ha) and per individual plant (kg/bush) are used. Data collection is carried out during the extended harvest period over several years to obtain average values, although in the amateur sector, volumetric measurement in liters per bush is sometimes applied.
A high yield for cultivars is considered to be between 5 and 10 kg/bush, while low values are 0.2–0.4 kg/bush. Commercial plantings using intensive technologies can reach 20–28 t/ha, and under optimal conditions, yields can reach up to 40 t/ha.
Realization of yield potential depends on the genetics of the cultivar, cane type, proper lateral pruning, and the use of trellises. Key factors for reduced productivity include frost damage to generative buds during the winter period, fungal disease infection, and imbalances in nitrogen nutrition.
General information about the subject — on the page Yield.
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.
Rubus L. subg. Rubus · Blackberry
John R Clark