Variety traits

Vigor — Blackcurrant

Ribes nigrum L.

Vigor determines the intensity of bush development, the rate of branch growth, and the ability to produce 'zero' (basal) shoots, which directly impacts the productivity of the crop.

In the reference 28 varieties crop Blackcurrant, where this is mentioned in the description.

In blackcurrant, this trait is assessed through the overall dimensions of the bush and the length of annual growth, which is critical since the main yield is concentrated on shoots up to two years old. In breeding variety trials, developmental dynamics are analyzed throughout the bush ontogeny from two to five years of age.

High vigor is characterized by the intensive annual formation of vigorous basal shoots, which are necessary for renewing the productive skeleton of the bush. Low vigor, where growth increments are less than 20 cm, indicates plant aging or a decline in potential yield, requiring rejuvenation pruning.

Vigor determines agrotechnical requirements, including the choice of planting scheme and the intensity of training. Vigorous varieties require an increase in spacing between bushes up to 2 meters to prevent overcrowding, and the choice of a suitable bush habit is a key condition for the efficiency of mechanized harvesting.

General information about the subject — on the page Vigor.

Sources8

Varieties of Blackcurrant 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.