Variety traits

Maturity group — Blackcurrant

Ribes nigrum L.

A classification trait determining the timing of the full berry maturity phenophase based on varietal characteristics and regional conditions.

In the reference 112 varieties crop Blackcurrant, where this is mentioned in the description.

Blackcurrant ripening periods are classified by calendar intervals: early varieties reach maturity in late June to early July, mid-season varieties in mid-July, mid-late varieties in the second half of July, and late varieties by mid-August. Determining the phase is based on visual criteria: the fruits acquiring their characteristic deep black color, the development of flavor profiles, and the ease with which the berry detaches from the pedicel.

This trait is key for planning harvesting operations and labor organization. It is technologically important to consider the uniformity of berry ripening within a cluster, which is critical for mechanized harvesting. Furthermore, maturity groups correlate with the plant's biological rhythm, influencing the resistance of varieties to recurring spring frosts, as well as storage life and the tendency for overripe fruit to shatter.

General information about the subject — on the page Maturity group.

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.