Variety traits

Maturity group — leaf lettuce

Lactuca sativa L. var. crispa L.

A classification trait determined by the number of days from emergence to technical maturity, at which point a leaf rosette of marketable size is formed.

In the reference 11 varieties crop Leaf lettuce, where this is mentioned in the description.

For leaf lettuce, early-maturing varieties reach technical maturity 30–45 days after emergence, while mid- and late-maturing varieties require 50 to 80 days. This indicator is closely related to the crop's photoperiodic response, as lettuce is a long-day plant.

When selecting a variety, bolting resistance is taken into account, as early varieties are more prone to rapid transition to the flowering phase with rising temperatures and increasing day length. Choosing maturity groups allows agronomists to organize staggered production and adapt crops to spring, summer, or autumn growing conditions.

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

Sources8

Varieties of Leaf lettuce 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.