Faunas
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Variety traits
Lettuce maturity group
Lactuca sativa L.
A trait determining the duration of the period from emergence to technical maturity, classifying varieties into early-maturing (40–45 days), mid-maturing (50–60 days), and late-maturing (70–80 days or more).
In the reference 589 varieties crop Lettuce, where this is mentioned in the description.
For lettuce, the maturity group is measured by the number of days from seedling emergence to the stage of reaching market quality suitable for harvesting. Professional classification includes early-maturing varieties with a maturation period of 40–45 days, mid-maturing varieties — 50–60 days, and late-maturing varieties, which require 70–80 days or more.
The trait is closely related to the plant's response to photoperiod and temperature. Under long-day conditions and high temperatures, early-maturing varieties are more prone to bolting, which leads to leaf coarsening and the development of bitterness. The selection of a maturity group is decisive for organizing sequential production, selecting varieties for a specific seasonal rotation, and choosing the cultivation method, such as direct seeding or transplanting.
General information about the subject — on the page Maturity group.
Varieties of 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.
Fairly
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Estiada
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
5 records
Dumka
ActiveLactuca sativa L. · Lettuce
WASILEWSKA IRENA
Diurnas
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Cordoba
Protection expiredLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
NL
5 records
Clavelina
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Claribel
ActiveLactuca sativa L. · Lettuce
BEJO ZADEN
NL
7 records
Claremont
ActiveLactuca sativa L. · Lettuce
A L TOZER LTD
NL
3 records
Castillon
Protection expiredLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
ES
FR
4 records
Caledonas
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Boreale
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
HR
4 records
Bloomberg
ActiveLactuca sativa L. · Lettuce
Bejo Zaden B.V.
NL
3 records
Blondeos
ActiveLactuca sativa L. · Lettuce
Victor Segura
NL
4 records
Bionda ricciolina
ActiveLactuca sativa L. · Lettuce
Sativa coop (IT)
IT
SI
3 records
Bethal
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
5 records
Baronet
TerminatedLactuca sativa L. · Lettuce
GLASSHOUSE CROPS RESEARCH
NL
4 records
Bamako
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Aveleda
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Athmos
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Asaf
ActiveLactuca sativa L. · Lettuce
Nir Uri, Amos
RO
3 records
Ardillion
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Appia
ActiveLactuca sativa L. · Lettuce
CLAUSE, S.A.
ES
FR
4 records
Apache
TerminatedLactuca sativa L. · Lettuce
Royal Sluis Vegetables BV (NL)
FR
NL
4 records