Mosslanding
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Cultivation
Field-grown lettuce
Lactuca sativa L.
Growing lettuce in open fields requires the selection of varieties resistant to bolting under long-day conditions and the management of downy mildew. The crop is characterized by high earliness, which allows for succession planting, and the ability to tolerate frosts down to -2 °C.
In the reference 1 060 varieties crop Lettuce, where this is mentioned in the description.
When cultivating lettuce in open fields, sensitivity to photoperiodism and temperature is a critical factor. Summer varieties must possess bolting resistance, as excessive light and heat trigger premature transition to flowering. The plant's shallow root system requires consistent soil moisture maintenance, and non-woven row covers are often used to protect against heat stress.
Open-field technology involves using lettuce as an intercrop, which is feasible due to its short growing period of 25–40 days. Soil requirements are limited to a pH range of 6.0–6.8, and the quality of seedbed preparation must exclude large clods due to the small size of the seeds. Cold hardiness allows for winter and early spring sowing, while considering the necessity of protection against downy mildew, caused by the pathogen Bremia lactucae.
General information about the subject — on the page Open field.
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.
Gloire du Dauphiné
ActiveLactuca sativa L. · Lettuce
BOURGET ET SANVOISIN (FR)/Domaine Public (FR)
FR
2 records
Trocadéro
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
2 records
Wazari
TerminatedLactuca sativa L. · Lettuce
Clause Semences SA (FR)
FR
3 records
Quice
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Or Anton
ActiveLactuca sativa L. · Lettuce
ORTORICERCA SRL
IT
2 records
Burgandy
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
WINTER DENSITY
ActiveLactuca sativa L. · Lettuce
SEMINIS VEGETABLE SEED IB
ES
2 records
Xoana
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Amboise
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Murielle
ActiveLactuca sativa L. · Lettuce
ReinSaat KG
AT
2 records
Cospenza
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Siplia
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
3 records
Saralyn
WithdrawnLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Napelo
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Joliac
ActiveLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
NL
3 records
Vicary
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Annaba
Application submittedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Clotilde
ActiveLactuca sativa L. · Lettuce
Panora s.p.a.
NL
3 records
Ibery
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Kobuka
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Cevedale
ActiveLactuca sativa L. · Lettuce
BLUMEN GROUP S.P.A
IT
2 records
Lactuca sativa L. · Lettuce
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
IT
2 records
Gazet
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records