Tanakan
Application submittedLactuca 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.
Iratxe
ActiveLactuca sativa L. · Lettuce
RAMIRO ARNEDO, S.A.
ES
2 records
Blonde lente à monter 2
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
2 records
Veladero
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
5 records
Victorhugo
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Mbriana
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Chardonita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Chantilly
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Celistra
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Hajo
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
SV8189LA
TerminatedLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
NL
3 records
Ariel
ActiveLactuca sativa L. · Lettuce
Verisem Italia Srl
NL
2 records
Lucior
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Xanstart
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Stage Coach
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
2 records
Verdita
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Godzilla
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Cersa
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Zicatela
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Toya
ActiveLactuca sativa L. · Lettuce
ReinSaat KG
AT
2 records
Gayarda
ActiveLactuca sativa L. · Lettuce
LA SEMIORTO SEMENTI SRL
IT
2 records
Elodian
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
7 records
Królowa Lata
ActiveLactuca sativa L. · Lettuce
PRZEDSIEBIORSTWO NASIENNICTWA
PL
2 records
Gatsbi
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records