Corsica
Application submittedLactuca sativa L. · Lettuce
Royal Sluis B.V.
NL
4 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.
Voulski
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Duna
ActiveLactuca sativa L. · Lettuce
OLTER SRL
IT
4 records
Excentric
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Rodolfo
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V. / Enza Zaden Beheer B.V.
NL
6 records
Jokary
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Maureen
ActiveLactuca sativa L. · Lettuce
ENZA ZADEN
NL
3 records
Klimt
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Lazarita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records
Ice Circle II
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records
Coulthard
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Spykita
Application submittedLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Kistro
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Rios
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Balmoral
ActiveLactuca sativa L. · Lettuce
Horticulture Research International (GB)/Clause Semences SA (FR)
FR
3 records
Zoilo
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Crestana
Protection expiredLactuca sativa L. · Lettuce
Les Graines Caillard Sa (FR)
ES
FR
NL
5 records
Glassica
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
5 records
Estrosa
ActiveLactuca sativa L. · Lettuce
ENZA ZADEN BEHEER B.V., NL
NL
3 records
Pitcher
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Adicamp
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V. / Enza Zaden Beheer B.V.
NL
6 records
Gloriole
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Bellagon
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Byzantine
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
4 records