Oakus
ActiveLactuca sativa L. · Lettuce
BEJO ZADEN
NL
5 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.
Lucan
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Cartagonova
ActiveLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
ES
NL
4 records
Multigreen 161
ActiveLactuca sativa L. · Lettuce
Nunhems B.V.
NL
6 records
Merlot
ActiveLactuca sativa L. · Lettuce
MoravoSeed, CZ
CZ
4 records
Multigreen 185
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
7 records
Ilona
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
FR
NL
8 records
Flavita
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
8 records
Thatcher
TerminatedLactuca sativa L. · Lettuce
Nunhems B.V.
NL
7 records
Tango
ActiveLactuca sativa L. · Lettuce
KLIMENKO NIKOLAJ NIKOLAEVICh / MAKSIMOV SERGEJ VASIL'EVICh / HOVRIN ALEKSANDR NIKOLAEVICh
FR
NL
4 records
Crimson
ActiveLactuca sativa L. · Lettuce
MORAVOSEED
CZ
SK
4 records
Damion
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
7 records
Mordore
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records
Scamander
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Gibbard
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Edurne
ActiveLactuca sativa L. · Lettuce
ZAADUNIE B.V.
ES
HR
NL
6 records
Denver
ActiveLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
ES
NL
4 records
Great lakes 659
ActiveLactuca sativa L. · Lettuce
SUNSEEDS GENETICS INC
IT
SI
4 records
Xem
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Nadita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
7 records
Stargo
Application submittedLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
ES
NL
6 records
Galactita
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Redin
ActiveLactuca sativa L. · Lettuce
MORAVOSEED
CZ
SK
4 records
Batraz
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
7 records