Coriole
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
10 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.
Kavalo
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
8 records
Almaral
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
6 records
Skindel
ActiveLactuca sativa L. · Lettuce
Nunhems B.V.
NL
7 records
Botiola
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Yelita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
8 records
Lento
ActiveLactuca sativa L. · Lettuce
MORAVOSEED
CZ
SK
4 records
Spectation
ActiveLactuca sativa L. · Lettuce
Bejo Zaden, NL
NL
5 records
Vaidosa
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
7 records
Waikiki
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
6 records
Bruma
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
New Red Fire
ActiveLactuca sativa L. · Lettuce
TAKII and CO LTD
NL
4 records
Carnelian
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
7 records
Pascal
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Gabita
ActiveLactuca sativa L. · Lettuce
Yes applicant details in question 1, Rijk Zwaan Lettuce breeding department
NL
7 records
Tearflash
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
7 records
Jiska
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
ES
NL
5 records
Wismar
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
6 records
Aleppo
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Battlestar
ActiveLactuca sativa L. · Lettuce
NANNES JEROEN
NL
8 records
Versaï
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Jade
ActiveLactuca sativa L. · Lettuce
Sakata Vegetables Europe S.A.S
FR
NL
6 records
Janique
ActiveLactuca sativa L. · Lettuce
Nunhems B.V.
NL
6 records
Leny
ActiveLactuca sativa L. · Lettuce
Nunza BV (NL)
FR
NL
6 records