Grenadine
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
8 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.
Zoliva
ActiveLactuca sativa L. · Lettuce
NUNZA BV
ES
NL
8 records
Malenita
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
8 records
Solos
ActiveLactuca sativa L. · Lettuce
BEJO ZADEN
NL
10 records
Krystion
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
6 records
Tevion
ActiveLactuca sativa L. · Lettuce
Enza Zaden, NL
NL
11 records
Galatea
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Xapia
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Crackita
ActiveLactuca sativa L. · Lettuce
Syngenta UK Ltd
NL
7 records
Jonction
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Rawley
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Vindicate
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Pamex
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Rosaine
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Roxy
ActiveLactuca sativa L. · Lettuce
ENZA ZADEN
NL
4 records
Kireve
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
6 records
Firstkin
ActiveLactuca sativa L. · Lettuce
NUNHEMS
NL
7 records
Rockita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records
Yecla
ActiveLactuca sativa L. · Lettuce
Enza Zaden, NL
NL
6 records
Yves
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Funfix
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
6 records
Azulita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
7 records
Traper
ActiveLactuca sativa L. · Lettuce
MORAVOSEED
CZ
SK
4 records
Vidotex
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records