Betanto
TerminatedLactuca sativa L. · Lettuce
NUNZA B.V.
NL
5 records
Cultivation
Greenhouse Lettuce
Lactuca sativa L.
Growing lettuce in a protected environment requires strict control of salinity, pH levels, and a specific temperature regime, which is significantly lower than that of tomatoes or cucumbers.
In the reference 755 varieties crop Lettuce, where this is mentioned in the description.
Lettuce is extremely sensitive to soil salinity, responding to it with the development of marginal leaf burn. To prevent manganese toxicity, it is necessary to maintain a pH level of 6.5, which converts micronutrients into a poorly soluble form. In hydroponic cultivation, the ebb and flow method is more effective than the nutrient film technique, as it contributes to an increase in biomass and dry matter content.
Unlike thermophilic vegetable crops, lettuce requires a temperature maintained at 18–20 °C for growth and 12–14 °C for head formation. Disruptions to the microclimate and high temperatures in greenhouses during the summer period trigger premature bolting, which reduces the commercial quality of the produce.
General information about the subject — on the page Protected cultivation.
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.
Bonarda
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Manolis
ActiveLactuca sativa L. · Lettuce
Bejo Zaden B.V.
NL
7 records
Romai
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
8 records
Favola
TerminatedLactuca sativa L. · Lettuce
SYNGENTA SEEDS B.V.
ES
NL
8 records
Dragone
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
6 records
Rafael
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Maximus
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Extemp
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Novice
ActiveLactuca sativa L. · Lettuce
BEJO ZADEN
NL
7 records
SV3035LF
ActiveLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
NL
5 records
Rumina
ActiveLactuca sativa L. · Lettuce
SLUIS & GROOT SEED B.V.
ES
NL
5 records
Hamlin
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Pantlika
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds, NL
NL
6 records
Mezquite
ActiveLactuca sativa L. · Lettuce
Johannes Simon Petrus Nannes.
NL
7 records
Dunand
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Teramo
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan, NL
NL
8 records
Campania
ActiveLactuca sativa L. · Lettuce
Enza Zaden (NL)
NL
SI
4 records
Lusia
ActiveLactuca sativa L. · Lettuce
Clause Semences SA (FR)
FR
IT
5 records
Haflex
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Nordice
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
9 records
Mafalda
ActiveLactuca sativa L. · Lettuce
Panora s.p.a.
NL
7 records
Xiomara
ActiveLactuca sativa L. · Lettuce
NANNES JEROEN
NL
8 records
Danubia
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
FR
NL
7 records