Tintamar
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 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.
Amaze
TerminatedLactuca sativa L. · Lettuce
VILMORIN-MIKADO USA
Guenola
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
3 records
Javelo
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
3 records
Segesta
ActiveLactuca sativa L. · Lettuce
BLUMEN GROUP S.P.A
IT
2 records
Marady
TerminatedLactuca sativa L. · Lettuce
De Enkhuizer Zaadhandel BV (NL)
FR
2 records
Fetar
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Sevenole
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Caneira
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
SVLA5166
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
3 records
Solara
ActiveLactuca sativa L. · Lettuce
SEMILLAS BATLLE, S.A.
ES
3 records
Astabella
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
3 records
Otis
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Iceberg 4
ActiveLactuca sativa L. · Lettuce
GEBR BAKKER ZAADTEELT
Nolwen
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Lagollo
ActiveLactuca sativa L. · Lettuce
Nunhems B.V.
NL
4 records
Bivouac
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
3 records
Jankowski
Application submittedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Largo
Protection expiredLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
NL
3 records
Crispita
WithdrawnLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
3 records
Massimina
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
3 records
Annapolis
TerminatedLactuca sativa L. · Lettuce
LARRY D. KNERR
NL
3 records
Annare
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Incanto
ActiveLactuca sativa L. · Lettuce
BLUMEN GROUP S.P.A
IT
2 records