Eiffel
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
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.
SaturdaÖ
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
SALAVE
Application submittedLactuca sativa L. · Lettuce
ZETA SEEDS S.L.
ES
1 record
OTILIA
WithdrawnLactuca sativa L. · Lettuce
HAZERA (1939)
ES
1 record
Lactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Multired 7
TerminatedLactuca sativa L. · Lettuce
Nunhems B.V.
NL
2 records
RONALY
ActiveLactuca sativa L. · Lettuce
HAZERA GENETICS
ES
1 record
Freckles
TerminatedLactuca sativa L. · Lettuce
Seeds by Design (US)
FR
1 record
Platine
TerminatedLactuca sativa L. · Lettuce
Tezier SA (FR)
FR
2 records
Precade
TerminatedLactuca sativa L. · Lettuce
Clause Semences SA (FR)
FR
1 record
KRISHNA
TerminatedLactuca sativa L. · Lettuce
HAZERA (1939)
ES
1 record
Kwiek
TerminatedLactuca sativa L. · Lettuce
CW. PANNEVIS BV (NL)
FR
1 record
Zanori
Application submittedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Aréna
ActiveLactuca sativa L. · Lettuce
Vilmorin SA (FR)
FR
1 record
Blonde lente à monter
TerminatedLactuca sativa L. · Lettuce
Service Officiel de Controle (FR)
FR
1 record
Segura
Application submittedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Walwin
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Bourguignonne
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Furore
WithdrawnLactuca sativa L. · Lettuce
Syngenta Participations AG
NL
2 records
TAVASCAN
Application submittedLactuca sativa L. · Lettuce
RAMIRO ARNEDO, S.A.
ES
1 record
LOCARNO RZ (85-81 RZ)
WithdrawnLactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
ES
1 record
ESTIBALIZ
WithdrawnLactuca sativa L. · Lettuce
RAMIRO ARNEDO, S.A.
ES
1 record
Panacola
Application submittedLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Raffaella
ActiveLactuca sativa L. · Lettuce
Panora s.p.a.
NL
1 record