Neferin
ActiveLactuca sativa L. · Lettuce
CZ
2 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.
Da taglio a foglia liscia
ActiveLactuca sativa L. · Lettuce
IT
2 records
Ruzika
TerminatedLactuca sativa L. · Lettuce
NL
2 records
Królowa Majowych
ActiveLactuca sativa L. · Lettuce
CZ
2 records
Lusiana
TerminatedLactuca sativa L. · Lettuce
IT
2 records
Karminova
ActiveLactuca sativa L. · Lettuce
CZ
2 records
Alcala
ActiveLactuca sativa L. · Lettuce
NL
3 records
Romana larga verde
ActiveLactuca sativa L. · Lettuce
ES
2 records
Pennlake
ActiveLactuca sativa L. · Lettuce
Jult zimen tzar
ActiveLactuca sativa L. · Lettuce
BG
2 records
Kamenex
ActiveLactuca sativa L. · Lettuce
CZ
2 records
Zlatý rekord
ActiveLactuca sativa L. · Lettuce
CZ
2 records
Grosse brune paresseuse
TerminatedLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Regale
Application submittedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Judita RZ
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan France SARL (FR)
HR
1 record
Bionda lenta a montare 5
TerminatedLactuca sativa L. · Lettuce
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
IT
1 record
Bionda lentissima a montare 2
TerminatedLactuca sativa L. · Lettuce
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
IT
1 record
Biondi
TerminatedLactuca sativa L. · Lettuce
Barb Neubert
DE
2 records
Gotte dorée
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Biondina
ActiveLactuca sativa L. · Lettuce
Bejo Zaden B.V.
NL
1 record
Reine de mai à forcer
TerminatedLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Reine de mai à forcer
TerminatedLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
FRILICE
TerminatedLactuca sativa L. · Lettuce
Royal Sluis Vegetables BV (NL)
FR
1 record
Passe partout
TerminatedLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record