Kriska
ActiveLactuca sativa L. · Lettuce
ISI SEMENTI SPA
NL
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.
Rosalyn
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Capestar
ActiveLactuca sativa L. · Lettuce
Nunhems B.V., 6083 AB Nunhem
NL
5 records
Ashbrook
ActiveLactuca sativa L. · Lettuce
A L TOZER LTD
NL
5 records
Fortessa
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
NL
4 records
Bellafore
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds BV, Netherlands
NL
7 records
Youppie
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Corentine
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Norden
ActiveLactuca sativa L. · Lettuce
De Enkhuizer Zaadhandel BV, NL-1600 AA Enkhuizen
NL
4 records
Buda
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Volare
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Corsica
Application submittedLactuca sativa L. · Lettuce
Royal Sluis B.V.
NL
4 records
Voulski
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Rodolfo
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V. / Enza Zaden Beheer B.V.
NL
6 records
Neherai
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Jokary
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Vestia
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Klimt
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Coulthard
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
8 records
Kistro
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
5 records
Estrosa
ActiveLactuca sativa L. · Lettuce
ENZA ZADEN BEHEER B.V., NL
NL
3 records
Adicamp
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V. / Enza Zaden Beheer B.V.
NL
6 records
Bellagon
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Byzantine
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
4 records