Soupirai
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Cultivation
Protected cultivation involves the use of specialized varieties and hybrids adapted to the specific microclimate of greenhouses, hotbeds, and controlled-environment agriculture systems.
Mentioned in descriptions 24 262 varieties reference book.
Protected cultivation comprises a system of structures ranging from simple film shelters to high-tech greenhouses with automated climate control. Plants in such conditions develop under different levels of lighting, humidity, and temperature regimes, as well as in limited root zone volumes, which requires the selection of genetically adapted material, predominantly F1 hybrids.
The choice of a variety for closed environments depends on the crop's ability to develop fully under artificial lighting, its growth type, and compatibility with cultivation technologies, including substrate-based systems. Variety assessment is based on morphological traits, productivity, and the conformity of fruit characteristics to requirements for marketability, keeping quality, and transportability.
The resistance and high productivity of greenhouse varieties are driven by breeding for immunity to specific pathogens, such as powdery mildew, various types of wilts, viruses, and bacterial infections. Additional critical traits include parthenocarpy, which ensures fruit set without pollination, and the ability to control the balance between generative development and sugar accumulation.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Capsicum annuum L. · Bell pepper
De Bolster B.V.
Lactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
Capsicum annuum L. · Bell pepper
De Bolster B.V.
Cucurbita pepo L. · Field pumpkin
Clause Tezier, FR
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
Estonian Crop Research Institute
Capsicum annuum L. · Bell pepper
AKIRA SEEDS S.L.
Cucumis sativus L. · Cucumber
SEMILLAS FITO, S.A.
Capsicum annuum L. · Bell pepper
MERIDIEM SEEDS S.L.
Capsicum annuum L. · Bell pepper
HAZERA GENETICS
Solanum lycopersicum L. · Tomato
Vilmorin-Mikado S.A.S.
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Lactuca sativa L. · Lettuce
SEMILLAS BATLLE, S.A.
Solanum melongena L. · Eggplant
Griffaton S.A. (FR)
Gerbera L. · Gerbera
FLORIST HOLLAND B.V.
Allium cepa L. var. cepa · Onion
Panora s.p.a.
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Cucurbita pepo L. · Field pumpkin
HM.Clause S.A.S.
Solanum lycopersicum L. · Tomato
Bejo Zaden B.V.
Capsicum annuum L. · Bell pepper
Yordanka Tosheva
Solanum lycopersicum L. · Tomato
OOO 'AGROFIRMA 'SEDEK'
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Cucurbita pepo L. · Field pumpkin
Clause (FR)