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ActiveCitrus x paradisi Macfad. · Grapefruit
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.
Citrus x paradisi Macfad. · Grapefruit
Lactuca sativa L. · Lettuce
Magali Lemont
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Phaseolus vulgaris L. · Common bean
Gebroeders Bakker Zaadteelt en Zaadhandel B.V.
Cucumis sativus L. · Cucumber
Remzi Dogan, Nunhems B.V.
Cucumis sativus L. · Cucumber
ROBERT SWINKELS
Rubus idaeus L. · Red raspberry
NIELS ARTS
Bouvardia Salisb. · Bouvardia
JOHN M.F.DE JOHN
Solanum lycopersicum L. · Tomato
Pascal Wanten
Cucumis sativus L. · Cucumber
Rijk Zwaan, NL
Solanum lycopersicum L. · Tomato
Nunhems Netherlands BV
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Steven D. Nelson^^^Michael D. Nelson^^^Stephen M. Ackerman
Cucumis sativus L. · Cucumber
BEJO ZADEN
Rosa L. · Rose
Pouw, A.A.|De Kwakel, Netherlands
Cucumis sativus L. · Cucumber
ENZA ZADEN
Capsicum annuum L. · Bell pepper
OOO 'AGROFIRMA PARTNER'
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Nunhems, NL
Lactuca sativa L. · Lettuce
NUNHEMS
Lactuca sativa L. · Lettuce
Nunhems B.V.
Lactuca sativa L. · Lettuce
NUNHEMS
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.