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ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Cultivation
Cultivation in open field conditions requires the selection of varieties adapted to uncontrolled environmental factors and climatic fluctuations. Such varieties are characterized by genetic plasticity, stress tolerance, and a vegetation period consistent with local weather conditions.
Mentioned in descriptions 28 305 varieties reference book.
Varieties for open field cultivation are bred for adaptation to uncontrolled environmental conditions, unlike greenhouse varieties. Their key feature is the ability to provide a stable yield under fluctuations in temperature, humidity, and light intensity, as well as increased resistance to regional disease pressure.
The choice of variety for open field cultivation depends on the phenological characteristics of the plant, where the life cycle must fit within the frost-free period of a specific location. Morphology is an important factor: preference is often given to determinate forms, resistant to wind stress, and the crop's ability to mature uniformly to facilitate harvesting.
Cultivation technology in open field conditions requires taking into account the biological characteristics of the variety, such as the need for insect pollination. Varieties for field conditions possess higher plasticity, which allows them to maintain yield under less intensive care and nutrient management, while greenhouse counterparts often demonstrate reduced productivity and susceptibility to stress under such conditions.
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
Enza Zaden Beheer B.V.
Capsicum annuum L. · Bell pepper
Szell Levente
Cucurbita pepo L. · Field pumpkin
NIKOLAS MATTHIEU
Lactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
Cucumis melo L. · Melon
Nunhems, NL
Diplotaxis tenuifolia (L.) DC. · Perennial wall-rocket
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum melongena L. · Eggplant
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Kees Konst
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Allium porrum L. · Leek
Domaine Public (FR)
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Rijk Zwaan Zaadteelt en Zaadhandel B.V. (NL)
Cucumis sativus L. · Cucumber
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Yuksel Tohum, TR
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Capsicum annuum L. · Bell pepper
Zoldesegtermesztesi Kutato Intezet RT (HU)
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
UNITED GENETICS SEEDS CO
Solanum lycopersicum L. · Tomato
SEMO a.s
Solanum lycopersicum L. · Tomato
Vittorio Stravatto
Brassica oleracea L. (White Cabbage Group) · White cabbage
Nickerson Zwaan B.V. (NL)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Jan Draaistra
Brassica oleracea L. (White Cabbage Group) · White cabbage
HAZERA SEEDS B.V.