Maryna
ActiveLactuca sativa L. var. capitata L. · Head lettuce
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
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. var. capitata L. · Head lettuce
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Lactuca sativa L. var. capitata L. · Head lettuce
TORSEED - Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa S.A.
Lactuca sativa L. var. capitata L. · Head lettuce
TORSEED - Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa S.A.
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Zea mays L. · Maize
Ken Christensen
Allium cepa L. · Onion
MAURIZIO BACCHI
Allium cepa L. · Onion
Petr Klapste
Cucurbita pepo L. · Field pumpkin
Enza Zaden Beheer B.V.
Allium cepa L. · Onion
CORA SEEDS S.R.L
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Hofstede
Allium porrum L. · Leek
Pieterpikzonen B.V.
Capsicum annuum L. · Bell pepper
Pieterpik B.V.
Cucurbita pepo L. · Field pumpkin
Petoseed, US
Rosa L. · Rose
INTERPLANT BV (NL)
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Cucumis sativus L. · Cucumber
SYNGENTA SEEDS B.V.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Hofstede
Raphanus sativus L. · Radish
BEJO ZADEN
Solanum lycopersicum L. · Tomato
Tezier SA (FR)
Capsicum annuum L. · Bell pepper
Asgrow Seed Company (US)
Raphanus sativus L. · Radish
Quedlinburg
Lactuca sativa L. var. capitata L. · Head lettuce
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Dianthus caryophyllus L. · Carnation
van Zanten Plants b.v
Cucumis melo L. · Melon
SEMINIS INC