Cultivation
Winter covering is an agrotechnical practice for plant protection, indicating a variety's insufficient adaptation to the local climate. The necessity of this procedure shifts crop cultivation into an intensive and labor-intensive format, requiring regular expenditures and strict adherence to work s…
Mentioned in descriptions 14 029 varieties reference book.
The need for winter covering manifests as mandatory annual plant preparation, including mulching, hilling, bending down shoots, or using protective frames and materials. This is a variety marker indicating its inability to independently withstand local climatic conditions, which compels the agronomist to create an artificial environment for protection against frost damage.
Protection effectiveness directly depends on adhering to timelines and the quality of materials used. Early covering at high temperatures can provoke rotting or the development of fungal diseases, while late covering will not protect against early frosts. The success of the operation is also determined by the general condition of the plants: weakened specimens or an excess of nitrogen nutrition in autumn increase the risk of death even when protective structures are present.
Assessing the feasibility of covering relies on economic profitability and agrotechnical capabilities. With the aging of woody and shrub crops, the complexity of installing structures increases, which reduces the scalability of plantings. When choosing a variety, it is recommended to consider frost resistance data and prioritize regionalized winter-hardy alternatives that do not require manual intervention during the winter period.
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.
Cucurbita pepo L. · Field pumpkin
LA SEMIORTO SEMENTI SRL
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Ralf Kuijpers
Solanum lycopersicum L. · Tomato
Ballardini Massimiliano
Lactuca sativa L. · Lettuce
SAIS SPA- Cesena (IT)
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Service Officiel de Controle (FR)
Daucus carota L. · Carrot
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Cucumis sativus L. · Cucumber
Sativa Seeds & Service Srl.(IT)
Cucumis melo L. · Melon
Zeraim Gedera Ltd (IL)
Cucumis melo L. · Melon
SEMILLAS FITO, S.A.
Beta vulgaris Leaf Beet Group · Swiss chard
Les Graines Caillard Sa (FR)
Solanum lycopersicum L. · Tomato
Paul Degreef
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan (NL)
Agrostis stolonifera L. · Creeping bentgrass
JACKLIN SEED BY SIMPLOT
Solanum lycopersicum L. · Tomato
Katarzyna Grabka
Lactuca sativa L. · Lettuce
Graines Gautier SA (FR)
Pyrus communis L. · European pear
Festuca ovina L. · Sheep's fescue
Malopolska Hodowla Roslin Spolka z o.o.
Osteospermum L. · Osteospermum
SOERENSEN CARL| Carl Aksel Kragh Soerensen c/o Gartneriet Petersminde
Prunus persica (L.) Batsch · Peach
Rene Monteux-Caillet (FR)
Zea mays L. subsp. mays (Maize Group) · Maize
M.C.M Raaphorst
Zea mays L. · Maize
PIONEER HI-BRED INT
Cucumis melo L. · Melon
Golden West Seed Co.
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.