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.
Cucumis sativus L. · Cucumber
SEMILLAS FITO, S.A.
Cucumis melo L. · Melon
Sakata Seed Corporation, JP
Solanum lycopersicum L. · Tomato
Kees Konst
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Nunhems B.V.
Zea mays L. · Maize
Saaten-Union
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Eran Yossov
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Meinardus P.Boon
Lactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Bromus inermis Leyss. · Smooth brome
TAGRO Červený Dvůr, spol. s r.o. (CZ)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Biogya srl
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Allium cepa L. var. cepa · Onion
Takii & Company LTD (JP)
Rosa L. · Rose
Hans-Juergen Evers
Brassica oleracea L. (White Cabbage Group) · White cabbage
Mikado Kyowa Seed Co. Ltd. (JP)
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Gerard Balder
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Enza Zaden Bikhir B.V.
Cichorium intybus L. (Industrial Chicory Group) · Chicory
ILVO Plant/Chicoline a division of Cosucra Groupe Warcoing
Solanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
Raphanus sativus L. var. sativus · Radish
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Lactuca sativa L. · Lettuce
CONSORZIO SEMENCOOP S. COOP.A.R.L.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Enza Zaden Beheer B.V.
Allium cepa L. · Onion
John Constable