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 melo L. · Melon
SAS HM Clause (FR)
Rhododendron L. · Azalea
HOLZ PETER-HANS
Zea mays L. subsp. mays (Maize Group) · Maize
LIMAGRAIN EUROPE
Capsicum annuum L. · Bell pepper
Seminis Vegetables (NL)
Sorghum bicolor (L.) Moench · Sorghum
MMR RESEARCH
Allium cepa L. · Onion
Paul Degreef
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V.
Allium cepa L. · Onion
SYNGENTA SEEDS B.V.
Daucus carota L. · Carrot
TORSID
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Allium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Raphanus sativus L. · Radish
PRZEDSIEBIORSTWO NASIENNICTWA OGRODNICZEGO I SZKOLKARSTWA
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Herbert Korjus 70%, Rene Aavola 30%
Solanum lycopersicum L. var. lycopersicum · Tomato
ISI SEMENTI SPA
Cucumis sativus L. · Cucumber
SPÓJNIA Hodowla i Nasiennictwo Ogrodnicze sp. z o.o.
Capsicum annuum L. · Bell pepper
MERIDIEM SEEDS S.L.
Phaseolus vulgaris L. · Common bean
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Clematis L. · Clematis
Szczepan Marczyński
Cucumis melo L. · Melon
Nunhems B.V.
Cucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum melongena L. · Eggplant
Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Asparagus officinalis L. · Asparagus
Südwestdeutsche Saatzucht GmbH&Co.KG