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.
Hordeum vulgare L. · Barley
RAGT 2n
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Remi Lavieil
Lilium L. · Lily
Vletter & Den Haan Beheer B.V
Lolium perenne L. · Perennial ryegrass
MCCARTHY| Michael J. McCarthy
Capsicum annuum L. · Bell pepper
Syngenta Crop Protection AG
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Triticum aestivum L. · Bread wheat
SENOVA LTD
Trifolium alexandrinum L. · Egyptian clover
P.H.PETERSEN SAATZUCHT LUNDSGAARD
Prunus persica (L.) Batsch · Peach
Norman Glen Bradford (US)/Lowell Glen Bradford (US)
Prunus persica (L.) Batsch · Peach
Verbena L. · Vervain
TAMURA| Yuij Tamura c/o Suntory Ltd., Flower Div. / SAKAZAKI| Ushio Sakazaki c/o Suntory Ltd., Flower Div. / TACHIBANA| Ryuich Tachibana c/o Suntory Ltd.
Cucumis sativus L. · Cucumber
SPOJNIA HOWDOWLA I
Secale cereale L. · Rye
LOCHOW| KWS LOCHOW GMBH
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Raphanus sativus L. var. oleiformis Pers. · Oil radish
KWS SAAT SE and CO KGAA
Rosa L. · Rose
Poulsen Roser A/S
Brassica oleracea L. (White Cabbage Group) · White cabbage
VAN DER PLOEG SJAAK
Rosa L. · Rose
Poulsen Roser A/S
Agrostis stolonifera L. · Creeping bentgrass
TEE-2-GREEN| Tee-2-Green Corporation
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S, 4000 Roskilde
Lolium perenne L. · Perennial ryegrass
Yan Lipins`ki, Yeshi Radvans`ki, Zihmunt Fras, Hrahyina Vaida-Slipers`ka, Cheslav Novits`ki,
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Lolium perenne L. · Perennial ryegrass
DLF-Trifolium A/S