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.
Brassica oleracea L. (White Cabbage Group) · White cabbage
HAZERA SEEDS B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Bejo Zaden BV (NL)
Lolium perenne L. · Perennial ryegrass
Nilsson, Bengt
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Cora Seeds SRL, I
Cucurbita pepo L. · Field pumpkin
NIKOLAS MATTHIEU
Glycine max (L.) Merr. · Soybean
MURESANU EUGENSAMARTINEAN ADRIANA
Solanum melongena L. · Eggplant
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Kees Konst
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
HM.CLAUSE
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Carneau Freres SA (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Nickerson Zwaan B.V. (NL)
Petunia x hybrida hort. ex E. Vilm. · Garden petunia
Sakazaki Ushio
Vitis L. · Grapevine
GUIDO CIPRIANI/GABRIELE DI GASPERO/MICHELE MORGANTE/ENRICO PETERLUNGER/RAFFAELE TESTOLIN/ SIMONE DIEGO CASTELLARIN
Zea mays L. · Maize
Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.
Capsicum annuum L. · Bell pepper
SYNGENTA SEEDS B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds B.V.
Sinapis alba L. · White mustard
VANDINTER SEMO B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
SC AGROSEL SRL, RO
Festuca rubra L. · Red fescue
SAATZUCHT| Saatzucht Steinach GmbH & Co KG
Lilium L. · Lily
Vletter & Den Haan Beheer B.V
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Sakata Vegetables Europe S.A.S
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.