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.
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV (NL)
Festuca rubra L. · Red fescue
Barenbrug Holland BV (NL)
Linum usitatissimum L. · Common flax
P.H PETERSEN
Cucumis sativus L. · Cucumber
Bejo Zaden B.V.
Sinapis alba L. · White mustard
SEMENCES DE FRANCE
Cichorium endivia L. · Endive
Domaine Public (FR)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
TOMOAKI FUNABIKI
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Lammers
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Jan Draaistra
Secale cereale L. · Rye
PHP PETERSEN
Secale cereale L. · Rye
Petrus Johannes Lammers
Capsicum annuum L. · Bell pepper
Vilmorin SA (FR)
Festuca rubra L. · Red fescue
BARENBRUG UK LTD
Vaccinium corymbosum L. · Highbush blueberry
University of Florida
Vicia sativa L. · Common vetch
Vincent Beguier
Phaseolus vulgaris L. · Common bean
Nunhems B.V.
Festuca rubra L. · Red fescue
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Harris Moran Seed Company (USA) (US)
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
SAKATA SEED AMERICA INC US
Festuca arundinacea Schreb. · Tall fescue
RAGT 2N S.A.S
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Remi Leviel
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Domaine Public (FR)