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. (Red Cabbage Group) · Red cabbage
Hazera Seeds B.V.
Raphanus sativus L. var. sativus · Radish
Ger Beemsterboer
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Trifolium repens L. · White clover
STAZIONE DI SELEZIONE DELLE PIANTE
Lolium perenne L. · Perennial ryegrass
DLF Seeds A-S, DK
Raphanus sativus L. var. sativus · Radish
VAN DEN BURG JOSKE
Festuca rubra L. · Red fescue
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
R 2n (FR)
Agrostis capillaris L. · Common bent
HBLFA Raumberg-Gumpenstein
Festuca rubra L. · Red fescue
DEUTSCHE SAATVEREDELUNG AG
Corylus avellana L. · Common hazel
Rolf de Vries
Prunus domestica L. · European plum
Chrysanthemum L. · Chrysanthemum
VAN DER JAGT MARTINUS
Malus domestica (Suckow) Borkh. · Apple
Prof. Dr. Christa Fischer
Brassica oleracea L. (White Cabbage Group) · White cabbage
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum tuberosum L. · Potato
Lars Naested
Solanum lycopersicum L. · Tomato
Mike Kuehn
Festuca rubra L. · Red fescue
DLF SEEDS A/S
Capsicum annuum L. · Bell pepper
Szell Levente
Solanum melongena L. · Eggplant
Vilmorin SA (FR)
Vicia sativa L. · Common vetch
Vincent Beguier
Festuca arundinacea Schreb. · Tall fescue
Pickseed USA, Inc. & Rutgers, The State University of New Jersey
Phleum pratense L. · Timothy grass
Advanta Seeds B.V.