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.
x Triticosecale Wittm. ex A. Camus · Triticale
Saaten Union Recherche (FR)
Cichorium endivia L. · Endive
Enza Zaden Beheer B.V.
Triticum aestivum L. · Bread wheat
POLJOPRIVREDNI INSTITUT
Solanum lycopersicum L. · Tomato
UNITED GENETICS SEEDS CO
Brassica oleracea L. (Cauliflower Group) · Cauliflower
MONSANTO VEGETABLE IP MANAGEMENT B.V.
Solanum lycopersicum L. · Tomato
Blumen Group, I
Cucurbita pepo L. · Field pumpkin
Syngenta Seeds B.V.
Phaseolus vulgaris L. · Common bean
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Vicia sativa L. · Common vetch
Instituto Nacional de Investigação Agrária (INIA) -Portugal-, Instituto Nacional de Recursos Biológicos (INRB) -Portugal-
Brassica oleracea L. (Broccoli Group) · Broccoli
BEJO ZADEN
Solanum melongena L. · Eggplant
SEMILLAS FITO, S.A.
Festuca arundinacea Schreb. · Tall fescue
Barenbrug Holland BV (NL)
Capsicum annuum L. · Bell pepper
RAMIRO ARNEDO, S.A.
Sinapis alba L. · White mustard
PRZEDSIęBIORSTWO NASIENNE "ROLNAS" SP. Z O.O.
Cydonia oblonga Mill. · Quince
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Festuca arundinacea Schreb. · Tall fescue
Barenbrug Holland BV (NL)
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Cucurbita pepo L. · Field pumpkin
Magnum Seeds, USA
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV (NL)
Cucumis melo L. · Melon
HM.Clause S.A.S.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Festuca arundinacea Schreb. · Tall fescue
DLF Seeds A-S, DK
Lolium multiflorum Lam. · Italian ryegrass
University of Florida