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 multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
DLF Seeds A-S, DK
Rubus idaeus L. · Red raspberry
Cucurbita pepo L. · Field pumpkin
SEMILLAS FITO, S.A.
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Avena strigosa Schreb. · Black oat
Jouffray-Drillaud SA (FR)
Allium cepa L. · Onion
Willem P. Van haecke
Brassica oleracea L. (White Cabbage Group) · White cabbage
Hazera Seeds B.V.
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Festuca rubra L. · Red fescue
RAGT 2N / RAGT 2N
Beta vulgaris Garden Beet Group · Garden beet
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
Cucumis melo L. · Melon
CLAUSE, S.A.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan (NL)
Malus Mill. · Apple
DELBARD GEORGES| Georges Delbard
Lactuca sativa L. · Lettuce
Enza Zaden Beheer
Solanum lycopersicum L. · Tomato
Helena Valentovicova
Raphanus sativus L. var. sativus · Radish
Hazera Seeds B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Bayer Holland B.V. (NL)
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Brassica oleracea L. (White Cabbage Group) · White cabbage
Twan Groot
Brassica oleracea L. (White Cabbage Group) · White cabbage
Mikado Kyowa Seeds Co. Ltd. (JP)
Avena sativa L. · Oat
INAKTIV KWS LOCHOW GMBH Herrn Dr. Erhard Ebmeyer
Zea mays L. · Maize
KWS SAAT SE and CO KGAA
Prunus persica (L.) Batsch · Peach
MR.CHAPUS
Solanum lycopersicum L. · Tomato
HM.Clause S.A.S.