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.
Cucurbita pepo L. · Field pumpkin
S&G SEEDS B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
MAURIZIO BACCHI
Brassica oleracea L. (White Cabbage Group) · White cabbage
Willem van Haerke
Raphanus sativus L. var. oleiformis Pers. · Oil radish
VANDINTER RESEARCH B.V.
Brassica napus var. napus · Rapeseed
Pioneer Overseas Corporation US (USA)
Solanum lycopersicum L. · Tomato
Bejo Zaden B.V.
Cucumis sativus L. · Cucumber
Wing Seed
Poa pratensis L. · Kentucky bluegrass
SAATZUCHT STEINACH GmbH & Co KG (DE)
Festuca arundinacea Schreb. · Tall fescue
Pure Seed Testing Inc (US)
Lolium perenne L. · Perennial ryegrass
GIE de Recherche Europeenne sur les Gazons (FR)
Pisum sativum L. · Pea
SELGEN A.S
Vicia sativa L. · Common vetch
ARSA
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Khuan Tsastro
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
DE LANGEN FRANK
Agrostis stolonifera L. · Creeping bentgrass
Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey
Brassica carinata A. Braun · Ethiopian mustard
Nuseed Global Innovation Ltd.
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Jan Draaistra
Solanum melongena L. · Eggplant
UNITED GENETICS SEEDS CO
Sinapis alba L. · White mustard
VANDINTER RESEARCH B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Sakata Seed Corporation, JP
Valerianella locusta (L.) Laterr. · Corn salad
Nunhems Netherlands B.V.
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
MORAVOSEED
Daucus carota L. · Carrot
MORAVOSEED
Rosa L. · Rose
Meilland, Alain A.|Antibes, France