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
DEUTSCHE SAATVEREDELUNG AG
Malus domestica (Suckow) Borkh. · Apple
VECHER WILLIAM (US)
Lolium multiflorum Lam. · Italian ryegrass
ISTITUTO DI COLTIVAZIONE E ACCLIMATAZIONE DELLE PIANTE DI RADZIKOW
Triticum aestivum L. · Bread wheat
KWS Lochow
Asparagus officinalis L. · Asparagus
Petrus Josephus Maria Lavrijsen
Malus domestica (Suckow) Borkh. · Apple
VANDEPOEL-BEETEN
Zea mays L. · Maize
GOLDEN HARVEST/J.C. ROBINSON
Prunus domestica L. · European plum
SVERIGES LANTBRUKSUNIVERSITÄTET
Anigozanthos Labill. · Kangaroo Paw
WORRALL| Ross James Worrall c/o N.S.W. Agriculture
Malus domestica (Suckow) Borkh. · Apple
N.V.Jo Nicolai en Cie
Capsicum annuum L. · Bell pepper
Helena Valentovicova
Festuca trachyphylla (Hack.) Hack. · Hard fescue
VIJN| R. Vijn c/o Cebeco Seeds B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
Danisco Seed, DK
Cucumis sativus L. · Cucumber
Seminis Vegetable Seeds
Brassica oleracea L. (White Cabbage Group) · White cabbage
Jiri Horal
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Asgrow France S.A. (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Domaine Public (FR)
Zea mays L. subsp. mays (Maize Group) · Maize
LIDEA FRANCE SAS
Triticum aestivum L. · Bread wheat
Rehorova Karla, Kocourkova Zuzana, Sedlacek Tibor, Skala Radovan, Veskrna Ondrei, Knitel Vatslav, Hynek Josef, Hanisova Alena, Horcicka Pavel,
Allium sativum L. · Garlic
MORAVOSEED CZ A.S.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
ASGROW VEGETABLE SEEDS
Prunus persica (L.) Batsch · Peach
ZAIGER FLOYD
Cichorium endivia L. · Endive
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
Malus domestica (Suckow) Borkh. · Apple
Pepinieres et Roseraies Georges Delbard| FR