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 perenne L. · Perennial ryegrass
DLF SEEDS A/S
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Sakata Vegetables Europe, F
Festuca rubra L. · Red fescue
LIMAGRAIN GENETICS GRANDES CULTURES
Cucumis sativus L. · Cucumber
Bejo Zaden B.V.
Lolium perenne L. · Perennial ryegrass
SCHUMANN CORD / STELLING DIETER
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Prunus avium (L.) L. · Sweet cherry
Výzkumný a Šlechtitelský ústav Ovocnářský Holovousy s.r.o.
Poa pratensis L. · Kentucky bluegrass
JACKLIN SEED
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Seeds, NL
Lolium perenne L. · Perennial ryegrass
STELLING DIETER
Cucumis sativus L. · Cucumber
Paul Degreef
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Rosa L. · Rose
Poulsen Roser A/S
Pyrus communis L. · European pear
The New Zealand Institute for Plant and Food Research
Malus domestica (Suckow) Borkh. · Apple
Volz Richard
Malus domestica (Suckow) Borkh. · Apple
SOUTHERN TREES LIMITED
Malus domestica (Suckow) Borkh. · Apple
Markus Kellerhals Agroscope
Prunus persica (L.) Batsch · Peach
Maillard Arsene / Maillard Laurence
Lolium perenne L. · Perennial ryegrass
NEW ZEALAND AGRISEED
Prunus armeniaca L. · Apricot
Maillard Arsene / Maillard Laurence
Malus domestica (Suckow) Borkh. · Apple
Glynn Fankhauser
Prunus armeniaca L. · Apricot
Arsene Maillard Laurence Maillard
Prunus armeniaca L. · Apricot
Arsene Maillard Laurence Maillard