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.
Solanum sisymbriifolium Lam. · Sticky nightshade
P.H. Petersen Saatzucht Lundsgaard GmbH Herrn Asmus Sören Petersen
Ribes glandulosum Grauer · skunk currant
Information not available - Contact NL authorities
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Daucus carota L. · Carrot
Domaine Public (FR)
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Rampp
Brassica oleracea L. (Cauliflower Group) · Cauliflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
ZULUETA CORPORACION
Ribes uva-crispa L. · Gooseberry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Allium cepa L. · Onion
Burak Ozkale
Ribes uva-crispa L. · Gooseberry
Gospodarstwo Rolno-Ogrodnicze Grzegorz Kostka
Raphanus sativus L. var. sativus · Radish
Domaine Public (FR)
Poa pratensis L. · Kentucky bluegrass
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Malus domestica (Suckow) Borkh. · Apple
Sempra Praha a.s., CZ
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Rosa L. · Rose
Pepinieres et Roseraies Georges Delbard| FR
Chrysanthemum x morifolium Ramat. · Florist's daisy
PARATY B.V.B.A
Malus domestica (Suckow) Borkh. · Apple
Pepinieres et Roseraies Georges Delbard| FR
Rosa L. · Rose
Pepinieres et Roseraies Georges Delbard| FR
Vitis vinifera L. · Common grape vine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Allium cepa L. · Onion
Willem van Haerke
Prunus persica (L.) Batsch · Peach
Klochko Nataliia Mykolaivna, Sydorenko Mykhailo Fedorovych,
Vaccinium corymbosum L. · Highbush blueberry
Szkola Glowna Gospodarstwa Wiejskiego
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Benito Juarez
Vitis L. · Grapevine
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka