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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
YEN MING CHANG
Solanum lycopersicum L. · Tomato
Syngenta, NL
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Poa pratensis L. · Kentucky bluegrass
Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / Dipl.Ing. agr. Cord Schumann
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Seeds B.V. (NL)
Rosa L. · Rose
ZARY| Dr. Keith Zary c/o Bear Creak Gardens, Inc.
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Brassica oleracea L. (White Cabbage Group) · White cabbage
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL BV, NL
Rosa L. · Rose
Wilhelm Kordes, W Kordes' Sohne
Lactuca sativa L. · Lettuce
Syngenta Seeds B.V.
Brassica oleracea L. (Kale Group) · Kale
P.H. Petersen, D-2391 Lundsgaard
Poa trivialis L. · Rough bluegrass
JACKLIN SEED
Festuca arundinacea Schreb. · Tall fescue
Top Green (FR)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Bejo Zaden, NL
Trifolium resupinatum L. · Persian clover
PETERSEN| Asmus Soeren Petersen in Fa. P.H. Petersen Saatzucht Lundsgaard GmbH & Co KG
Cucumis melo L. · Melon
Ralf Kuijpers
Capsicum annuum L. · Bell pepper
Silvester de Nooijer
Capsicum annuum L. · Bell pepper
Syngenta Seeds, NL
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
XINGPING ZHANG
Brassica oleracea L. (Broccoli Group) · Broccoli
Bejo Zaden BV (NL)
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Ger Beemsterboer
Capsicum annuum L. · Bell pepper
Silvester de Nooijer