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.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Gautier Semences SAS (FR)
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :HBA B.V.
Trifolium incarnatum L. · Crimson clover
Agro-Largo Kft., Gyál
Lolium perenne L. · Perennial ryegrass
PROSEEDS MARKETING
Cucumis melo L. · Melon
Syngenta Seeds B.V.
Cucurbita pepo L. · Field pumpkin
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Phaseolus vulgaris L. · Common bean
SEMILLAS FITO, S.A.
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium x hybridum Hausskn. · Hybrid ryegrass
DEUTSCHE SAATVEREDELUNG AG
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
TAKII JAPAN and CO. 180 UMEKOJI
Trifolium resupinatum L. · Persian clover
Oseva Uni a.s., CZ
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Vilmorin SA (FR)
Cucumis melo L. · Melon
Ralf Kuijpers
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
TAKII JAPAN and CO. 180 UMEKOJI
Cichorium endivia L. · Endive
HM.Clause S.A.S.
Cucurbita pepo L. · Field pumpkin
Graines Gautier SA (FR)
Lolium perenne L. · Perennial ryegrass
DEUTSCHE SAATVEREDELUNG AG
Glycine max (L.) Merr. · Soybean
Institut za ratarstvo i povrtarstvo, Novi Sad
Capsicum annuum L. · Bell pepper
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Lolium perenne L. · Perennial ryegrass
ILVO-PLANT 39
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Zoldsegtermesztesi Kutato Intezet, H
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Plant Research (NZ) Ltd (NZ)
Festuca rubra L. · Red fescue
PRZEDSIęBIORSTWO NASIENNE "ROLNAS" SP. Z O.O.
Festuca arundinacea Schreb. · Tall fescue
LOS PRADOS S.A.