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.
Zea mays L. subsp. mays (Maize Group) · Maize
Caussade Semences SA (FR)
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Cichorium endivia L. · Endive
Clause Semences SA (FR)
Rosa L. · Rose
MEILLAND ALAIN ANTOINE
Allium porrum L. · Leek
T. Bartlomeiczak, J. Tomczak,
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Clause Semences SA (FR)
Capsicum annuum L. · Bell pepper
Sakata Seed America
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
D.J.VAN DER HAVE
Pyrus communis L. · European pear
Sempra Praha a.s., CZ
Rhododendron L. · Azalea
KARL GLASER
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
ILVO-PLANT 39
Rosa L. · Rose
Meilland International
Capsicum annuum L. · Bell pepper
MERIDIEM SEEDS S.L.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Domaine Public (FR)
Capsicum annuum L. · Bell pepper
Tovarystvo z obmezhenoiu vidpovidalnistiu "SPARK SIDZ"
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Ralf Kuijpers, Jan Draaistra
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Agrostis canina L. · Velvet bent
SIMON| Prof. Dr. Uwe Simon Lehrstuhl fuer Gruenlandlehre der TU Muenchen
Cucumis melo L. · Melon
ZERAIM GEDERA
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
SAKATA SEED AMERICA INC US
Brassica oleracea L. (White Cabbage Group) · White cabbage
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lilium L. · Lily
WIM VLETTER
Solanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
Cucumis melo L. · Melon
Ralf Kuijpers