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 lycopersicum L. · Tomato
TOMAS DAVID LOMAS CANO
Brassica oleracea L. (White Cabbage Group) · White cabbage
Twan Groot
Malus Mill. · Apple
Sandidge, Jr., Charles R.|5618 Entiat River Rd., Entiat, WA 98822
Raphanus sativus L. var. niger (Mill.) S. Kerner · Black radish
SPAETH HANS| Erbe/Erbengemeinschaft Dr. Hans Rolf Spaeth
Raphanus sativus L. var. sativus · Radish
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Olea europaea L. · Olive
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan (NL)
Lolium perenne L. · Perennial ryegrass
RAGT 2n, FR
Capsicum annuum L. · Bell pepper
Petr Klapste
Capsicum annuum L. · Bell pepper
Hazera Genetics Ltd. \A.R.O. Volcani Center
Lolium multiflorum Lam. · Italian ryegrass
ZULUETA CORPORACION
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Avena strigosa Schreb. · Black oat
Lammers Seed Options B.V.
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Rubus idaeus L. · Red raspberry
Sadowniczy Zaklad Doswiadczalny Instytutu Ogrodnictwa Brzezna Sp z o.o.
Lactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
Rubus idaeus L. · Red raspberry
Zaweracz Wojciech, Orzel Agnieszka, Danek Jan,
Brassica oleracea L. (White Cabbage Group) · White cabbage
Meinardus P.Boon
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Crop Protection AG
Triticum aestivum L. · Bread wheat
RAGT CZECH S.R.O.
Solanum lycopersicum L. · Tomato
Clause Semences SA (FR)
Vitis vinifera L. · Common grape vine
Vivai Research Center, CZ
Zea mays L. · Maize
RAGT 2n
Allium cepa L. · Onion
SYNGENTA SEEDS B.V.