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. (Red Cabbage Group) · Red cabbage
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Avena sativa L. · Oat
Národné Polnohospodárske a Potravinárske Centrum (NPPC)
Festuca rubra L. · Red fescue
Bc Institut d.d. Zagreb (HR)
Phaseolus coccineus L. · Runner bean
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan Budapest, H
Lactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Sakata Vegetables Europe S.A.S
Brassica oleracea L. (White Cabbage Group) · White cabbage
Masami Yamamoto
Zea mays L. · Maize
Beigbeder Jean
Raphanus sativus L. · Radish
Semenarna Ljubljana, SI
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans Georg Lembke KG,DE
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Nickerson Zwaan B.V. (NL)
Erica carnea L. · Winter heath
Kurt Kramer (Heidezüchtung)
Allium cepa L. var. cepa · Onion
Instytut Ogrodnictwa - Państwowy Instytut Badawczy \Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa w Ożarowie Mazowieckim Spółka z o.o.
Allium cepa L. · Onion
Saatzucht Quedlinburg-DE
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Kamala Oleuy
Solanum tuberosum L. · Potato
RADDATZ (DE)
Erica carnea L. · Winter heath
Kurt Kramer (Heidezüchtung)
Cucumis sativus L. · Cucumber
Semenarna Ljubljana, SI
Rhododendron L. · Azalea
KARL GLASER
Cotoneaster Medik. · Cotoneaster
STROBEL & CO
Secale cereale L. · Rye
Lammers Seed Options B.V.
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Bejo Zaden (NL)