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.
Prunus domestica L. · European plum
John M. GARABEDIAN (US)
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
ELSNER WILHELM
Solanum lycopersicum L. · Tomato
Produkcja i Hodowla Roslin Ogrodniczych Krzeszowice sp. z o.o.
Allium cepa L. · Onion
Petr Klapste
Malus Mill. · Apple
SEMPRA CARLO
Cichorium intybus L. · Chicory
Sativa coop (IT)
Vitis vinifera L. · Common grape vine
Petar Dimitrov, Yordan K. Ivanov, Kolyu I. Katerov, Ivan H. Dimitrov
Allium cepa L. var. cepa · Onion
MIRA SEEDS S.R.L.
Prunus domestica L. · European plum
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Allium cepa L. var. cepa · Onion
Hoza Zaden B.V.
Malus Mill. · Apple
RUTGERS FREDRIC HOUGH L.
Allium cepa L. · Onion
Ger Beemsterboer
Lolium perenne L. · Perennial ryegrass
Peak Plant Genetics
Rubus idaeus L. · Red raspberry
Niwa Hodowla Roślin Jagodowych sp. z o.o.
Streptocarpus Lindl. · Cape Primrose
Achim Fleischle
Raphanus sativus L. · Radish
HILD SAMEN GMBH
Raphanus sativus L. var. sativus · Radish
TORSEED - Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa S.A.
Erica carnea L. · Winter heath
Kurt Kramer (Heidezüchtung)
Raphanus sativus L. var. niger (Mill.) S. Kerner · Black radish
Domaine Public (FR)
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
CORA SEEDS S.R.L
Lolium perenne L. · Perennial ryegrass
R 2n (FR)
Rosa L. · Rose
VAN DE LAAK (NL)
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Kientzler
Lactuca sativa L. var. capitata L. · Head lettuce
AUSTROSAAT Österr. Samenzucht- und Handels-AG