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 tuberosum L. · Potato
Station de Recherche du Comite Nord (FR)
Solanum melongena L. · Eggplant
Vilmorin-Mikado S.A.S.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Enza Zaden Beheer B.V. / Enza Zaden Beheer B.V.
Solanum melongena L. · Eggplant
Consorzio Sativa Societa Cooperativa Agricola
Poa pratensis L. · Kentucky bluegrass
Euro Grass Breeding GmbH Co. KG
Prunus persica (L.) Batsch · Peach
Bouchet Christophe
Daucus carota L. · Carrot
SUTTONS CONSUMER PRODUCTS LTD
Lolium perenne L. · Perennial ryegrass
Alicja Ramenda
Solanum tuberosum L. · Potato
Fobek B.V., Tuberosum Technologies Inc.
Prunus persica (L.) Batsch · Peach
Maillard Arsene / Maillard Laurence
Brassica oleracea L. (Cauliflower Group) · Cauliflower
DE CORATO SEMENTI
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Sakata Vegetables Europe, F
Lolium multiflorum Lam. · Italian ryegrass
Joost Baert c/o ILVO - Plant-Toegepaste Genetica en Veredeling
Festuca ovina L. · Sheep's fescue
PURE SEED TESTING
Lactuca sativa L. · Lettuce
Nunhems Netherlands B.V.
Festuca rubra L. · Red fescue
TURF SEED EUROPE LTD
Festuca arundinacea Schreb. · Tall fescue
PICKSEED CANADA INC
Malus domestica (Suckow) Borkh. · Apple
Gospodarstwo Szkółkarskie Andrzej i Szymon Nowakowscy
Prunus persica (L.) Batsch · Peach
Laurence Maillard Arsene Maillard, Yes applicant details in question 1
Prunus persica (L.) Batsch · Peach
Arsene Maillard Laurence Maillard
Lolium perenne L. · Perennial ryegrass
DLF Pickseed USA, Inc. and Rutgers, The State University of New Jersey
Cynodon dactylon (L.) Pers. · Bermuda grass
SEEDS WEST
Vicia sativa L. · Common vetch
Milic Dragan, Karagic Dura, Mihailovic Vojislav,
Prunus persica (L.) Batsch · Peach
Maillard Arsene / Maillard Laurence