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.
Asparagus officinalis L. · Asparagus
SC Darbonne (FR)/Institut National de la Recherche Agronomique (FR)/Vilmorin SA (FR)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Bejo Zaden B.V.
Allium sativum L. · Garlic
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Rubus L. subg. Rubus · Blackberry
Sadowniczy Zaklad Doswiadczalny Instytutu Ogrodnictwa Brzezna Sp z o.o.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Vilmorin SA (FR)
Lactuca sativa L. · Lettuce
MERIDIEM SEEDS S.L.
Cucumis melo L. · Melon
Monsanto Vegetable IP Management B.V.
Cucumis sativus L. · Cucumber
PlantiCo Hodowla i Nasiennictwo Ogrodnicze Golebiew sp. z o.o.
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Allium schoenoprasum L. · Chives
Instytut Ogrodnictwa - Państwowy Instytut Badawczy \Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa w Ożarowie Mazowieckim Spółka z o.o.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum tuberosum L. · Potato
Danespo A/S
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Organisation Bretonne de Selection-OBS (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum lycopersicum L. · Tomato
EDEN SEEDS
Cucumis melo L. · Melon
UNITED GENETICS SEEDS CO
Prunus persica (L.) Batsch · Peach
Arsene Maillard Laurence Maillard
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Domaine Public (FR)
Raphanus sativus L. var. sativus · Radish
Graines Gautier SA (FR)
Raphanus sativus L. var. sativus · Radish
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Capsicum annuum L. · Bell pepper
Paulina Bartkowska Gospodarstwo Hodowlano - Nasienne Bartkowscy
Lathyrus sativus L. · Grass pea
Toth Sandorne Dr. Hubai Erzsebet / Bobvos Palne / Breznyik Katalin / Basilidesne Dr. Toth Erzsebet
Foeniculum vulgare Mill. · Fennel
CORA SEEDS S.R.L
Allium cepa L. var. cepa · Onion
Prosem (FR)