Cultivation

Winter covering

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.

Sources10

Breakdown by crop

Found in these crops

Apple 613 Grapevine 393 Tomato 340 Peach 338 Melon 293 Cauliflower 270 Bell pepper 263 Perennial ryegrass 246 Rose 242 Cucumber 230 Watermelon 219 Bigleaf hydrangea 198

Varieties that feature this in their description

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.

DKC6895

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

1 record

Delmarosa

Active

Lilium L. · Lily

De Jong Beheer B.V.

1 record

Druzhba

Active

Vitis vinifera L. · Common grape vine

Yordan K. Ivanov, Vasil Y. Valchev, Georgi S. Petkov, Boris A. Muzyichenko (RU), Arif M. Aliev (RU), Ivan A. Kostrikin (RU)

2 records

Druzhnaia siemieika F1

Terminated

Cucumis sativus L. · Cucumber

Havrysh Serhii Fedorovych, Dubinin Serhii Volodymyrovych,

2 records

DP 5690 B/RR

Terminated

Gossypium hirsutum L. · Upland cotton

DELTA&PINE LAND HOLDING

1 record

Diemierdzhyns`kyi

Terminated

Prunus persica (L.) Batsch · Peach

Latsko Tetiana Anatoliivna, Oriekhova Valentyna Petrivna, Smykov Volodymyr Karpovych, Perfil`ieva Zoia Mykolaivna,

2 records

Didona

Terminated

Cucumis melo L. · Melon

Lymar Anatolii Ostapovych, Didenko Tetiana Volodymyrivna, Didenko Volodymyr Pavlovych,

1 record

Dickarl

Terminated

Rosa L. · Rose

Colin Dickson c/o Dickson Nurseries Limited

1 record

Double Fantasy

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

2 records

DARK TRIPOLI

Protection expired

Chrysanthemum indicum L. · Indian chrysanthemum

Dirk Pieters (BE)

1 record

Doubleen

Active

Lilium L. · Lily

World Breeding B.V

1 record

DORPIMP

Withdrawn

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

1 record

Diamex

Terminated

Cucumis melo L. · Melon

FRANCE GRAINES (FR)

1 record

Dexter F1

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

1 record

Dorcey

Active

Lilium L. · Lily

Hoogland & Van Veen Lelie B.V.

1 record

De SÃ©zanne

Active

Raphanus sativus L. var. sativus · Radish

Domaine Public (FR)

1 record

DON

Withdrawn

Cucumis melo L. · Melon

Seminis Vegetable Seeds

1 record

Demi long ecarlate a t.p.b.b.

Terminated

Raphanus sativus L. var. sativus · Radish

Domaine Public (FR)

1 record

De Milan rouge extra-hÃ¢tif Ã chassis

Active

Brassica rapa L. var. rapa (L.) Thell. · Turnip

Domaine Public (FR)

1 record

Czarna Mańka

Terminated

Alcea rosea L. var. nigra hort. · Hollyhock

Instytut Roślin i Przetworów Zielarskich

1 record

Curitiba

Active

Lilium L. · Lily

De Enk Noordoostpolder B.V.

1 record

Cualtacciu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Dechko

Active

Triticum durum Desf. · Durum wheat

Rangel Dragov, Krasimira Taneva

2 records

CRAVE

Withdrawn

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Keith Hardy

1 record

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Cultivation

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.