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.

PPSR375010

Application submitted

Capsicum annuum L. · Bell pepper

GREENROAD B.V.

1 record

PPGT310011

Application submitted

Capsicum annuum L. · Bell pepper

GREENROAD B.V.

1 record

Quattro

Active

Solanum sisymbriifolium Lam. · Sticky nightshade

VANDINTER RESEARCH B.V.

1 record

PPG-TF 101

Terminated

Festuca arundinacea Schreb. · Tall fescue

Mountain View Seeds

1 record

PST8000

Active

Festuca rubra L. · Red fescue

PURE SEED TESTING

1 record

PST4BU3

Active

Festuca ovina L. · Sheep's fescue

PURE SEED TESTING

1 record

Prebona

Application submitted

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Naumov Ruslan Olehovych, Krasniuk Viacheslav Anatoliiovych,

2 records

Popcorn

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

Cleangro Ltd

1 record

Princess

Terminated

Rubus idaeus L. · Red raspberry

Jacques Marionnet GFA (FR)

2 records

Prince of Orange

Active

Crocosmia Planch. · Montbretia

T.J.M. Leenen

1 record

Primo Red

Active

Solanum lycopersicum L. · Tomato

HM Clause Inc (US)

1 record

Polar Star

Active

Lilium L. · Lily

Rooijakkers Breezand B.V.

1 record

Pokemon

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Dymchenko, Tetiana Muzhylko, Viktor

1 record

Pierwszy Zbiór POL

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

1 record

Pilgrim ISK

Terminated

Vaccinium macrocarpon Aiton · American cranberry

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Portan

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

Pirat

Withdrawn

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Szkola Glowna Gospodarstwa Wiejskiego

1 record

Plevenski favorit

Active

Vitis vinifera L. · Common grape vine

Miroslav Ivanov, Vasil Valchev, Zdravko Nakov

2 records

Pionier GOF

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

1 record

Picasso

Active

Trifolium incarnatum L. · Crimson clover

Carneau Freres SA (FR)

1 record

Picardan

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Perła Czabańska ISK

Terminated

Vitis L. · Grapevine

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Perlyna Kyieva

Terminated

Malus domestica (Suckow) Borkh. · Apple

Boldyzheva Liubov Dmytrivna, Kopan` Kira Mykolaivna, Kopan Volodymyr Pavlovych,

1 record

Perzikrode Zomerappel

Active

Malus domestica (Suckow) Borkh. · Apple

Information not available - Contact NL authorities

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.