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.

French Crown

Active

Tulipa L. · Tulip

Holland Bolroy Markt B.V.

1 record

Frel

Terminated

Fragaria x Potentilla

ELLIS| Dr. J.R. Ellis

1 record

Goldi TZ F1

Application submitted

Cucumis melo L. · Melon

Robert Priieur

2 records

G106R

Terminated

Helianthus annuus L. · Sunflower

AGRIGENETICS CORPORATION

2 records

Golden Ball

Active

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

Lim Sang Hwa

2 records

Gala Dark

Application submitted

Malus domestica (Suckow) Borkh. · Apple

Ryszard Nowakowski

3 records

Florin

Terminated

Chrysanthemum L. · Chrysanthemum

Dekker

1 record

Freckles

Terminated

Lactuca sativa L. · Lettuce

Seeds by Design (US)

1 record

Frank White

Withdrawn

Skimmia japonica Thunb. · Japanese skimmia

Akerboom

1 record

Freedom F1

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Ton Loogman

1 record

GITTI

Terminated

Rhododendron L. · Azalea

HOLZ PETER-HANS

1 record

Gitana

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Clause Tezier, FR

1 record

Frankfurter Riesen

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Domaine Public (FR)

1 record

First Love

Active

Tulipa L. · Tulip

Future Tulip B.V.

2 records

Forget Me Not

Active

Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven

Information regarding the breeder received in the contribution to CPVO :De Belder & van Trier

1 record

Fiorosso

Active

Capsicum annuum L. · Bell pepper

ReinSaat KG

1 record

Fontaine

Active

Fragaria L. · Strawberry

Information not available - Contact NL authorities

1 record

FLORIDA

Application submitted

Cynodon dactylon (L.) Pers. · Bermuda grass

SEMILLAS FITO' S.A.

1 record

Garrigue

Terminated

Cucumis melo L. · Melon

Clause Semences SA (FR)

1 record

FEL 14013

Active

Rosa L. · Rose

ROSERAIES FELIX GAEC (FR)

1 record

GALAKTIKA

Terminated

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

Burak Ozkale

1 record

Filiska

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

2 records

Gabi

Terminated

Festuca ovina L. · Sheep's fescue

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

1 record

FERTOEDI KARMIN

Terminated

Rubus idaeus L. · Red raspberry

Kollanyi Laszlo / German Istvanne

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.