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.

Fat man

Active

Cucurbita maxima Duchesne · Giant pumpkin

BLUMEN GROUP S.P.A

2 records

Elaurora

Active

Solanum lycopersicum L. · Tomato

ERMA ZADEN EXPORT B.V.

3 records

Camares

Active

Camelina sativa (L.) Crantz · Camelina

PANAM FRANCE SAS (FR)

2 records

Calaflor

Application submitted

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

5 records

Havanita

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

4 records

Halka

Active

Prunus avium (L.) L. · Sweet cherry

VÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o. (CZ)

5 records

Clarry

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

ROYAL SEEDS S.R.L.

2 records

Gepard

Active

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

TAKII & CO LTD

2 records

Fleixa

Active

Oryza sativa L. · Rice

IVIA (DPTO. ARROZ)/INIA

3 records

Alquimista

Active

Capsicum annuum L. · Bell pepper

PILPEL SEEDS

2 records

Damsell

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Organisation Bretonne de Selection-OBS (FR)/Institut National de la Recherche Agronomique (FR)/Cerafel (FR)

2 records

Caribbean Sea

Terminated

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

3 records

PURPLERIJ1

Active

Sarcococca hookeriana Baill.

JOHN ROBERTUS RIJNBEEK

2 records

Caribbean Victory

Terminated

Cucumis melo L. · Melon

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

3 records

Oliver

Application submitted

Malus domestica (Suckow) Borkh. · Apple

Oliver Thomas Ryan

3 records

DUESWEBSA

Active

Petunia Juss. · Petunia

Tobias Dümmen

2 records

ECHOR273

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

Henricus Maria Joseph Holtmaat

2 records

BELSEMCOB1

Active

Sempervivum arachnoideum L. · Cobweb houseleek

BELGICACTUS B.V.B.A.

2 records

CBO107

Active

Campanula portenschlagiana Schult. · Dalmatian bellflower

Gartneriet Thoruplund A/S

2 records

Hiljwlsdaca

Active

Helleborus x sahinii Grimshaw

HilverdaKooij B.V

2 records

CBO041

Active

Campanula portenschlagiana Schult. · Dalmatian bellflower

Gartneriet Thoruplund A/S

2 records

Cabaret Noir

Active

Vitis vinifera L. · Common grape vine

Valentin Blattner

2 records

Zombie

Active

Cucurbita pepo L. · Field pumpkin

TOZER SEEDS LTD

4 records

Zaigle

Active

Prunus persica (L.) Batsch · Peach

Floyd Zaiger (US)

4 records

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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.