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.

Mactemaik

Protection expired

Rosa L. · Rose

Samuel McGredy

3 records

Leviola

Terminated

Trifolium pratense L. · Red clover

Agroscope (CH)/DSP SA UTILISER CODE S/11444 (CH)

3 records

Lydia

Protection expired

Triticum aestivum L. · Bread wheat

HAO-DEMETER - Cereal Institute

4 records

Liegnitz

Terminated

Poa pratensis L. · Kentucky bluegrass

Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / Dipl.Ing. agr. Cord Schumann

4 records

Luxena

Active

Glandularia x hybrida (hort. ex Groenl. & Rümpler) G. L. Nesom & Pruski · Common Garden Verbena

Syngenta Seeds B.V.

3 records

Luvanor

Active

Capsicum annuum L. · Bell pepper

HM.Clause S.A.S.

4 records

Lichampion

Terminated

Festuca rubra L. · Red fescue

Euro Grass Breeding GmbH Co. KG

5 records

Licapo

Active

Brassica napus var. napus · Rapeseed

Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / Dipl.Ing.agr. Hans-Otto Wegener in Fa. DSV - Saatzuchtstation Thüle

4 records

Libellule

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE NV-SA, BE

3 records

Lottie

Active

Cucumis melo L. · Melon

BURPEE NL B.V.

3 records

Maali

Active

Hordeum vulgare L. · Barley

Ülle Tamm 50%, Hans Küüts 30%, Ivi Küüts 15%, Pille Sooväli 5%, Centre of Estonian Rural Research and Knowledge

4 records

Laureen

Terminated

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

5 records

Longships

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

VILMORIN

3 records

Lusia

Active

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

Xinjiang, CHN

3 records

Leda

Active

Raphanus sativus L. var. sativus · Radish

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

3 records

Lealdo

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

6 records

Lazarita

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

6 records

Liryka

Active

Agrostis capillaris L. · Common bent

Malopolska Hodowla Roslin Spolka z o.o.

3 records

Logics

Active

Lolium multiflorum Lam. · Italian ryegrass

DLF Seeds A/S

3 records

Ladoga

Active

Cucurbita pepo L. · Field pumpkin

BEJO ZADEN

4 records

Lirren

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Syngenta Crop Protection AG

3 records

KWS Webbum

Active

Triticum aestivum L. · Bread wheat

KWS UK LTD

4 records

KWS Calvini

Active

Zea mays L. · Maize

KWS SAAT SE and CO KGAA

4 records

Lena

Active

Capsicum annuum L. · Bell pepper

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

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.