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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

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.

Lolium perenne L. · Perennial ryegrass

Aberystwyth University (IBERS)

IE NL
9 records

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

NL
5 records

Prunus armeniaca L. · Apricot

SDR Fruit LLC (US)

FR
7 records

Fiscinne

Active

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Zerr Katharina

5 records

Winbee

Active

Lactuca sativa L. · Lettuce

NUNHEMS

NL
7 records

Prunus armeniaca L. · Apricot

Stephen Southwick & David Decalo

FR
7 records

Verdi

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Fresh Forward Holding BV, Netherlands

UA
6 records

Ultra

Active

Lolium perenne L. · Perennial ryegrass

CRIADERO EL CENCERRO

DE
7 records

Turbine

Active

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

HM.CLAUSE

FR
5 records

Three60

Active

Lolium perenne L. · Perennial ryegrass

Grasslands Innovation Ltd

NL
6 records

Rosa L. · Rose

HANS JURGEN EVERS (T)

DE
5 records

Cucurbita maxima Duchesne x Cucurbita moschata Duchesne

TOKITA SEED CO LTD

NL
6 records

Festuca arundinacea Schreb. · Tall fescue

Rutgers, the State University of New Jersey and Novel AG, Inc.

CZ
7 records

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

SK
5 records

Alstroemeria L. · Alstroemeria

VAN STAAVEREN B.V.

NL
5 records

Soprano

Active

Lolium perenne L. · Perennial ryegrass

Rutgers, The State University of New Jersey

NL
5 records

Simmons

Active

Malus domestica (Suckow) Borkh. · Apple

International Plant Management, Inc (US)

FR
7 records

Agrostis capillaris L. · Common bent

PGG Wrightson Seeds

NL
7 records

Rubicon

Active

Poa pratensis L. · Kentucky bluegrass

Novel AG, Inc. & Columbia River Seeds, LLC

CZ
5 records

Malus domestica (Suckow) Borkh. · Apple

Xavier Simier, Patrick Tessier, France

FR
6 records

Raphanus sativus L. var. oleiformis Pers. · Oil radish

KWS, D

DE
7 records

Raymond

Active

Cucumis melo L. · Melon

HAZERA SEEDS B.V., IL

FR
5 records

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

IT
6 records

Process

Active

Lolium perenne L. · Perennial ryegrass

Peak Plant Genetics, LLC & Rutgers, The State University of New Jersey

CZ
6 records

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