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.

Afus-Ali

Active

Vitis L. · Grapevine

2 records

Alpha 5

Terminated

Brassica oleracea L. (Cauliflower Group) · Cauliflower

2 records

Commodore

Active

Festuca rubra L. · Red fescue

2 records

Braunschweiger

Protection expired

Allium cepa L. · Onion

Sativa coop (IT)

1 record

Icaro

Active

Solanum lycopersicum L. · Tomato

1 record

Warrior

Active

Festuca arundinacea Schreb. · Tall fescue

1 record

SLUBGD1016

Active

Malus Mill. · Apple

1 record

Sador

Withdrawn

Cucurbita pepo L. · Field pumpkin

1 record

Rizling rituál

Active

Vitis vinifera L. · Common grape vine

1 record

Nitria

Active

Vitis vinifera L. · Common grape vine

2 records

Delvit

Protection expired

Malus domestica (Suckow) Borkh. · Apple

2 records

You and Me

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Ryoji Irie

1 record

Xian

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Santho Beheer B.v. (Eveleens C.P.)

1 record

Yellow Bambie

Active

Solanum lycopersicum L. · Tomato

1 record

Westerveld

Active

Mespilus germanica L. · Medlar

1 record

Vulcanus

Protection expired

Euphorbia milii Des Moul. · Crown of thorns

1 record

VELDZE

Terminated

Vitis vinifera L. · Common grape vine

1 record

Zweigeltrebe

Active

Vitis vinifera L. · Common grape vine

1 record

Zlata

Protection expired

Verbascum densiflorum Bertol.

1 record

Variegata

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Blume

1 record

Zalm Forest Flame

Active

Fittonia Coem. · Fittonia

1 record

Undercover

Withdrawn

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

1 record

Zina

Active

Lactuca sativa L. · Lettuce

1 record

ZILGA

Terminated

Vitis vinifera L. · Common grape vine

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.