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.

Kryms`kyi feiierverk

Terminated

Prunus persica (L.) Batsch · Peach

1 record

Mark oro

Active

Solanum lycopersicum L. · Tomato

1 record

Malinove Hornokrajske

Terminated

Malus Mill. · Apple

1 record

Mariesi Veitchii

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Maries C.

1 record

Krajový

Protection expired

Centaurea benedicta (L.) L. · Blessed Thistle

1 record

Magical Sapphire

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

No information of breeder available for this variety

1 record

Koroleva lita

Application submitted

Lactuca sativa L. var. crispa L. · Leaf lettuce

1 record

Mariesii Perfecta

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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

1 record

Konstantinápolyi

Active

Cydonia oblonga Mill. · Quince

1 record

Konferencinė

Protection expired

Pyrus communis L. · European pear

1 record

Marakesh

Active

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

2 records

MAKSIMIRSKI OZIMI

Protection expired

Pisum sativum L. · Pea

Agronomski fakultet Sveučilišta u Zagrebu, Zavod za specijalnu proizvodnju bilja (HR)

1 record

Hörnli

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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

1 record

Magpie

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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

1 record

Magical Coral

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :KOLSTER BEHEER B.V. and SANTHO BEHEER B. V.

1 record

King George V

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Draps-Dom

1 record

H. quelpaertensis

Active

Hydrangea anomala D. Don subsp. petiolaris (Siebold & Zucc.) E. M. McClint. · Climbing hydrangea

No information of breeder available for this variety

1 record

Hovaria

Active

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

Information regarding the breeder received in the contribution to CPVO :Yatabe Mototeru

2 records

Kilimanjaro

Active

Senecio haworthii

1 record

Horizont

Application submitted

Rosmarinus officinalis L. · Rosemary

1 record

Kolins

Withdrawn

Prunus persica (L.) Batsch · Peach

1 record

Kekfrankos

Terminated

Vitis vinifera L. · Common grape vine

1 record

Lidka

Withdrawn

Rosa L. · Rose

1 record

Harmony

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

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

1 record

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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.