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.

San Martin

Active

Tulipa L. · Tulip

Vertuco B.V.

1 record

Rusa

Terminated

Glycine max (L.) Merr. · Soybean

Hanzhelo Olha Ivanivna, Lavrova Halyna Dmytrivna, Sichkar V'iacheslav Ivanovych,

2 records

Rozana kyivs`ka

Active

Fragaria L. · Strawberry

Kopan Volodymyr Pavlovych, Kopan` Kira Mykolaivna,

2 records

Rouge foncé d'Erfurt

Terminated

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

Domaine Public (FR)

1 record

Rotes Phaenomen

Terminated

Rosa L. · Rose

BAUM KARL| Karl Baum

1 record

Sanat

Terminated

Anethum graveolens L. · Dill

Horova Tamara Korniivna, Tkalych IUrii Vadymovych, Pozniak Oleksandr Vasyl`ovych, Chaban Lesia Vasylivna,

2 records

Rosy Wave

Terminated

Petunia x hybrida hort. ex E. Vilm. · Garden petunia

KIRIN BREWERY CO LTD

1 record

ROYAL FLASH

Terminated

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

Asgrow France S.A. (FR)

1 record

Roi des Belges

Terminated

Phaseolus vulgaris L. · Common bean

Domaine Public (FR)

1 record

Rotes Juwel

Terminated

Erica carnea L. · Winter heath

KRAMER KURT| Kurt Kramer (Calluna-Spezialbetrieb)

1 record

Rote Marlies

Withdrawn

Calluna vulgaris (L.) Hull · Common heather

KERSKI| Manfred Kerski

1 record

Rode Ingrid Marie

Active

Malus domestica (Suckow) Borkh. · Apple

Information not available - Contact NL authorities

1 record

Royal Dynasty

Withdrawn

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

Seminis Vegetable Seeds

1 record

ROYAL

Terminated

Campanula L. · Bellflower

GARTNERIET TVILLINGEGAARDEN A/S

1 record

Rodos F1

Terminated

Cucumis sativus L. · Cucumber

Henrikh IUst

2 records

Rusalka

Active

Galanthus nivalis L. · Snowdrop

UNIVERZA V LJUBLJANI, BIOTEHNIŠKA FAKULTETA BOTANIČNI VRT / UNIVERZA V LJUBLJANI, BIOTEHNIŠKA FAKULTETA BOTANIČNI VRT

1 record

Riteil

Terminated

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

Naumov Ruslan Olehovych, Krasnok Viacheslav Anatoliiovych,

2 records

Rio bermuda

Application submitted

Cynodon dactylon (L.) Pers. · Bermuda grass

JOHNSTON SEED COMPANY

1 record

ROSA PERLE

Terminated

Rhododendron L. · Azalea

OTTO STAHNKE

1 record

Robust F1

Terminated

Cucumis melo L. · Melon

Larry Hollar, Xuemei Zhang,

2 records

Robin

Withdrawn

Trifolium incarnatum L. · Crimson clover

AUBURN UNIVERSITY

1 record

Riesenquitte van Vranja

Active

Cydonia oblonga Mill. · Quince

Information not available - Contact NL authorities

1 record

Royal Carpet POL

Terminated

Lobularia maritima (L.) Desv. · Sweet alyssum

Krakowska Hodowla i Nasiennictwo Ogrodnicze POLAN sp. z o.o.

1 record

RICHOTALE

Terminated

Rosa L. · Rose

Raymond Richardier (FR)

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.