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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.

CIVM123

Application submitted

Malus domestica (Suckow) Borkh. · Apple

Michelangelo Leis^^^Alessio Martinelli

2 records

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch · Lindheimer's beeblossom

MICHIO KATAOKA

2 records

Bistorta amplexicaulis (D. Don) Greene · Red bistort

Boot & Co. Boomkwekerijen B.V.

2 records

Catemaco

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

D Delta

Active

Aloe aristata Haw. x Gasteria carinata (Mill.) Duval var. verrucosa (Mill.) Van Jaarsv.

Deltacactus S.L.

2 records

Caserta

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

3 records

Darhalo

Active

Symphoricarpos x chenaultii Rehder · Chenault coralberry

Darthuizer Boomkwekerijen B.V.

2 records

DAY2

Active

Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. · Pampas grass

Daylight Boomkwekerij V.O.F.

2 records

Phlox divaricata L. · blue phlox

Tony Avent

2 records

Darthil

Active

Mahonia aquifolium (Pursh) Nutt. · blue barberry

Miklósné Józsa

2 records

Zantedeschia Spreng. · Arum-lily

Kapiteyn Breeding B.V.

2 records

Barpimisisi

Terminated

Dianthus caryophyllus L. · Carnation

Emilio Cano

2 records

Barjamocar

Terminated

Dianthus caryophyllus L. · Carnation

DONATO DI GIORGIO

2 records

Dancaschoice

Terminated

Petunia Juss. · Petunia

Gavriel Danziger

2 records

Cupido

Active

Calochortus Pursh. · Globe Tulip

Cornelis W. De Goede

2 records

BRLD001

Active

Brassica oleracea L. (Broccoli Group) · Broccoli

SASAYAMA JUNICHI

2 records

DANCOP27

Active

Sutera cordata Thunb. Kuntze · Bacopa

Gavriel Danziger

2 records

Baruqedu

Terminated

Dianthus caryophyllus L. · Carnation

EMILIO A. CANO VICENTE

2 records

Helleborus L. · Christmas Rose

Josef Heuger

2 records

Barinka

Terminated

Dianthus caryophyllus L. · Carnation

DONATO DI GIORGIO

2 records

Heuchera L. · Coral Flower

Ellen Leue

2 records

x Heucherella H. R. Wehrh. · Foamy bells

Janet N. Egger

2 records

Lonicera L. · Honeysuckle

C. Esveld V.O.F.

2 records

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