Cultivation
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.
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.
Trifolium subterraneum L. · Subterranean clover
South Australian Research and Development Institute
Solanum lycopersicum L. · Tomato
Sakata Vegenetics (Pty) Ltd (ZA)/Sakata Seed Sudamerica Ltd (BR)
Sinapis alba L. · White mustard
Firma Nasienna GRANUM - Z. Manias - S. Menc - J. Szymański Spółka Jawna
Linum usitatissimum L. · Common flax
Linéa Semences de Lin G.I.E.
Solanum lycopersicum L. · Tomato
Yuksel Tohumculuk LTD
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
J.W.P. Kolk Bloemen B.V.
Rosa L. · Rose
ALAIN ANTOINE MEILLAND (FR)
Cucumis melo L. · Melon
BURPEE NL B.V.
Cucumis melo L. · Melon
Enza Zaden Beheer B.V.
Prunus persica (L.) Batsch · Peach
Arsene Maillard (FR)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
BEJO ZADEN
Cucumis melo L. · Melon
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Rosa L. · Rose
Universal Rose Selection-Meilland
Sinapis alba L. · White mustard
FREIHERR VON MOREAU SAATZUCHT
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
SANTHO BEHEER B.V.
Lolium perenne L. · Perennial ryegrass
ALRES
Cucumis sativus L. · Cucumber
Gavrish Hybrid Seeds (RU)
Trifolium alexandrinum L. · Egyptian clover
CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.
Lolium perenne L. · Perennial ryegrass
ESKUSA GmbH Herrn Dr. Fred Eickmeyer
Trifolium subterraneum L. · Subterranean clover
CREA - CENTRO DI RICERCA PER LA ZOOTECNIA ED ACQUACOLTURA (CREA-ZA)
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Rubus L. · Blackberry
Festuca arundinacea Schreb. · Tall fescue
RAGT 2N S.A.S
Calluna vulgaris (L.) Hull · Common heather
Kurt Kramer (Heidezüchtung)