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.
Raphanus sativus L. var. oleiformis Pers. · Oil radish
PHP PETERSEN
Chrysanthemum L. · Chrysanthemum
Vandenberg Cornelis P
Festuca rubra L. · Red fescue
Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / Dipl.Ing. agr. Cord Schumann
Cucumis melo L. · Melon
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Festuca rubra L. · Red fescue
The Pickseed Companies Group
x Festulolium Aschers. et Graebn. · Festulolium
DLF Seeds A-S, DK
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Zea mays L. · Maize
KWS, D
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Trifolium repens L. · White clover
PETERSEN| Asmus Soeren Petersen in Fa. P.H. Petersen Saatzucht Lundsgaard GmbH & Co KG
Hordeum vulgare L. · Barley
Verneuil Recherche SA (FR)
Phleum pratense L. · Timothy grass
PLANT BREEDING AND ACCLIMATISATION
Malus Mill. · Apple
VAN DER STUKKEN ANDRE' / VAN DER STUKKEN-NIJNS LAURA
Cucumis sativus L. · Cucumber
SATIMEX QUEDLINBURG HANDELSGESELLSCHAFT GmbH
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Seeds B.V.
Trifolium pratense L. · Red clover
Teagasc (IE)
Festuca arundinacea Schreb. · Tall fescue
PICKSEED WEST INC
Medicago lupulina L. · Black medic
NARODNE POLNOHOSPODARSKE
Raphanus sativus L. var. oleiformis Pers. · Oil radish
J. JOORDENS' ZAADHANDEL
Raphanus sativus L. var. oleiformis Pers. · Oil radish
J. Joordens' Zaadhandel B.V.
Trifolium pratense L. · Red clover
Thierry Bourgoin
Alstroemeria L. · Alstroemeria
VAN ZANTEN EDUARD
Solanum tuberosum L. · Potato
Ijsselmeerpolders BV (NL)
Trifolium repens L. · White clover
Teagasc (IE)