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.
Phaseolus vulgaris L. · Common bean
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Spinacia oleracea L. · Spinach
Pop Vriend Research B.V.
Vitis L. · Grapevine
Lubik István
Malus domestica (Suckow) Borkh. · Apple
Uno Kivistik
Malus domestica (Suckow) Borkh. · Apple
ROUX (FR)
Corylus avellana L. · Common hazel
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum melongena L. · Eggplant
HAO-DEMETER Institute of Plant Breeding and Genetic Resources
Vitis L. · Grapevine
INCONNU (FR)
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Phleum pratense L. · Timothy grass
SCHUETZE| Dr. Ursula Schuetze in Fa. Saatzucht Leutewitz / LEHMANN LILLI| Lilli Lehmann
Raphanus sativus L. var. niger (Mill.) S. Kerner · Black radish
AUSTROSAAT Österr. Samenzucht- und Handels-AG
Prunus armeniaca L. · Apricot
CEP Innovation SARL (FR)/Institut National de la Recherche Agronomique (FR)
Avena strigosa Schreb. · Black oat
Andreas Gertz
Solanum lycopersicum L. · Tomato
Sakata Seed Corporation (SCC)
Hydrangea anomala D. Don subsp. petiolaris (Siebold & Zucc.) E. M. McClint. · Climbing hydrangea
Shimizu Toshiro
Brassica rapa L. subsp. campestris (L.) A. R. Clapham · Field mustard
Persson, Christer/Kalev, Saima
Lactuca sativa L. · Lettuce
PRZEDSIEBIORSTWO NASIENNICTWA
Lolium multiflorum Lam. · Italian ryegrass
KIS (SI)
Rosa L. · Rose
W.KORDES'SOHNE
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
UNITED GENETICS SEEDS CO
Solanum lycopersicum L. · Tomato
Vilmorin SA (FR)
Rosa L. · Rose
Werner Kordes / Reimer Kordes / Wilhelm Kordes
Lactuca sativa L. · Lettuce
Domaine Public (FR)