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.
Clematis L. · Clematis
TOLVER GOOCH LTD (GB)
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
Bejo Zaden B.V.
Chrysanthemum L. · Chrysanthemum
IR. J. VAN DER KNAAP
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds BV (NL)
Raphanus sativus L. var. sativus · Radish
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Allium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Brassica oleracea L. (Broccoli Group) · Broccoli
Takii & Company Ltd
Avena strigosa Schreb. · Black oat
DLF Seeds A-S, DK
Valerianella locusta (L.) Laterr. · Corn salad
Nunhems BV (NL)
Capsicum annuum L. · Bell pepper
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Solanum lycopersicum L. · Tomato
MORAVOSEED CZ A.S.
Prunus persica (L.) Batsch · Peach
Floyd Zaiger (US)
Cucumis melo L. · Melon
Paul Degreef
Brassica oleracea L. (Cauliflower Group) · Cauliflower
MAURIZIO BACCHI
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Leo Schoots
Valerianella locusta (L.) Laterr. · Corn salad
VAN DER PLOEG'S (NL)
Allium cepa L. var. cepa · Onion
Hazera Seeds B.V.
Malus domestica (Suckow) Borkh. · Apple
POPE WILLIAM (GB)
Sorghum bicolor (L.) Moench · Sorghum
DEUTSCHE SAATVEREDELUNG AG
Solanum lycopersicum L. · Tomato
SYNGENTA SEEDS B.V.
Hordeum vulgare L. · Barley
STRUBE| Johann-Friedrich Strube in Fa. Dr. J. Ackermann & Co. SaatzuchtIrlbach (Kommanditgesellschaft) / LIEBL| Josef Liebl in Fa. Dr. J. Ackermann & Co. SaatzuchtIrlbach (Kommanditgesellschaft)
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
Hazera Seeds B.V.
Lactuca sativa L. · Lettuce
Agronomski fakultet Sveučilišta u Zagrebu, Zavod za povrćarstvo (HR)
Beta vulgaris Sugar Beet Group · Sugar beet
SESVanderhave NV