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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Fred McCuistion
Phaseolus vulgaris L. · Common bean
Nickerson Zwaan
Begonia L. · Begonia
Hoefnagels B.V.
Lilium L. · Lily
Mak Breeding Rights B.V.
Lilium L. · Lily
De Jong Beheer B.V.
Lilium L. · Lily
World Breeding B.V
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Domaine Public (FR)
Helianthus annuus L. · Sunflower
Honcharuk, Borys
Tulipa L. · Tulip
Gulik V.o.f.
Tulipa L. · Tulip
Remarkable C.V.
Vitis vinifera L. · Common grape vine
Dimitar Babrikov, Stoyan Kukunov
Malus Mill. · Apple
EVANS WILLIAM G. / SNIPES DON R.
Festuca rubra L. · Red fescue
Mommersteeg International BV (NL)
Malus domestica (Suckow) Borkh. · Apple
Dr. Franz Ruess LVWO Weinsberg
Trichosanthes cucumerina L. var. anguina (L.) Haines · Club Gourd
VINATORU COSTEL
Cucumis melo L. · Melon
Domaine Public (FR)
Rosa L. · Rose
ROSERAIES FELIX GAEC (FR)
Solanum melongena L. · Eggplant
Robert Priieur
Tagetes patula L. · French marigold
CNOS Przedsiebiorstwo Nasiennictwa Ogrodniczego sp. z o.o.
Allium cepa L. · Onion
Muzhylko Dmytro Valentynovych, Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Zea mays L. subsp. mays (Maize Group) · Maize
INIA/X.GALICIA
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Cucumis melo L. · Melon
Enza Zaden Beheer B.V.
Prunus domestica L. · European plum
Information not available - Contact NL authorities