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.
Sinapis alba L. · White mustard
PHP PETERSEN
Cucumis melo L. · Melon
NUNHEMS ZADEN
Malus domestica (Suckow) Borkh. · Apple
NOVADI SARL
Malus Mill. · Apple
John und Sue Hill Hillwell Orchard
Phaseolus vulgaris L. · Common bean
Pop Vriend, NL
Agrostis capillaris L. · Common bent
VANDIJKE| VANDIJKE RESEARCH B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
XINGPING ZHANG
Poa pratensis L. · Kentucky bluegrass
Weibull, Peder
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
UTECHT| Angelika Utecht in Fa. Syngenta Seeds GmbH -Niederlassung-
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Raphanus sativus L. var. oleiformis Pers. · Oil radish
MATTON CLOVIS
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan, NL
Brassica oleracea L. (Cauliflower Group) · Cauliflower
VEGETABLE MONSANTO B.V.
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Prunus persica (L.) Batsch · Peach
Maillard Arsene|Elne, FR / Maillard Laurence|Elne, FR
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Seeds, NL
Vaccinium virgatum Aiton · Rabbit-eye blueberry
Patel Narandra
Prunus armeniaca L. · Apricot
United States of America as represented by the Secretary of Agriculture
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Meilland Star Rose S.A.
Malus domestica (Suckow) Borkh. · Apple
STATION FEDERALE RAC
Petunia Juss. · Petunia
Hiroshi Hirabayashi, Keisei Rose Nurseries, Inc.
Malus domestica (Suckow) Borkh. · Apple
Jones Graeme / Jones Karen
Lactuca sativa L. · Lettuce
ZONNEVELD OLAF