Shopska alena
TerminatedRubus idaeus L. · Red raspberry
Emil K. Popov, Lulcho I. Hristov
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.
Rubus idaeus L. · Red raspberry
Emil K. Popov, Lulcho I. Hristov
Vitis vinifera L. · Common grape vine
Bankovska Mariia Hryhorivna, Tarakhtii Liudmyla Ivanivna, Sambors`ka Hanna Kyrylivna, Meleshko Larysa Fedorivna, Abliazova Aia Pavlivna, Tulaieva Maiia Ivanivna, Ruzhyts`ka Iryna Vasylivna,
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
MASIÁ CISCAR S.A.
Clematis viticella L. · Italian leather flower
Uno Kivistik, Aili Kivistik
Lilium L. · Lily
De Looff World Breeding B.V.
Ribes uva-crispa L. · Gooseberry
Lushpihan Ol`ha Petrivna, Pavlov Oleh Oleksiiovych,
Chrysanthemum L. · Chrysanthemum
Zavidova Liudmyla Hnativna, Horobets Vasyl Fedorovych,
Solanum lycopersicum L. · Tomato
Southern Seed s.r.l (IT)
Malus domestica (Suckow) Borkh. · Apple
Tsuneo Murakami (JP)
Allium cepa L. · Onion
Zuhair Bibi
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Dave Fisher
Brassica oleracea L. (White Cabbage Group) · White cabbage
Suddenko Viktor Hryhorovych, Patsuriia Dzheneri Volodymyrovych, Monakhos Hryhorii Fedorovych, Kriuchkov Anatolii Vasyl`ovych, Aleksieiev IUryi Borysovych,
Sparaxis Ker Gawl.
Boltha B.V.
Solanum lycopersicum L. · Tomato
Moshe Zalsman
Cucumis melo L. · Melon
Henrikh IUst
Allium cepa L. · Onion
Zuhair Bibi
Brassica oleracea L. (White Cabbage Group) · White cabbage
Aleksieiev IUrii Borysovych, Sudenko Vasyl` Hryhorovych, Patsuriia Dzheneri Volodymyrovych, Monakhov Hryhorii Fedorovych, Kriuchkov Anatolii Vasyl`ovych,
Cucumis sativus L. · Cucumber
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
Raphanus sativus L. · Radish
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
Allium cepa L. · Onion
Ger Bimsdeboer
Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy
Eveleens, J.L.
Clematis L. · Clematis
Uno Kivistik, Aili Kivistik
Brassica oleracea L. (White Cabbage Group) · White cabbage
Gerard Balder
Raphanus sativus L. var. sativus · Radish
Herrit Vlaar, Lipskyi Volodymyr Volodymyrovych,