Variety traits
Winter hardiness is a complex indicator of a variety's ability to remain viable throughout the winter and early spring periods, including resistance to frost and other environmental stress factors.
Mentioned in descriptions 27 261 varieties reference book.
Winter hardiness is a complex plant characteristic that includes resistance to freezing, smothering, waterlogging, frost heaving, and winter desiccation. Unlike frost resistance, which is limited to tolerance of low temperatures, winter hardiness takes into account the entire spectrum of adverse effects that lead to plant death or damage during the cold period.
The winter hardiness of a variety is evaluated using methods of field assessment of crop conditions after winter, employing scoring scales, as well as laboratory studies. The latter include direct freezing of plant monoliths, biochemical analyses of sugar accumulation, verification of the viability of the tillering node, and the use of genetic markers to determine resistance.
The level of winter hardiness depends on the genetic potential of the variety, the plant's ability to harden, agronomic cultivation practices, and the microclimate characteristics of a specific site. When choosing a variety, one should focus on regionalized forms, bearing in mind that the resistance indicator is relative and requires comparison with local standards and growing conditions.
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.
Petroselinum crispum (Mill.) Nym. ex A.W. Hill var. tuberosum (Bernh.) Mart Crov. · Hamburg parsley
TORSEED - Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa S.A.
Lilium L. · Lily
Laan Flora Facilities B.V.
Ribes uva-crispa L. · Gooseberry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Rhododendron L. · Azalea
Wilhelm Bruns (+)
Triticum aestivum L. · Bread wheat
Babenko Serhii Mykolaiovych, Teteruk Oleksii Volodymyrovych, Hal`chenko Nataliia Mykolaivna, Lazer Petro Nartsysovych, Nyzheholenko Viktor Mykhailovych, Naidonov Viktor Hryhorovych, Naid`onova Vira Opanasivna, Bazalii Valerii Vasyl`ovych,
Brassica napus var. napus · Rapeseed
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Vitis vinifera L. · Common grape vine
AKTIONSGEMEINSCHAFT| Aktionsgemeinschaft zur Erhaltung von Rebsorten e.V. im DLR Rheinhessen-Nahe-Hunsrueck
Paeonia L. · Peony
Roger F. Anderson
Phleum pratense L. · Timothy grass
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Lilium L. · Lily
De Jong Beheer B.V.
Rhododendron L. · Azalea
Erbe/Erbengemeinschaft Hans Hachmann
Pyrus communis L. · European pear
Opalko Ol`ha Anatoliivna, Opalko Anatolii Ivanovych, Zaplichko Fedora Onysymivna, Desiatov Anatolii Matviiovych, Kondratenko Petro Vasyl`ovych,
Rosa L. · Rose
ROSE BARNI (IT)
Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
No information of breeder available for this variety
Lilium L. · Lily
Mak Breeding Rights B.V.
Allium cepa L. · Onion
Karamert Metin
Carum carvi L. · Caraway
PLESCHER| Dr. Andreas Plescher c/o PHARMAPLANT Arznei- und Gewuerzpflanzen GmbH
Clematis L. · Clematis
Szczepan Marczyński
Triticum aestivum L. · Bread wheat
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Prunus avium (L.) L. · Sweet cherry
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Trifolium pratense L. · Red clover
Schernthaner Johann Bio-Bauernhof
Vitis vinifera L. · Common grape vine
UNIVERSITY OF CALIFORNIA (US)
Fragaria L. · Strawberry
Kopan Volodymyr Pavlovych, Kopan` Vira Mykolaivna,
Triticum aestivum L. · Bread wheat
Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych, Khomenko Svitlana Olehivna, Kyrylenko Vira Viktorivna, Marynka Svitlana Mykolaivna, Bershads`ka Liudmyla Petrivna, Basanets` Hanna Stepanivna, Holyk Liubov Mykolaivna, Dubovyi Volodymyr Ivanovyc