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.
Berberis L. · Barberry
Alieksieienko Oksana Volodymyrivna, Vol`s`ka IUliana Oleksandrivna,
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Lilium L. · Lily
Laan Flora Facilities B.V.
Taxus x media Rehder · Anglo-Japanese yew
ACROCONA Szkółki Drzew i Krzewów Ozdobnych Joanna Szaniawska
Rosa L. · Rose
Iuroaea Gheorghe
Pinus nigra J. F. Arnold · European black pine
Nikodem Nowaczyk
Malus domestica (Suckow) Borkh. · Apple
Toth Magdolna / Bodor Peter / Kovacs Szilvia
Lilium L. · Lily
De Jong Beheer B.V.
Triticum aestivum L. · Bread wheat
Pravdziva Iryna Volodymyrivna, Mukha Tetiana Ivanivna, Demydov Oleksandr Anatoliiovych, Dubovyk Nataliia Serhiivna, Kochmarskyi Valentyn Serhiiovych, Kyrylenko Vira Viktorivna, Zamlila Nina Petrivna, Volohdina Halyna Borysivna, Humeniuk Oleksandr Volodymy
Rosa L. · Rose
Verschuren Rozen B.V.
Secale cereale L. · Rye
Symonenko Nina Viktorivna, Levchenko Olha Serhiivna, Kovalchuk Serhii Oleksandrovych, Holyk Liubov Mykolaivna, Starychenko Vasyl Mykolaiovych, Huba Iryna Ivanivna,
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Triticum aestivum L. subsp. aestivum · Bread wheat
BREUN GDBR| Saatzucht Josef Breun GdbR
Lilium L. · Lily
World Breeding B.V
Malus domestica (Suckow) Borkh. · Apple
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Lilium L. · Lily
Mak Breeding Rights B.V.
Trifolium repens L. · White clover
Poznanska Hodowla Roslin Sp. z o.o
Solanum lycopersicum L. · Tomato
Prosem (FR)
Brassica napus var. napus · Rapeseed
Semences Cargill SA (FR)/Deutsche Saatveredelung AG - DSV (DE)
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Viburnum L. · Viburnum
Nilsson, Bo/Källgren, Sören
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
"Grupa ""Jagodnik"""
Rhododendron L. · Azalea
Gospodarstwo Szkółkarskie Jan Ciepłucha
Tulipa L. · Tulip
Beerepoot B.V.