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.
Phleum pratense L. · Timothy grass
Lietuvos agrarinių ir miškų mokslų centras
Malus Mill. · Apple
J. Cummins, H. Aldwinckle, T. Robinson, G. Fazio
Malus Mill. · Apple
Information not available - Contact NL authorities
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Zelder BV (NL)
Hydrangea anomala D. Don subsp. petiolaris (Siebold & Zucc.) E. M. McClint. · Climbing hydrangea
Information regarding the breeder received in the contribution to CPVO :Benarcik D.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Malopolska Hodowla Roslin Spolka z o.o.
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Vitis vinifera L. · Common grape vine
Miroslav Ivanov, Vasil Valchev, Zdravko Nakov
Prunus persica (L.) Batsch · Peach
Arsene Maillard Laurence Maillard
Malus pumila L. Mill. · Paradise apple
Cornell Research Foundation Inc (US)
Prunus domestica L. · European plum
Prunus cerasus L. · Sour cherry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Tulipa L. · Tulip
Vertuco B.V.
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Clematis L. · Clematis
Szczepan Marczyński
Vicia faba L. · Broad bean
De Bolster B.V.
Hordeum vulgare L. · Barley
Hoiman Serhii Volodymyrovych, Sheremet Oleksandr Martynovych, Lehkun Ihor Borysovych, Linchevskyi Anatolii Adamovych,
Lilium L. · Lily
De Jong Beheer B.V.
Rhododendron L. · Azalea
HACHMANN BAUMSCHULE
Hordeum vulgare L. · Barley
Agri-Obtentions S.A.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :HBA B.V.
Brassica napus var. napus · Rapeseed
SVENSK HANS
Brassica napus L. · Rapeseed
Euralis Semences
Allium cepa L. var. cepa · Onion
Kees Broersen Zaden