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.
Dianthus L. · Carnation
Flavio Michele Sapia (IT)
Rosa L. · Rose
Poulsen Roser A/S
Brassica napus L. · Rapeseed
Euralis Semences, Mondonville FR
Brassica napus L. · Rapeseed
Euralis Semences FR
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Pepinieres et Roseraies Georges Delbard| FR
Brassica napus L. · Rapeseed
NILSSON ANDERS
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
Plant Breeding International Cambridge Ltd (GB)
Rosa L. · Rose
ODENDAHL| Franz Josef Odendahl (Rosenhof Odendahl)
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG
Brassica napus var. napus · Rapeseed
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Brassica napus L. · Rapeseed
Lidea France SAS, Lescar FR
Dactylis glomerata L. · Cocksfoot
Euro Grass B.V. (NL)
x Festulolium Aschers. et Graebn. · Festulolium
Matt Herb
Allium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Malus domestica (Suckow) Borkh. · Apple
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Tulipa L. · Tulip
G. & K. Reus V.O.F.
Dactylis glomerata L. · Cocksfoot
GIE GRASS (FR)
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Prunus persica (L.) Batsch · Peach
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Triticum aestivum L. · Bread wheat
Dr.Reiner Bothe, Dr.Erhard Ebmeyer,
Prunus cerasus L. · Sour cherry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Allium porrum L. · Leek
Domaine Public (FR)