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.
Rosa L. · Rose
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Rosa L. · Rose
HANS JURGEN EVERS (T)
Rosa L. · Rose
HANS JURGEN EVERS (T)
Triticum aestivum L. · Bread wheat
Limagrain Europe, FR
Lolium perenne L. · Perennial ryegrass
DLF-Seeds A/S
Rosa L. · Rose
SNC Meilland et Cie
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Lolium perenne L. · Perennial ryegrass
Mommersteeg International BV (NL)
Secale cereale L. · Rye
Peer Wilde
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Triticum aestivum L. · Bread wheat
Strube Research GmbH & Co. KG, D- 38387 Sollingen
Rosa L. · Rose
SNC Meilland et Cie
Rosa L. · Rose
Wilhelm Sparrieshoop
x Triticosecale Wittm. ex A. Camus · Triticale
DANKO HODOWLA| "DANKO" Hodowla Roslin Sp. z o.o.
Triticum aestivum L. · Bread wheat
Saatzucht Donau, A
Rosa L. · Rose
ZURENS RIAN
Medicago sativa L. · Alfalfa
VEB Saat und Pflanzgut (DE)
Poa pratensis L. · Kentucky bluegrass
Theodorus P.M. op den Kamp
Malus Mill. · Apple
Tobutt, Kenneth R.|Kent, England
Rosa L. · Rose
Meilland, Alain A.|Antibes, France
Trifolium repens L. · White clover
Oseva
Poa pratensis L. · Kentucky bluegrass
Francois van der Hee
Trifolium repens L. · White clover
Heinrich Busch^^^FEUERSTEIN ULF
Malus Mill. · Apple
Morren-De Coster, J.