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.
Agrostis capillaris L. · Common bent
DLF Seeds A/S, Dansk Planteforedling (DK)
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S, 4000 Roskilde
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Medicago sativa L. · Alfalfa
Vaclav Stradal
Medicago sativa L. · Alfalfa
Vincent Beguier
Brassica napus var. napus · Rapeseed
Patrice Jeanson
Lolium perenne L. · Perennial ryegrass
KWS SAAT SE and CO KGAA
Lolium perenne L. · Perennial ryegrass
M. Francois Charpentier c/o REGA
Festuca arundinacea Schreb. · Tall fescue
KWS SAAT SE and CO KGAA
Trifolium repens L. · White clover
Forschungsanstalt Agroscope Reckenholz-Tänikon ART
Lolium perenne L. · Perennial ryegrass
Jan Wojciech Kaszuba / Anna Ostrowska
Festuca pratensis Huds. · Meadow fescue
DSV/Semences Cargill (DE)
Festuca arundinacea Schreb. · Tall fescue
NIELS ROULUND
Pisum sativum L. · Pea
Philippe Lonnet
Festuca rubra L. · Red fescue
CANADIAN DEPT OF AGRICULTURE
Brassica napus var. napus · Rapeseed
Thierry Ronsin
Lolium perenne L. · Perennial ryegrass
Steve Reid
Festuca pratensis Huds. · Meadow fescue
Forschungsanstalt Agroscope Reckenholz-Tänikon ART
Rosa L. · Rose
Hans-Jürgen Evers c/o Rosen Tantau KG
Poa pratensis L. · Kentucky bluegrass
STELLING DIETER / SCHUMANN CORD
Dactylis glomerata L. · Cocksfoot
Plant Breeding International Cambridge Ltd (GB)
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK
Poa trivialis L. · Rough bluegrass
Niels Christian Nielsen
Lolium perenne L. · Perennial ryegrass
SCHUMANN CORD / STELLING DIETER