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.
Festuca arundinacea Schreb. · Tall fescue
Steve Reid
Festuca ovina L. · Sheep's fescue
DLF Seeds A/S
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Rosa L. · Rose
Rosen Tantau KG
Poa pratensis L. · Kentucky bluegrass
FORSCHUNGSANSTALT AGROSCOPE RECKENHOLZ
Vitis vinifera L. · Common grape vine
Sun World International, Inc (US)
Hordeum vulgare L. · Barley
Claus Einfeldt
Agrostis stolonifera L. · Creeping bentgrass
Loft's Seed Inc. (US)
Medicago sativa L. · Alfalfa
Florimond Desprez Veuve et Fils, FR
Festuca pratensis Huds. · Meadow fescue
Landbruks- og matdepartementet, N - 0030 Oslo
Dactylis glomerata L. · Cocksfoot
RAGT semences
Medicago sativa L. · Alfalfa
Verneuil Holding (FR)/Semunion Sarl (FR)
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
POULSEN ROSER A/S
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Rosa L. · Rose
Poulsen Roser A/S
Phleum pratense L. · Timothy grass
Freudenberger, D
Festuca pratensis Huds. · Meadow fescue
Feldsaaten Freudenberger GmbH & Co. KG., D-47800 Krefeld
Triticum aestivum L. · Bread wheat
Institut za ratarstvo i povrtarstvo, Novi Sad
Festuca arundinacea Schreb. · Tall fescue
Beat Boller (CH)
Lolium perenne L. · Perennial ryegrass
Joost Baert
Festuca arundinacea Schreb. · Tall fescue
UNIVERSITY OF GENT
Triticum aestivum L. · Bread wheat
PHILIPPE MOMONT