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.
Prunus avium (L.) L. · Sweet cherry
HANNA SCHMIDT|WERNER GRUPPE
Lolium perenne L. · Perennial ryegrass
Rutgers, The State University of New Jersey and Pickseed West, Inc.
Lolium multiflorum Lam. · Italian ryegrass
University of Florida
Triticum aestivum L. · Bread wheat
Nickerson International Research SNC (FR)
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Vinson Peter Edward|Hernhill Faversham Kent, GB / Warren Simon Peter|Hernhill Faversham Kent, GB
Prunus L. · Plum
RESPUBLIKANSKOE NAUCHNO-PROIZVODSTVENNOE DOCHERNEE UNITARNOE PREDPRITIE «INSTITUT PLODOVODSTVA»
Rosa L. · Rose
Ralf MOORE (US)
Agrostis stolonifera L. · Creeping bentgrass
LOFTS SEED INC
Hydrangea paniculata Siebold · Panicled hydrangea
Van Huylenbroeck Johan|Melle, BE
Prunus tomentosa thunb x P. cerasifera
Krymsk Experiment Breeding Station
Dianthus x allwoodii hort. · Allwood pink
Whetman Pinks
Heuchera L. · Coral Flower
The Behnke Nurseries Co.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Michael Dirr
Dianthus x allwoodii hort. · Allwood pink
Whetman Pinks
Rosa L. · Rose
Hans Jurgen Evers
Triticum aestivum L. · Bread wheat
Borislav Kobiljski
Pisum sativum L. · Pea
Institute of field and vegetable crops - Novi Sad (SR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Danko Hodowla Roslin Sp.z.o.o.
Prunus persica (L.) Batsch · Peach
ZAIGER FLOYD
Festuca rubra L. · Red fescue
NORTHRUP KING Co (US)
Secale cereale L. · Rye
KWS Lochow
Brassica napus var. napus · Rapeseed
PIONEER OVERSEAS CORPORATION
Prunus persica (L.) Batsch · Peach
Swim, Herbert C|Ontario, CA
Lolium perenne L. · Perennial ryegrass
DUMON AGRO