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.
Vaccinium corymbosum L. · Highbush blueberry
James F. Hancock (US)
Rosa L. · Rose
David Austin
Rosa L. · Rose
David J.C.Austin
Lilium L. · Lily
PIETER JAN KOS
Vitis L. · Grapevine
SUN WORLD INTERNATIONAL
Rosa L. · Rose
Poulsen Roser A/S
Vitis vinifera L. · Common grape vine
David W. Cain, PhD.
Carex oshimensis Nakai · Oshima sedge
Patrick Fitzgerald, Fitzgerald Nurseries
Carex oshimensis Nakai · Oshima sedge
Patrick Fitzgerald, Fitzgerald Nurseries
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
DAVID JC AUSTIN
Hordeum vulgare L. · Barley
Limagrain Europe S.A.S. (FR)
Pisum sativum L. · Pea
Florimond Desprez Veuve et Fils, FR
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus var. napus · Rapeseed
Syngenta Participations AG
Lolium perenne L. · Perennial ryegrass
VIJN| R. Vijn c/o Cebeco Seeds B.V.
Triticum aestivum L. · Bread wheat
Rainer Bouze
Triticum aestivum L. · Bread wheat
STRUBE GMBH&CO.KG