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.
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
WJG & JG, Hofstede
Brassica rapa L. subsp. campestris (L.) A. R. Clapham · Field mustard
Piet Lammers
Vitis L. · Grapevine
R.Gilg et Succ. SA (FR)
Rosa L. · Rose
R. HARKNESS & CO. LTD.
Hordeum vulgare L. · Barley
Stefan Streng^^^Katrin Dengler
Triticum aestivum L. · Bread wheat
Landwirtschaftliche Fachschule Edelhof Saatzucht
Pisum sativum L. · Pea
Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)
Festuca arundinacea Schreb. · Tall fescue
RAGT 2N S.A.S
Brassica napus var. napus · Rapeseed
Rustica Prograin Genetique SA (FR)
Brassica napus var. napus · Rapeseed
RAGT 2n, FR
Brassica napus var. napus · Rapeseed
Thomas Foubert
Lactuca sativa L. · Lettuce
VILMORIN, S.A.
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Lolium perenne L. · Perennial ryegrass
Nilsson, Bengt
Prunus cerasus L. · Sour cherry
Sagaplant AS, N-3812 Akkerhaugen
Hordeum vulgare L. · Barley
Landwirtschaftliche Fachschule Edelhof Saatzucht
Allium porrum L. · Leek
Domaine Public (FR)
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Phleum pratense L. · Timothy grass
ILVO Plant
Triticum aestivum L. · Bread wheat
Danko Hodowla Roslin Sp.z.o.o.
Lolium perenne L. · Perennial ryegrass
S. Nekrosas
Hordeum vulgare L. · Barley
Secobra, F
Lolium perenne L. · Perennial ryegrass
Carneau Freres SA (FR)