Variety traits

Winter hardiness

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.

Sources10

Breakdown by crop

Winter Hardiness of Roses 555 Winter hardiness of common wheat 220 Winter hardiness of apple trees 188 Winter Hardiness — Hydrangea macrophylla 187 Pear Winter Hardiness 123 Winter hardiness — perennial ryegrass 120 Winter Hardiness of Lily 91 Winter hardiness of winter rapeseed 81 Peach winter hardiness 71 Plum Winter Hardiness 65 Winter Hardiness of Clematis 61 Grapevine Winter Hardiness 56 Winter hardiness of winter barley 56 Winter hardiness — garden strawberry 52 Winter hardiness of sweet cherry 48 Tulip winter hardiness 42 Heuchera winter hardiness 40 Winter Hardiness of Alfalfa 39 Chrysanthemum winter hardiness 39 Winter hardiness of triticale 36 Winter Hardiness of Apple 36 Winter hardiness of Hydrangea serrata 36 Grapevine Winter Hardiness 35 Winter hardiness of apricot 35

Found in these crops

Rose 1 062 Apple 843 Bread wheat 657 Lily 410 European pear 348 Bigleaf hydrangea 315 Peach 264 Rapeseed 258 European plum 245 Grapevine 229 Perennial ryegrass 224 Sweet cherry 223

Varieties that feature this in their description

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.

Webfoot

Protection expired

Medicago sativa L. · Alfalfa

Michigan State University

3 records

Whistler

Active

Pisum sativum L. · Pea

ProGene Plant Research LLC

3 records

Wallachia

Active

Paulownia fortunei (Seem.) Hemsl. x Paulownia tomentosa (Thunb.) Steud.

Lucie Smidova

3 records

WEKquaneze

Active

Rosa L. · Rose

Weeks Roses Inc (US)

3 records

Walhideli

Active

Hybrids between Hibiscus paramutabilis and Hibiscus syriacus

Walberton Plants Limited (GB)

3 records

Vivara

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Martinelli Alessio, Leis Michelangelo

5 records

Vista

Active

Trifolium michelianum Savi · Balansa clover

South Australian Research and Development Institut (AU)

3 records

White Robe

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Higaki H.

3 records

Whisky

Terminated

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht DE

4 records

Vihren

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

S. Tsvetkov, Tsv. Rachinska, A. Tsenov, V. Gotsova, I. Stoyanov, I. Iliev, R. Nadalenko

4 records

Vivita

Active

Vicia villosa Roth · Hairy vetch

DEUTSCHE SAATVEREDELUNG AG

5 records

Veronique

Active

Calluna vulgaris (L.) Hull · Common heather

H. C. Hoekert

3 records

Verlica

Active

Bromus sitchensis Trin. · Alaska brome

RAGT 2N S.A.S

4 records

Venus

Active

Calluna vulgaris (L.) Hull · Common heather

LEUVEN| Johannes van Leuven

3 records

VB Meduviai

Terminated

Onobrychis viciifolia Scop. · Common sainfoin

Lietuvos agrarinių ir miškų mokslų centro Vokės filialas

3 records

Wanda

Active

Festuca pratensis Huds. · Meadow fescue

Poznanska Hodowla Roslin Sp. z o.o

4 records

Walcheren Winter 3

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

SES Europe (BE)

3 records

VB Gojus

Terminated

Festuca rubra L. · Red fescue

Lietuvos agrarinių ir miškų mokslų centro Vokės filialas

3 records

Varis

Active

Phleum pratense L. · Timothy grass

P.Berzins, Sk.Bumane, v.Stesele

4 records

Vambo

Active

Secale cereale L. · Rye

Herbert Tuppits 95%, Hille Leesment 5%

4 records

Venecja

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

4 records

Venture

Active

Phalaris arundinacea L. · Reed canary grass

Research Seeds Inc.

4 records

Vikaras DS

Active

Triticum aestivum L. · Bread wheat

Lietuvos agrarinių ir miškų mokslų centras

4 records

Vaira

Active

Festuca pratensis Huds. · Meadow fescue

Latvijas Lauksaimniecibas universitate

4 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.