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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.

Turgenevka

Active

Prunus cerasus L. · Sour cherry

VNII SELEKCZII PLODOVYX KULTUR

EE
4 records

Trismart

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

PL
4 records

Tytanika

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

PL
6 records

Tooma

Active

Trifolium repens L. · White clover

Mart Jaagus 80%, Valve Smoljakova 10%, Evald Raudsepp 10%

EE
4 records

Triplex

Active

Festuca rubra L. · Red fescue

DEUTSCHE SAATVEREDELUNG AG

DE
4 records

Tobias

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau GmbH & Co.KG

AT
4 records

TURUNChUK

Active

Triticum aestivum L. · Bread wheat

LYFENKO SAVELIJ FILIPPOVICh / ERINYaK NIKOLAJ IVANOVICh / FEDChENKO VLADIMIR PAVLOVICh / NARGAN TAT'YaNA PAVLOVNA / DOROFEEVA ZINAIDA DMITRIEVNA / RODENKO GALINA ANATOL'EVNA / BREDINSKAYa NADEZhDA STEPANOVNA / D'YaChENKO NADEZhDA EGOROVNA

UA
5 records

Tina

Active

Daboecia cantabrica (Huds.) K. Koch · Connemara heather

Johannes van Leuven

DE
3 records

Turbo

Active

Hordeum vulgare L. · Barley

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

PL
4 records

Tibbee

Active

Trifolium incarnatum L. · Crimson clover

Delta and Pine Land Company

IT
3 records

TetraGain

Active

Lolium perenne L. · Perennial ryegrass

PURE SEED TESTING

IT
3 records

Trio

Active

Trifolium pratense L. · Red clover

NOVOSELOV MIHAIL YuR'EVICh / TUMASOVA MARGARITA IVANOVNA / SVETLAKOVA VALENTINA YaKOVLEVNA / NIKIFOROVA EKATERINA VASIL'EVNA / KALININ ALEKSANDR IVANOVICh / GRIPAS' MARIYa NIKOLAEVNA

UA
5 records

Tidone

Active

Hordeum vulgare L. · Barley

CREA-CENTRO DI RICERCA INGEGNERIA E TRASFORMAZIONI AGROALIMENTARI (CREA-IT-RM)

IT
4 records

Tanshei

Active

Rosa L. · Rose

HANS JURGEN EVERS (T)

DE
3 records

Tanellelog

Terminated

Rosa L. · Rose

Rosen Tantau KG

DE
3 records

Tajfun

Active

Hordeum vulgare L. · Barley

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

PL
4 records

TAN98352

Active

Rosa L. · Rose

Rosen-Tantau Mathias Tantau Nachfolger

PL
3 records

SZS Flavoury

Active

Lolium perenne L. · Perennial ryegrass

Christof Böhm in Fa. Saatzucht Steinach GmbH und Co KG

DE
4 records

Terka

Active

Festuca rubra L. · Red fescue

Oseva Uni a.s., CZ

CZ
4 records

Sweet Dreams

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :HBA B.V.

FR
3 records

Sweet Dreams

Protection expired

Lavatera L. · Tree mallow

Lommerse, Jan

NL
3 records

SW Columba

Protection expired

Festuca rubra L. · Red fescue

Dr. Peder Weibull c/o Lantmännen SW Seed AB

DE
4 records

TAN97123

Active

Rosa L. · Rose

Hans-Juergen Evers

DE
3 records

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