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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.

White Magic

Active

Clematis L. · Clematis

De Wit V.O.F.

2 records

VG001

Application submitted

Cosmos atrosanguineus (Hook.) Voss · Chocolate cosmos

VALIN GENETICS

2 records

TOBUDSOPIN

Active

Buddleja davidii Franch. · Butterfly bush

CHARLES VALIN

2 records

Superstar

Active

Astrantia major L. · Masterwort

Ferdinandushof V.O.F.

2 records

TANSOL

Active

Hibiscus moscheutos L. · Crimson-eyed rose mallow

Alain Tan

2 records

Verscarmine

Active

Astilbe Buch.-Ham. ex D. Don · False goat's beard

A. VERSCHOOR HORTICULTURE IMPORT-EXPORT B.V

2 records

Verona

Active

Calluna vulgaris (L.) Hull · Common heather

Edens Creations B.V.

2 records

Uhlsylt

Active

Rosa L. · Rose

UHL JÜRGEN

2 records

VERBEAUTY2

Active

Helleborus niger L. · Christmas rose

Verboom Johannes

3 records

Vera White

Active

Bougainvillea Comm. ex Juss. · Bougainvillea

RijnPlant B.V.

2 records

TAN98130

Active

Rosa L. · Rose

Hans-Juergen Evers

2 records

WALHIRHAP

Active

Hybrids between Hibiscus paramutabilis and Hibiscus syriacus

Walberton Plants LTD

2 records

TAN97103

Active

Rosa L. · Rose

Rosen Tantau KG

2 records

TAN02226

Active

Rosa L. · Rose

CHRISTIAN EVERS

2 records

TAN00847

Active

Rosa L. · Rose

Hans-Juergen Evers

2 records

Sundew

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

TNPENDB

Active

Penstemon digitalis Nutt. ex Sims

HARINI KORLIPARA

2 records

Temptation

Active

Skimmia japonica Thunb. · Japanese skimmia

Praktijkonderzoek Plant en Omgeving B.V.

2 records

Uhlarium

Active

Rosa L. · Rose

UHL JÜRGEN

2 records

Sweet Zanica

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Sweet Sugar

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

TURCAL211

Active

Alstroemeria L. · Alstroemeria

Vele Mathieu

2 records

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