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.

Destino Orange

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

2 records

Evipo035

Active

Clematis L. · Clematis

Poulsen Roser A/S^^^Raymond J. Evison Ltd.

2 records

Elisa

Active

Calluna vulgaris (L.) Hull · Common heather

Kurt Kramer

2 records

EVIPO023

Active

Clematis L. · Clematis

Poulsen Roser A/S^^^Raymond J. Evison Ltd.

2 records

Delphis Hollands Glorie

Terminated

Delphinium elatum L. · Alpine delphinium

Firma Kwekerij Delphi V.O.F.

2 records

Eleganza

Active

Zantedeschia Spreng. · Arum-lily

Sande B.V.

2 records

CLEMINOV27

Active

Clematis L. · Clematis

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Saphinov S.N.C.

2 records

Eveline

Active

Veronica L. · Speedwell

OUDSHOORN A.A.M.

2 records

EG1101

Active

Panicum virgatum L. · Switchgrass

University of Georgia Research Foundation

2 records

Edvin

Active

Hedera helix L. · Common ivy

Tomas Lagerström

2 records

Christmas Candy

Active

Hosta Tratt. · Hosta

Vitro Westland B.V.

2 records

ET EPB 716

Active

Helleborus orientalis x Helleborus x ericsmithii

Eternal Plant Boijl B.V.

2 records

Estelle

Active

Trifolium repens L. · White clover

Bent Juhl Jensen

2 records

Essential

Active

Gladiolus L. · Gladiolus

Coöperatieve Kwekersvereniging "For Ever" U.A.

2 records

DWAgHyb21

Application submitted

Agapanthus L'Hér. · Lily of the Nile

DE WET PLANT BREEDERS (PTY) LTD

2 records

Captain Lido

Active

Zantedeschia Spreng. · Arum-lily

Kapiteyn Breeding B.V.

2 records

Chewpan

Protection expired

Rosa L. · Rose

WARNERS ROSES

2 records

Duftkissen

Active

Thymus L. · Thyme

STINGLHAMMER JOSEF

2 records

Cherry Kiss

Active

Zantedeschia Spreng. · Arum-lily

Bram Breugem

2 records

Darlido

Active

Hydrangea L. · Hydrangea

Darthuizer Boomkwekerijen B.V.

2 records

Centennial Gold

Active

Rhododendron L. · Azalea

BOOMTEELTPRAKTIJKONDERZOEK

2 records

Camaieu d'ete

Active

Lagerstroemia indica L. · Crape myrtle

Lagerstroemia S.A.R.L.

2 records

Elizabeth Ann

Active

Geranium maculatum L. · Spotted geranium

Tyssowski Carol / Tyssowski Carol

2 records

Eline

Active

Hylotelephium telephium (L.) H. Ohba · Orpine

Jan Hendrik Jacob Dijkstra

2 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.