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.

DOWNOLY

Active

Lavandula x intermedia Emeric ex Loisel. · Lavandin

Downderry Nursery Ltd.

2 records

Fanfin

Active

Ajuga reptans x Ajuga tenorei

Elsworth Kelly

2 records

Exstbolwi

Active

Skimmia japonica Thunb. · Japanese skimmia

Albert L.C. Bolwijn

2 records

Double Dream

Active

Hippeastrum Herb. · Amaryllis

Willem M.W. van Velden

2 records

COSEH 5400

Active

Helleborus L. · Christmas Rose

Josef Heuger

2 records

Coseh 2020

Active

Helleborus niger L. · Christmas rose

Josef Heuger

2 records

Evita

Active

Fuchsia L. · Fuchsia

Fred Hendriks

2 records

EVIPO082

Active

Clematis L. · Clematis

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

2 records

Dolkis

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Marie-France Doll

2 records

Dolgip

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Marie-France Doll

2 records

EVIPO021

Active

Clematis L. · Clematis

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

2 records

Cleopatra

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

ARIE BLOM

2 records

Everest

Terminated

Chrysanthemum L. · Chrysanthemum

Cleangro Ltd

2 records

Eva Gold

Active

Erica x darleyensis Bean · Darley heath

Pépinières Roué-Cadiou S.C.E.A.

2 records

COSEH 4600

Active

Helleborus L. · Christmas Rose

Josef Heuger

2 records

Fantasia

Terminated

Hydrangea L. · Hydrangea

W. G. van der Jagt

2 records

Erik

Active

Sorbus L. · Mountain ash

Tomas Lagerström

2 records

ERFZ0006

Active

Erysimum linifolium (Pers.) J. Gay · Wallflower

Syngenta Participations AG

2 records

EP TRITI

Active

Tripterygium regelii Sprague & Takeda

Tomas Lagerström

2 records

DICHIRAP

Application submitted

Rosa L. · Rose

MR COLIN DICKSON

2 records

EP ACERA

Active

Acer platanoides L. · Norway maple

Claerens Jacobsen

2 records

EVIPO080

Active

Clematis L. · Clematis

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

2 records

Elodie

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Devon Octavia

Active

Dianthus L. · Carnation

Whetman Plants International Limited

2 records

1 2 ... 223 224 225 226 227 228 229 ... 501 502 Next

Jump to page 72 126 143 215 216 236 287 326 359 430

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

All terms →

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.