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.

Poulpal102

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

Poulpah123

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

PEWZ0001

Terminated

Penstemon Schmidel. · Beard Tongue

Syngenta Crop Protection AG

2 records

Orange Alf

Active

Berberis thunbergii DC. · Japanese barberry

Ralph Matheus Hoof

2 records

Peter Cottontail

Active

Achillea ptarmica L.

Hansen Hans A

2 records

Obelisk

Active

Prunus laurocerasus L. · Cherry laurel

Bernd Steinegger

3 records

Obelisk

Active

Fargesia murielae x Fargesia nitida

Johan Leendert Verweij

2 records

Novcorcar

Active

Coreopsis verticillata L. · Whorled tickseed

MICHAEL S DOBRES

3 records

Perfect Day

Active

Astilbe x arendsii H. Junge · Arends astilbe

Verduin Harrie

2 records

Novara

Active

Gladiolus L. · Gladiolus

Testcentrum voor Siergewassen B.V.

2 records

Poulcas066

Active

Rosa L. · Rose

Poulsen Roser A/S

2 records

Poulbero

Terminated

Rosa L. · Rose

Poulsen Roser A/S

2 records

POULAC011

Terminated

Rosa L. · Rose

Poulsen Roser A/S

2 records

Palms Place

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Panroue

Active

Philotheca myoporoides · Long leaf wax flower

Roué Pépinières S.A.R.L.

2 records

Paint the Town Red

Protection expired

Dianthus L. · Carnation

Hansen Hans A

2 records

Pink Heaven

Terminated

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

NC2016 2

Active

Cercis canadensis L. · Eastern redbud

North Carolina State Universisty

2 records

OVER2021

Active

Sesleria heufleriana Schur

Poul Petersen

2 records

Orlovskij Pioner

Active

Malus domestica (Suckow) Borkh. · Apple

SEDOV EVGENIJ NIKOLAEVICh / SEROVA ZOYa MIHAJLOVNA / ZhDANOV VLADILEN VASIL'EVICh / HABAROV YuRIJ IVANOVICh

2 records

Osiris Café Dark

Active

Ligularia dentata (A. Gray) H. Hara

Les Jardins Osiris

2 records

Pink Lady

Active

Phlox paniculata L. · Garden phlox

Verschoor Jan|Haarlem 2015 CS, NL

2 records

Piet Möhlen

Active

Gladiolus L. · Gladiolus

Coöperatieve Kwekersvereniging "For Ever" U.A.

2 records

Nanping

Active

Hydrangea L. · Hydrangea

KONINKLIJKE HANDELSKWEKERIJ

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.