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.

COSEH 4500

Active

Helleborus L. · Christmas Rose

Josef Heuger

1 record

BRS1

Active

Weigela florida (Bunge) A. DC. · Old fashioned weigela

Bronislaw Szmit

1 record

Color Dream

Terminated

Heuchera L. · Coral Flower

Kwekerij en Tuincentrum Van den Top

1 record

DOW3

Terminated

Lavandula angustifolia Mill. · English lavender

PETER CARTER

1 record

Bokomamfu

Application submitted

Hydrangea paniculata Siebold · Panicled hydrangea

Boot & Co. Boomkwekerijen B.V.^^^Kolster Holding B.V.

1 record

Bodalan

Active

Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven

Yang Yu-yong

1 record

Cojape 01

Active

Bistorta amplexicaulis (D. Don) Greene · Red bistort

Coen Jansen

1 record

DICZ0002

Terminated

Dianthus plumarius L. · Garden pink

Syngenta Crop Protection AG

1 record

Bra Val

Active

Gladiolus L. · Gladiolus

Coöperatieve Kwekersvereniging "For Ever" U.A.

1 record

Branbeach

Terminated

Chrysanthemum L. · Chrysanthemum

Hubert Brandkamp

1 record

Cido

Withdrawn

Chaenomeles Lindl. · Flowering quince

TICS A

1 record

Bozchicfas

Active

Rosa L. · Rose

Pheno Geno Roses B.V.

1 record

Claudy

Active

Aconitum carmichaelii Debeaux · Japanese aconite

Inspiration Plant C.V.

1 record

Delrosroucrem

Active

Rosa L. · Rose

Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.

1 record

Black Beauty

Terminated

Geranium L. · Crane's Bill

Nori Pope

1 record

Delice Aquamarine

Active

Salvia microphylla Kunth · Baby sage

Jan De Busschere

1 record

Boom Chocolatta

Active

Geranium clarkei Yeo x Geranium pratense L.

Hans A. Hansen

1 record

Chocolate Shogun

Withdrawn

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

NAGASAKI TERUHISA

1 record

Ceres

Terminated

Lilium L. · Lily

Licentie Instituut Nederland (L.I.N.) C.V.

2 records

DIWIBRU02

Active

Diervilla x splendens (Carrière) G. Kirchn.

William de Bruijn

1 record

Dark Jack

Withdrawn

Sedum L. · Ice Plant

Jerry van der Kolk

1 record

Delparocyane

Application submitted

Rosa L. · Rose

Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.

1 record

Blue Octopus

Terminated

Campanula L. · Bellflower

Joseph Sharman

1 record

Beauty Star

Withdrawn

Calluna vulgaris (L.) Hull · Common heather

Gerd Canders^^^Franz Maassen

1 record

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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.