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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.

Las Vegas

Active

Calluna vulgaris (L.) Hull · Common heather

Edens Creations B.V.

2 records

Kolmamoc

Active

Hypericum x inodorum Mill. · Tall tutsan

Floribreed V.O.F.

2 records

Kerbelgoldie

Active

Primula vulgaris Huds. · Primrose

David William Kerley, Timothy Edward Kerley, Sarah Elisabeth Kerley, Priscilla Grace Kerley

2 records

Kolmagisun

Active

Rosa L. · Rose

KOLSTER RIJNEVELD

2 records

Kelso

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Kolmadadre

Application submitted

Ilex verticillata (L.) A. Gray · Winterberry

Peter Rudolf Kolster

2 records

INSILSPARO

Active

Silene asterias x Silene noctiflora

Silvia Hofmann

2 records

JWW10

Active

Enkianthus campanulatus (Miq.) G. Nicholson

Jan-Willem Wezelenburg Boskoop B.V.

2 records

KLEDP16239

Active

Dianthus caryophyllus L. · Carnation

Nils Klemm^^^Lena Thiede

2 records

Korquin

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

Julisa

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Jean-Paul Davasse

2 records

KORpanimar

Active

Rosa L. · Rose

WILHELM-ALEXANDER KORDES

2 records

JS Dance With Me

Active

Cenchrus orientalis (Rich.) Morrone · Oriental pennisetum

Spruyt Select CommV

2 records

Korengir

Terminated

Rosa L. · Rose

Wilhelm Kordes

2 records

LEUZ0005

Active

Leucanthemum maximum (Ramond) DC. · Maximum daisy

Syngenta Participations AG

2 records

IFHESBS

Active

Heuchera L. · Coral Flower

Spil Glenn

2 records

Klebelli

Terminated

Pelargonium L'Hér. ex Ait. · Geranium

Siegfried Klemm

2 records

IFANFRAP

Active

Anemone hupehensis Lemoine · Japanese anemone

Spil Glenn

2 records

ICOPRINS11

Active

Ilex crenata Thunb. · Japanese holly

Plant Select N.V.

2 records

LAZOST1207

Terminated

Osteospermum L. x Dimorphotheca Vaill. ex Moench

Johannes Nebelmeir

2 records

HUIBL

Active

Exochorda racemosa (Lindl.) Rehder

Huisman Boomkwekerij B.V.

2 records

Hot Summer

Active

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

Marco van Noort Vaste Planten V.O.F.

2 records

Hot Rod

Active

Panicum virgatum L. · Switchgrass

Paul David Babikow

2 records

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