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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

Found in these crops

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.

Hosta Tratt. · Hosta

Hendrik Jan van den Top

2 records

Heuchera L. · Coral Flower

Scheys Diederik Alexander Maria

2 records

Dahlia Cav. · Dahlia

Keith R.W. Hammett

2 records

Prunus salicina Lindl. · Japanese plum

Elvio Bellini^^^Valter Nencetti

3 records

Lavandula angustifolia Mill. · English lavender

P.P.M. van der Salm Holding B.V., L. Koning Beheer B.V.

2 records

Eyeliner

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Hachneg

Active

Rhododendron L. · Azalea

Holger Hachmann

2 records

EVIPO110

Active

Clematis L. · Clematis

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

2 records

EVIPO090

Active

Clematis L. · Clematis

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

2 records

EVIPO022

Active

Clematis L. · Clematis

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

2 records

Giada

Active

Argyranthemum frutescens (L.) Sch. Bip. · Marguerite daisy

Pesce Sergio (Impresa Individuale)

2 records

EVIPO018

Active

Clematis L. · Clematis

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

2 records

Hybrids between Clematis patens C. Morren & Decne. and Clematis viticella L.

RAYMOND J. EVISON

2 records

Diplacus aurantiacus (Curtis) Jeps. · Bush monkeyflower

Trees Scott C

2 records

Gernic

Protection expired

Geranium L. · Crane's Bill

NICHOLSON KEVIN

3 records

Carex oshimensis Nakai · Oshima sedge

Patrick Fitzgerald

2 records

Osteospermum L. x Dimorphotheca Vaill. ex Moench

Decock Youngplants S.P.R.L.

2 records

Ditomfav

Active

Phlox paniculata L. · Garden phlox

Tonies Hubertus Josephus|Noordwijkerhout, NL

2 records

Geranium L. · Crane's Bill

Kabbes Brian

2 records

ES11

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

TIMOTHY D WOOD

2 records

ERFZ0007

Active

Erysimum linifolium (Pers.) J. Gay · Wallflower

Syngenta Participations AG

2 records

ERFZ0001

Active

Erysimum linifolium (Pers.) J. Gay · Wallflower

Syngenta Crop Protection AG

3 records

Engelina

Active

Leucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy

Irene Tibbenham

2 records

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