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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.

Cotton Candy

Withdrawn

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Joseph Gray

1 record

Chunky Purple

Active

Echinacea purpurea (L.) Moench · Purple coneflower

Marco van Noort Breeding B.V.

1 record

Diva

Terminated

Chrysanthemum L. · Chrysanthemum

Fides B.V.

1 record

CHEWALIBABA

Active

Rosa L. · Rose

Christopher Hugh Warner

1 record

Coral Sunset

Terminated

Delphinium L. · Larkspur

Nicolaas G. Wigchert

1 record

Coral Sea

Active

Heuchera L. · Coral Flower

Diederik Scheys

1 record

DICZ0003

Terminated

Dianthus plumarius L. · Garden pink

Syngenta Crop Protection AG

1 record

DICZ0004

Terminated

Dianthus plumarius L. · Garden pink

Syngenta Crop Protection AG

1 record

Diamond Edge

Withdrawn

Hylotelephium telephium (L.) H. Ohba · Orpine

Inspiration Plant C.V.

1 record

EVIGSY156

Application submitted

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

RAYMOND J. EVISON

1 record

Elda Pink

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

1 record

Delice Fiona

Withdrawn

Salvia microphylla Kunth · Baby sage

Jan De Busschere

1 record

Elbtal

Protection expired

Hydrangea L. · Hydrangea

CHRISTA HOFMANN

1 record

Delflouge

Application submitted

Rosa L. · Rose

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

1 record

Dektoshka Red

Terminated

Chrysanthemum L. · Chrysanthemum

Cornelis W. Dekker

1 record

ET LPN 802

Active

Lupinus L. · Lupine

Eternal Plant Boijl B.V.

1 record

Cherry Bubbles

Application submitted

Silene suecica x Silene viscaria

Seoha Plant Breeding Institute

1 record

Deep Purple

Active

Fargesia Franch.

Bamboo Giant Nederland B.V.

1 record

Cheops

Terminated

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

1 record

Charlotte

Withdrawn

Alstroemeria L. · Alstroemeria

Robert Adrian Goemans

1 record

Daydream

Terminated

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

HARINI KORLIPARA

1 record

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