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.

Dicquarrel

Terminated

Rosa L. · Rose

Dickson Nurseries Ltd

3 records

Duraton

Active

Allium porrum L. · Leek

NAPOLEONSWEG 152

4 records

Drunen

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Syngenta Seeds B.V.

3 records

Dotnuviai

Active

Trifolium repens L. · White clover

Lietuvos agrarinių ir miškų mokslų centras

3 records

Doni 52

Active

x Triticosecale Wittm. ex A. Camus · Triticale

V. Georgiev, T. Petrova, I. Iliev, V. Ivanova

4 records

Delstrimen

Active

Rosa L. · Rose

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

3 records

Delcoti

Active

Malus domestica (Suckow) Borkh. · Apple

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

6 records

DK Exprit

Terminated

Brassica napus var. napus · Rapeseed

Monsanto Agriculture France SAS (FR)

3 records

Discovery

Active

Iris L. · Iris

WENTINK H.J.^^^FA. DE GEUS - VRIEND

3 records

Crina

Active

Triticum aestivum L. · Bread wheat

SAULESCU NICOLAEITTU GHEORGHEITTU MARIANAMUSTATEA POMPILIUTIANU MIHAELAPETCU ELENA

3 records

Diament

Active

Lolium perenne L. · Perennial ryegrass

Danko Hodowla Roslin Sp.z.o.o.

4 records

Cumbia

Terminated

Hordeum vulgare L. · Barley

Strube J.Fr. ACKERMANN & CO J.

4 records

Conforte

Active

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

Südwestsaat GmbH

4 records

Dawn

Active

Lotus corniculatus L. · Bird's-foot trefoil

MISSOURI AGRIC.EXP.STATION (US)

4 records

Dara

Terminated

Trifolium repens L. · White clover

Poznanska Hodowla Roslin Sp. z o.o

3 records

Cosmina

Active

Medicago sativa L. · Alfalfa

SCHITEA MARIAMARTURA TEODORVARGA PAUL MIHAIL

3 records

Darselect

Protection expired

Fragaria L. · Strawberry

Robert Hureau c/o S.C. Darbonne

4 records

Darlise

Active

Asparagus officinalis L. · Asparagus

SC Darbonne (FR)

6 records

Curling

Active

x Triticosecale Wittm. ex A. Camus · Triticale

LEMAIRE DEFFONTAINES S.A.S.

4 records

Chocolate Summer

Active

Berberis thunbergii DC. · Japanese barberry

Dariusz Kapias

3 records

Chudomira

Active

Triticum aestivum L. · Bread wheat

Galina Mihova, Nikolay Tsenov, Tatyana Petrova, Vanya Ivanova, Sonya Doneva, Diyana Yordanova, Yordanka Stanoeva, Hristo Stoyanov, Bilyana Ivanova, Tsvetelina Gerdzhikova

4 records

Chief

Active

Trifolium incarnatum L. · Crimson clover

Delta and Pine Land Company

3 records

Clodius

Active

Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts

Syngenta Seeds B.V.

3 records

Claudie

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Mallet, Corinne

3 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.