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.

Meidrimy

Terminated

Rosa L. · Rose

ALAIN ANTOINE MEILLAND (FR)

2 records

McKellar

Active

Hordeum vulgare L. · Barley

Mark Etienne

3 records

MASpaujeu

Protection expired

Rosa L. · Rose

Roseraies Pierre Guillot, Roseraies Pierre Guillot

2 records

Maxines Opus

Active

Lonicera caerulea L. var. emphyllocalyx (Maxim.) Nakai · Honeyberry

Thompson Maxine M.

2 records

Maris kestrel

Active

Brassica oleracea L. (Collard Group) · Collard greens

Plant Breeding International Cambridge Ltd (GB)

2 records

Meelika

Active

Prunus avium (L.) L. · Sweet cherry

Kalju Kask 50%, Johan Eichfeld 50%

4 records

Mariage

Active

Tulipa L. · Tulip

Hobaho Testcentrum voor Siergewassen

2 records

Mesgolg

Protection expired

Ilex L. · Holly

MESERVE| Kathleen K. Meserve

2 records

Meschick

Protection expired

Ilex L. · Holly

Meserve, Kathleen K.|St. James, NY

2 records

Mariia

Active

Triticum aestivum L. · Bread wheat

Usyk Liudmyla Oleksandrivna, Hrebeniuk Andrii Oleksandrovych, Honcharova Kapitalina V'iacheslavivna, Biliaieva Iryna Mykolaivna, Bazalii Halyna Hryhorivna, Orliuk Anatolii Pavlovych,

3 records

Meitandar

Terminated

Rosa L. · Rose

ALAIN ANTOINE MEILLAND (FR)

2 records

Maillarqueen

Active

Prunus persica (L.) Batsch · Peach

Arsene Maillard Laurence Maillard

4 records

Marian Red Robin

Application submitted

Potentilla L. · Cinquefoil

G. P. de Jong

5 records

Magical Amethyst

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Kolster Beheer B.V.

2 records

Malling XXVI = M 26

Active

Malus pumila L. Mill. · Paradise apple

EAST MALLING RESEARCH ST. (GB)

2 records

McNair 4823

Protection expired

Triticum aestivum L. · Bread wheat

Syngenta Participations AG

2 records

Malatewhite

Terminated

Prunus persica (L.) Batsch · Peach

Arsene Maillard Laurence Maillard

3 records

Meicoloss

Terminated

Rosa L. · Rose

ALAIN ANTOINE MEILLAND (FR)

2 records

Mairi

Active

Ribes nigrum L. · Blackcurrant

Estonian University of Life Sciences Institute of Agricultural and Environmental Sciences Polli Horticultural Research Centre

4 records

Maillargrosse

Active

Prunus persica (L.) Batsch · Peach

Euro Pepinieres SCEA (FR)/Arsene Maillard (FR)

2 records

Meirouve

Terminated

Rosa L. · Rose

ALAIN ANTOINE MEILLAND (FR)

2 records

Meicrado

Terminated

Rosa L. · Rose

ALAIN ANTOINE MEILLAND (FR)

2 records

Lucyna

Active

Prunus cerasus L. · Sour cherry

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

4 records

Marilyn

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Zakład Ogrodniczo-Szkółkarski Ryszard Majewski

4 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.