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.

MINSYGRBL1

Active

Hibiscus syriacus L. · Rose of Sharon

Hortival Diffusion S.A.S.

2 records

Meiperette

Active

Rosa L. · Rose

Alain Antoine Meilland

2 records

Koria

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Cornelis Pieter Eveleens

4 records

Meikeneza

Active

Rosa L. · Rose

Alain Antoine Meilland

2 records

Korgetcali

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

Korgellan

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

2 records

Mahogany Monster

Terminated

Heuchera L. · Coral Flower

Hansen Hans A

2 records

Magenta Riding Hood

Active

Penstemon Schmidel. · Beard Tongue

Holding MZ Partners B.V.

2 records

Meibokir

Active

Rosa L. · Rose

ALAIN MEILLAND

2 records

Medusas Hair

Active

Allium senescens L. subsp. senescens x A. tanguticum Regel

Hans A. Hansen

2 records

Loyalist

Active

Hosta Tratt. · Hosta

Vitro Westland B.V.

2 records

MINFIGFOR

Active

Ficus carica L. · Common fig

Jean-Yves Forest

2 records

Maskerade

Active

Lonicera japonica Thunb. · Japanese honeysuckle

van Manen Pieter|Ederveen, NL

2 records

Lannou

Active

Elaeagnus L. · Elaeagnus

LADAN S.A. PEPINIERES

2 records

Lucmull

Active

Hakonechloa macra (Munro) Makino · Japanese forest grass

Lucas Neil,Humphrey Ross

2 records

LONSPI

Active

Spiraea hayatana x Spiraea japonica

Peter R. Moore

2 records

Live Oak

Active

Gladiolus L. · Gladiolus

Coöperatieve Kwekersvereniging "For Ever" U.A.

2 records

KONCAFIRE

Terminated

Alstroemeria L. · Alstroemeria

Könst Breeding B.V.

2 records

Mels

Active

Stokesia laevis (Hill) Greene · Stokes' aster

Van Heesbeen Cultures B.V.

2 records

Meizonbla

Active

Rosa L. · Rose

MEILLAND ALAIN ANTOINE

2 records

Kolmpigi

Active

Hypericum x inodorum Mill. · Tall tutsan

Floribreed V.O.F.

2 records

Meissalu

Active

Rosa L. · Rose

MEILLAND ALAIN ANTOINE

2 records

Kolmgrepo

Active

Hypericum x inodorum Mill. · Tall tutsan

Jan de Jong^^^Wilhelmina J. B. de Jong-Tazelaar^^^Agriom Trade B.V.

2 records

Kolmdepu

Active

Callicarpa bodinieri H. Lev.

Kolster Holding B.V.

2 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.