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.

JAN W3M

Active

Fargesia murielae x Fargesia nitida

Wilfried Janßen

2 records

ET DLP 17 10

Active

Delphinium x belladonna hort. ex Bergmans · Belladonna delphinium

Noordhuis Bart / Bisschop Elisabeth

2 records

Mary Lu

Active

Calluna vulgaris (L.) Hull · Common heather

Kurt Kramer

2 records

Botex 014

Application submitted

Buddleja davidii Franch. · Butterfly bush

Botanic Experience B.V.

2 records

PEK OR

Active

Crocosmia Planch. · Montbretia

Burpee NL B.V.^^^Hendrik W. van der Velde

2 records

KLEHH 08008

Terminated

Helleborus niger L. · Christmas rose

Karl-Ludwig Haller

2 records

CBO-1

Active

Campanula portenschlagiana Schult. · Dalmatian bellflower

Gartneriet Thoruplund A/S

2 records

Anny's Purple Dream

Active

Corylus avellana L. · Common hazel

van Nijnatten Andre F.|4881 DJ, Zundert, NL

3 records

G 814

Active

Malus domestica x Malus robusta · Apple

Herbert Aldwinckle^^^Gennaro Fazio^^^James Cummins^^^Terence L. Robinson

3 records

Annie's Blue

Active

Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven

Richard Lighty

3 records

Denim 'N Lace

Active

Perovskia atriplicifolia Benth. · Russian sage

Kevin A. Hurd

2 records

Schedrist` odes`ka

Active

Triticum aestivum L. · Bread wheat

Babaiants Lazar Tihranovych, Holub IEvheniia Anatoliivna, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Antonovych, Lytvynenko Raisa Ivanivna, Reshetnikova Valentyna Semenivna, Rubakha Serhii Andriiovych, Solomonov Ruslan Viacheslavovych, Parfentiev Myk

3 records

Jonagored

Active

Malus domestica (Suckow) Borkh. · Apple

BE CZ DE ES FR HU +5

33 records

Cargo

Active

Vaccinium corymbosum L. · Highbush blueberry

NL UA

21 records

Rosy Glow

Active

Malus domestica (Suckow) Borkh. · Apple

18 records

Jonagored Supra

Active

Malus domestica (Suckow) Borkh. · Apple

BE CZ FR HU NL PL

18 records

Huron

Active

Vaccinium corymbosum L. · Highbush blueberry

NL UA

18 records

Fuji

Active

Malus domestica (Suckow) Borkh. · Apple

CZ ES FR NL SK UA

19 records

Liberty

Active

Vaccinium corymbosum L. · Highbush blueberry

NL UA

14 records

Osorno

Active

Vaccinium corymbosum L. · Highbush blueberry

NL UA

14 records

Aurora

Active

Vaccinium corymbosum L. · Highbush blueberry

NL UA

14 records

Melrose

Active

Malus domestica (Suckow) Borkh. · Apple

CZ ES FR NL PL SI

19 records

Jonkheer van Tets

Active

Ribes rubrum L. · Redcurrant

CZ HU LT NL PL RO +2

16 records

Summit

Active

Prunus avium (L.) L. · Sweet cherry

ES FR NL PL UA

20 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.