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.

KH Turul

Active

Hordeum vulgare L. · Barley

Muranyi Istvan / Pap Miklos

4 records

Kihnu

Active

Festuca ovina L. · Sheep's fescue

Ants Bender, Centre of Estonian Rural Research and Knowledge

4 records

Korelasting

Protection expired

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

3 records

KH Kincsem

Active

Hordeum vulgare L. · Barley

Muranyi Istvan / Pap Miklos / Halmoczki Robert / Varnai Eva

4 records

KG Nagykun

Active

Hordeum vulgare L. · Barley

DE Agrártudományi Centrum Kutató Központja, Karcag

4 records

Katniss

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

3 records

Kora

Terminated

Trifolium pratense L. · Red clover

Hagberg, Arne

4 records

Kaskada

Active

Festuca pratensis Huds. · Meadow fescue

Malopolska Hodowla Roslin Spolka z o.o.

4 records

Korlech

Active

Rosa L. · Rose

W.KORDES'SOHNE

3 records

Kate

Active

Rosa L. · Rose

David Austin Roses

3 records

Kolmber

Active

Ilex verticillata (L.) A. Gray · Winterberry

Peter Kolster

6 records

Karavane

Terminated

Dactylis glomerata L. · Cocksfoot

FRITSEN| Hugo Fritsen c/o Dansk Planteforaedling A/S (DLF-Trifolium A/S)

5 records

Klara

Active

Salix L. · Willow

Stig Larsson

3 records

Kidd's Orange Red

Active

Malus domestica (Suckow) Borkh. · Apple

5 records

IZ Bori

Active

Hordeum vulgare L. · Barley

Marina Gramatikova, Dragomir Valchev, Radka Stamatova

4 records

KG Berek

Application submitted

x Triticosecale Wittm. ex A. Camus · Triticale

DE Agrártudományi Centrum Kutató Központja, Karcag

3 records

Jonagored Supra

Active

Malus Mill. · Apple

Jozef Morren c/o Jomobel N.V.

3 records

Katalonski

Active

Corylus avellana L. · Common hazel

RESPUBLIKANSKOE NAUCHNO-PROIZVODSTVENNOE DOCHERNEE UNITARNOE PREDPRITIE «INSTITUT PLODOVODSTVA»

5 records

Karaka Black

Active

Rubus L. subg. Rubus · Blackberry

Harvey K Hall

5 records

Kaplan-86

Active

Juglans regia L. · Persian walnut

4 records

Jacretou

Active

Rosa L. · Rose

Zary Keith (US)

3 records

Kadji

Active

Brassica napus var. napus · Rapeseed

Monsanto Technology LLC, US

3 records

Impresa

Active

Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage

BEJO ZADEN

4 records

Jenny

Terminated

Medicago sativa L. · Alfalfa

ANDERSSON BENGT

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.