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.

Macnewye

Protection expired

Rosa L. · Rose

Samuel McGredy

4 records

Liseta

Active

Triticum aestivum L. · Bread wheat

SELGEN A.S

5 records

Le Vasterival

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Sturdza Greta|Varengeville sur Mer, FR

4 records

Lasang

Active

Trifolium pratense L. · Red clover

Graminor AS, N-2322 Ridabu

5 records

KWS Calindo CL

Active

Brassica napus var. napus · Rapeseed

KWS, D

7 records

Kwark

Active

Brassica napus var. napus · Rapeseed

Monsanto International, CH

5 records

Lawina

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Rolniczych Nasiona Kobierzyc Sp.z.o.o.

9 records

Lady in Red

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

MICHAEL A DIRR

5 records

Korhokhel

Active

Rosa L. · Rose

Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes

4 records

Kormalda

Protection expired

Rosa L. · Rose

W. KORDES'SOHNE ROSENSCHULEN GMBH & CO KG

4 records

Kolmagimo

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Kolster Peter R.|Boskoop, NL

4 records

Krynia

Active

Trifolium pratense L. · Red clover

MHR SEEDS LIMITED

5 records

Krakowiak

Active

Clematis L. · Clematis

Szczepan Marczyński

4 records

Kerry

Active

Lolium perenne L. · Perennial ryegrass

Teagasc

6 records

Korkinteral

Active

Rosa L. · Rose

Wilhelm Kordes, W. Kordes' Sohne Rosenschulen GmbH & Co KG

4 records

Kioto

Active

Prunus armeniaca L. · Apricot

JEAN-LOUIS ESCANDE

6 records

Jumbo

Terminated

Trifolium repens L. · White clover

DLF-TRIFOLIUM DANSK PLANTEFORAEDLING

4 records

KH Malko

Active

Hordeum vulgare L. · Barley

Muranyi Istvan / Pap Miklos / Halmoczki Robert / Varnai Eva

5 records

June Time

Active

Prunus persica (L.) Batsch · Peach

Lowell Glen Bradford (US)

5 records

Kertak

Active

Lolium perenne L. · Perennial ryegrass

DLF Seeds, s.r.o., CZ

6 records

June

Protection expired

Hosta Tratt. · Hosta

NEOPLANTS LTD

4 records

Juliepretty

Active

Prunus persica (L.) Batsch · Peach

Maillard Laurence|Elne, FR / Maillard Arsene|Elne, FR

6 records

IPUT'

Active

Prunus avium (L.) L. · Sweet cherry

6 records

Info

Active

Lolium perenne L. · Perennial ryegrass

Malopolska Hodowla Roslin Spolka z o.o.

5 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.