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.

ALEXANDRA

Terminated

Calluna Salisb. · Heather

MR.K.KRAMER

2 records

Ahrku Orange

Terminated

Euphorbia fulgens Karw. ex Klotzsch · Scarlet plume

Immanuel Kuttler / Dr. Walter Preil im Institut fuer gartenbauliche Pflanzenzuechtung / Rainer Ebbinghaus im Institut fuer gartenbauliche Pflanzenzuechtung

2 records

Alupka

Active

Artemisia taurica Willd. · Tauric wormwood

Mashanova Nina Serhiivna, Rabotiahov Valerii Dmytrovych, Mashanov Vasyl` Ivanovych, Lohvinenko Lidiia Oleksiivna, Cherednychenko Liubov Mykolaivna,

4 records

A grosse racine gros hâtif

Active

Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley

Domaine Public (FR)

2 records

Aita

Active

Brassica rapa L. · Turnip rape

Lea Narits, Centre of Estonian Rural Research and Knowledge, Aamisepa 1, 48 309, Jõgeva alevik, Jõgevamaa, Estonia

2 records

AGOUDEL

Active

Prunus cerasus L. · Sour cherry

Paul Argot (FR)

2 records

Alice Col

Active

Prunus persica (L.) Batsch · Peach

4 records

Algida

Active

Allium cepa L. var. cepa · Onion

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

3 records

Afrodite

Application submitted

Vitis vinifera L. · Common grape vine

Dimitar Babrikov, Venelin Roychev, Agricultural University - Plovdiv (BG)

2 records

Altair

Active

Lolium multiflorum Lam. · Italian ryegrass

F.LLI COZZI S.N.C.

2 records

Almo

Active

Ribes nigrum L. · Blackcurrant

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

5 records

26205 Joannès Seyve

Active

Vitis L. · Grapevine

INCONNU (FR)

2 records

Aita

Active

Rubus idaeus L. · Red raspberry

Johannes Parksepp 60%, Asta-Virve Libek 40%, Estonian Univerity of Life Sciences Institute of Agricultural and Environmental Sciences Polli Horticultural Research Centre, Polli, Karksi-Nuia, 69108, Viljandimaa, Estonia

4 records

ABHA547

Active

Echinacea purpurea (L.) Moench · Purple coneflower

AB Kwekersrechten B.V.

2 records

Zostarri

Active

Clematis L. · Clematis

Wim Snoeijer

2 records

Zelda

Active

Calluna vulgaris (L.) Hull · Common heather

Helmut Hiedl

2 records

ZO09063

Active

Clematis L. · Clematis

J.VAN ZOEST BEHEER B.V.

2 records

Zelia

Active

Calluna vulgaris (L.) Hull · Common heather

Kurt Kramer

2 records

ZR1

Active

Weigela Thunb. · Bush Honeysuckle

Verhoef Gijsbertus

2 records

Zoiamladyq

Active

Clematis L. · Clematis

Wim Snoeijer

2 records

Zobluepi

Active

Clematis L. · Clematis

Wim Snoeijer

2 records

Zobadol

Active

Clematis L. · Clematis

van Zoest Jan

2 records

ZO09073

Active

Clematis L. · Clematis

J.VAN ZOEST BEHEER B.V.

2 records

Yogigi Gold

Active

Chrysanthemum L. · Chrysanthemum

PETER WAIN

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.