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.

DORFRAG

Terminated

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

1 record

Early Gold

Active

Crocus L. · Crocus

Bondarenko

1 record

Eetika

Active

Clematis L. · Clematis

Uno Kivistik, Aili Kivistik

1 record

Discovery Purple

Active

Iris L. · Iris

Maveridge Licensing B.V.

1 record

De Rouen

Terminated

Cichorium endivia L. · Endive

Domaine Public (FR)

1 record

Dyvnyi

Terminated

Prunus armeniaca L. · Apricot

Andriievs`ka Ol`ha Oleksandrivna, Aheieva Nina Hryhorivna, Horshkova Halyna Oleksandrivna, Polianychenko Kateryna Vasylivna, Horina Valentyna Mylentiivna, Savvina Tamara Mykhailivna, Sholokhov Oleksandr Mykhailovych, Kostina Klavdiia Fedorivna,

2 records

Dynasty

Active

Phlox paniculata L. · Garden phlox

Fa. J. Hogenboom

1 record

Dniprovska 127

Terminated

Triticum aestivum L. · Bread wheat

Morschads`ka Ol`ha Stepanivna, Yavdoshcenko Mykola Petrovych, Babich IUrii Valentynovych, Postryhan` Viktor Fedorovych, Romanenko Vasyl` Ivanovych,

1 record

Dmiana

Active

Malus domestica (Suckow) Borkh. · Apple

Boldyzheva Liubov Dmytrivna

2 records

Dutch Explosion

Active

Dahlia Cav. · Dahlia

Geerlings

1 record

DELVIOLA

Protection expired

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

1 record

Dunkelgruener vollherziger 2

Terminated

Valerianella locusta (L.) Laterr. · Corn salad

SPAETH HANS| Dr. Hans Rolf Spaeth

1 record

DESPAN

Protection expired

Lagerstroemia indica L. · Crape myrtle

Pepinieres DESMARTIS SA (FR)

1 record

DK Expedition

Withdrawn

Brassica napus L. · Rapeseed

MONSANTO TECHNOLOGY

1 record

Dubbele Bellefleur

Active

Malus domestica (Suckow) Borkh. · Apple

Information not available - Contact NL authorities

1 record

DELBLAN

Terminated

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

1 record

Dream Touch

Active

Tulipa L. · Tulip

Vertuco B.V.

1 record

Dozhnytsia

Terminated

Malus domestica (Suckow) Borkh. · Apple

Kopan` Kira Mykolaivna, Kopan Volodymyr Pavlovych (pomer), Boldyzheva Liubov Dmytrivna,

2 records

DELBLABE

Withdrawn

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

1 record

Diemierdzhyns`kyi

Terminated

Prunus persica (L.) Batsch · Peach

Latsko Tetiana Anatoliivna, Oriekhova Valentyna Petrivna, Smykov Volodymyr Karpovych, Perfil`ieva Zoia Mykolaivna,

2 records

Davidiana

Terminated

Prunus davidiana (Carrière) Franch.

INCONNU (FR)

1 record

Dickarl

Terminated

Rosa L. · Rose

Colin Dickson c/o Dickson Nurseries Limited

1 record

Double Dutch Fluoriet

Active

Lilium L. · Lily

De Looff World Breeding B.V.

1 record

Dibrova

Terminated

Festuca pratensis Huds. · Meadow fescue

Bortnovskyi Vitalii Mykolaiovych, Antoniv Stepan Fedorovych, Boiko Viktor Volodymyrovych, Buhaiov Vasyl Dmytrovych,

1 record

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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.