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.

Incrediball

Active

Hydrangea arborescens L. · Smooth hydrangea

Wood Timothy D

2 records

JELENAMEX

Terminated

Rosa L. · Rose

ROBERT G. JELLY

2 records

HorAbstra

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Meinl Katrin|Dresden, DE

2 records

Honey Bee

Active

Lonicera caerulea L. var. kamtschatica Sevast. · Blue-berried honeysuckle

University of Saskatchewan, CAN

2 records

Holland White

Terminated

Iris L. · Iris

Iris Nova V.O.F.

2 records

Jamajka

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

4 records

Hokent

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

4 records

Ivory Pixie

Active

Lilium L. · Lily

Veenstra Orchid

3 records

HYPMAD I

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Information regarding the breeder received in the contribution to CPVO :Dirr M. A.

2 records

JACurnam

Active

Rosa L. · Rose

Zary Keith W.|Somis, CA

2 records

Holland Chic

Active

Tulipa L. · Tulip

J.W. Reus Bloembollen B.V.^^^J.A. Borst Bloembollen B.V.

2 records

Holmstrup

Active

Thuja occidentalis L. · Northern white-cedar

GNU "CZENTRALNYJ BOTANICHESKIJ SAD NAN BELARUSI"

2 records

Holehird Purple

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

LAKELAND HORTICULTURAL SOCIETY

2 records

Hiberna

Active

Allium cepa L. · Onion

MORAVOSEED

2 records

Indian Summerset

Active

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

2 records

Helkal

Active

Rubus idaeus L. · Red raspberry

Johannes Parksepp

4 records

Hall's Giant

Active

Corylus avellana L. · Common hazel

4 records

Halle'sche Riesen

Active

Corylus avellana L. · Common hazel

4 records

Hallowy

Active

Gladiolus L. · Gladiolus

For Ever Bulbs B.V.

2 records

Hachfee

Active

Ilex L. · Holly

Hachmann Hans

2 records

Holubka odes`ka

Active

Triticum aestivum L. · Bread wheat

Parfentiev Mykhailo Hryhorovych, Rubakha Serhii Andriiovych, Reshetnikova Valentyna Semenivna, Solomonov Ruslan Viacheslavovych, Kostiuk Stanislav Vasyl`ovych, Lytvynenko Raisa Ivanivna, Ptashenchuk Oleksandr Mykytovych, Honcharuk Nina Oleksandrivna, Lytv

3 records

Groniasta z Ujfehertoi

Active

Prunus cerasus L. · Sour cherry

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

Gorica

Terminated

Triticum aestivum L. · Bread wheat

Jost Sjeme-istraživanja j.d.o.o. (HR)

2 records

Hâtif Burlat

Active

Prunus avium (L.) L. · Sweet cherry

BURLAT (FR)

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.