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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

Found in these crops

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.

Edenrose

Active

Allium sativum L. · Garlic

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
3 records

DICMAGIC

Protection expired

Rosa L. · Rose

C. DICKSON

IE
2 records

Eerika

Active

Malus domestica (Suckow) Borkh. · Apple

Uno Kivistik

EE
4 records

Hydrangea paniculata Siebold · Panicled hydrangea

Rein Bulk

FR
2 records

Eden

Active

Brassica oleracea L. (Curly kale Group) · Curly kale

TOZER SEEDS LTD

NL
2 records

Ebony

Active

Brassica oleracea L. (Curly kale Group) · Curly kale

TOZER SEEDS LTD

PL
2 records

Lactuca sativa L. · Lettuce

Domaine Public (FR)

FR
3 records

DELROSPIV

Terminated

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

FR
2 records

Brassica napus L. · Rapeseed

MONSANTO TECHNOLOGY

AT
3 records

DELPABRA

Active

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

FR
2 records

Dukat

Active

Fragaria L. · Strawberry

RUP «GRODNENSKIJ ZONALNYJ INSTITUT RASTENIEVODSTVA NAN BELARUSI»

CZ
2 records

DELATUR

Protection expired

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

FR
2 records

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Draga

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Kmetijski inštitut Slovenije (SI)

HR
2 records

Delcama

Terminated

Rosa L. · Rose

Pepinieres et Roseraies Georges Delbard| FR

FR
2 records

Dikras

Active

Prunus persica (L.) Batsch · Peach

Zhytkevych V'iacheslav Hryhorovych, Lysyi Ihor Vasyl`ovych,

UA
2 records

Dasone

Protection expired

Aster L. · Aster

Gosen Berend Hugo Bartels

NL
2 records

Malus domestica (Suckow) Borkh. · Apple

Domaine Public (FR)

FR
2 records

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

FR
2 records

Malus pumila L. Mill. · Paradise apple

EAST MALLING RESEARCH ST. (GB)

FR
2 records

DORMYST

Active

Rosa L. · Rose

Pepinieres & Roseraies Dorieux GAEC (FR)

FR
2 records

Danga

Active

Poa pratensis L. · Kentucky bluegrass

Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas

LT
2 records

Dolmyf

Active

Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven

Marie-France Doll, Yves Doll

FR
2 records

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