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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.

Bittern

Active

Brassica oleracea L. (Kale Group) · Kale

IE SE
4 records

Rubus L. subg. Rubus · Blackberry

CZ HU SK
5 records

Vetrovsky

Protection expired

Phleum pratense L. · Timothy grass

CZ SK
4 records

Heerma

Active

Vaccinium corymbosum L. · Highbush blueberry

DE NL SI
5 records

Rubus idaeus L. · Red raspberry

CZ NL SK
6 records

Paulared

Active

Malus domestica (Suckow) Borkh. · Apple

LT PL
9 records

Wealthy

Active

Malus domestica (Suckow) Borkh. · Apple

CZ EE FR
9 records

Rubus idaeus L. · Red raspberry

CZ HU NL
7 records

Rubus L. · Blackberry

NL RO SI
7 records

Octavia

Active

Rubus idaeus L. · Red raspberry

NL UA
9 records

Trisetum flavescens (L.) P. Beauv. · Golden oat grass

CZ SK
4 records

Valtteri

Active

Festuca pratensis Huds. · Meadow fescue

FI SE
6 records

Prunus persica (L.) Batsch · Peach

FR NL SK
6 records

Pyrus communis L. · European pear

FR NL SI
6 records

Parant

Protection expired

Phleum nodosum L. · Small-leaf timothy

DK SE
4 records

Rokali

Active

Trifolium incarnatum L. · Crimson clover

CZ DE
5 records

Eros

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

NL PL UA
9 records

Veteran

Active

Prunus persica (L.) Batsch · Peach

RO SI
5 records

Elliott

Active

Vaccinium corymbosum L. · Highbush blueberry

NL PL UA
7 records

Navaho

Active

Rubus L. · Blackberry

DE NL
6 records

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