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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.

Petroselinum crispum (Mill.) Nym. ex A.W. Hill var. tuberosum (Bernh.) Mart Crov. · Hamburg parsley

PL
1 record

Bounty

Active

Hydrangea arborescens L. · Smooth hydrangea

No information of breeder available for this variety

FR
1 record

Fragaria L. · Strawberry

IT
1 record

Hydrangea aspera Buch.-Ham. ex D. Don · Rough-leaved hydrangea

Information regarding the breeder received in the contribution to CPVO :Bullivant E.

FR
1 record

Aranka

Protection expired

Ribes nigrum L. · Blackcurrant

HU
1 record

Benelux

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Baardse D.

FR
1 record

Hydrangea paniculata Siebold · Panicled hydrangea

Information regarding the breeder received in the contribution to CPVO :De Belder R. & J.

FR
1 record

Charming

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :Draps-Dom

FR
1 record

Pyrus communis L. · European pear

SI
1 record

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

No information of breeder available for this variety

FR
1 record

Bryhantyna

Application submitted

Rubus idaeus L. · Red raspberry

UA
1 record

Malus domestica (Suckow) Borkh. · Apple

SI
1 record

Amfidyploid 42

Application submitted

x Triticosecale Wittm. ex A. Camus · Triticale

UA
1 record

Ammarin

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Information regarding the breeder received in the contribution to CPVO :Bulk R. & M.

FR
1 record

Amfidyploid 52

Application submitted

x Triticosecale Wittm. ex A. Camus · Triticale

UA
1 record

Allium L. · Ornamental Allium

NL
1 record

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