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.

Cream Cracker

Active

Cornus alba L. · Red-barked dogwood

Pannebakker John

4 records

Cezara

Active

Medicago sativa L. · Alfalfa

SCHITEA MARIAMARTURA TEODOR

5 records

Coptic

Active

Festuca rubra L. · Red fescue

DLF SEEDS A/S

5 records

Chancellor

Active

Festuca rubra L. · Red fescue

Oregro Seeds

5 records

Charlize

Active

Festuca rubra L. · Red fescue

DLF SEEDS A/S

4 records

Cledor

Active

Linum usitatissimum L. · Common flax

Linéa Semences de Lin G.I.E.

5 records

Cleek

Active

Agrostis capillaris L. · Common bent

DLF SEEDS A/S

4 records

Caddieshack

Active

Lolium perenne L. · Perennial ryegrass

JACKLIN SEED

4 records

Cadence

Active

Avena strigosa Schreb. · Black oat

Jouffray-Drillaud SA (FR)

7 records

Boudica

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

6 records

Brigela

Active

Weigela Thunb. · Bush Honeysuckle

Briant Andre

4 records

Blackjack

Active

Cynodon dactylon (L.) Pers. · Bermuda grass

Cascade International Seed Company

5 records

Brilla

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Walther Faedi^^^Gianluca Baruzzi^^^Pierluigi Lucchi^^^Paolo Sbrighi

5 records

Bowie

Active

Lolium perenne L. · Perennial ryegrass

DLF Trifolium A-S, DK

8 records

Barnoble

Active

Festuca arundinacea Schreb. · Tall fescue

Barenbrug Holland BV (NL)

4 records

Bogatka

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

7 records

Beehappy

Active

Phacelia tanacetifolia Benth. · Lacy phacelia

Euro Grass B.V.

5 records

Barra

Protection expired

Avena sativa L. · Oat

W WEIBULL

6 records

Ballyvoy

Active

Lolium perenne L. · Perennial ryegrass

Agri-food and Biosciences Institute (AFBI Belfast)

6 records

Bavaria

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Information regarding the breeder received in the contribution to CPVO :HBA B.V.

4 records

Baukis

Terminated

Lolium multiflorum Lam. · Italian ryegrass

Saatzucht Steinach GmbH & Co KG

4 records

Ausblush

Protection expired

Rosa L. · Rose

David C H Austin (GB)/Patricia J Austin (GB)

4 records

Barbara SP Inta

Active

Medicago sativa L. · Alfalfa

E.E.A.MANFREDI INTA

7 records

Athlet

Active

Sinapis alba L. · White mustard

P.H. Petersen Saatzucht Lundsgaard GmbH Herrn Asmus Sören Petersen / Michaela Schlathölter

6 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.