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.

SAPNIS

Terminated

Malus domestica (Suckow) Borkh. · Apple

Rudolfs Dumbravs

1 record

Saphira

Active

Vitis vinifera L. · Common grape vine

Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Ernst Rühl

2 records

Sanctus Hubertus ISK

Terminated

Prunus domestica L. · European plum

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Satra

Terminated

Dactylis glomerata L. · Cocksfoot

Poznanska Hodowla Roslin Sp. z o.o

1 record

Sally

Terminated

Trifolium pratense L. · Red clover

Hagberg, Arne

2 records

SANTA

Active

Rosa L. · Rose

Dzidra Rieksta

1 record

Saint Pierre

Terminated

Fragaria L. · Strawberry

Shahrokh, Khanidazeh

1 record

Salma

Active

Erica gracilis J. C. Wendl. · Slender heath

Hans-Peter Holz

1 record

Sakala

Active

Clematis L. · Clematis

Uno Kivistik, Aili Kivistik

1 record

Sanguine Tardive Chanas

Application submitted

Prunus persica (L.) Batsch · Peach

GAEC des Pepinieres Gromolard (FR)

1 record

Rum'iana Zor`ka

Terminated

Prunus cerasifera Ehrh. var. divaricata (Ledeb.) L. H. Bailey · Cherry plum

Kostina Klavdiia Fedorivna

2 records

Samba

Active

Begonia L. · Begonia

Hoefnagels B.V.

1 record

Scoubidou

Active

Lilium L. · Lily

De Jong Beheer B.V.

1 record

Salsa

Terminated

Lolium perenne L. · Perennial ryegrass

Carneau Freres SA (FR)

1 record

Salsa

Active

Tulipa L. · Tulip

W. van Lierop & Zonen B.V.

2 records

SACHSENSTERN

Terminated

Rhododendron L. · Azalea

RANNACKER KARSTEN

1 record

Rubra

Active

Picea omorika (Pancic) Purk.

Państwowe Gospodarstwo Leśne Lasy Państwowe Nadleśnictwo Syców

1 record

Schiedam

Active

Tulipa L. · Tulip

Huijg Veredeling B.V.

1 record

Rubinovyi Dar

Active

Rosa L. · Rose

Tovarystvo z obmezhenoiu vidpovidalnistiu "ShYPShYNA UKRAINY",Tovarystvo z obmezhenoiu vidpovidalnistiu «PLANTEKS»,

2 records

SALASPILS IZTURIGA

Active

Vaccinium virgatum Aiton · Rabbit-eye blueberry

Alfreds Ripa

1 record

Samba

Terminated

Fuchsia L. · Fuchsia

Wolfram Götz

1 record

RPB 181 70

Withdrawn

Triticum aestivum L. · Bread wheat

ROTHWELL P.B.

1 record

Rw Nadal

Terminated

Triticum aestivum L. · Bread wheat

RAGT CZECH S.R.O.

2 records

SAGA W2

Withdrawn

Prunus domestica L. · European plum

Earl Les Hebrards (FR)

1 record

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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.