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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

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.

ADACANER

Terminated

Rosa L. · Rose

Michel Adam (FR)

FR
1 record

AC Langille

Withdrawn

Lotus corniculatus L. · Bird's-foot trefoil

POWER SEED INC.

IT
1 record

Yogigi Pink

Terminated

Chrysanthemum L. · Chrysanthemum

PETER WAIN

1 record

Zaisito

Active

Prunus persica (L.) Batsch · Peach

Floyd Zaiger

2 records

11

Terminated

Paulownia fortunei (Seem.) Hemsl. x Paulownia tomentosa (Thunb.) Steud.

Kiri Project Development SRL

RO
1 record

(96-11-53) Rozana

Active

Fragaria L. · Strawberry

Kopan Volodymyr Pavlovych, Kopan` Kira Mykolaivna,

UA
2 records

WNHYDFBWMH

Application submitted

Hydrangea luteovenosa Koidz. x Hydrangea macrophylla (Thunb.) Ser.

Ushio Sakazaki

1 record

Wiltil

Withdrawn

Tilia x europaea L. · European linden

Readyhedge Ltd.

1 record

Adolf Lishchuk

Terminated

Diospyros kaki L. f. · Persimmon

Nebykov Mykhailo Valentynovych, Derev'ianko Nataliia Vasylivna, Opalko Anatolii Ivanovych, Kosenko Ivan Semenovych, Derev'ianko Vasyl Mykolaiovych,

UA
2 records

Abrikooskers

Active

Prunus avium (L.) L. · Sweet cherry

Information not available - Contact NL authorities

NL
1 record

White Fairy

Withdrawn

Erica L. · Heather

Boomkwekerij Hoekert B.V.

1 record

Vukozgemini

Active

Weigela florida (Bunge) A. DC. · Old fashioned weigela

Výkumný ústav Silva Taroucy pro krajinu a okrasné zahradnictiví v.v.i.

1 record

4CD

Terminated

Festuca rubra L. · Red fescue

PURE SEED TESTING

ES
1 record

Vision

Protection expired

Astilbe Buch.-Ham. ex D. Don · False goat's beard

Gerardus Johannes van Veen

1 record

Violette de Loire

Active

Salvia xjamensis J. Crompton · Jame sage

Barrault Horticulture S.A.R.L.

1 record

Zomonch

Withdrawn

Clematis L. · Clematis

J.VAN ZOEST BEHEER B.V.

1 record

ZO23020

Application submitted

Clematis L. · Clematis

J.VAN ZOEST BEHEER B.V.

1 record

Yomorgan

Terminated

Chrysanthemum L. · Chrysanthemum

PETER WAIN

1 record

Vision in White Delight

Application submitted

Astilbe x arendsii H. Junge · Arends astilbe

Wilhelmus Franciscus van Veen

1 record

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