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.

Très fine danoise

Active

Allium schoenoprasum L. · Chives

Domaine Public (FR)

1 record

Uku

Application submitted

Malus domestica (Suckow) Borkh. · Apple

Toivo Univer 70% / Krista Tiirmaa 15% / Neeme Univer 15% / Estonian University of Life Sciences

1 record

Travisto

Withdrawn

Lolium multiflorum Lam. · Italian ryegrass

INAKTIV Euro Grass Breeding GmbH & Co. KG

1 record

Valeska

Withdrawn

Brassica napus var. napus · Rapeseed

AGROSAAT| AgroSaat Pflanzenzucht GmbH

1 record

Triumf Packhama ISK

Terminated

Pyrus communis L. · European pear

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Valentyn 90

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Filobok Vira Oleksiivna, Fomenko Nina Panteliivna, Bukreieva Halyna Ivanivna, Khudokormova Zhanna Mykolaivna, Filobok leontii Petrovych, Kudriashov Ihor Mykolaiovych, Bespalova Liudmyla Andriivna, Dudka Liubov Fedorivna, Kovtunenko Viktor IAkovych, Tymof

1 record

Trinity

Active

Malus Mill. · Apple

Alexandra Turner

1 record

Touch of Snow

Active

Muscari · Grape hyacinth

Paul van Bentem Bloembollen B.V.

2 records

Tyurkoaz

Active

Hordeum vulgare L. · Barley

Dobroudja Agricultural Institute - General Toshevo (BG)

1 record

Tymofii

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

Plaska Valerii Mykolaiovych, Shcypak Vasyl Hennadiiovych, Popov Vitalii Mykolaiovych, Tsupko IUrii Vadymovych, Shypak Hennadii Vasyl`ovych,

2 records

Twinflower

Active

Narcissus L. · Daffodil

P.L.A. Pouw & Zn.

1 record

Torero

Terminated

Rhododendron L. · Azalea

Erbe/Erbengemeinschaft Hans Hachmann

1 record

Toya

Application submitted

Lonicera caerulea L. var. emphyllocalyx (Maxim.) Nakai · Honeyberry

Paweł Korfanty \Beata Hussak-Korfanty

1 record

Tiny Parrot

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Tiny Moon

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Tiny Cosmic

Active

Lilium L. · Lily

Mak Breeding Rights B.V./Arroyo Rights B.V.

1 record

Tokad

Application submitted

Festuca arundinacea Schreb. · Tall fescue

DLF Seeds A-S, DK

1 record

Ukrainka

Terminated

Diospyros kaki L. f. · Persimmon

Khokhlov Serhii IUriiovych

2 records

Tomoko

Active

x Amarine Sealy

Agro Fleur Select B.V./Bas van Keulen

1 record

Trick

Active

Tulipa L. · Tulip

Stichting Wageningen Research

1 record

Tiny Toons

Active

Lilium L. · Lily

Mak 't Zand B.V.

1 record

Tiny Shadow

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Tiny Poems

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Tiny Massive

Active

Lilium L. · Lily

Mak Breeding Rights B.V./Arroyo Rights B.V.

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.