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.

Sauvignac

Active

Vitis L. · Grapevine

Valentin Blattner

3 records

Sary

Terminated

Brassica napus var. napus · Rapeseed

Raps GbR Saatzucht Lundsgaard

3 records

Santhal

Active

Vicia villosa Roth · Hairy vetch

GRAMENZI ANTONIO / GRAMENZI FRANCESCO / SOARE GABRIELA / SOARE TITI

3 records

Ruddy

Active

Festuca rubra L. · Red fescue

Dr. Donald J. Floyd c/o Pickseed West, Inc.

4 records

Rozhen

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Iliya Stankov, Petra Stankova, Asen Dimov, Nevena Peychinova

4 records

Rodeo Drive

Active

Tulipa L. · Tulip

A.C.M. Smit en Zn. Bloembollenkwekerij

3 records

Romeldo

Terminated

Lolium multiflorum Lam. · Italian ryegrass

ILVO PLANT(APPLIED GENETICS+BREEDING)

4 records

Roderik

Active

Triticum aestivum L. · Bread wheat

Gesellschaft für goetheanistische Forschung e.V.

4 records

Rosepink Yodebo

Terminated

Chrysanthemum L. · Chrysanthemum

W JOHN LAYNG

3 records

Rondino

Terminated

Festuca rubra L. · Red fescue

DLF Seeds A/S

4 records

RGT Centsac

Active

x Triticosecale Wittm. ex A. Camus · Triticale

RAGT 2N S.A.S

4 records

ROZKIShNA

Active

Triticum aestivum L. · Bread wheat

Riabchuk Nataliia Ivanivna, Usova Zoia Vasylivna, Didenko Svitlana IUriivna, Panchenko Ivana Arkhopovych, Zviahin Andrii Fedorovych, Hlukhova Nataliia Anatoliivna, Hridin Mykola Mykolaiovych, Yel`nikov Mykola Ivanovych,

4 records

Rhapsodie

Active

Malus domestica (Suckow) Borkh. · Apple

Prof. Jaroslav Tupy c/o Institute of Experimental Botany

6 records

RGT Verbum

Terminated

Triticum aestivum L. · Bread wheat

RAGT CZECH S.R.O.

4 records

RGT Capexo

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

4 records

Reinis

Active

Triticum aestivum L. · Bread wheat

APP Agroresursu un ekonomikas institūts

4 records

Riposta

Active

Triticum aestivum L. · Bread wheat

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

5 records

Renegade

Protection expired

Trifolium pratense L. · Red clover

INTERNATIONAL SEEDS INC

3 records

Red Peak

Active

Festuca rubra L. · Red fescue

PURE SEED TESTING

3 records

Redstart

Active

Brassica napus var. napus · Rapeseed

New Zealand Institute for Crop and Food Research Ltd

5 records

RGT Koesio

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

4 records

RGT Flashbac

Active

x Triticosecale Wittm. ex A. Camus · Triticale

RAGT 2N S.A.S

4 records

Richmond

Active

Brassica napus var. napus · Rapeseed

DEUTSCHE SAATVEREDELUNG AG

3 records

Rebound

Active

Brassica napus var. napus · Rapeseed

Frank Houben c/o Joordens' Zaadhandel B.V.

4 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.