Variety traits

Frost hardiness

Frost hardiness is the genetically determined ability of a plant to withstand exposure to sub-zero temperatures without tissue damage. This indicator reflects the critical temperature threshold beyond which the plant dies.

Mentioned in descriptions 11 978 varieties reference book.

Frost hardiness represents the ability of a plant organism to resist the impact of low sub-zero temperatures. It determines the critical threshold above which plant tissues undergo irreversible damage or death. Unlike overall winter hardiness, which also accounts for damping-off and the effects of thaws, frost hardiness focuses specifically on the cellular response to cold exposure.

This trait is genetically determined; however, its expression depends on the physiological state of the plant and the dynamics of external conditions. Frost hardiness is not a constant value: it increases during the period of deep winter dormancy and gradually decreases towards spring, as the plant loses its ability to resist cold due to dehardening.

The evaluation of frost hardiness during variety testing is conducted through laboratory freezing in controlled conditions or through long-term field observations of crop survival. For variety comparison, scoring scales, percentage of survival, or the determination of minimum permissible temperatures in degrees Celsius are used. Maximum realization of the innate genetic potential for frost hardiness is ensured by optimal sowing dates and adequate phosphorus-potassium fertilization in the autumn.

Sources10

Breakdown by crop

Frost resistance of roses 263 Frost Resistance — Hydrangea macrophylla 162 Grapevine Cold Hardiness 152 Lily Frost Hardiness 106 Apple Frost Resistance 84 Grapevine Cold Hardiness 78 Clematis Frost Resistance 71 Tulip frost resistance 64 Peach frost hardiness 52 Frost resistance — soft wheat 44 Frost Hardiness of Rhododendron 36 Frost resistance of Heuchera 36 Frost resistance of common heather 30 Frost Hardiness of Zantedeschia 29 Pear frost resistance 24 Frost Hardiness of Sweet Cherry 24 Apple Frost Resistance 24 Gladiolus frost resistance 24 Cold hardiness of fig 24 Chrysanthemum Frost Resistance 21 Plum Frost Resistance 19 Apricot frost resistance 19 Frost resistance — garden strawberry 19 Blueberry frost resistance 18

Found in these crops

Grapevine 301 Rose 193 Lily 150 Common grape vine 142 Apple 119 Tulip 112 Bigleaf hydrangea 82 Clematis 66 Peach 63 Bread wheat 56 Azalea 44 Highbush blueberry 42

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.

Williamette

Active

Rubus idaeus L. · Red raspberry

CORVALLIS (US)

2 records

Wczesna z Morden

Active

Prunus armeniaca L. · Apricot

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

Visione

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Vidpovid odeska

Active

Triticum aestivum L. · Bread wheat

Parfent`iev Mykhailo Hryhorovych, Khodakova Tetiana Mykolaivna,

3 records

Webba Cenny

Active

Corylus avellana L. · Common hazel

Lubelski Ośrodek Doradztwa Rolniczego w Końskowoli

3 records

Voltis

Active

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

Valenciana

Active

Vicia faba L. var. major Harz · Broad bean

GENERALITAT VALEN/ANECOOP

2 records

Tom Pouce

Active

Tulipa L. · Tulip

J.A.Borst Bloembollen B.V.

2 records

Torhild

Terminated

Salix L. · Willow

Stig Larsson

2 records

Thule Exotic

Terminated

Tulipa L. · Tulip

REUS S.

2 records

Sugana

Active

Rubus L. · Blackberry

Markus Kobelt

2 records

Suffolk Red

Active

Vitis L. · Grapevine

Cornell University Foundation Inc (US)

2 records

Sunny Puma

Active

Chrysanthemum x morifolium Ramat. · Florist's daisy

Ir.J. van der Knaap c/o Fides Beheer B.V.

2 records

Strong Love

Active

Lilium L. · Lily

Boltha van der Marel B.V.

2 records

Somo

Active

Prunus armeniaca L. · Apricot

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

Smaragd

Terminated

Fargesia murielae (Gamble) T.P.Yi · Umbrella bamboo

Jürgen Schütte (Baumschulen)

2 records

Skater

Active

Allium porrum L. · Leek

Bejo Zaden B.V.

3 records

SIBERIAN - C

Active

hybrids between Prunus davidiana and Prunus persica

2 records

SEMIL'ON

Active

Vitis L. · Grapevine

2 records

Sargen

Active

Prunus domestica L. · European plum

Estonian University of Life Sciences Institute of Agricultural and Environmental Sciences Polli Horticultural Research Centre

4 records

Schneespiegel

Terminated

Rhododendron L. · Azalea

HACHMANN BAUMSCHULE

2 records

Rubinet

Active

Vitis L. · Grapevine

V. KRAUS PROF.

4 records

Ronde Maraîchère

Active

Valerianella locusta (L.) Laterr. · Corn salad

Domaine Public (FR)

2 records

Remeslivna

Active

Triticum aestivum L. · Bread wheat

Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych, Basanets` Hanna Stepanivna, Vlasenko Volodymyr Anatoliiovych, Kolomiiets` Lidiia Andriivna, Zhyvotkov Leonid Oleksandrovych, Shelepov Volodymyr Vasyl`ovych, Remeslo Volodymyr Vasyl`ovych,

3 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.