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.

A Little Bit

Active

Salvia x sylvestris L. · Wood sage

Jan Spruyt - Van der Jeugd B.V.B.A.

2 records

Atomic Blue

Active

Veronica L. · Speedwell

Verschoor Jan|Haarlem, NL

2 records

Agitato

Active

Tulipa L. · Tulip

Frits Kuijpers

2 records

Big Kahuna

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

HARINI KORLIPARA

2 records

Banshee

Active

Molinia caerulea (L.) Moench · moor grass

Tomaz Grochowscy

3 records

Balsomcor

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

Jianping Ren

2 records

Bambi

Active

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

Bent Olsen

2 records

Andante

Active

Tulipa L. · Tulip

Hybris B.V.

3 records

Alcatraz

Active

Tulipa L. · Tulip

Hybris B.V.

2 records

Balavurlu

Active

Lavandula angustifolia Mill. · English lavender

Martijn Baijens

2 records

Ace of Hearts

Active

Cercis canadensis L. · Eastern redbud

Woody Paul Buddy Ewing|Morganton, NC, US

2 records

Allvbride

Active

Veronica x media Schrad.

WIM VAN DEN HOOGEN

2 records

ABRELA

Application submitted

Elaeagnus x ebbingei Boom

ALBERT BRENELIERE

2 records

Bailtiger

Active

Rhus typhina L. · Staghorn sumac

Jorgensen Steven|Hastings, MN, US

2 records

Aztec Gold

Active

Choisya H.B.K. · Mexican orange

Alan Postill

2 records

Bailteaone

Active

Itea virginica L. · Sweetspire

Michael A. Dirr^^^Rhonda Helvick^^^Oren McBee

2 records

ANEM078

Active

Anemone x lesseri H. R. Wehrh.

Holtmaat Henricus Maria Joseph

2 records

Amistad

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Amandi

Active

Nerine bowdenii W. Watson · Corn lily

Agrofleur Select B.V.

2 records

Allblossom

Active

Hypericum L. · St. John's wort

ALLPLANTS HOLDING B.V.|STUART SCOTT

2 records

Zemliachka odes`ka

Active

Triticum aestivum L. · Bread wheat

Reshetnikova Valentyna Semenivna, Ptashenchuk Oleksandr Mykytovych, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Antonovych,

3 records

Vincenta

Terminated

Hordeum vulgare L. · Barley

Claus Einfeldt

3 records

Uzhynok

Active

Triticum aestivum L. · Bread wheat

Dorofieieva Zinaida Dmytriivna, Bosakovska Nataliia IUriivna, Bredins`ka Nadiia Stepanivna, Rodenko Halyna Anatoliivna, Nakohnechnyi Mykola IUriiovych, Narhan Tetiana Pavlivna, Rybalka Oleksandr Illich, Fedchenko Volodymyr Pavlovych, Yeryniak Mykola Ivano

3 records

Shalanda

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Pryimachuk Mykhailo Ivanovych, Syvokon` Inna Valentynivsna, Chernobab Raisa Andriivna, Suvorova Kateryna IUriivna, Shcypak Hennadii Vasylovych,

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.