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.

Soft Price

Active

Tulipa L. · Tulip

Triflor Breeding Rights B.V.

1 record

Peonia Tulp Bulls Eye

Active

Tulipa L. · Tulip

Ad Vester

1 record

Royal Navy

Active

Hyacinthus · Hyacinth

"Bloembollenkwekerij J.S. Pennings ""De Bilt""

1 record

Myronivs`ka slava

Application submitted

Triticum aestivum L. · Bread wheat

Dubovyk Nataliia Serhiivna, Yurchenko Tetiana Vasylivna, Siroshtan Andrii Anatoliiovych, Zamlila Nina Petrivna, Humeniuk Oleksandr Volodymyrovych, Chernov Oleh Vasyl`ovych, Kochmars`kyi Valentyn Serhiiovych,

2 records

Polonez Chopina

Active

Rhododendron L. · Azalea

Piotr Muras

1 record

Miss Marple

Active

Lilium L. · Lily

World Breeding B.V

1 record

Pink Dream

Active

Clematis L. · Clematis

Szczepan Marczyński

2 records

Metelytsia kharkivska

Active

Triticum aestivum L. · Bread wheat

Luchna Inna Stanislavivna, Leonov Oleh Yuriiovych, Riabchun Nataliia Ivanivna, Suvorova Kateryna Yuriivna,Usova Zoia Vasylivna, Iodkovskyi Vladislav Zdislavovych, Didenko Svitlana Yuriivna, Zuza Olena Oleksandrivna, Yarosh Andrii Vasylovych

2 records

Double Sensation

Active

Lilium L. · Lily

Marklely CV

1 record

Candin

Active

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

Lilani

Active

Calluna vulgaris (L.) Hull · Common heather

Helmut Hiedl

1 record

Venetian

Terminated

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

1 record

Florvendula Rose

Terminated

Lavandula stoechas L. · French lavender

HAMER BLOEMZADEN B.V.

1 record

SUAPS 1729

Application submitted

Saxifraga fortunei (Maxim.) Hook. f. · Fortune's saxifrage

Olivier Galéa

1 record

Dorina

Active

Calluna vulgaris (L.) Hull · Common heather

Horst Marohn

1 record

Іghrushka

Terminated

Prunus cerasus L. · Sour cherry

Turovtseva Valentyna Oleksandrivna, Turovtsev Mykola Ivanovych,

1 record

Yuzu Commun

Active

Citrus junos Sieb ex Tanaka · Yuzu

INCONNU (FR)

1 record

Zugspitze

Active

Leontopodium alpinum Cass.

Heinrich Weiß (Gartenbaubetrieb)

1 record

Wind of Change

Active

Tulipa L. · Tulip

Vertuco B.V.

1 record

World Bowl

Active

Tulipa L. · Tulip

G. Buis Bloembollen B.V./Phoenix Tulips V.o.f.

1 record

Voloshkova

Terminated

Triticum aestivum L. · Bread wheat

Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych, Khomenko Svitlana Olehivna, Kyrylenko Vira Viktorivna, Marynka Svitlana Mykolaivna, Bershads`ka Liudmyla Petrivna, Basanets` Hanna Stepanivna, Holyk Liubov Mykolaivna, Dubovyi Volodymyr Ivanovyc

2 records

Webba KON

Terminated

Corylus avellana L. · Common hazel

Lubelski Ośrodek Doradztwa Rolniczego w Końskowoli

1 record

Voicemail

Active

Tulipa L. · Tulip

Marax Rights B.V.

1 record

Vezha

Active

Triticum aestivum L. · Bread wheat

Vasylenko, Taisiia

2 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.