Variety traits
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.
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.
Calluna vulgaris (L.) Hull · Common heather
KERSKI| Manfred Kerski
Tulipa L. · Tulip
Vertuco B.V.
Clematis L. · Clematis
Szczepan Marczyński
Clematis L. · Clematis
Szczepan Marczyński
Vitis vinifera L. · Common grape vine
Stasieva Mariia Ivanivna, Yarmak IEvheniia Dmytrivna, Storozhuk Kateryna Moisiivna, Bankovska Mariia Hryhorivna, Tulaieva Maiia Ivanivna, Meleshko Larysa Fedorivna, Dokuchaieva IEvheniia Mykolaivna,
Prunus persica (L.) Batsch · Peach
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Clematis viticella L. · Italian leather flower
Uno Kivistik, Aili Kivistik
Prunus persica (L.) Batsch · Peach
Riabov Ivan Mykolaiovych, Perfil`ieva Zoia Mykolaivna, Smykov Volodymyr Karpovych, Smykov Anatolii Volodymyrivna, Latsko Tetiana Anatoliivna, Fedorova Ol`ha Stepanivna, Lobanovs`ka Valentyna Fedorivna,
Prunus persica (L.) Batsch · Peach
NORTHRUP KING Co (US)
Prunus laurocerasus L. · Cherry laurel
Straver
Vitis vinifera L. · Common grape vine
LAND HESSEN GEISENHEIM| Land Hessen, vertreten durch FA f. Wein- und Gartenbau, Ge- traenketechnologie u.Landespflege-Fachgb. f.Rebenzuech.u.-veredl.-
Rosa L. · Rose
Mark Gergely / Mark Gergelyne
Cichorium endivia L. · Endive
Domaine Public (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Actinidia purpurea x Actinidia arguta
Kul`chyts`ka Matrona Antonivna, Moroz Pavlo Antonovych, Skrypchenko Nadiia Vasylivna,
Vitis vinifera L. · Common grape vine
HÖHERE BUNDESLEHRANSTALT UND BUNDESAMT FÜR WEIN UND OBSTBAU
Malus domestica (Suckow) Borkh. · Apple
Boldyzheva Liubov Dmytrivna, Kopan` Kira Mykolaivna, Kopan Volodymyr Pavlovych,
Vitis L. · Grapevine
CORNELL UNIVERSITY (US)
Prunus armeniaca L. · Apricot
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Vaccinium corymbosum L. · Highbush blueberry
Szkola Glowna Gospodarstwa Wiejskiego
Fritillaria L. · Fritillary
V.O.F. de Keizerskroon
Vaccinium macrocarpon Aiton · American cranberry
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Cichorium endivia L. · Endive
Domaine Public (FR)
Rhododendron L. · Azalea
WILLY STRECK