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.
Phleum pratense L. · Timothy grass
Danko Hodowla Roslin Sp.z.o.o.
Malus domestica (Suckow) Borkh. · Apple
Gospodarstwo Szkółkarskie Andrzej i Szymon Nowakowscy
Vitis L. · Grapevine
GUIDO CIPRIANI / ENRICO PETERLUNGER / GABRIELE DI GASPERO / MICHELE MORGANTE / SIMONE DIEGO CASTELLARIN / RAFFAELE TESTOLIN
Festuca L. · Fescue
Krzysztof Slowinski
Festuca ovina L. · Sheep's fescue
Advanta Seeds B.V. (NL)
Malus domestica (Suckow) Borkh. · Apple
Triticum durum Desf. · Durum wheat
SAATZUCHT DONAU GES.M.B.H. & COKG
Clematis L. · Clematis
Szczepan Marczyński
Medicago sativa L. · Alfalfa
Forage Genetics International
Lilium L. · Lily
McRae, Edward A|Boring, OR
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
x Triticosecale Wittm. ex A. Camus · Triticale
DE Agrártudományi Centrum Kutató Központja, Karcag
Clematis L. · Clematis
Szczepan Marczyński
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Syngenta Seeds B.V.
Lysimachia fortunei Maxim.
Alexius Joannes Joseph van der Zwet
Lavatera L. · Tree mallow
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Saphinov S.N.C.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Sakata Vegetables Europe, F
Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts
BEJO ZADEN
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Wood Timothy D
x Triticosecale Wittm. ex A. Camus · Triticale
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Lilium L. · Lily
GEBR VLETTER and DEN HAAN
Prunus avium (L.) L. · Sweet cherry
SYuBAROVA E'MMA PETROVNA / SULIMOVA RAISA MITROFANOVNA / VYShINSKAYa MARIYa IVANOVNA / ZhUK VANDA STANISLAVOVNA
Triticum aestivum L. · Bread wheat
Cseuz Laszlo / Bona Lajos / Pauk Janos / Fonad Peter / Ovari Judit / Papp Maria / Beke Bela / Purnhauser Laszlo
Paulownia Sieb. et Zucc. · Empress tree
WEGROW GERMANY GMBH