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.
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
UNIVERSITY OF CALIFORNIA WOLFSKILL EXPERIMENTAL ORCHARD
Rubus L. subg. Rubus · Blackberry
THOMPSON ELLEN / CLARK JOHN REUBEN / AGUAS-ALVARADO MARIO
Malus domestica (Suckow) Borkh. · Apple
Smith, T., Smith, M. A.
Prunus persica (L.) Batsch · Peach
United State Department of Agriculture - Georgie (US)
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Rosa L. · Rose
Reinhard Noack
Lilium L. · Lily
VLETTER FLORIS| Floris Vletter
Pisum sativum L. · Pea
INSTITUTE OF FIELD AND VEGETABLE CROPS
Brassica napus var. napus · Rapeseed
Euralis Semences, F
Rosa L. · Rose
TANTAU NACH| Rosen Tantau Mathias Tantau Nachfolger
Dianthus x allwoodii hort. · Allwood pink
Whetman Pinks
Dianthus L. · Carnation
Carolyn Grace Bourne
Vitis vinifera L. · Common grape vine
Bezotosna Mar'iana Ihorivna
Hydrangea paniculata Siebold · Panicled hydrangea
WIM RUTTEN
Olea europaea L. · Olive
Sonnoli Attilio
Clematis L. · Clematis
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Saphinov S.N.C.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
RUTH KOBAYASHI
Helleborus L. · Christmas Rose
Roger Harvey, Harvey Garden Plants
Libertia ixioides (G. Forst.) Spreng.
NATURALLY NATIVE NEW ZEALAND PLANTS LTD
Thuja occidentalis L. · Northern white-cedar
Sidhu Gurjit
x Mangave D. Klein · Mangave
Hansen Hans A
Hydrangea arborescens L. · Smooth hydrangea
MICHAEL A DIRR
Triticum aestivum L. · Bread wheat
W. von Borries-Eckendorf GmbH & Co.KG
Rosa L. · Rose
Luciano Ghione