Variety traits
Winter hardiness is a complex indicator of a variety's ability to remain viable throughout the winter and early spring periods, including resistance to frost and other environmental stress factors.
Mentioned in descriptions 27 261 varieties reference book.
Winter hardiness is a complex plant characteristic that includes resistance to freezing, smothering, waterlogging, frost heaving, and winter desiccation. Unlike frost resistance, which is limited to tolerance of low temperatures, winter hardiness takes into account the entire spectrum of adverse effects that lead to plant death or damage during the cold period.
The winter hardiness of a variety is evaluated using methods of field assessment of crop conditions after winter, employing scoring scales, as well as laboratory studies. The latter include direct freezing of plant monoliths, biochemical analyses of sugar accumulation, verification of the viability of the tillering node, and the use of genetic markers to determine resistance.
The level of winter hardiness depends on the genetic potential of the variety, the plant's ability to harden, agronomic cultivation practices, and the microclimate characteristics of a specific site. When choosing a variety, one should focus on regionalized forms, bearing in mind that the resistance indicator is relative and requires comparison with local standards and growing conditions.
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.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
van Zoest B.V. Andre|Reeuwijk 2811 PS, NL
Parthenocissus quinquefolia (L.) Planch. · American-ivy
Szczepan Marczyński
Rosa L. · Rose
Weeks Roses Inc (US)
Rosa L. · Rose
Weeks Roses Inc (US)
Rosa L. · Rose
Weeks Roses Inc (US)
Lavatera L. · Tree mallow
Lommerse, Jan
Clematis L. · Clematis
Szczepan Marczyński
Linum usitatissimum L. · Common flax
Terre de Lin S.C.A.
Festuca pratensis Huds. · Meadow fescue
Graminor AS, N-2322 Ridabu
Prunus avium (L.) L. · Sweet cherry
Sandor Brozik - János Apostol
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Alstroemeria L. · Alstroemeria
Konst Alstroemeria BV
Agrostis canina L. · Velvet bent
DLF SEEDS A/S
Malus domestica (Suckow) Borkh. · Apple
VNII SELEKCZII PLODOVYX KULTUR
Poa annua L. · Annual bluegrass
DLF SEEDS A/S
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
x Triticosecale Wittm. ex A. Camus · Triticale
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Malus domestica (Suckow) Borkh. · Apple
Lilium L. · Lily
Mak Nicolaas Aloysius Maria|'t Zand, NL
Triticum aestivum L. · Bread wheat
Saatzucht Josef Breun GdbR (DE)
Lilium L. · Lily
Mak Nicolaas Aloysius Maria
Hordeum vulgare L. · Barley
Syngenta Participations AG
Agrostis capillaris L. · Common bent
DLF SEEDS A/S