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.
Prunus domestica L. · European plum
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Lilium L. · Lily
World Breeding B.V
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Monrovia Nursery
Rosa L. · Rose
Raymond Richardier (FR)
Taxus baccata L. · European yew
Renke zur Mühlen
Prunus x gondouinii (Poit. & Turpin) Rehder · Duke cherry
INCONNU (FR)
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Calluna vulgaris (L.) Hull · Common heather
Hans-Peter Holz
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Domaine Public (FR)
Tulipa L. · Tulip
Vertuco B.V.
Lilium L. · Lily
De Jong Beheer B.V.
Malus domestica (Suckow) Borkh. · Apple
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Malus domestica (Suckow) Borkh. · Apple
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Chrysanthemum indicum L. · Indian chrysanthemum
Revecu BV (NL)
Erica x darleyensis Bean · Darley heath
KRAMER KURT| Kurt Kramer (Heidezuechtung)
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Clematis L. · Clematis
Uno Kivistik, Aili Kivistik
Tulipa L. · Tulip
Vertuco B.V.
Tulipa L. · Tulip
Marax COM B.V.
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Brassica napus L. · Rapeseed
Jutta Detering, Asmus Soren Petersen,
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Prunus avium (L.) L. · Sweet cherry
Radionov Oleksandr Petrovych, Duka Stepan Kharytonovych,
Vitis L. · Grapevine
Blattner Valentin (CH)