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.
Rhododendron simsii Planch. · Indica azalea
Reiner Thomas
Prunus avium (L.) L. · Sweet cherry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Chrysanthemum L. · Chrysanthemum
Pirko Inna Fedorivna, Pel`tikhina Raisa Ivanivna,
Clematis L. · Clematis
Uno Kivistik, Aili Kivistik
Rhododendron simsii Planch. · Indica azalea
HOLZ| Hans-Peter Holz
Diospyros kaki L. f. · Persimmon
Pasenkov Arkadii Konstiantynovych (posmertno)
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Cynodon dactylon (L.) Pers. · Bermuda grass
JOHNSTON SEED COMPANY
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Seliukh IUrii Omel`ianovych, Diakov Anatolii Andriiovych,
Corylus avellana L. · Common hazel
INCONNU (FR)
Galega orientalis Lam. · Eastern goat's rue
Shymans`ka Oksana Vasylivna, Rakhmetov Dzhamal Bakhlulovych, Stadnichuk Nina Oleksandrivna,
Clematis L. · Clematis
Uno Kivistik, Aili Kivistik
Juglans regia L. · Persian walnut
Information not available - Contact NL authorities
Allium L. · Ornamental Allium
W. van Lierop & Zonen B.V.
Rosa L. · Rose
Gaec Reuter Freres (FR)
Prunus domestica L. · European plum
INCONNU (FR)
Calluna vulgaris (L.) Hull · Common heather
KRAMER KURT| Kurt Kramer (Heidezuechtung)
Rosa x damascena Mill. · Damask rose
R. Raev, N. Kovacheva
Rosa L. · Rose
Mark Gergely / Mark Gergelyne
Brassica napus L. · Rapeseed
Raps GbR Saatzucht Lundsgaard
Malus domestica (Suckow) Borkh. · Apple
Voloshyna Varvara Volodymyrivna, Ovcharenko Svitlana Viktorivna, Chupryniuk Viktor IAkovych,
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Rosa L. · Rose
Gaec Reuter Freres (FR)
Brassica napus L. · Rapeseed
Rustica Prograin Genetique