Variety traits

Winter hardiness

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.

Sources10

Breakdown by crop

Winter Hardiness of Roses 555 Winter hardiness of common wheat 220 Winter hardiness of apple trees 188 Winter Hardiness — Hydrangea macrophylla 187 Pear Winter Hardiness 123 Winter hardiness — perennial ryegrass 120 Winter Hardiness of Lily 91 Winter hardiness of winter rapeseed 81 Peach winter hardiness 71 Plum Winter Hardiness 65 Winter Hardiness of Clematis 61 Grapevine Winter Hardiness 56 Winter hardiness of winter barley 56 Winter hardiness — garden strawberry 52 Winter hardiness of sweet cherry 48 Tulip winter hardiness 42 Heuchera winter hardiness 40 Winter Hardiness of Alfalfa 39 Chrysanthemum winter hardiness 39 Winter hardiness of triticale 36 Winter Hardiness of Apple 36 Winter hardiness of Hydrangea serrata 36 Grapevine Winter Hardiness 35 Winter hardiness of apricot 35

Found in these crops

Rose 1 062 Apple 843 Bread wheat 657 Lily 410 European pear 348 Bigleaf hydrangea 315 Peach 264 Rapeseed 258 European plum 245 Grapevine 229 Perennial ryegrass 224 Sweet cherry 223

Varieties that feature this in their description

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.

USHYD1604

Active

Hydrangea luteovenosa Koidz. x Hydrangea macrophylla (Thunb.) Ser.

Ushio Sakazaki

1 record

TAN00641

Terminated

Rosa L. · Rose

Hans-Juergen Evers

1 record

URIBL01

Withdrawn

Coreopsis L. · Tickseed

Kong Young Park

1 record

TNPENHR

Active

Penstemon hartwegii Benth. · Hartweg's beardtongue

Janet N. Egger

1 record

TKHYDPIN12

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Yasuhiro Takahashi

1 record

Sweet Grapes

Terminated

Penstemon Schmidel. · Beard Tongue

TERRA NOVA NURSERIES INC

1 record

Summer Snow

Withdrawn

Phyllostachys edulis (Carrière) J. Houz. · kikko-chiku

Bambuparque, Lda.

1 record

Tinos

Terminated

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

1 record

TAN12621

Active

Rosa L. · Rose

CHRISTIAN EVERS

1 record

Timezone

Terminated

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

1 record

Tumma

Active

Vaccinium L. · Bilberry

Maatalouden tutkimuskeskus (MTTK) (later: Maa- ja elintarviketaouden tutkimuskeskus (MTT)/ Present Luonnonvarakeskus (Luke))

2 records

String Theory

Application submitted

Amsonia ciliata Walter x A. hubrichtii Woodson

Hans A. Hansen

1 record

TNPENHPI

Active

Penstemon hartwegii Benth. · Hartweg's beardtongue

Janet N. Egger

1 record

Star Pink

Terminated

Aster L. · Aster

Chrysanthemum Breeders Association Research B.V.

1 record

Sunshine

Withdrawn

Ligustrum sinense Lour. · Chinese privet

Thomas P Mccracken

1 record

Tiny Pampa

Active

Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. · Pampas grass

Daylight Boomkwekerij V.O.F.

1 record

Tiny Jackpot

Terminated

Eryngium planum L. · Blue eryngo

René van Gaalen, FA. H.A. DE BOER

1 record

Tango

Terminated

Hosta Tratt. · Hosta

Gerardus J.C.M. Heemskerk

1 record

TAN97105

Terminated

Rosa L. · Rose

Hans-Juergen Evers

1 record

SUMS342CH

Active

Prunus avium (L.) L. · Sweet cherry

His Majesty the King in Right of Canada as represented by the Minister of Agriculture and Agri-Food

1 record

Sunny Day

Active

Astilbe x arendsii H. Junge · Arends astilbe

Henricus G.J. Verduin

1 record

TOLTAE

Terminated

Clematis patens C. Morren & Decne.

Ren Tanaka

1 record

Sucinto

Terminated

Lilium L. · Lily

Testcentrum voor Siergewassen B.V.

1 record

Suapc 1707

Application submitted

Hydrangea alternifolia Siebold x Hydrangea amamiohsimensis (Koidz.) Y. De Smet & C. Granados

Olivier Galéa

1 record

1 2 ... 351 352 353 354 355 356 357 ... 501 502 Next

Jump to page 72 143 215 254 287 344 359 364 430 454

Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.