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.

Big Top Burgundy

Withdrawn

Heuchera L. · Coral Flower

Witteman & Co. Multiflora B.V.

1 record

Captain Osorno

Active

Zantedeschia Spreng. · Arum-lily

Kapiteyn Breeding B.V.

1 record

Astra

Active

Rubus arcticus L. · Arctic raspberry

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

1 record

Arto

Active

Vaccinium L. · Bilberry

Luonnonvarakeskus / Natural Resources Institute Finland (Luke)

2 records

CAMKEEP

Withdrawn

Buddleja davidii Franch. · Butterfly bush

ELIZABETH KEEP

1 record

Baroque Angel

Terminated

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Frauke Engel

1 record

Angel Heart

Application submitted

Senecio candidans DC.

FLOWERZONE INTERNATIONAL LTD

1 record

ANEM078LES

Active

Anemone x lesseri H. R. Wehrh.

Henk Holtmaat

1 record

Bee Sweet

Active

Hydrangea paniculata Siebold · Panicled hydrangea

Mike Dofferhoff^^^Hans Dofferhoff

1 record

BCL 1683

Withdrawn

Clematis L. · Clematis

Kimmo Rumpunen

1 record

Brush

Active

Molinia caerulea (L.) Moench · moor grass

Petrus Hendricus Oudolf

2 records

Bvctiplo Lilac

Terminated

Chrysanthemum L. · Chrysanthemum

Pierre Bernard^^^François Bernard

1 record

Balsomstor

Withdrawn

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

Jianping Ren

1 record

Balsompocel

Active

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

Jianping Ren

1 record

Balscmelux

Application submitted

Hybrids between Echinacea purpurea (L.) Moench and Echinacea paradoxa (Norton) Britton

Jianping Ren

1 record

Bariton

Terminated

Lilium L. · Lily

Sande B.V.

1 record

Balroxleam

Withdrawn

Digitalis x fulva Lindl.

Paul Gehrke

1 record

Briots Menhir

Withdrawn

Ilex aquifolium L. · Common holly

H. Zintel Jr. V.O.F.

1 record

Captain Nescio

Active

Zantedeschia Spreng. · Arum-lily

Kapiteyn Breeding B.V.

1 record

Balmirrobi

Active

Salvia greggii A. Grey · Autumn sage

Rolando Solano Ramirez

1 record

Barcelona Jogger

Terminated

Chrysanthemum L. · Chrysanthemum

Luc Pieters

1 record

Braque

Terminated

Chrysanthemum L. · Chrysanthemum

PETER WAIN

1 record

Bright Day

Active

Narcissus tazetta L.

Bloembollenkwekerij Firma Veul V.O.F.

1 record

Briform

Withdrawn

Hakonechloa macra (Munro) Makino · Japanese forest grass

Lynne Allene Caton

1 record

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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

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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.