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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.

Muster

Active

Ligustrum ibota Siebold

Johann Muster

2 records

Orange Star

Active

Pyracantha coccinea M. Roem. · Firethorn

Van der Sar V.O.F.

2 records

Notwoodthree

Active

Hibiscus syriacus L. · Rose of Sharon

Woods Roderick

2 records

PEWZ0002

Terminated

Penstemon Schmidel. · Beard Tongue

Syngenta Crop Protection AG

2 records

Noectwo

Active

Echinacea Moench. · Coneflower

Marco van Noort Breeding B.V.

2 records

Monbebr

Active

Monarda L. · Bee balm

Holtmaat Henricus Maria Joseph

2 records

Mister Morse

Active

Brunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss

Chris Ghyselen

2 records

NIRPAYRED

Active

Rosa L. · Rose

Alessandro Ghione

2 records

Ningbo

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Cornelis Pieter Eveleens

2 records

New Old Yella

Active

Hibiscus coccineus x Hibiscus moscheutos L.

Zwetzig Gretchen

2 records

Minspot

Active

Hibiscus syriacus L. · Rose of Sharon

Hortival Diffusion S.A.S.

3 records

Now Cheesier

Active

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

HARINI KORLIPARA

2 records

Pathos

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

2 records

Mystic Mist

Active

Tiarella L. · Foamflower

Janet N. Egger

2 records

MVNC1823

Active

Coreopsis grandiflora Hogg ex Sweet · Large-flowered tickseed

van Noort Marco

3 records

Millennium Gold

Active

Rhododendron L. · Azalea

BOOMTEELTPRAKTIJKONDERZOEK

2 records

Opstal102

Active

Abelia x grandiflora Rehder · Glossy abelia

van Opstal Ron

2 records

OPLOO1

Active

Photinia x fraseri Dress · Fraser's photinia

ALEXANDER A.A.M. VAN OPLOO

2 records

Monument

Active

Quercus robur L. x Quercus macranthera Fisch. & C. A. Mey. ex Hohen.

Uniwersytet im. Adama Mickiewicza - Ogrod Botaniczny

2 records

Mojito

Active

Astilbe japonica (C. Morren & Decne.) A. Gray · Japanese astilbe

van der Meer Hans

2 records

OENE

Active

Taxus x media Rehder · Anglo-Japanese yew

Handelskwekerij de Buurte B.V.

2 records

Obelisk

Active

Amelanchier Medik. · Juneberry

DE BELDER J

2 records

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