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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

Found in these crops

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.

Echeveria DC. · Echeveria

Novoami B.V.

2 records

1808MAGENTA

Application submitted

Buddleja davidii Franch. · Butterfly bush

CHARLES VALIN

2 records

FORLEV03

Active

Lavandula angustifolia Mill. · English lavender

BURPEE NL B.V.

2 records

Aronia melanocarpa (Michx.) Elliott · Black chokeberry

Tomas Lagerström

2 records

Helleborus x sahinii Grimshaw

HilverdaKooij B.V

2 records

Rosa L. · Rose

Pheno Geno Rose D.O.O.

2 records

CBO041

Active

Campanula portenschlagiana Schult. · Dalmatian bellflower

Gartneriet Thoruplund A/S

2 records

Sempervivum arachnoideum L. · Cobweb houseleek

BELGICACTUS B.V.B.A.

2 records

851C

Active

Rhododendron L. · Azalea

Peter Cox, Kenneth Cox

2 records

Zenith

Active

Rubus idaeus L. · Red raspberry

STATENS PLANTEAVLSFORSØG, AFD. F. FRUGT & GRØNSAGER

DK
4 records

Zimur

Application submitted

Hordeum vulgare L. · Barley

SERKIN NIKOLAJ VIKTOROVICh / ShEVTSOV VIKTOR MIHAJLOVICh / KUZNETSOVA TAMARA EVGEN'EVNA / GRUNTSEV YuRIJ ALEKSANDROVICh / VASYuKOV PAVEL PETROVICh / KREMZINA OL'GA MIHAJLOVNA / FOMENKO NINA PANTELEEVNA / OSTANINA TAMARA VITAL'EVNA / ChUMAK VASILIJ MIHAJL

UA
3 records

Zari

Active

Festuca rubra L. · Red fescue

DLF Seeds A-S, DK

FR
2 records

Zanta

Terminated

Fragaria L. · Strawberry

Ferdinant de Pauw

UA
2 records

Žiemiai

Active

Allium sativum L. · Garlic

Lietuvos agrarinių ir miškų mokslų centras

LT
2 records

Thuja occidentalis L. · Northern white-cedar

Dariusz Kapias

PL
2 records

Xenia

Terminated

Ribes uva-crispa L. · Gooseberry

Wicki Hans

UA
3 records

Cotinus coggygria Scop. · European smoketree

HENDRIK KOLSTER

NL
3 records

Witos

Active

Malus domestica (Suckow) Borkh. · Apple

Szkola Glowna Gospodarstwa Wiejskiego

PL
4 records

Zodiak

Active

Brassica napus var. napus · Rapeseed

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

PL
3 records

Muscari · Grape hyacinth

Boltha B.V.

NL
2 records

Zane

Active

Malus domestica (Suckow) Borkh. · Apple

R.Dumbravs, L.Ikase

LV
2 records

Prunus domestica L. · European plum

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

PL
3 records

Ribes rubrum L. · Redcurrant

Information not available - Contact NL authorities

NL
2 records

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