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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.

Prose

Active

Rosa L. · Rose

SWANES NURSERIES AUSTRALIA PTY LTD, Prophyl Pty Ltd.

4 records

Pmn06

Active

Agapanthus praecox subsp orientalis (F.M. Leight) F.M. Leight. · Common agapanthus

Maxwell John|Brassall, AU / Craigie Gail Alexis|Brassell, AU

5 records

Rosa L. · Rose

Poulsen Roser A/S

6 records

Heuchera L. · Coral Flower

Sandrine Delabroye

4 records

Rosa L. · Rose

Poulsen Roser A/S

4 records

Astilbe Buch.-Ham. ex D. Don · False goat's beard

Wilhelmus Franciscus van Veen

4 records

Rosa L. · Rose

Poulsen Roser A/S

4 records

Rosa L. · Rose

Poulsen Roser A/S

5 records

Radprov

Active

Rosa L. · Rose

William J. Radler

5 records

Rosa L. · Rose

Poulsen Roser A/S

4 records

Rosa L. · Rose

Poulsen Roser A/S

4 records

Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch · Lindheimer's beeblossom

Plant Growers Australia Pty Ltd

4 records

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

Hansen Hans A

4 records

Corydalis flexuosa Franch.

John Gifford Hillier

5 records

Rosa L. · Rose

Poulsen Roser A/S

5 records

Rosa L. · Rose

Poulsen Roser A/S

5 records

Rosa L. · Rose

Poulsen Roser A/S

4 records

Heuchera L. · Coral Flower

Janet N. Egger

4 records

Syringa L. · Lilac

van Nijnatten Andre Franciscus

4 records

Odessa

Active

Spiraea japonica L. f. · Japanese meadowsweet

Herman Geers

5 records

Paris

Active

Heuchera L. · Coral Flower

Janet N. Egger

4 records

Petacas

Active

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

4 records

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