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.

Tiny Robin

Active

Lilium L. · Lily

Mak 't Zand B.V.

1 record

Trapezundski

Terminated

Corylus avellana L. · Common hazel

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Tiny Epic

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

2 records

Tracy sun

Withdrawn

Prunus L. · Plum

CHAMBERLIN THOMAS O.

1 record

Turgenevka

Protection expired

Prunus domestica L. · European plum

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

1 record

Tiiu

Active

Clematis L. · Clematis

Uno Kivistik, Aili Kivistik

1 record

TrÃ¨s fine danoise

Active

Allium schoenoprasum L. · Chives

Domaine Public (FR)

1 record

TURCALISA

Active

Alstroemeria L. · Alstroemeria

Pierre TURC & Fils SARL (FR)

1 record

Tibet

Terminated

Lonicera nitida Wils. · Boxleaf honeysuckle

Oliver Schurmann

1 record

Tiny Double Dutch

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Tsvit Kalyny

Terminated

Triticum aestivum L. · Bread wheat

Starychenko Vasyl Mykolaiovych, Koval` Ol`ha Hryhorivna, Buriak Vasyl` IUkhymovych,

2 records

Torrild/Torrild

Terminated

Triticum aestivum L. · Bread wheat

ERIK TYBIRK

2 records

Theresa

Terminated

Calluna vulgaris (L.) Hull · Common heather

Paul Wolf / Werner Wolf

1 record

Terano

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

PARATY B.V.B.A

1 record

TOMS

Terminated

Rhododendron L. · Azalea

RIHARDS KONDRATOVICS

1 record

TH2

Application submitted

Medicago sativa L. · Alfalfa

GREAT PLAINS RESEARCH COMPANY

1 record

Titus 71

Terminated

Trifolium pratense L. · Red clover

Saatzucht Steinach GmbH (DE)

1 record

Tribute

Terminated

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Livestock and Seed Division (US)

1 record

Tiny Ink

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Trendy Havana

Active

Lilium L. · Lily

W. van Lierop & Zonen B.V.

1 record

TC Sun 2

Active

Prunus salicina Lindl. · Japanese plum

Budzynskyi Oleksandr Serhiiovych,Yarmoliuk Ivan Savych,

2 records

Thornfree ISK

Terminated

Rubus L. subg. Rubus · Blackberry

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

1 record

Tamara

Terminated

Chaenomeles x californica W. B. Clarke ex C. Weber

Mezhenskyi Volodymyr Mykolaiovych

2 records

TANORSTAR

Protection expired

Rosa L. · Rose

Mathias Tantau (DE)

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.