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.

Black Spider

Active

Lilium L. · Lily

Mak Breeding Rights B.V.

1 record

Snow Star

Terminated

Rosa L. · Rose

Leendert de Kloe

1 record

Romy

Active

Calluna vulgaris (L.) Hull · Common heather

Helmut Hiedl

1 record

Summer TV76

Active

Lavandula stoechas L. · French lavender

BG Breeding ApS

1 record

Tyann

Withdrawn

Erica x darleyensis Bean · Darley heath

Pépinières Renault S.A.R.L.

1 record

Topstar Plus

Active

Prunus domestica L. · European plum

JACOB HELMUT DR.

2 records

Porto

Terminated

Campanula portenschlagiana Schult. · Dalmatian bellflower

Robertus J. Ten Have

1 record

Nectarbuzz

Active

Prunus persica (L.) Batsch · Peach

Agro Selections Fruits S.A.S.

2 records

MINSYBFCBLE17

Active

Hibiscus syriacus L. · Rose of Sharon

Hortival Diffusion S.A.S.

1 record

Louise

Active

Calluna vulgaris (L.) Hull · Common heather

Edens Creations B.V.

1 record

LEL C01

Withdrawn

Cordyline Comm. ex Juss. · Palm lily

Lyder Enterprises Ltd.

1 record

H 1116

Active

Lavandula stoechas L. · French lavender

Kwekerij Arends Paterswolde B.V.

1 record

B4 2016.10.17

Application submitted

Rhaphiolepis indica (L.) Lindl. ex Ker Gawl. · Indian hawthorn

Eigo Yamashita

1 record

Zolotystyi

Active

Triticum durum Desf. · Durum wheat

Nesterova Natalia Havrylivna, Molodchenkova Olha Olehivna, Babaiants Olha Vadymivna, Rybalka Oleksandr Illich, Lytvynenko Mykola Antonovych, Kozlov Viktor Volodymyrovych, Albul Anatolii Oleksiiovych, Palamarchuk Anatolii Ivanovych,

2 records

Żółwińska Wielkolistna

Withdrawn

Morus alba L. · White mulberry

Instytut Włókien Naturalnych i Roślin Zielarskich Państwowy Instytut Badawczy

1 record

Złotówka

Terminated

Chamaecyparis lawsoniana (A. Murray bis) Parl. · Lawson's cypress

Michal Kaluzinski

1 record

Zolotokolosa

Active

Triticum aestivum L. · Bread wheat

Marynka Svitlana Mykolaivna, Shelepov Volodymyr Vasyl`ovych, Chebakov Mykola Petrovych, Vlasenko Volodymyr Anatoliiovych, Ulich Oleksandr Leonidovych, Artemchuk Iryna Petrivna, Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych,

2 records

Zeva remontante

Terminated

Rubus idaeus L. · Red raspberry

Station de Recherche de Wadenswil (CH)

1 record

Zirochka

Terminated

Diospyros kaki L. f. · Persimmon

Khokhlov Serhii IUriiovych, Panenkova Arkadii Kostiantynovych,

2 records

Zenta

Active

Rosa L. · Rose

Mark Gergely

2 records

Zamozhnist`

Terminated

Triticum aestivum L. · Bread wheat

Marinin Liubov Ivanivna, Kostiuk Stanislav Vasyl`ovych, Lytvynenko Raisa Ivanivna, Maksymov Mykola Havrylovych, Reshetnikova Valentyna Semenivna, Ptashenchuk Oleksandr Mykytovych, Lytvynenko Mykola Antonovych, Honcharuk Nina Oleksandrivna,

2 records

Žilinai

Protection expired

Ribes uva-crispa L. · Gooseberry

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

1 record

Zelmira

Active

Lilium L. · Lily

The Originals B.V.

1 record

Zeus

Terminated

Chrysanthemum x morifolium Ramat. · Florist's daisy

CHRYSANTHEMUM BREEDERS ASSOCIATION N.V

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.