Variety traits
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.
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.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Lemoine
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Muscari · Grape hyacinth
Bentem Bluefields/Maveridge Licensing B.V.
Allium litvinovii Drobow ex Vved.
Gebr. Valkering B.V.
Rosa L. · Rose
Charles BROIZAT (FR)
Campanula L. · Bellflower
Alieksieienko Oksana Volodymyrivna, Vol`s`ka IUliana Oleksandrivna,
Petroselinum crispum (Mill.) Nym. ex A.W. Hill var. tuberosum (Bernh.) Mart Crov. · Hamburg parsley
FDB FRØ
Tulipa L. · Tulip
Vertuco B.V.
Ginkgo biloba L. · Ginkgo
Uniwersytet Przyrodniczy w Poznaniu
Tulipa L. · Tulip
Maveridge Licensing B.V.
Dactylis glomerata L. · Cocksfoot
Zhapaleu Halyna Zinoviivna, Buhaiov Vasyl Dmytrovych, Khom'iak Mariia Mykhailivna, Baistruk-Hlodan Lesia Zinoviivna, Konyk Hryhorii Stanislavovych,
Leucojum aestivum L. · loddon-lily
A. Verschoor Bloembollen B.V.
Rubus idaeus L. · Red raspberry
Dmytriiev Volodymyr Ihorovych
Tulipa L. · Tulip
G. Buis Bloembollen B.V.
Fragaria moschata Weston · hautbois strawberry
Information not available - Contact NL authorities
Lilium L. · Lily
World Breeding B.V
Vaccinium corymbosum L. · Highbush blueberry
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Prunus domestica L. · European plum
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Muscari · Grape hyacinth
Paul van Bentem Bloembollen B.V.
Tulipa L. · Tulip
Meulen
Lilium L. · Lily
Mak Breeding Rights B.V.
Ribes nigrum L. · Blackcurrant
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Triticum aestivum L. subsp. aestivum · Bread wheat
MEINEL| Dr. Albrecht Meinel in Fa. NORDSAAT Saatzuchtgesellschaft mbH
Tulipa L. · Tulip
Vertuco B.V.