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.
Lolium perenne L. · Perennial ryegrass
Beat Boller (CH)
Lolium multiflorum Lam. · Italian ryegrass
JOORDENS ZAADHANDEL
Festuca rubra L. · Red fescue
DLF Seeds A-S, DK
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
DLF-Seeds A/S
Secale cereale L. · Rye
SAATZUCHT STEINACH GMBH and CO KG
Prunus salicina Lindl. · Japanese plum
Weinberger, H.
x Triticosecale Wittm. ex A. Camus · Triticale
SAATZUCHT DR H C HEGE GBRMBH
Triticum aestivum L. · Bread wheat
NITA ZYGMUNT O. STANISLAW / PLUCIENNICZAK ELZBIETA, TERESA O JAN / PAKULSKA HANNA O. TADEUSZ / RYDZEWSKI JAN O. FRANCISZEK / BLASZCZAK WOJCIECH O. WLADYSLAW / BLASZCZAK MARIA O, MARIAN / JOACHIM KRZYSZTOF O. KRZYSZTOF
Lolium multiflorum Lam. · Italian ryegrass
ROBERTO GUARNIERI
Vaccinium corymbosum L. · Highbush blueberry
University of Florida
Trifolium pratense L. · Red clover
Lantmannen ek for, SE 268-81 Svalov
Festuca rubra L. · Red fescue
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
Delley Seeds and Plants
Festuca pratensis Huds. · Meadow fescue
Lietuvos agrarinių ir miškų mokslų centras
Prunus persica (L.) Batsch · Peach
United State Department of Agriculture - Georgie (US)
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Trifolium pratense L. · Red clover
Saatbau Linz OÖ. Landes-Saatbaugen. reg.Gen.m.b.H.
Sinapis alba L. · White mustard
ILVO-PLANT 39
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Linum usitatissimum L. · Common flax
Laboulet Semences, FR
Malus domestica (Suckow) Borkh. · Apple
Prof. Jaroslav Tupy c/o Institute of Experimental Botany
Hordeum vulgare L. · Barley
SAATZUCHT JOSEF BREUN GMBH and CO.KG
Lolium perenne L. · Perennial ryegrass
Zelder Holland(NL)