KORforst750
ActiveRosa L. · Rose
Wilhelm Kordes^^^Tim-Hermann Kordes^^^John Vincent Kordes
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.
Rosa L. · Rose
Wilhelm Kordes^^^Tim-Hermann Kordes^^^John Vincent Kordes
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
Eurosa Bernhard Mehring
Salvia L. · Sage
Petrus Hendricus Oudolf
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Hibiscus syriacus L. · Rose of Sharon
Pineau Patrick
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Prunus salicina Lindl. · Japanese plum
Yossef Ben Dor
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Astilbe Buch.-Ham. ex D. Don · False goat's beard
Wilhelmus Franciscus van Veen
Heuchera L. · Coral Flower
Janet N. Egger
Hydrangea paniculata Siebold · Panicled hydrangea
Possemiers Johan
Iberis L. · Candytuft
RODNEY RICHARDS
Hydrangea paniculata Siebold · Panicled hydrangea
Schoemaker Alex Frederick
Rosa L. · Rose
WILHELM-ALEXANDER KORDES
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Deutzia
IAN JOHN ASHTON
Rosa L. · Rose
Tomerlin Reggie Joe|Los Angeles, CA 90041, US
Rosa L. · Rose
Wilhelm Kordes^^^Tim-Hermann Kordes^^^John Vincent Kordes
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Geranium L. · Crane's Bill
Marcus Wilhelmus Gerardus van Noort
Rosa L. · Rose
WILHELM-ALEXANDER KORDES
Hydrangea paniculata Siebold · Panicled hydrangea
Alex Schoemaker Living Creations Holding B.V.
Hydrangea paniculata Siebold · Panicled hydrangea
Schoemaker Alex Frederick