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Rosa × kordesii, or Rosa kordesii, is a red type of rose that arose naturally from hybridization followed by chromosome doubling. A hybrid between R. rugosa and R. lucieae was created called Rosa 'Max Graf', but it was diploid and nearly sterile, producing flowers but no fruit. This rose produced a few viable seeds as a result of self-pollination, and the seedlings that resulted were tetraploid instead of diploid, i.e., the chromosomes of both pollen and egg cells had been naturally duplicated. The tetraploid seedlings are amphidiploids. A selection with double deep pink flowers and repeat bloom, also called 'K01 AgCan' was released by W. Kordes' Söhne in 1951.
These tetraploid roses interbreed readily with one another, but not with their diploid ancestors.
Rosa × kordesii petal extract gel is stable for at least 3–4 months when stored at 5 and 25 °C. It is essential for collection of similar data for different plants and their flowers, as well as other parts. This proved activity of plant showed its importance and prophylactic utility in anti-solar formulation. This will be a better, cheaper and safe alternative to harmful chemical sunscreens that used nowadays in the industry.
Chabertia elegans · Needle Rose · Rosa abrica · Abutalybov's Brier · Abyssinian Rose · Dog Rose · Prickly rose · Rosa adenophylla · Fieldbriar · Rosa alabukensis · White rose of York · Rosa alberti
Text excerpted from the Wikipedia article Rosa × kordesii by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
