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'Bleu Magenta' rose Reviews & Comments
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Initial post
1 OCT by
 Usami
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It would be so cool if DNA testing could be done to confirm if this is indeed a cross between Veilchenblau and Reine des Violettes. Per the suggestion that this rose may be the same as 'Mme. E. Rocque'... What a twofer cross!
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Bonjour,
La référence aux Grandes Roseraies du Val de Loire est erronée concernant la date d'obtention de 'Bleu magenta' et le nom de l'obtenteur. Il faut lire entre les lignes pour voir que ce qu'ils appellent "nouveautés" signifie nouveauté dans leur commercialisation, pas la date d'obtention. D'ailleurs, les gens qui ont fait une recherche sur cette rose arrivent aux dates de 1900-1910, pas les années 1930. Dans les nouveautés de 1933 du catalogue de 1935 figurent des roses de Lens, Pernet-Ducher, Barbier ...
Amicalement,
Daniel
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Reply
#1 of 1 posted
15 NOV 21 by
jedmar
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Grandes Roseraies est mentionné comme obtenteur car c'est la plus ancienne mention connue à nous. Si vous connaissez des références antérieures à 1910, nous pouvons corriger cela. Peut-être avez-vous les catalogues Barbier?
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Journal of Agricultural and Food Chemistry 51: 4990-4994. (2003)
Origin of the Color of Cv. 'Rhapsody in Blue' Rose and Some Other So-called “Blue” Roses.
Jean-François Gonnet
Cyanin is probably "trapped" into AVIs at higher concentrations than would be possible in a vacuolar solution and in quinonoidal form, appearing purple-blue because of additional absorption in the 580-630 nm area. Quite similar pigmentation features were found in very ancient rose cultivars (cv. L’Evêque or Bleu Magenta), also displaying this type of so-called "blue" color.
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Graham Stuart Thomas. CLIMBING ROSES OLD & NEW, published 1965 Aldine Press, Letchworth, Herts.
p.64
Bleu Magenta. This rose reached me from the Roseraie de l'Haÿ near Paris, but I have been unable to trace the name anywhere. This is unfortunate, since it is that largest in flower and the richest in colour of the purplish ramblers. Fully double the flowers in dense clusters, darkest violet-crimson fading tom dark parma-violet and grey, with an occasional white fleck. Practically scentless. Shining dark green leaves on nearly thornless green wood. An effective garden plant. About 15 feet. The last to flower of the purple ramblers.
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Thanks again Andrew.
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