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'Omar Khayyám' rose Reviews & Comments
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(1048 – 1131), philosophe, mathématicien, astronome et poète perse
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Initial post
12 OCT 19 by
Hardy
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For years I wondered what could give this rose such pointy, un-fedtschenkoana leaflet shape, and such a strange growing habit. Then I grew out a bunch of Autumn Damask selfings, and while most look much like their parent, one looks quite a lot like Omar Khayyam. Stranger still, that selfing seems to be almost completely immune to blackspot. It amazes me that, after 3500 years, R. damascena's genetics still hold surprises.
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#1 of 1 posted
13 OCT 19 by
 jedmar
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I have read the article of Iwata et al. on the "Triparental origin of the Damask rose" and the inclusion of R. fedtschenkoana among the parents seems to me rather unscientific. Some sequences apparently correspond to R. fedtschenkoana. What is missing however is a comparison of the DNA of R. fedtschenkoana with other members of the R. webbiana group, to ascertain if they have common gene strands. Iwata was apparently intent on Hurst's theories and disregarded other options. I would have looked closely at e.g. R. beggeriana, habitat fits better with that of R. moschata and which is to date grown in Central Asia for decoration and hips. R. beggeriana has the same reblooming character as R. fedtschenkoana.
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