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Considering that Magnifica is probably a triploid (rugosa is diploid, Hybrid perpetuals are tetraploid), crossing a triploid with a tetraploid probably results in a tetraploid. Right? That might make Linda Campbell useful for breeding with modern tetraploid roses.
'Anytime' has a faint blue eye, and Magnifica is mauve, which would make Linda a carrier for some interesting lavender genetics.
Maybe crossing this with a triploid rugosa would give a tet, and it would be basically mostly a rugosa. Rose a Parfum De L'Hey, a triploid, might give basically a tetraploid rugosa. With some modern features. I have heard that it's not as sterile as it is said to be.
I imagine also crossing these with Eyes For You, or an Hulthemia line to bring out the eyezone and provide lavender enhancing flavone pigments. Imagine enhancing the blue eye of 'Anytime', and capturing it on a tetraploid rugosa. That would really correct a lot of issues with Blackspot.
I've heard that rugosas have rust issues in the South. In the North, though, there is no such thing as a better rose than a rugosa.
Pink Surprise or White Surprise, which incorporates bracteata genes that make them well adapted to the South, could probably fix some rust issues and they both bloom as well as any China. Pink Surprise blooms as well as mutabilis!
I have so many ideas that could revolutionize rugosa breeding. I will definitely get as many rugosas as I can. They are just so good. The plain species bloom as well as Knockout when well established, and it has a strong clove rose fragrance, and they are healthier too!
Getting a rugosa hybrid that is fully tetraploid is the first step. I'd love to use colchicine to induce some seedlings, but I don't know how to get it.
Can anyone determine where the information that the rose 'Linda Campbell' is susceptible to blackspot came from ? I checked all of the HMF references and comments and did not see anything that indicated that this rose has a problem with BS.
'Linda Campbell' has been totally clean in my mountain garden for more than a decade.
I checked the patent and all the photos and there was no mention of black spot. I have no idea of where it came from. Take it out Lyn - it will help keep your hand in, and we miss you.
I had it for a very long time, and only parted with it to make room for breeding stock. It's a great rose.
If anyone out there is thinking about getting Robusta, don't. Just get Linda Campbell. LC has 80% or so less prickles, has neat fuzzy stems, and is not a blackspot magnet like Robusta. LC is also a cuttable rose, and the plant architecture is more rounded and even. Robusta, on the other hand, is a fountain of demonic thorns, with blooms at the tips.
