Rose Hybridizers Association Forum

I think it's a mistake to assume that Rosa moschata has KSN_wild. It seems you are right about that. According to the paper https://www.actahort.org/books/1232/1232_4.htm, Rosa moschata as well as Rosa rugosa problably has KSN_181, not KSN_wild, but both alleles only differ in a very small way from...

I think it's a mistake to assume that Rosa moschata has KSN_wild. 'Champney's Pink Cluster' (which was the original cross between R. moschata and R. chinensis 'Old Blush'; I wonder... in the paper https://www.nature.com/articles/s41477-018-0166-1/ table 2 says that R. Moschata is "recurrent bloomin...

Is R. moschata hardy for you? It starts blooming later, but keeps going until frost. Perhaps that crossed with something cold-hardy, then selfed, would give something that would work. I wonder where Blush Noisette got its rebloom from.. from Old blush or from moschata. Assuming rosa moschata has th...

What of rosa spinossisima? Where does that rebloom at the end of the summer comes from?

Interesting Stefan! Did you use mutabilis as a pollen parent? So alba x mutablis, expected pentaploid and then rugosa x mutabilis expected diploid? I have tried to use mutabilis last year as a sees parent with rugosa but none of these crosses take. Only a few seeds between mutabilis x palustris. Hop...

https://www.actahort.org/books/1064/1064_21.htm I have looked for more recent studies and have gone through many from Asia, but I can only read so many without going cross-eyed. Perhaps someone else can find an update, if there is one. https://www.researchgate.net/profile/Koji_Kawamura/publication/...

Hmmmm, I wonder if "PKO" has been trademarked in the EU? the name of the rose is protected as "Zepeti". https://euipo.europa.eu/eSearch/#basic/1+1+1+1/100+100+100+100/zepeti The rose itself is also registered at the CVPO: https://public.plantvarieties.eu/publicConsultationDetails?registerId=2017234...

https://www.globalagriculture.org/whats ... n%20Europe.

For those who are interested, the situation in Europe made an U turn last year. Who knows, if you can convince your MPs to do the same in the USA? https://www.euractiv.com/section/agriculture-food/news/european-patent-office-endorses-eus-stance-on-conventionally-bred-plants/ "In its new opinion, the...

In most of the Monsanto trials, they tested for their marker genes then sued and it was up to the defendants to prove they DIDN'T plant Monsanto seeds. IF the patented plant contains marker genes, they can test for those genes. Hey Kim, alright. This I understand but that is only possible if geneti...

One of the things I wonder about is, where is the burden of proof? Imagine I use one of the parents of this rose in my breeding program and therefor I get roses with the same kind of resistance. Suddenly they suspect something and do a DNA test. They will find out that a certain amount of DNA is equ...

I can only recommend :-)
Please make a fb account and join the group!! :-)

I read in the paper that KORbin, aka Iceberg is resistant to rust (phragmidium tuberculatum). It would be interesting to know if it got it's resistance from Robin Hood (might be likely since it is classified as a moschata??) or Virgo.

I'm curious. Did the rose gave flowers this year? A new mini yellow rugosa hybrid?

I find this quite an interesting topic. I noticed that alba roses will easily get rust. Also, rosa spinosissima at my coast gets rust. A very peculiar orange color btw... and when I visited Denmark 2 yeatrs ago, I found some other wild roses, probably rosa villosa, that were also affected by rust. I...

I have never seen such a Japanese beetle overhere but... I would think... if the beetles come from Japan, then there is a bigger chance that Japanese species roses are less susceptible to this insect. So I would look into rosa rugosa (hybrids) but maybe also into rosa multiflora hybrids?

https://denvergardeners.wordpress.com/2017/08/08/do-japanese-beetles-prefer-some-roses-more-than-others/ In the first year of this multi-year study, the following rose cultivars were not found to be damaged by Japanese Beetles: Angel Face, Debut, Hondo, Joseph’s Coat, Mardi Gras, Picotee, Popcorn, P...

There are some offspring now of Brite EyesTM. I don't think Sunny Knock Out inherited Rdr4 (we tested it for resistance to races 3, 8, and 9 and it was susceptible to 3, but Brites Eyes is resistant and it seems like there is just one key major gene resistance gene in Brite Eyes), but maybe its oth...

Do you know the roses 'Little Pet' and 'Félicité-Perpétue'? The last one is a climber, the first one is a mutation from it and and a mini rose, Félicité-Perpétue is only blooming once, while "Little Pet" is flowering all the time. Most of the dwarf roses flower continuously... So there are a few pos...

Overhere in Belgium we have 'Red Robin" and 'Pink Robin', two roses by Louis Lens, both R. helenae x Robin Hood. I don't know how hardy they actually are.