Search found 289 matches

by david zlesak
Sat Sep 22, 2018 9:07 pm
Forum: Rose Hybridizers Association Forum
Topic: Has anyone used Secret Garden Musk Climber in breeding?
Replies: 3
Views: 70

Re: Has anyone used Secret Garden Musk Climber in breeding?

Thank you David. Kim, your hybrids look great and from your descriptions it looks like they rebloom well. Does 'Secret Garden Musk Climber' only work well as a pollen parent, or does it set seeds too?
by david zlesak
Sat Sep 22, 2018 11:42 am
Forum: Rose Hybridizers Association Forum
Topic: Has anyone used Secret Garden Musk Climber in breeding?
Replies: 3
Views: 70

Has anyone used Secret Garden Musk Climber in breeding?

Has anyone used this rose in breeding? http://www.helpmefind.com/gardening/l.php?l=2.5674 Last night at the Twin Cities Rose Club meeting Lois Ann Helgeson talked about fragrance and brought cut stems of a lot of different roses from her garden as examples that she passed around. She grows this rose...
by david zlesak
Sun Sep 16, 2018 4:06 pm
Forum: Rose Hybridizers Association Forum
Topic: First-report-of-Rose-yellow-vein-virus-in-Turkey.pdf
Replies: 1
Views: 53

Re: First-report-of-Rose-yellow-vein-virus-in-Turkey.pdf

Thank you Henry!! That is interesting RYVV has been found in damask roses in Turkey. We first found it in a plant of 'Dr. Merkeley' in MN growing for decades in someone's landscape. There are a more than the viruses under the Rose Mosaic Virus umbrella out there. Part of how we found this and some o...
by david zlesak
Fri Aug 31, 2018 4:09 pm
Forum: Rose Hybridizers Association Forum
Topic: A miR172 target-deficient AP2-like gene correlates with the double flower phenotype in roses
Replies: 1
Views: 77

Re: A miR172 target-deficient AP2-like gene correlates with the double flower phenotype in roses

Thank you for posting this Henry!! It was a treat to visit their lab in Lyon last summer. Dr. Bendahmane coordinates a wonderful team of scientists and students. They did a great job better understanding how this major gene works that leads to double flowers in roses. The rose genome that is now ava...
by david zlesak
Fri Aug 31, 2018 2:41 pm
Forum: Rose Hybridizers Association Forum
Topic: Regarding ancestry
Replies: 10
Views: 310

Re: Regarding ancestry

Great point Matt! The range of ancestral contributions as we move forward in generations sure makes the possibilities and what we can find interesting.
by david zlesak
Mon Aug 27, 2018 9:33 am
Forum: Rose Hybridizers Association Forum
Topic: Remontancy
Replies: 24
Views: 1206

Re: Remontancy

I LOVE the work you are doing Joe. Hopefully reshuffling the genes of your hybrids in future generations will lead to many hardy, healthy, reblooming hybrids with beautiful flowers. Dr. Roger Mitchell a number of years ago (perhaps he still is an RHA member, I haven't heard from him in awhile) wrote...
by david zlesak
Wed Aug 22, 2018 12:16 am
Forum: Rose Hybridizers Association Forum
Topic: The new Star Roses and Plants wholesale catalog is online
Replies: 4
Views: 163

The new Star Roses and Plants wholesale catalog is online

I love looking through catalogs to see what new roses and other plants are coming out. The 2019 Star Roses and Plants wholesale catalog is already out and freely available online! We can find it at https://issuu.com/starrosesandplants/do ... ts_catalog
by david zlesak
Fri Aug 10, 2018 11:36 am
Forum: Rose Hybridizers Association Forum
Topic: Nematode resistance
Replies: 6
Views: 185

Re: Nematode resistance

I haven't heard a lot about nematodes in roses in the North where I'm at and have the impression that Florida is particularly favorable to them and was the reason R. x fortuniana was used. Is that accurate? Do others throughout the South face nematode issues on roses? On a side note, from my underst...
by david zlesak
Fri Aug 03, 2018 7:30 pm
Forum: Rose Hybridizers Association Forum
Topic: Identification request
Replies: 7
Views: 246

Re: Identification request

Hmmm. It sure reminds me of the very hardy hybrid gallica 'Alika'.
by david zlesak
Thu Aug 02, 2018 8:47 pm
Forum: Rose Hybridizers Association Forum
Topic: Cercospora
Replies: 7
Views: 247

Re: Cercospora

I don't know of any roses in my garden that don't get any cercospora. Many rugosas seem relatively clean of it. I was in a non-sprayed garden today and Screaming Neon Red seems to have a lot less of it than a lot of other roses. I have some op seedlings of Rainbow Knock Out that seem to be relativel...
by david zlesak
Sun Jul 08, 2018 3:05 pm
Forum: Rose Hybridizers Association Forum
Topic: Star Roses won seven out of 11 most sustainable, hardy, pest-resistant
Replies: 10
Views: 356

Re: Star Roses won seven out of 11 most sustainable, hardy, pest-resistant

Hi Philip! I wish I have used it more over the years to say more. I've been transitioning gardens, etc. in recent years. I like the habit that R. setigera contributes for flower clusters. R. multiflora and R. wichurana based polys seem to have more elongated clusters of flowers that often lead to lo...
by david zlesak
Thu Jul 05, 2018 12:18 pm
Forum: Rose Hybridizers Association Forum
Topic: Star Roses won seven out of 11 most sustainable, hardy, pest-resistant
Replies: 10
Views: 356

Re: Star Roses won seven out of 11 most sustainable, hardy, pest-resistant

Hi Stephen, Yes... I can try to take some cuttings this summer to share with folks that would like it. I should be more proactive seeing if other nurseries would like to pick it up. I think since it and Candy Oh! are small flowered singles and not necessarily what people think of as typical roses, t...
by david zlesak
Wed Jul 04, 2018 2:16 pm
Forum: Rose Hybridizers Association Forum
Topic: Star Roses won seven out of 11 most sustainable, hardy, pest-resistant
Replies: 10
Views: 356

Re: Star Roses won seven out of 11 most sustainable, hardy, pest-resistant

Thank you Philip!! Thank you Philip! I'm excited for A.R.T.S. becoming a stronger voice for scientific regional rose testing in the US with it going into its second year of awards being announced. Oso Happy Petit Pink is how Spring Meadow Nursery first introduced it. They also had the two other smal...
by david zlesak
Sun Jul 01, 2018 11:11 am
Forum: Rose Hybridizers Association Forum
Topic: yellow rugosas
Replies: 12
Views: 393

Re: yellow rugosas

That's a great idea Warren! Hopefully the cuttings root well and there'll be a number to share. Thank you Kim!! I'll reach out to Burling too. It'll be great to have a number of plants of 'Golden Angel' to cross a lot of diploid males onto.
by david zlesak
Thu Jun 28, 2018 10:04 pm
Forum: Rose Hybridizers Association Forum
Topic: yellow rugosas
Replies: 12
Views: 393

Re: yellow rugosas

I have a seedling from many years back of 'Pristine Pavement' x R. primula. Strangely it seldom flowers even though it is hardy. The foliage is beautiful and healthy. It didn't seem fertile when I looked at its pollen. It didn't set hips either. I have to suddenly move/destroy a rose garden at a fri...
by david zlesak
Tue Jun 12, 2018 11:05 am
Forum: Rose Hybridizers Association Forum
Topic: counting the ploidy level...
Replies: 7
Views: 383

Re: counting the ploidy level...

Here is the final page.
by david zlesak
Tue Jun 12, 2018 11:04 am
Forum: Rose Hybridizers Association Forum
Topic: counting the ploidy level...
Replies: 7
Views: 383

Re: counting the ploidy level...

This is what I have been using and it works well for me. It is much simpler and takes less chemicals. We don't typically get as darkly stained chromosomes, but it works well. The key is getting roots that are actively dividing with some cells in metaphase. If we don't have that no amount of chemical...
by david zlesak
Sun Jun 03, 2018 11:13 pm
Forum: Rose Hybridizers Association Forum
Topic: Spring Observations
Replies: 9
Views: 490

Re: Spring Observations

'Datota's Song' was bred by my colleague's father, Robert Smith. Robert had a greenhouse/garden center and sold produce and really loved breeding roses. He was in Mitchell, South Dakota. His son, Brian, was inspired to breed plants. Brian was my college advisor 25+ years ago and is now my colleague ...
by david zlesak
Thu May 24, 2018 11:00 pm
Forum: Rose Hybridizers Association Forum
Topic: R. gallica versus R. rubiginosa
Replies: 2
Views: 267

Re: R. gallica versus R. rubiginosa

That's a great question. Supposedly R. rubiginosa is a very complex polyploid with multiple progenitor species and maybe R. gallica is one of them.
by david zlesak
Wed May 09, 2018 12:32 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 764

Re: Canina Chromosome pairing

I love Caninae section species. When I started breeding roses in the 1980's I was in awe of the fragrant foliage of R. eglanteria. I tried it as a parent with modern roses and the only direction crosses would take is with it as a female. Many of the supposed hybrids looked like the mom, but that is ...