Search found 352 matches

by david zlesak
Fri Oct 18, 2019 9:37 am
Forum: Rose Hybridizers Association Forum
Topic: 'Chinook Sunrise' met its sunset
Replies: 13
Views: 472

Re: 'Chinook Sunrise' met its sunset

The pollen of 'Chinook Sunrise' is relatively fertile it seems. I used it on a number of females and the seed set is pretty good. When I tried to use it as a female parent there weren't any hips that formed or any op hips either. Someday I'll try to count its chromosomes to see if it may be triploid...
by david zlesak
Fri Sep 13, 2019 11:26 am
Forum: Rose Hybridizers Association Forum
Topic: Freedom Gardens is a source for rare roses
Replies: 1
Views: 147

Freedom Gardens is a source for rare roses

We were looking for Rosa x kordesii for a black spot research study to understand if it may be the source/share the same black spot resistance gene that is in many of the Explorer series of roses. It was very hard to find R. x kordesii in the US. A friend from CA was very kind and shared a couple cu...
by david zlesak
Sun Aug 25, 2019 2:13 pm
Forum: Rose Hybridizers Association Forum
Topic: Non-fading suggestions
Replies: 11
Views: 451

Re: Non-fading suggestions

Hi Chuck! I'm not sure of its story. I saw it for sale online through J&P a couple years ago and was excited to try it because it is yellow. It grows like a mini and I forgot if they sold it as a mini or shrub. There was no code or variety name in small print associated with the marketing or tag. I'...
by david zlesak
Sat Aug 24, 2019 9:11 pm
Forum: Rose Hybridizers Association Forum
Topic: Non-fading suggestions
Replies: 11
Views: 451

Re: Non-fading suggestions

I haven't seen 'Twinkling Lights' for sale in a year or so, but Jackson and Perkins was selling it. The yellow color is very rich and doesn't seem to fade much at all. Unfortunately, it doesn't set any hips. I tried some of its pollen and have to check to see if any hips are forming using it.
by david zlesak
Thu Jul 04, 2019 10:11 am
Forum: Rose Hybridizers Association Forum
Topic: 'Chinook Sunrise' met its sunset
Replies: 13
Views: 472

Re: 'Chinook Sunrise' met its sunset

In the Twin Cities area there is a special school fundraiser plant sale Mother's Day weekend that is huge now. They bring in a lot of plant material from Jeffries in Canada and many other nurseries too. I got an 'Olds College' last year and 'Chinook Sunrise' this year. I love the double warm colored...
by david zlesak
Fri Jun 21, 2019 10:50 am
Forum: Rose Hybridizers Association Forum
Topic: Variegated roses?
Replies: 33
Views: 1414

Re: Variegated roses?

That rose of your friend's Kim is very beautiful!
by david zlesak
Thu Jun 20, 2019 8:03 pm
Forum: Rose Hybridizers Association Forum
Topic: rugosa x glauca seedling
Replies: 9
Views: 520

Re: rugosa x glauca seedling

Your seedling is beautiful!! I love the dense habit and richly colored blooms.
by david zlesak
Thu Jun 20, 2019 7:58 pm
Forum: Rose Hybridizers Association Forum
Topic: Variegated roses?
Replies: 33
Views: 1414

Re: Variegated roses?

The variegated seedlings from this spring posted above for the most part don't look too healthy. The variegation seems to be less pronounced than before and lead to the leaves being smaller and kind of mottled and off color. I shared some for virus testing and it'll be interesting if something is fo...
by david zlesak
Mon Jun 17, 2019 11:33 am
Forum: Rose Hybridizers Association Forum
Topic: Putting honey on stigmas before pollination??
Replies: 12
Views: 611

Re: Putting honey on stigmas before pollination??

Thanks everyone! For the water in the pollen germination assays I've just used RO or distilled water in the lab. That is a good question how much city water with chlorine or water with various minerals would impact the results.
by david zlesak
Sun Jun 16, 2019 2:05 pm
Forum: Rose Hybridizers Association Forum
Topic: Putting honey on stigmas before pollination??
Replies: 12
Views: 611

Putting honey on stigmas before pollination??

I was visiting with a rhododendron breeding friend last week and she says she uses honey on stigmas when she emasculates and doesn't want to wait a day or so for the natural secretions to build so she can pollinate right away more effectively. I saw her make some pollinations. She uses raw unfiltere...
by david zlesak
Sun May 26, 2019 11:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Rose viruses with pictures of infected leaves
Replies: 1
Views: 178

Re: Rose viruses with pictures of infected leaves

Thank you for posting this Henry! A challenge is that sometimes the symptoms look a bit different from cultivar to cultivar, but it is great to have as many pictures of the range of symptoms for each virus as possible to have a good starting point. For Rose Yellow Mosiac Virus, for instance, not all...
by david zlesak
Fri May 24, 2019 10:59 pm
Forum: Rose Hybridizers Association Forum
Topic: Best sources for virus free hybrid teas?
Replies: 3
Views: 210

Re: Best sources for virus free hybrid teas?

I think I read Burling has obtained stock from FPS, if available, for the cultivars she sells. I forgot the details now, but that is why I think I ordered 'Crimson Glory' from her years back.
by david zlesak
Sat May 18, 2019 10:45 am
Forum: Rose Hybridizers Association Forum
Topic: A.R.T.S. national trial gardens
Replies: 1
Views: 120

Re: A.R.T.S. national trial gardens

Thank you Henry for posting this!! I appreciate that you are quick at finding rose literature and sharing it with others on the forum. It is nice to have strong connections with trade magazines to have articles like this each year to get our word out about the program and the new winners. It is nice...
by david zlesak
Wed May 15, 2019 11:18 pm
Forum: Rose Hybridizers Association Forum
Topic: Variegated roses?
Replies: 33
Views: 1414

Re: Variegated roses?

It is a bit slower growing and weaker and it is a single soft pink.
by david zlesak
Tue May 14, 2019 10:16 am
Forum: Rose Hybridizers Association Forum
Topic: Rose Rosette Disease SCRI Review Meeting Slide Presentations
Replies: 3
Views: 215

Re: Rose Rosette Disease SCRI Review Meeting Slide Presentations

It is great that the PowerPoints are listed. I especially love being able to see the roses that have and have not shown symptoms yet of RRD in the Oklahoma and other trials and learning about some of the techniques being developed and are available for RRD detection.
by david zlesak
Mon May 06, 2019 2:10 pm
Forum: Rose Hybridizers Association Forum
Topic: Wasagaming and Snow Pavement as seed parents
Replies: 8
Views: 337

Re: Wasagaming and Snow Pavement as seed parents

That sounds really cool Joe!!! Thank you for the great idea!!! I have one A&B rose in a pot and should try that. It is usually just a good male. That is great higher temperatures may help with overcoming more than just some of the typical self-incompatibility limitations.
by david zlesak
Mon May 06, 2019 9:49 am
Forum: Rose Hybridizers Association Forum
Topic: Wasagaming and Snow Pavement as seed parents
Replies: 8
Views: 337

Re: Wasagaming and Snow Pavement as seed parents

I love your crosses Roselynn! We got to -33F in the Twin Cities this past winter and more newer cane hardy rugosa rose hybrids would sure be great. Here 'Snow Pavement' gets mildew too, but not super bad. I sure love the silvery lavender color. It'll be exciting when more and more of your hybrids bl...
by david zlesak
Tue Apr 16, 2019 9:19 pm
Forum: Rose Hybridizers Association Forum
Topic: Andrew Barocco - Texas hybridizer
Replies: 3
Views: 260

Re: Andrew Barocco - Texas hybridizer

Andrew gave a great tour of the breeding program for the NCPN-R meetings there at the Antique Rose Emporium that he leads with owner Michael Shoup.
by david zlesak
Thu Apr 11, 2019 11:53 pm
Forum: Rose Hybridizers Association Forum
Topic: Flowering, Drought and Disease Tolerance, and Landscape Performance of Landscape Roses Grown under Low-input Conditions
Replies: 2
Views: 153

Re: Flowering, Drought and Disease Tolerance, and Landscape Performance of Landscape Roses Grown under Low-input Conditi

Thank you Henry and Philip! It was a huge undertaking and took a lot of collaboration, volunteers, etc. to make it possible. To respond to some of the points you mentioned Philip, yes the goal was to especially trial roses that haven't been tested in the Earth-Kind manner before and only use a coupl...
by david zlesak
Sun Apr 07, 2019 10:42 am
Forum: Rose Hybridizers Association Forum
Topic: Unreduced pollen in roses
Replies: 4
Views: 158

Re: Unreduced pollen in roses

Those are great questions. It seems like with polyploid series like you mentioned Philip that the higher ploidy is found in the more harsh/severe end of the range. What I've heard is that polyploid allows for more alleles to be housed within the plant from which to hopefully accumulate alleles that ...