Search found 84 matches

by dgermeys
Tue Sep 05, 2017 1:06 pm
Forum: Rose Hybridizers Association Forum
Topic: China studs and blackspot
Replies: 11
Views: 1396

China studs and blackspot

Hi everyone, I have a question about the 4 China studs, the 4 roses that came from China and are said to be responssible for the reblooming qualities of a lot (not all though) of our garden roses. Does anyone of you grow them, and, are they prune to blackspot? Could it be that together with the rebl...
by dgermeys
Tue Aug 29, 2017 11:29 am
Forum: Rose Hybridizers Association Forum
Topic: video how to cross pollinate roses
Replies: 4
Views: 678

Re: video how to cross pollinate roses

Hey Jonathan, you also talk abiut rosa palustris, the swamp rose. If I understood correctly, this rose won't rot if the roots stand in water, e.g. during winter time. But can it handle heat as well, or does it really need moisture and a lot of rain?
Thx!!
by dgermeys
Mon Aug 21, 2017 11:57 am
Forum: Rose Hybridizers Association Forum
Topic: Hybrid Musk Kathleen
Replies: 37
Views: 4785

Re: Hybrid Musk Kathleen

Hi If I am not mistaken, some hybrid musks do not have even musk genes or only a very small amount. Rosa multiflora was used to create the same effect. You might want to try working with Heavenly Pink or maybe Dinky. I have not used them but I believe, if you would use the pollen on Kathleen you mig...
by dgermeys
Mon Aug 14, 2017 6:03 pm
Forum: Rose Hybridizers Association Forum
Topic: Hyb Kordesii X Hyb Spin
Replies: 12
Views: 1160

Re: Hyb Kordesii X Hyb Spin

Hey Warren. Did you work with thus seedling in further crosses? Or with any other spin hybrids?

Dane.
by dgermeys
Sun Aug 13, 2017 5:02 pm
Forum: Rose Hybridizers Association Forum
Topic: Spinosissima Hybrids
Replies: 10
Views: 1455

Re: Spinosissima Hybrids

I can confirm some spinosissimas at the Belgiam coast do bloom now in august. Not the thousands of flowers I saw in May but there are a few flowers here and there, especially with plant that have no or only a few hips from the last bloom.
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by dgermeys
Sat Aug 12, 2017 3:54 pm
Forum: Rose Hybridizers Association Forum
Topic: Spinosissima Hybrids
Replies: 10
Views: 1455

Re: Spinosissima Hybrids

A friend of me told me today he went into the dunes yesterday and saw some duneroses, spinosissimas reblooming. So it seems some of them have reblooming genes. I will check this out this week and take some pictures.
by dgermeys
Thu Aug 10, 2017 4:34 pm
Forum: Rose Hybridizers Association Forum
Topic: Spinosissima Hybrids
Replies: 10
Views: 1455

Re: Spinosissima Hybrids

Hi all, Thank you all very much for your replies! Yes Lydia, the scent is one of the reasons why I love the spinosissima's! Johannes, I didn't know rosa 'altaica' does rebloom. Do you think other spinossissimas in the wild would do this as well? I read somewhere on a Dutch site that rosa spinosissim...
by dgermeys
Thu Aug 10, 2017 1:38 pm
Forum: Rose Hybridizers Association Forum
Topic: Rosa moschata breeding options
Replies: 4
Views: 799

Re: Rosa moschata breeding options

Hi,
Maybe you want to have a look at the website if Lens roses. Louis Lens used to do a lot of work with musk hybrids during the former century. A lot of his breedings are still sold at Lens Roses http://www.lens-roses.be/html/home.dhtm ... language=E
by dgermeys
Tue Jul 18, 2017 3:35 am
Forum: Rose Hybridizers Association Forum
Topic: Spinosissima Hybrids
Replies: 10
Views: 1455

Spinosissima Hybrids

I would like to hear about your experiences with spinosissimas and spinosissima hybrids. I am thinking about roses as - Karl Förster (Kordes) (occ. repeat) - Paula Vapelle (Ivan Louette) (occ. repeat) - Kakwa (John Alexander Wallace, Canada) - Robbie Burns (Austin) - Lochinvar (Austin) (repeats?) - ...
by dgermeys
Fri Jul 07, 2017 6:02 am
Forum: Rose Hybridizers Association Forum
Topic: Magnifica (rubiginosa hybrid)
Replies: 3
Views: 535

Re: Magnifica (rubiginosa hybrid)

Thank you Kim,
but still... I doubt it is pentaploid, when you look at it's parentage, it would make more sense to be hexaploid.
by dgermeys
Thu Jul 06, 2017 3:21 pm
Forum: Rose Hybridizers Association Forum
Topic: Magnifica (rubiginosa hybrid)
Replies: 3
Views: 535

Magnifica (rubiginosa hybrid)

I was wondering about this rubiginosa hybrid, rosa magnifica. HelpmeFind says it is pentaploid but there is no reference for that. Could it be that this rose is actually hexaploid? http://www.helpmefind.com/gardening/l.p ... 4064&tab=1
by dgermeys
Thu Jul 06, 2017 2:31 am
Forum: Rose Hybridizers Association Forum
Topic: Lemon Fizz x R. carolina
Replies: 11
Views: 1294

Re: Lemon Fizz x R. carolina

I belive there is a big chance your new rose is tetraploid. Try some self pollination and see what happens. If you would pollinate it with Lemon Fizz, there is, I believe a big change the offspring will be triploid though...
by dgermeys
Wed Jul 05, 2017 5:55 pm
Forum: Rose Hybridizers Association Forum
Topic: The Future Development of Canadian Roses
Replies: 57
Views: 2528

Re: The Future Development of Canadian Roses

Hi, A very interesting discussion. It also arised a question in my mind, what are the rootstocks used in Canada? I know in Europe it's mostly some sort of canina, but which rootstock is used in Canada or are most roses grown on their own roots? Also, I believe there is a lot of possiblities in spino...
by dgermeys
Wed Jul 05, 2017 5:40 pm
Forum: Rose Hybridizers Association Forum
Topic: 'Canadian Shield' rose
Replies: 12
Views: 1617

Re: 'Canadian Shield' rose

Is this rose available in Europe as well? Would love to have one! Visted Canada last year, made some great friends overthere!
by dgermeys
Fri May 19, 2017 5:58 pm
Forum: Rose Hybridizers Association Forum
Topic: ploidy of Highdownensis
Replies: 0
Views: 362

ploidy of Highdownensis

Does anyone know the ploidy of R. moyesii 'Highdownensis'? Help me find says it is pentaploid. But could it be hexaploid? And also, if it is pentaploid or hexaploid, what is the ploidy of the pollen. Has anyone actually tried to find this out? I mean, not theoretically but in practice. If anyone alr...
by dgermeys
Wed Apr 26, 2017 11:56 am
Forum: Rose Hybridizers Association Forum
Topic: What color would you call this?
Replies: 16
Views: 1913

Re: What color would you call this?

reddish :-)