Search found 84 matches

by dgermeys
Tue Apr 24, 2018 5:52 am
Forum: Rose Hybridizers Association Forum
Topic: A Good parent for adding BS resistance
Replies: 8
Views: 1019

Re: A Good parent for adding BS resistance

Lovely seedling Stephen!
How is the bloom pattern? perpetual (continual bloom) or in flushes/cycles (rebloom)?
by dgermeys
Mon Apr 23, 2018 11:54 am
Forum: Rose Hybridizers Association Forum
Topic: / Honeybee population isn't ‘crashing’ and seed pesticides are not driving health problems
Replies: 10
Views: 930

Re: / Honeybee population isn't ‘crashing’ and seed pesticides are not driving health problems

I take it you are supportive of the "comments", where the article is contradicted :-)
Moreover, may I also refer to the problems concerning solitary bees... I am sure you are well aware of them... they are not mentioned at all in this article.
by dgermeys
Mon Apr 02, 2018 5:23 pm
Forum: Rose Hybridizers Association Forum
Topic: reblooming botanical roses
Replies: 16
Views: 1641

Re: reblooming botanical roses

Hi everyone, Thanks a lot for your answers! I 'm not familiar with R. minutifolia, and I'm afraid it's not hardy enough to grow this rose in Belgium, but who knows, one day, if I have a greenhouse I might consider it. I did buy R. fedtschenkoana last weekend! Did anyone of you try to breed with this...
by dgermeys
Thu Mar 22, 2018 1:44 pm
Forum: Rose Hybridizers Association Forum
Topic: reblooming botanical roses
Replies: 16
Views: 1641

reblooming botanical roses

Hey there, we have always been told, in the text books that roses did not rebloom before the chinas were introduced. Although this might be more or less true, I believe there are some botanical roses that DO show natural rebloom. Does any of you have experience with this? I guess my question is, whi...
by dgermeys
Thu Mar 22, 2018 1:39 pm
Forum: Rose Hybridizers Association Forum
Topic: Breeding plans for 2018
Replies: 38
Views: 3674

Re: Breeding plans for 2018

But 2018 will see increased activity with Lord Penzance Lady Penzance Hey Plazbo, Have you tried to breed with rosa rubiginosa or it's hybrids such as Lord and Lady Penzance? I am planning to breed with it this or next year. Still have to buy a few plants... what is your goal here? Are you trying t...
by dgermeys
Wed Mar 21, 2018 4:46 pm
Forum: Rose Hybridizers Association Forum
Topic: 2017 Virginiana Hybrids
Replies: 48
Views: 4288

Re: 2017 Virginiana Hybrids

Love the pictures Warren!
by dgermeys
Mon Feb 26, 2018 7:12 am
Forum: Rose Hybridizers Association Forum
Topic: The aim is also to produce fertile offspring
Replies: 7
Views: 565

Re: The aim is also to produce fertile offspring

Warren wrote:Hi Phil
that is the colour of the sym x Virg, but then again most of the Hybrids with R.virg have great hips.

Cheers Warren
That's an interesting Warren! Would you think it depends on the mother (class e.g. gallica, tea, ...) of the hybrids as well or don't you see a trend there?
by dgermeys
Wed Feb 21, 2018 12:05 pm
Forum: Rose Hybridizers Association Forum
Topic: World Federation Rose Societies conference - Copenhagen
Replies: 5
Views: 642

Re: World Federation Rose Societies conference - Copenhagen

39 Canadians and 72 Americans. Would really be a pitty if nobody on thw forum here would come. The convention takes only place once every 3 years...
by dgermeys
Mon Feb 19, 2018 10:40 am
Forum: Rose Hybridizers Association Forum
Topic: Not scientific, but interesting
Replies: 7
Views: 622

Re: Not scientific, but interesting

Karl K wrote: German breeders have long been concerned with producing healthy roses.
And there is also Noack in Germany
and Louis Lens in Belgium, who brought us some very exceptional and healthy roses.
by dgermeys
Mon Feb 05, 2018 4:26 pm
Forum: Rose Hybridizers Association Forum
Topic: Update on the Rosa virginiana hybrids lines
Replies: 38
Views: 4732

Re: Update on the Rosa virginiana hybrids lines

Seedling O39 P47 looks very promising to breed with!! nice color and very good foliage :-D
by dgermeys
Sun Feb 04, 2018 8:30 am
Forum: Rose Hybridizers Association Forum
Topic: Show-and-tell from last season?
Replies: 19
Views: 2064

Re: Show-and-tell from last season?

I have one rose that I do like a lot, here are 3 pictures from it during it's first year. Once it started blooming it didn't want to stop. LOL... I don't spray or pamper my roses. Exited to see how it will develop this year!
rose_1.jpg
green foliage
rose_2.jpg
same seedling with flower
rose_frost.jpg
same seedling in winter
by dgermeys
Sat Feb 03, 2018 6:23 pm
Forum: Rose Hybridizers Association Forum
Topic: English Roses - finding good seed parents
Replies: 10
Views: 1047

Re: English Roses - finding good seed parents

@Philip_la: I know the roses of Kordes. Kordes is working on disease resistance for quite a long time. But I am interested in the elegance and beauty of Austin's roses. I know a lot the older varieties are not very disease resistance, that is where my question came from. I have some seeds from 'The ...
by dgermeys
Fri Feb 02, 2018 2:10 pm
Forum: Rose Hybridizers Association Forum
Topic: English Roses - finding good seed parents
Replies: 10
Views: 1047

English Roses - finding good seed parents

Hello,

I was wondering, does any of you have any experience with using David Austin Roses (English Roses) as a seed parent? Preferably some healthy Austin Roses, so escpecially those introductions from the last couple of years seem very interesting. Any ideas or experiences?

Thanks!
Dane.
by dgermeys
Sat Oct 21, 2017 6:14 pm
Forum: Rose Hybridizers Association Forum
Topic: fungus Sphaceloma rosarum
Replies: 3
Views: 722

Re: fungus Sphaceloma rosarum

Thank you Betsy,
Thank you Larry. I will try to find your article in the RHA archives. Do you remember what year you wrote it?

I hope to come across some roses that are resistant to this disease.
by dgermeys
Sat Oct 21, 2017 6:10 pm
Forum: Rose Hybridizers Association Forum
Topic: Project for large rose hip X R. Pimpinellifolia. Questions..
Replies: 22
Views: 2989

Re: Project for large rose hip X R. Pimpinellifolia. Questio

Hello Sebastian, have you thought about the special combination of rosa Moyesii with rosa spinosissma? Or rosa sweginzowii with rosa spinosissima. I am not sure if the seedlings will be fertile but if it works, you would definitly get some spectacular hips... The problem though might be that if this...
by dgermeys
Wed Oct 04, 2017 5:35 pm
Forum: Rose Hybridizers Association Forum
Topic: fungus Sphaceloma rosarum
Replies: 3
Views: 722

fungus Sphaceloma rosarum

Does anyone know roses that are resistent to the fungus "Sphaceloma rosarum"? This result of this fungus are small holes in the leaves. One of my seedlings seems to suffer from this rose disease. The funny thing is that she seems not to suffer from blackspot very much though. So I was wondering if a...
by dgermeys
Sat Sep 09, 2017 2:12 am
Forum: Rose Hybridizers Association Forum
Topic: China studs and blackspot
Replies: 11
Views: 1396

Re: China studs and blackspot

Thx for the info! Seems a very interesting, although a bit expensive book.
by dgermeys
Fri Sep 08, 2017 3:05 am
Forum: Rose Hybridizers Association Forum
Topic: China studs and blackspot
Replies: 11
Views: 1396

Re: China studs and blackspot

Thx for correcting that Christopher. I had my reference from an old paper by de Vries and Dubois from the Second International Symposium on Roses, where they mention the "four diploid 'Stud' China's". http://edepot.wur.nl/24387 That is why I thought them to be diploid. In their table 2, after Stewar...
by dgermeys
Thu Sep 07, 2017 5:51 pm
Forum: Rose Hybridizers Association Forum
Topic: Rosa arvensis breeding
Replies: 21
Views: 2037

Re: Rosa arvensis breeding

I can confirm that arvensis Splendens is indeed very shade tolerant. I gave it almost no sun, and yet it performed very well. Now lately, at the end of august it started to grow very long runners. From all the roses I am currently growing, this rose is the most healthiest one. I am though wondering ...
by dgermeys
Thu Sep 07, 2017 5:21 pm
Forum: Rose Hybridizers Association Forum
Topic: China studs and blackspot
Replies: 11
Views: 1396

Re: China studs and blackspot

Hi, it is just something I was wondering about. But as some of you suggested, it might be due to the combination of the two. The Chinas were probably happy in their own climate but probably not ready to 'fight' the harsh, cold and moist environment of Europe? Although, honestly, I have no idea what ...