Search found 91 matches

by dgermeys
Wed May 30, 2018 4:31 pm
Forum: Rose Hybridizers Association Forum
Topic: First Blooms for 2015
Replies: 28
Views: 3984

Re: First Blooms for 2015

The pollination that produced this seedling was made May 25, 2009. It flowered for the first time this year (2015) on May 31. The pollen parent is an F1 moyesii, the seed parent is Persian Peach. Hi Don, that's a very interesting cross! How did it evolve? Have you other crosses with moyessi as poll...
by dgermeys
Thu May 24, 2018 3:19 pm
Forum: Rose Hybridizers Association Forum
Topic: R. gallica versus R. rubiginosa
Replies: 2
Views: 430

R. gallica versus R. rubiginosa

Hi, Today I collected some pollen in the wild from rosa rubiginosa and afterwards I saw a picture of rosa gallica complicata... Which made me wonder... Are rosa gallica and rosa rubiginosa related species? They both have glands on there sepals and the sepals show a particular pattern. What do you gu...
by dgermeys
Wed May 09, 2018 5:27 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1355

Re: Canina Chromosome pairing

I have some ideas about which wild roses can be used on rosa rubiginosa so the f1 hybrids will be able to 'free' the fragant genes. My thinking is based on the septet theory of Hurst. But I know... most people here feel Hurst was wrong... I still believe there is some truth in his observations thoug...
by dgermeys
Wed May 09, 2018 5:18 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1355

Re: Canina Chromosome pairing

Hey Karl. I like the way you think... I am quite surenit is possible to bring the fragent leaf genes into a tetraploid. Not sure though it is easy to obtain a fertile tetraploid though, so the genes can be passed on to its offspring... I have 2 seedlings of Magnifica, open pollination. But they are ...
by dgermeys
Wed May 09, 2018 12:13 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1355

Re: Canina Chromosome pairing

Hi, I believe this article might be of some interest: https://link.springer.com/article/10.1007/s00606-003-0058-2 It states that "Evaluation of phenotypic variability revealed that the two taxonomically relevant characters “widening of the orifice” and “persistence of the sepals” are statistically s...
by dgermeys
Wed Apr 25, 2018 2:47 am
Forum: Rose Hybridizers Association Forum
Topic: Any merits to R. woodsii ultramontana?
Replies: 21
Views: 1864

Re: Any merits to R. woodsii ultramontana?

Thanks for the ideas, but I'm not really a fan of using weed killers or other chemicals in my rose breeding work. So I'll have to hope nature will be so kind to help me with the part of doubling of chromosones :-)
by dgermeys
Tue Apr 24, 2018 5:59 am
Forum: Rose Hybridizers Association Forum
Topic: Any merits to R. woodsii ultramontana?
Replies: 21
Views: 1864

Re: Any merits to R. woodsii ultramontana?

4. 'Schneezwerg' or 'Jens Munk' (these have superior disease resistance to other Rugosas in my experience) x Rosa woodsii could result in very cold hardy (Zone 2), disease resistant progeny that could be further used in Rugosa breeding. Perhaps there is potential to develop selections having reddis...
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: 1110

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: 951

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: 1952

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: 1952

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: 4051

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: 4370

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: 592

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: 682

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: 647

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: 4794

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: 2114

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!
green foliage
green foliage
same seedling with flower
same seedling with flower
same seedling in winter
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: 1175

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: 1175

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.