Search found 107 matches

by Plazbo
Fri Jul 05, 2019 2:20 am
Forum: Rose Hybridizers Association Forum
Topic: Easy diploid seed parents
Replies: 15
Views: 486

Easy diploid seed parents

So there are numerous mentions of easy tetraploid seed parents like Gemini, Queen Elizabeth, Stainless Steel, etc scattered throughout the forums but when looking for diploid seed parents there's not really any mentions of anything that fits the bill. Marie Pavie is mentioned as producing around 8 s...
by Plazbo
Wed Jun 19, 2019 8:46 pm
Forum: Rose Hybridizers Association Forum
Topic: Alain Blanchard
Replies: 79
Views: 4802

Re: Alain Blanchard

They all consistently have the issues that Ebb Tide has here, being sort of runty/lacking vigor with pretty meh blackspot resistance (leaves are great for a tiny while then it's back to being mostly bare sticks with the occassional yellow spotty leaf hanging around most of the year...on a positive E...
by Plazbo
Tue Jun 18, 2019 1:17 am
Forum: Rose Hybridizers Association Forum
Topic: Rosa sericea as a parent rose?
Replies: 16
Views: 1347

Re: Rosa sericea as a parent rose?

Given the several references to Cantabrigensis, maybe someone can confirm the following. Someone has posted several pictures on HMF and state the foilage is fragrant like rosa primula which is the first and only reference I can find. I do note that Sericea (var. Hookeri) is noted to be glandular (ag...
by Plazbo
Mon Jun 17, 2019 8:45 am
Forum: Rose Hybridizers Association Forum
Topic: Extra Sepals
Replies: 0
Views: 340

Extra Sepals

There likely isn't a definitive answer but several roses produce extra sepals. So far I have seen references/photos of it on Lorraine Lee, Rose Du Roi, Paul Neyron but checking their named descendants extra sepals don't seem to appear (at least not in any offspring that are named). Just wondering if...
by Plazbo
Sat Jun 08, 2019 10:09 pm
Forum: Rose Hybridizers Association Forum
Topic: Alain Blanchard
Replies: 79
Views: 4802

Re: Alain Blanchard

Old thread but may be useful for someone at some point in the future I was thinking a cross with something like 'Midnight Blue'/'Ebb Tide' *spits* might work for spotting as Jim mentioned once a few years back that he got spontaneous spotting from a MB seedling. Can confirm Ebb Tide x OP http://i63....
by Plazbo
Fri May 31, 2019 10:41 pm
Forum: Rose Hybridizers Association Forum
Topic: R. bracteata x Carefree Copper
Replies: 15
Views: 1084

Re: R. bracteata x Carefree Copper

Bracteata has already been 'cracked' and to good effect. Paul Barden's f3 bracteata Cannikin is well worth using as a source of remontancy, vigor, pigmentation and disease resistance. It is hardy here on the border of Connecticut and Massachusetts. Depends on what the breeder is going for, everyone...
by Plazbo
Mon May 20, 2019 8:36 pm
Forum: Rose Hybridizers Association Forum
Topic: Kind of starting new
Replies: 14
Views: 575

Re: Kind of starting new

The future of Rugosa breeding is, therefore, with the use of these Asian species (especially the Asian species hybrid 'Schneezwerg') rather than North American species. I don't disagree with the rugosa/asian hybrid path, Calocarpa is also completely clean during the full year cycle so there is some...
by Plazbo
Sun May 19, 2019 2:24 am
Forum: Rose Hybridizers Association Forum
Topic: Kind of starting new
Replies: 14
Views: 575

Re: Kind of starting new

'Hansa' has always been a favourite of mine to use in Rugosa breeding programs but now my focus is on 'Jens Munk'. It has superior disease resistance compared to several other Rugosa cultivars I've bred with, no doubt because of having 'Schneezwerg' as one of its parents. I'd be inclined to think i...
by Plazbo
Thu May 16, 2019 6:29 pm
Forum: Rose Hybridizers Association Forum
Topic: Stratification period?
Replies: 6
Views: 236

Re: Stratification period?

Sydney australia here, similar to Kim but rugosa's dont seem to have issue here. No stratification required. Just straight into seedling trays at the end of summer. Things germinate during autumn, some flowering before winter. Summer heat will kill seedlings but winter temps don't, freezing temps fo...
by Plazbo
Sun May 12, 2019 8:48 pm
Forum: Rose Hybridizers Association Forum
Topic: Project for large rose hip X R. Pimpinellifolia. Questions..
Replies: 22
Views: 2982

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

A slight tangent from this. Is spinosissima difficult with moderns? Toying around with the idea of lavender/purple flowers turning into black/purple hips.
by Plazbo
Thu Apr 18, 2019 9:01 pm
Forum: Rose Hybridizers Association Forum
Topic: Do more richly colored seedlings have more richly colored blooms?
Replies: 16
Views: 771

Re: Do more richly colored seedlings have more richly colored blooms?

Just a bit of observation connected to this...possibly too early to deduce anything. I planted a bunch of r. persica seed earlier this year, assume collected from Kyrgyzstan, Kara-Buura 1200 m above sea level. The colouration of the sprouted stems was inconsistent, some red, some green...expecting a...
by Plazbo
Mon Mar 18, 2019 5:48 pm
Forum: Rose Hybridizers Association Forum
Topic: Still trying to wrap my head around Canninae meiosis, and how to overcome...
Replies: 12
Views: 347

Re: Still trying to wrap my head around Canninae meiosis, and how to overcome...

Probably not the best case scenario given giant holes in lineage but Goldbusch is an example of the canine meiosis having broken down. Its capable of passing on the briar foilage scent (reportedly not as strong) which it had to have inherited via pollen even though the trait is locked in with seed a...
by Plazbo
Wed Mar 13, 2019 2:26 am
Forum: Rose Hybridizers Association Forum
Topic: Still trying to wrap my head around Canninae meiosis, and how to overcome...
Replies: 12
Views: 347

Re: Still trying to wrap my head around Canninae meiosis, and how to overcome...

If I had time and space and access, I'd plant every seed I could collect from 'Lady Penzance'. A fertile tetraploid with sweet briar foliage would be a real triumph. I'm working on it, around 200 Lord Penzance seedlings at the moment, almost a year old, a few flowered around 8 months old, dull yell...
by Plazbo
Tue Feb 12, 2019 9:26 pm
Forum: Rose Hybridizers Association Forum
Topic: most anticipated cross?
Replies: 19
Views: 371

Re: most anticipated cross?

(Am I the only one who always feels greater hope for crosses not yet made, rather than the ones in stratification?) No, my goals keep altering as I acquire information and gain access to new roses which keeps me looking forward to crosses not yet made. I suppose eventually I'll hit a wall on extern...
by Plazbo
Sun Feb 10, 2019 4:34 pm
Forum: Rose Hybridizers Association Forum
Topic: most anticipated cross?
Replies: 19
Views: 371

Re: most anticipated cross?

I'm very strict in the number of breeding sized roses I keep (anything over the limit generally ends up at my parents). There's plenty of room to fill but that just means having to move more things eventually (renting). Everything is in pots, size control is pretty manageable, moderns will bloom in ...
by Plazbo
Sun Feb 10, 2019 12:28 am
Forum: Rose Hybridizers Association Forum
Topic: most anticipated cross?
Replies: 19
Views: 371

Re: most anticipated cross?

Bunch of seedlings growing, crosses from the below didn't flower this season - Helga Brauer x Firecracker - Firecracker x Helga Brauer - Ebb Tide x Helga Brauer - Dagmar Hastrup x Sweet Spot Calypso Of the crosses this season most excited for - Talisman x Foetida - Talisman x Lord Penzance - Sparrie...
by Plazbo
Mon Feb 04, 2019 6:06 am
Forum: Rose Hybridizers Association Forum
Topic: R. Persica from seed - advice?
Replies: 11
Views: 227

Re: R. Persica from seed - advice?

The blotch genes have already been captured, they need refinement. I'd agree if that's the only interesting thing about the species...it might be to some, maybe not for others, I don't know, I haven't seen it in person. It's lack of leaflets interests me the same way roxburghii's many leaflets inte...
by Plazbo
Fri Feb 01, 2019 7:55 pm
Forum: Rose Hybridizers Association Forum
Topic: R. Persica from seed - advice?
Replies: 11
Views: 227

Re: R. Persica from seed - advice?

@david mears I'm in Australia (Sydney) ;) My last sentence was referring to things people have already sent from other parts of Australia...there's a lot of things growing in Australia that have stepped out of the nursery trade (probably because they aren't big sellers compared to modern shrubs/ht/f...
by Plazbo
Fri Feb 01, 2019 3:57 am
Forum: Rose Hybridizers Association Forum
Topic: R. Persica from seed - advice?
Replies: 11
Views: 227

Re: R. Persica from seed - advice?

I've gone through most posts on this forum over the last 2 years, the further back you go though the more fragmented the information as posts randomly cut off halfway through, linked sites no longer exist, attached images are no longer there (results of upgrades, porting data to new software, time)....
by Plazbo
Thu Jan 31, 2019 6:44 am
Forum: Rose Hybridizers Association Forum
Topic: R. Persica from seed - advice?
Replies: 11
Views: 227

R. Persica from seed - advice?

I'm not sure if anyone other than Warren has had success growing R. Persica from seed so may not be many responses. I got a bunch of R. Persica seed (probably...can't be 100% unless they grow. They are unusually shaped and shiny though which Warren mentions in a post back 2012 on here) from http://w...