Search found 1867 matches

by Don
Fri Jun 19, 2020 11:56 pm
Forum: Rose Hybridizers Association Forum
Topic: Video tour including Metis and Bella Nitida
Replies: 4
Views: 207

Re: Video tour including Metis and Bella Nitida

Very interesting work, Joe. The several cases of assumed identity remind me of the stories I have heard about Percy Wright 'guestimating' the parentage of his hybrids from their phenotypes and nearest neighbors. Regarding the suspect Tuscany cross, it does look doubtful that it has Persian Yellow in...
by Don
Wed Jun 17, 2020 10:42 pm
Forum: Rose Hybridizers Association Forum
Topic: Beeble Gun pollination
Replies: 0
Views: 79

Beeble Gun pollination

https://www.bbc.com/news/science-environment-53081194

Specifically, soap beeble guns get the job done equally as well as your own fingertips.
by Don
Fri Jun 12, 2020 1:39 pm
Forum: Rose Hybridizers Association Forum
Topic: hardiest reblooming diploid?
Replies: 47
Views: 1539

Re: hardiest reblooming diploid?

Joe, when doe the breeding season end for your virginiana hybrids?
by Don
Mon Jun 08, 2020 1:19 pm
Forum: Rose Hybridizers Association Forum
Topic: Yellow seedling
Replies: 12
Views: 350

Re: Yellow seedling

It looks like there are more than the one yellow seedling and a bit of red on the reverse of one. Are these all from the same cross?
by Don
Sun Jun 07, 2020 12:36 am
Forum: Rose Hybridizers Association Forum
Topic: Pesticides/Fungicides on pollinated plants.
Replies: 3
Views: 131

Re: Pesticides/Fungicides on pollinated plants.

>> my only question at this point is if there needs to be a waiting period after pollinating to spray. Not in my experience which is to say I use Bayer/Bioadvanced products, particularly their Complete Insect Killer and Disease Control for Roses, Flowers and Shrubs. I conduct a prophylactic spray re...
by Don
Tue May 19, 2020 10:03 pm
Forum: Rose Hybridizers Association Forum
Topic: Is pollen's DNA the same on all flowers of a plant?
Replies: 7
Views: 478

Re: Is pollen's DNA the same on all flowers of a plant?

Looks like OE Italian Ice has mutable color -

https://www.helpmefind.com/gardening/l.php?l=21.308284

>> Is the genome of two flowers on the same plant identical

Well, the correct answer in Bio 204 would be yes. You can get the occasional mutation on a bud, though.
by Don
Fri Apr 03, 2020 9:56 am
Forum: Rose Hybridizers Association Forum
Topic: Barden Atomics - Dakota Redwing
Replies: 12
Views: 721

Re: Barden Atomics - Dakota Redwing

So is your facebook page the one with the post about honeyberries? If so I just bought a mated pair yesterday, Blue Moon and Blue Velvet. Have you grown these?
by Don
Wed Apr 01, 2020 5:48 pm
Forum: Rose Hybridizers Association Forum
Topic: Barden Atomics - Dakota Redwing
Replies: 12
Views: 721

Re: Barden Atomics - Dakota Redwing

>> Could you share your experience with the others as parents? Summarily, with the caveat that I don't have any derivatives of them for reasons having nothing to do with them, per se. In my hands Cannikin was the most productive, mostly because it grew well for me and is a prolific bloomer. It takes...
by Don
Wed Apr 01, 2020 7:49 am
Forum: Rose Hybridizers Association Forum
Topic: Barden Atomics - Dakota Redwing
Replies: 12
Views: 721

Barden Atomics - Dakota Redwing

Paul Barden bred a small group of roses named after various USA atomic weapons tests to emphasize the fact that these particular cultivars are highly resistant to Diplocarpon rosa (Blackspot Disease). Of these I grew Castle Bravo, Cannikin and Diablo Hawk. The only other one I know of is Dakota Redw...
by Don
Fri Mar 27, 2020 11:03 pm
Forum: Rose Hybridizers Association Forum
Topic: silver nanoparticles use in vitro culture
Replies: 5
Views: 326

Re: silver nanoparticles use in vitro culture

Hmmm. That paper apparently describes an in-vitro propagation method for roses. There are not many of those.
by Don
Mon Mar 16, 2020 9:14 am
Forum: Rose Hybridizers Association Forum
Topic: Strat Question
Replies: 6
Views: 293

Re: Strat Question

>> Generally it seems that simply storing fresh hips in a refrigerator is not enough to make them think they have been stratified. Stratification and germination seem to require different temperature regimes. One thing to try is to raise the temperature to between 48 and 54 degrees F and hold it the...
by Don
Mon Mar 16, 2020 9:09 am
Forum: Rose Hybridizers Association Forum
Topic: Unique black spot resistance gene from 'George Vancouver' is better characterized
Replies: 19
Views: 976

Re: Unique black spot resistance gene from 'George Vancouver' is better characterized

So, how exactly can we amateur breeders capitalize on this news, David? Obviously we can use the cultivars you lists as having RDR3 as breeders and try to combine them with roses that have the other types of resistance but I'm not able to tell from the abstract which other cultivars those might be. ...
by Don
Mon Mar 09, 2020 4:05 pm
Forum: Rose Hybridizers Association Forum
Topic: Apples and Oranges
Replies: 28
Views: 1078

Re: Apples and Oranges

I think that Morning Mist is a cross between Lavender Pinocchio and some one of the work horse florist roses from the 60's like Tiffany. In fact I think Tiffany is a good candidate based on scent and morphology. I wonder if anyone at Meilland or Suntory has figured it out yet based on genetics. Shou...
by Don
Sun Mar 08, 2020 8:12 pm
Forum: Rose Hybridizers Association Forum
Topic: Apples and Oranges
Replies: 28
Views: 1078

Re: Apples and Oranges

The number of available cultivars are quickly diminishing such that I doubt it would even be possible to assemble a stable having dozens of red/yellow bicolors.
by Don
Sun Mar 08, 2020 3:34 pm
Forum: Rose Hybridizers Association Forum
Topic: Apples and Oranges
Replies: 28
Views: 1078

Re: Apples and Oranges

I guess I shouldn't be surprised that the quaint musings on pigmentation of breeders like Moore, LeGrice, Lammerts, Marshall and others would continue to be seriously discussed in the century after they lived and died. The actual science of the matter is largely inaccessible to the layman even today...
by Don
Wed Feb 19, 2020 9:17 am
Forum: Rose Hybridizers Association Forum
Topic: purple stamens
Replies: 18
Views: 964

Re: purple stamens

Purple is not the only color that anthers can be besides yellow. This is a picture of Rob Rippeto's GOLDAXDORHOR, a hybrid bracteata seedling that I tried breeding with for several years. I regret not having any offspring that survived the winters in New England which was the fate also of mama. Rob2...
by Don
Tue Feb 18, 2020 8:27 pm
Forum: Rose Hybridizers Association Forum
Topic: purple stamens
Replies: 18
Views: 964

Re: purple stamens

I saw Bayses Purple a number of years ago in the outside patio garden at the US Botanical Garden. The stamens were strikingly purple.

https://www.helpmefind.com/rose/l.php?l=2.542
by Don
Mon Feb 17, 2020 8:39 am
Forum: Rose Hybridizers Association Forum
Topic: Coutts #4
Replies: 11
Views: 798

Re: Coutts #4

I think it matters little or not at all what we call them, Larry, except maybe to us when we post about them to the extent that the label facilitates search engines. What matters more is what Kim wrote about in another recent post which is what they are presented as in commerce. Perhaps the most fam...