Search found 1344 matches

by jbergeson
Sun Jan 19, 2020 7:33 am
Forum: Rose Hybridizers Association Forum
Topic: tracking seed germination
Replies: 3
Views: 51

Re: tracking seed germination

Not adding much here: I remember two batches of R. foliolosa seed, pollinated by different parents, seeded in the same tray on the same day, germinating distinctly a few days apart. This would seem to indicate an influence of the male parent. However, the extra variable is hip ripening time. I didn'...
by jbergeson
Fri Jan 17, 2020 6:51 pm
Forum: Rose Hybridizers Association Forum
Topic: What is the easiest and hardest steps in rose breeding?
Replies: 29
Views: 366

Re: What is the easiest and hardest steps in rose breeding?

On the topic of Orangeade: Stoddard's article mentions its usefulness in accepting species pollen. Kim Rupert made the cross Orangeade x R. nitida, which he called Orantida. It was unable to bloom in his climate due to a lack of cooling, so he sent one to me and others (Rob Byrnes, I think). I kept ...
by jbergeson
Thu Jan 16, 2020 1:35 pm
Forum: Rose Hybridizers Association Forum
Topic: Is every rose seed completely unique?
Replies: 17
Views: 212

Re: Is every rose seed completely unique?

Thanks, Matt for the clarification of my zygosity mumbo jumbo. Your explanation was precise and helpful. I regularly throw around terms that I don't fully understand and this was one of those occurrences. I think we've all teamed up to confuse the heck out of the original poster. She seems to have t...
by jbergeson
Wed Jan 15, 2020 11:43 pm
Forum: Rose Hybridizers Association Forum
Topic: Is every rose seed completely unique?
Replies: 17
Views: 212

Re: Is every rose seed completely unique?

An important concept to learn when considering this topic is heterozygous vs homozygous. A heterozygous rose carries a lot of hidden gene characteristics that are being masked by dominant genes. A homozygous rose carries genes in which the hidden, unexpressed genes have quite similar characteristics...
by jbergeson
Tue Jan 14, 2020 9:43 am
Forum: Rose Hybridizers Association Forum
Topic: What is the easiest and hardest steps in rose breeding?
Replies: 29
Views: 366

Re: What is the easiest and hardest steps in rose breeding?

Culling is the hardest thing. Stratification and growing of young seedlings is more difficult than pollination. The analogy of making human children is apt. Pollination is easy and fun. You can get better at it with practice, but you don't need much skill to succeed. Germination is more difficult. S...
by jbergeson
Tue Dec 17, 2019 10:50 am
Forum: Rose Hybridizers Association Forum
Topic: R. carolina video
Replies: 17
Views: 511

Re: R. carolina video

Larry, OK, Lemon Fizz x Suzanne does seem pretty cool. Or Lemon Fizz x Prairie Peace. You made me think of this seedling, which is (Rugosa #3 x OP) x (R. carolina x Prairie Peace). I like the extended, showy blossom display of this seedling. You can see the Prairie Peace, perhaps, in the flashing of...
by jbergeson
Tue Dec 17, 2019 8:58 am
Forum: Rose Hybridizers Association Forum
Topic: R. carolina video
Replies: 17
Views: 511

Re: R. carolina video

Larry, Regarding Suzanne: The tendency of Suzanne and other spin hybrids to significantly defoliate, combined with their extreme thorniness, gives rise to prejudice in me. While carolina and virginiana don't have as extreme hardiness, their healthy, modern foliage and vigor make them more valuable p...
by jbergeson
Mon Dec 16, 2019 12:53 pm
Forum: Rose Hybridizers Association Forum
Topic: Subjective Elements of Fragrance
Replies: 10
Views: 322

Subjective Elements of Fragrance

I know there has been a lot of discussion of the chemistry of color and fragrance on this forum. I'm posting this as a general place to babble about our experiences, thoughts, preferences, and theories of fragrance in roses and breeding roses. The first thing I do when I walk past a seedling that's ...
by jbergeson
Mon Dec 16, 2019 12:30 pm
Forum: Rose Hybridizers Association Forum
Topic: R. carolina video
Replies: 17
Views: 511

Re: R. carolina video

Thanks, Don! I'll radiate a temporary ego glow from that. I hope I can bring the dream of hardy, healthy, and lovely roses closer to reality. Duane, regarding fragrance, I don't have any particular insights about how fragrance gets passed on from one species or another. A lot of species seem to have...
by jbergeson
Sat Dec 14, 2019 10:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Polyantha rose plant named ‘Zlepoltwo’
Replies: 2
Views: 146

Re: Polyantha rose plant named ‘Zlepoltwo’

I imagine this is Pretty Polly White. I had a some for sale this past spring. There is also Pretty Polly Pink and Pretty Polly Lavender. I was looking through the Star Roses wholesale catalog and saw these roses and had the thought "wow, I guess someone besides David Zlesak is breeding polyanthas, e...
by jbergeson
Sat Dec 14, 2019 10:07 pm
Forum: Rose Hybridizers Association Forum
Topic: germinations
Replies: 2
Views: 125

Re: germinations

Yeah, I had been leaving my seeds out at room temperature or a little colder on average. When I went through them several had sprouted...I'd say about 20 or 30. Luckily I have lights. I'm happy to have some little roses to watch during the winter.

I hope you can get yours to survive!
by jbergeson
Fri Dec 13, 2019 11:39 am
Forum: Rose Hybridizers Association Forum
Topic: R. carolina video
Replies: 17
Views: 511

R. carolina video

Here is a video I just edited, shot this summer, about breeding with R. carolina/virginiana.

https://youtu.be/AwnuC_Jx7cU

I noticed that I had a video about the FIVI3 seedlings posted last year, which might be relevant:

https://youtu.be/oKT6J5eLfSA
by jbergeson
Thu Dec 12, 2019 10:42 am
Forum: Rose Hybridizers Association Forum
Topic: Standard Roses
Replies: 3
Views: 134

Re: Standard Roses

Hi Chuck, Four characteristics must be combined: ultra-hardiness, thornlessness or near-thornlessness, non-suckering, and rootability from cuttings. It would be kind of a relief to not have to worry about breeding for blackspot resistance or flower characteristics. Wait a minute, though....what are ...
by jbergeson
Tue Dec 10, 2019 3:32 pm
Forum: Rose Hybridizers Association Forum
Topic: Prairie Joy x Cherry Frost
Replies: 3
Views: 113

Re: Prairie Joy x Cherry Frost

I just had the thought that if you popped 1027 into Zone 5 or warmer it might be a stunning climber or very large arching bush.
by jbergeson
Tue Dec 10, 2019 3:31 pm
Forum: Rose Hybridizers Association Forum
Topic: Prairie Joy x Cherry Frost
Replies: 3
Views: 113

Re: Prairie Joy x Cherry Frost

Good to see 1027 in someone else's yard, Rob! Mine hasn't been as smothered with blooms in the past few years for some reason as it was before when I took cuttings. And somewhat hesitant to repeat. And difficult to breed with....not a good seed setter and as a pollen parent the results have been uni...
by jbergeson
Mon Nov 25, 2019 2:20 pm
Forum: Rose Hybridizers Association Forum
Topic: So what's your magic number for days to harvest?
Replies: 23
Views: 2530

Re: So what's your magic number for days to harvest?

I think the whole concept of seeds is amazing. How there can be a little life that survives inside a dried-up brown pebble for years and can spring to life even after that.
by jbergeson
Sat Nov 23, 2019 7:28 pm
Forum: Rose Hybridizers Association Forum
Topic: So what's your magic number for days to harvest?
Replies: 23
Views: 2530

Re: So what's your magic number for days to harvest?

Wow, that's cool, Chuck. Congratulations. I was just thinking about this topic because today I harvested seed from the polyantha Pretty Polly Pink on potted plants that I had brought inside because the hips were totally green when winter came and I had to shut down the greenhouse. The pollinations w...
by jbergeson
Fri Nov 22, 2019 7:55 am
Forum: Rose Hybridizers Association Forum
Topic: How common are sports?
Replies: 3
Views: 174

Re: How common are sports?

Just keep an eye out. A flower-color sport will be pretty easy to spot. I had William Baffin sport to a soft pink. Also Morden Blush sports to white quite often. Other than that I haven't seen any. So no, it's not worth putting effort into just looking for sports, but if you look at your roses once ...
by jbergeson
Tue Nov 19, 2019 11:54 am
Forum: Rose Hybridizers Association Forum
Topic: rose hips without inner hair?
Replies: 10
Views: 380

Re: rose hips without inner hair?

Hi Srdjan! There has been discussion on this forum in the past about breeding for ediblility. Maybe you can find the discussions if you search. (try using google instead with a search term that includes "site:rosebreeders.org"). I seem to remember someone mentioning Old Blush, maybe due to lack of h...
by jbergeson
Sun Nov 17, 2019 9:37 pm
Forum: Rose Hybridizers Association Forum
Topic: How important is own root
Replies: 3
Views: 208

Re: How important is own root

I think you're making a good point. Roots are an important characteristic of a rose. Seedlings should be selected for good root characteristics as well, whatever they are...just select for roses that grow well in various conditions and you'll automatically be selecting for good roots. Own-root is th...