Search found 1054 matches

by philip_la
Wed Apr 10, 2019 12:29 am
Forum: Rose Hybridizers Association Forum
Topic: Flowering, Drought and Disease Tolerance, and Landscape Performance of Landscape Roses Grown under Low-input Conditions
Replies: 2
Views: 230

Re: Flowering, Drought and Disease Tolerance, and Landscape Performance of Landscape Roses Grown under Low-input Conditi

THanks, Henry. Very interesting. It's good to see some of the not-so-common cultivars in these parts tested, but I'm a little surprised by the lack of some which I would have thought to be the truly tried and true, by Texas standards. Katy Road Pink, the listed parent of Katy Girl, is in fact a stud...
by philip_la
Sun Apr 07, 2019 12:14 am
Forum: Rose Hybridizers Association Forum
Topic: Still trying to wrap my head around Canninae meiosis, and how to overcome...
Replies: 12
Views: 503

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

Doug, I missed your post earlier, and I'm only just wrapping my head around it... That is, in theory, a hexaploid (huh??!!) (gallica (56n) x cannina (35n)), with a darned-if-we-knowploid (14, 28, 42, or 56n) acicularis? How do Alba Maxima and its sport, Alba Semi-plena, usually segregate when used f...
by philip_la
Sat Apr 06, 2019 11:45 pm
Forum: Rose Hybridizers Association Forum
Topic: Erinnerung an (souvenir de) Brod?
Replies: 12
Views: 1107

Re: Erinnerung an (souvenir de) Brod?

I'm envious. I finally got my EaB in the ground, and have yet to see signs of buds. Keeping my fingers crossed as it's still early -- we had a late and highly unusual freeze that set a number of things back. (Nipped all the peach flowers -- no fruit this year on my tree. :-( ) I can't put a finger o...
by philip_la
Sat Apr 06, 2019 11:23 pm
Forum: Rose Hybridizers Association Forum
Topic: Unreduced pollen in roses
Replies: 4
Views: 238

Re: Unreduced pollen in roses

A little off-topic, David, but in the case of unreduced pollen from a diploid creating a polyploid, are those polyploids likely to have any more cold-hardiness than their diploid seedlings? I recall reading that polyploid species are more common in colder climates, but don't recall the supposed reas...
by philip_la
Sat Apr 06, 2019 11:11 pm
Forum: Rose Hybridizers Association Forum
Topic: Varying Germination with Differing Pollen Parents
Replies: 13
Views: 424

Re: Varying Germination with Differing Pollen Parents

Mike, my setigera serena x mutabilis was a germination from last year, and it is still too small for material. I don't know that it will have pollen to offer when the time comes -- my impression is that the likelihood favors a dioecious female. I expect another 2 years before it blooms regardless. I...
by philip_la
Mon Apr 01, 2019 1:40 pm
Forum: Rose Hybridizers Association Forum
Topic: Varying Germination with Differing Pollen Parents
Replies: 13
Views: 424

Re: Varying Germination with Differing Pollen Parents

I cannot speak as to why, but I had read that mutabilis pollen is frequently quite cooperative, and often can be used to pollinate some otherwise unwilling mothers. I have some setigera x mutabilis seedlings growing now, but R.setigera is usually selective of other synstyllae, reportedly. I was able...
by philip_la
Wed Mar 27, 2019 9:04 am
Forum: Rose Hybridizers Association Forum
Topic: Do more richly colored seedlings have more richly colored blooms?
Replies: 16
Views: 1173

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

Thanks, David. That's very interesting. I would have expected a little more correlation towards darker foliage/redder stems on the seedlings that exhibited high anthocyanins, and would have thought there might be a *slightly* higher inclination towards red hues in their blossoms, though not obligato...
by philip_la
Thu Mar 14, 2019 10:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Basye's Purple (F2) with thornless and black stems.
Replies: 14
Views: 628

Re: Basye's Purple (F2) with thornless and black stems.

Suggestions come cheap. The realizations are where it's really at. ;-)

I believe R. fedtshenkoana is tetraploid, and Basye's purple is diploid, FWIW.

Good luck!
by philip_la
Thu Mar 14, 2019 2:15 pm
Forum: Rose Hybridizers Association Forum
Topic: cherry frost & lemon drift
Replies: 15
Views: 830

Re: cherry frost & lemon drift

A very nice plant, by all accounts, and if you do a search on this forum, there is a bit of info. Here's one discussion with link's to stories about Julie's introduction: http://www.rosebreeders.org/forum/viewtopic.php?f=2&t=55914&p=67697&hilit=cherry+frost#p67697 (Julie also posted a beautiful resp...
by philip_la
Wed Mar 13, 2019 1:29 pm
Forum: Rose Hybridizers Association Forum
Topic: Basye's Purple (F2) with thornless and black stems.
Replies: 14
Views: 628

Re: Basye's Purple (F2) with thornless and black stems.

Well, if you could get a hint of fedtschenkoana foliage on it and maintain *some* of its other attributes, I think that could be pretty stunning as well. I've always wanted to see a mauve flower hung on R.f. foliage.
by philip_la
Wed Mar 13, 2019 12:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Still trying to wrap my head around Canninae meiosis, and how to overcome...
Replies: 12
Views: 503

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

Sorry to be slow at acknowledging replies. It's been a while since I've had biology, which combined with my precocious senility makes this all a little hard for me to process. I had to look up Meiosis in Wikipedia so that I can attempt to ask intelligent questions. But just to make sure I'm understa...
by philip_la
Mon Mar 11, 2019 2:00 am
Forum: Rose Hybridizers Association Forum
Topic: Still trying to wrap my head around Canninae meiosis, and how to overcome...
Replies: 12
Views: 503

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

In prior discussions, the notion of overcoming the Caninae Meiosis of e.g. Rosa glauca (as a mother, to maintain desireable qualities) was likened to trying to steer a large ship with an oar while the rudder was in a set position. I presume this is primarily a question of quantities of genes, but pe...
by philip_la
Mon Mar 11, 2019 1:25 am
Forum: Rose Hybridizers Association Forum
Topic: Basye's Purple (F2) with thornless and black stems.
Replies: 14
Views: 628

Re: Basye's Purple (F2) with thornless and black stems.

Wonderful coloring on that one, André. I have no personal experience with any of these roses, living in a hotter climate, but my mind went to crossing perhaps with Ann Endt, to reinforce some of the genetics while avoiding inbreeding(? -- Such an idea might lack the advantages of selfing, but I don'...
by philip_la
Mon Mar 11, 2019 1:01 am
Forum: Rose Hybridizers Association Forum
Topic: The clone going around called 'Rosa alabukensis'
Replies: 20
Views: 967

Re: The clone going around called 'Rosa alabukensis'

"corymbose inflorescences disposed in the apex of the flowering branches."
...And saying it in plain English required about 3/4 as many syllables...
Reminds me of when and Englishman had to translate "articulated lorry" for me. (It's a big truck.)
by philip_la
Thu Mar 07, 2019 5:37 pm
Forum: Rose Hybridizers Association Forum
Topic: Do more richly colored seedlings have more richly colored blooms?
Replies: 16
Views: 1173

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

Looking at the early spring growth on some of my plants, I had an epiphany: It appears the cotyledon colors of seedlings might correlate with the first flush of new growth on the adult plants. (I don't have statistics to bear that out, but looking at "average" seedling color right now, and comparing...
by philip_la
Fri Feb 22, 2019 12:31 pm
Forum: Rose Hybridizers Association Forum
Topic: help with i,d.?
Replies: 17
Views: 600

Re: help with i,d.?

Could be a Kordes shrub, such as Zaide, or depending on the plant's architecture and fragrance, might belong to another collection. https://www.kordes.us/browse?f%5B0%5D=color%3A1&f%5B1%5D=type%3A83&f%5B2%5D=type%3A87&f%5B3%5D=type%3A84&f%5B4%5D=type%3A86&f%5B5%5D=type%3A88 If you acquired a Kordes,...
by philip_la
Fri Feb 22, 2019 12:12 pm
Forum: Rose Hybridizers Association Forum
Topic: Hardy, Everblooming Climbers
Replies: 55
Views: 2212

Re: Hardy, Everblooming Climbers

David Z., have you tried mating your R. maximowicziana lines with your setigera lines? I don't have R. maximowicziana, but that's a route that interests me. I don't know if R. maximowicziana has the same inclination for RRD as the multifloras, but even if so, it seems there could be other arguments ...
by philip_la
Fri Feb 22, 2019 11:52 am
Forum: Rose Hybridizers Association Forum
Topic: Opinions of Landscape Roses Available for Purchase and Preferences for the Future Market
Replies: 1
Views: 119

Re: Opinions of Landscape Roses Available for Purchase and Preferences for the Future Market

Thanks, Henry. An interesting article. (I wish they had put the data into bar graphs to make it a lot quicker to process.)

The researchers must have been somewhere out west based on respondent familiarity with rust! LOL
by philip_la
Fri Feb 22, 2019 11:36 am
Forum: Rose Hybridizers Association Forum
Topic: new breeding trick - scare your roses
Replies: 2
Views: 192

Re: new breeding trick - scare your roses

I've been scaring them quite literally to death. It hasn't worked out so well for me thus far.
by philip_la
Wed Feb 13, 2019 11:18 pm
Forum: Rose Hybridizers Association Forum
Topic: most anticipated cross?
Replies: 19
Views: 589

Re: most anticipated cross?

Cool. I don't know enough to calculate the hypothetical odds with the ploidies, Joe, but I suppose there is a one-in-several-dozen chance of a rebloomer from that pedigree. (You probably have a better grasp of the numbers than I.) What great luck! What's also nice is that you now know that the femal...