Search found 77 matches

by RBaxter
Tue Feb 12, 2019 11:16 pm
Forum: Rose Hybridizers Association Forum
Topic: most anticipated cross?
Replies: 19
Views: 341

Re: most anticipated cross?

The threat of RRV has dampened my excitement somewhat because I have nothing going that will be resistant. I do have a few Jersey Beauty x Aloha with cotyledons peeking up - think New Dawn with more wichuraiana, or Belindas Dream with more wichuraiana, that could yield a fragrant remontant climber. ...
by RBaxter
Thu Jan 10, 2019 7:26 pm
Forum: Rose Hybridizers Association Forum
Topic: First germination of the winter
Replies: 120
Views: 2810

Re: First germination of the winter

I've got a Jersey Beauty x Autumn Sunset peeking out today - that has a good chance to be a vigorous climber! Rob, for the previous one I'm hoping for a seed fertile, fragrant, remontant diploid that carries the disease resistance and increased cold resistance from multiflora and wichurana that I ca...
by RBaxter
Wed Jan 09, 2019 1:39 am
Forum: Rose Hybridizers Association Forum
Topic: First germination of the winter
Replies: 120
Views: 2810

Re: First germination of the winter

((R. multiflora x Blush Noisette) x (R. multiflora x Blush Noisette)) x Jersey Beauty was my first - in the fridge, in its baggie at that! I'd say about 30% of them sprouted in the cold dark icebox. The reciprocal cross did not germinate in its baggie, and none any of my other crosses did either. Go...
by RBaxter
Sat Jan 05, 2019 2:10 am
Forum: Rose Hybridizers Association Forum
Topic: David Austin
Replies: 5
Views: 293

Re: David Austin

With all due respect, I wonder how many of us would now be on our current paths if not for Mr. Austin's efforts and successes? Was he not a champion of fragrance? Wouldn't we all like to create a Radler tough and Austin fragrant rose? While we all don't live in "English" environments, I can report o...
by RBaxter
Fri Nov 23, 2018 12:27 pm
Forum: Rose Hybridizers Association Forum
Topic: Rising-Star-Honoree-David-Zlesak
Replies: 23
Views: 820

Re: Rising-Star-Honoree-David-Zlesak

Congrats Dr. Z!
by RBaxter
Fri Oct 05, 2018 8:09 am
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 2036

Re: Harvested hips

The follow-up.
by RBaxter
Fri Oct 05, 2018 8:07 am
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 2036

Re: Harvested hips

Capture2.PNG
by RBaxter
Fri Oct 05, 2018 8:02 am
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 2036

Re: Harvested hips

Here is the abstract of a follow-up to Henry's paper on activated carbon on using Driselase, a combination of cellulase, hemicellulase, pectinase, and other enzymes to open the pericarp. Gonna get me some enzymes! And as far as my storage method goes it might work for longer storage. I have yet to t...
by RBaxter
Thu Oct 04, 2018 9:22 pm
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 2036

Re: Harvested hips

Temporary chilled storage 60 to 90 days max. When I see something sprouting I know I'm tardy, but they rarely start in the fridge - too cold.
by RBaxter
Thu Oct 04, 2018 9:08 pm
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 2036

Re: Harvested hips

It's a cotton ball wetted with ±50:50 3% hydrogen peroxide and water. Baggies are left open and I rewet every now and then to keep it moist while allowing for some air flow. I haven't done any kind of study on what it does to the achenes, but it keeps the mold down and seems to let them breathe - ju...
by RBaxter
Sat Sep 29, 2018 12:54 am
Forum: Rose Hybridizers Association Forum
Topic: R. bracteata x Carefree Copper
Replies: 15
Views: 886

Re: R. bracteata x Carefree Copper

Don, I agree, it has been cracked, and Paul convinced me years ago to give up on starting from scratch with it. I'm now after sterile F1 crosses only, for use as climbers and hedge/security fence roses. I feel sort of obligated to give that a shot since I'm one of the few of us that lives where the ...
by RBaxter
Sat Sep 29, 2018 12:04 am
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 2036

Re: Harvested hips

I made an attempt to control myself this year. Autumn Sunset x Aloha Bracteata x Prairie Sunrise Bracteata x Applejack Bracteata x Jersey Beauty (possible super Mermaid) Bracteata x Carefree Copper (dissapointng hip set) Jersey Beauty x Autumn Sunset Jersey Beauty x Old Blush Bracteata x Aloha and t...
by RBaxter
Mon Sep 24, 2018 12:15 am
Forum: Rose Hybridizers Association Forum
Topic: Rose Genome and the Possibility of (almost) Inseparable Traits
Replies: 11
Views: 668

Re: Rose Genome and the Possibility of (almost) Inseparable Traits

it's been over forty years since I took a biology class, but this would explain the importance of bringing species roses back into the gene pool. Over time, in different species, I can see how both desirable and undesirable genes could become either more or less "separable".
by RBaxter
Sun Sep 23, 2018 11:51 pm
Forum: Rose Hybridizers Association Forum
Topic: Rose Genome and the Possibility of (almost) Inseparable Traits
Replies: 11
Views: 668

Rose Genome and the Possibility of (almost) Inseparable Traits

If we assume that Mother Nature prefers to use the formerly called "junk DNA", non-protein coding sections of the DNA as breakpoints during gene swapping as chromosomes align and swap chunks, then it stands to reason that by proximity some traits would be harder to separate than others. If that hold...
by RBaxter
Sun Sep 16, 2018 2:43 am
Forum: Rose Hybridizers Association Forum
Topic: R. bracteata x Carefree Copper
Replies: 15
Views: 886

Re: R. bracteata x Carefree Copper

Down here where bracteata is invasive it's not truly remontant. It has a late starting, fairly long blooming period, with a continual scattering of blooms afterward. Every bloom seems to make a hip, so I suppose if someone was brave enough to continually deadhead one it might be a true repeater. As ...
by RBaxter
Tue Sep 11, 2018 3:30 am
Forum: Rose Hybridizers Association Forum
Topic: R. bracteata x Carefree Copper
Replies: 15
Views: 886

Re: R. bracteata x Carefree Copper

Thanks for the link, I learned a bit more. I think next year I will restrict my pollen source to one, pollinate as many as I can on the same day of the week, and then harvest hips on an arbitrary weekly basis based on time since pollination. Maybe that strategy will increase the likelihood of one ha...
by RBaxter
Sat Sep 08, 2018 1:40 am
Forum: Rose Hybridizers Association Forum
Topic: R. bracteata x Carefree Copper
Replies: 15
Views: 886

R. bracteata x Carefree Copper

R. bracteata is so distantly related to the rest of our roses we all know that it is a tough nut to crack. Today I harvested a few hips of R. bracteata x Carefree Copper pollen. (thanks again Dr. D) They “felt promising” as in the hip flesh felt softer and riper than the few same age open pollinated...
by RBaxter
Sat Sep 08, 2018 12:27 am
Forum: Rose Hybridizers Association Forum
Topic: Regarding ancestry
Replies: 10
Views: 631

Re: Regarding ancestry

Don’t forget tetraploids. Tetraploidy further complicates even the Mendelian aspects Crossing two heterozygotes for homozygosity of one trait in diploids gives you a 1 in 4 chance. Crossing two heterozygotes for homozygosity of one trait in tetraploids gives you a 1 in 16 chance. Crossing two hetero...
by RBaxter
Sat Jun 23, 2018 8:08 pm
Forum: Rose Hybridizers Association Forum
Topic: Diploid vs Tetraploid - a crossroads
Replies: 15
Views: 1008

Re: Diploid vs Tetraploid - a crossroads

My hunch is that with tetraploid and higher ploidy species roses things are probably orderly during meiosis, with settled sets of pairs representing a high degree of influence of particular ancestors finding each other. With jumbled up moderns who knows? I guess it could be a free for all. That coul...