Search found 334 matches

by Larry Davis
Fri Dec 07, 2018 6:44 pm
Forum: Rose Hybridizers Association Forum
Topic: HUMAN AND ANIMAL HEALTH Some Hematological and Non-Specific Immune Responses of Rosehip (Rosa canina) - Fed Russian Stu
Replies: 3
Views: 60

Re: HUMAN AND ANIMAL HEALTH Some Hematological and Non-Specific Immune Responses of Rosehip (Rosa canina) - Fed Russian

Nyblom and associates in Scandanavia did a lot with trying to commercialize various caninae. There are also papers from Turkey, mainly in Acta Horticulturae I think. (That's a series of books publishing papers from various European meetings.)
by Larry Davis
Fri Dec 07, 2018 6:40 pm
Forum: Rose Hybridizers Association Forum
Topic: Rebloom
Replies: 7
Views: 136

Re: Rebloom

Occasional rebloom may well be buds that remained dormant in the first flush. Up the street there is an enormous, unpruned Dr. Huey which has occasional rebloom in mid to late summer in some years. I investigated and it appears to be later shoots are coming from further down the main canes that the ...
by Larry Davis
Mon Dec 03, 2018 10:41 pm
Forum: Rose Hybridizers Association Forum
Topic: Source of data on hip production by cultivar.
Replies: 6
Views: 155

Re: Source of data on hip production by cultivar.

I think not. Asaystematic review of germination studies (which I did and posted on the RHA site) identifies lots of plants that produce enough hips to get scored by someone somewhere. AT Help-Me-Find roses search you can look up the purported progeny of any rose listed there. That of course only ind...
by Larry Davis
Sun Dec 02, 2018 2:56 pm
Forum: Rose Hybridizers Association Forum
Topic: RrGT1, a key gene associated with anthocyanin biosynthesis, was isolated from Rosa rugosa and identified via overexpress
Replies: 5
Views: 126

Re: RrGT1, a key gene associated with anthocyanin biosynthesis, was isolated from Rosa rugosa and identified via overexp

I did a little detective work. The journal has changed names at least 3 times and is now Forest Ecosystems a Springer open access journal. Previous names, Forestry Studies, and Forest Science and Practice. The original article is available through Oriprobe information services for $31.95. I google s...
by Larry Davis
Sat Dec 01, 2018 8:28 pm
Forum: Rose Hybridizers Association Forum
Topic: Morphological Variation and Palynomorphology of Rosa laxa in Xinjiang, China
Replies: 2
Views: 79

Re: Morphological Variation and Palynomorphology of Rosa laxa in Xinjiang, China

Very interesting abstract. Is this a type of the R laxa Retzius that Griffith Buck used?
by Larry Davis
Sat Dec 01, 2018 8:25 pm
Forum: Rose Hybridizers Association Forum
Topic: Electron transport chain
Replies: 3
Views: 96

Re: Electron transport chain

Yes, a cartoon. I don't think the various complex I, II, III groups look much at all like the illustrations. For sure the ATPase is much more inscrutable. Even the best molecular dynamics simulations have a very hard time handling a protein with 50,000 atoms plus a few lipid molecules and a sprinkli...
by Larry Davis
Sat Dec 01, 2018 8:02 pm
Forum: Rose Hybridizers Association Forum
Topic: About #1100
Replies: 3
Views: 133

Re: About #1100

Good for you.I got three on one plant that was infected with RRD. Whether that had anything to do with it I have no idea. But no hips took on 2 other plants that were not infected. I was using pollen mostly of things like Carefree sunshine, Rainbow KO or whatever else blooms early. Of course I tried...
by Larry Davis
Fri Nov 30, 2018 10:17 am
Forum: Rose Hybridizers Association Forum
Topic: About #1100
Replies: 3
Views: 133

About #1100

Not to distract from David's achievements, I've moved this to a separate line. For Philipla. Unfortunately this rose took 5 years to bloom at all. I guess it needs a specific amount of accumulated biomass to feel like it. I made a bunch of cuttings this summer and will grow them out to see how many ...
by Larry Davis
Fri Nov 30, 2018 10:00 am
Forum: Rose Hybridizers Association Forum
Topic: RrGT1, a key gene associated with anthocyanin biosynthesis, was isolated from Rosa rugosa and identified via overexpress
Replies: 5
Views: 126

Re: RrGT1, a key gene associated with anthocyanin biosynthesis, was isolated from Rosa rugosa and identified via overexp

I think where they went astray was in accepting Zizhi as being "R rugosa" even while knowing that it is a hybrid. I'd say that's more a failure of the typical rose classification which bins things into groups that carry species names even when we know they' re hybrids. And secondarily that during tr...
by Larry Davis
Fri Nov 30, 2018 9:41 am
Forum: Rose Hybridizers Association Forum
Topic: Electron transport chain
Replies: 3
Views: 96

Re: Electron transport chain

Videos like that really recharge my battery. Good to see that someone is doing effective science communication. Now if they'd make one explaining how plants resist blackspot.....
by Larry Davis
Fri Nov 23, 2018 11:33 am
Forum: Rose Hybridizers Association Forum
Topic: Rising-Star-Honoree-David-Zlesak
Replies: 20
Views: 409

Re: Rising-Star-Honoree-David-Zlesak

Attempting to post a photo of #1100
by Larry Davis
Fri Nov 23, 2018 10:46 am
Forum: Rose Hybridizers Association Forum
Topic: Rising-Star-Honoree-David-Zlesak
Replies: 20
Views: 409

Re: Rising-Star-Honoree-David-Zlesak

Thank you David for a very clear description of the bad news. And the possibility of some good. Happy Thanksgiving holiday weekend. Yesterday I had some time to sort roses for winter storage (putting pots below ground level and adding leaves). Came a cross a young bush in the making, of Brite Eyes x...
by Larry Davis
Tue Nov 20, 2018 6:42 pm
Forum: Rose Hybridizers Association Forum
Topic: Rising-Star-Honoree-David-Zlesak
Replies: 20
Views: 409

Re: Rising-Star-Honoree-David-Zlesak

Very good David. I'm glad the ARS notices rose breeders who aren't corporate employees.
by Larry Davis
Sat Nov 17, 2018 8:34 pm
Forum: Rose Hybridizers Association Forum
Topic: Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite EyesTM (‘RADbrite’)
Replies: 15
Views: 360

Re: Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite EyesTM (‘RADbrite’)

I especially like the yellow. Does it keep its color better than Carefree Sunshine and Carefree Sunshine? Fading is the thing that's gotten me with those as parents. No duration of bright yellow before it goes to white in OP and many crosses. So far my best yellows come from First Impression and Soe...
by Larry Davis
Fri Nov 16, 2018 10:04 pm
Forum: Rose Hybridizers Association Forum
Topic: Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite EyesTM (‘RADbrite’)
Replies: 15
Views: 360

Re: Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite EyesTM (‘RADbrite’)

Don't have much of interest to report on Brite Eyes. Only one seedling so far has made it into my book of numbered plants. That was a yellow single with a red edge that develops in sun. I do have one or two seedlings each with Austrian Copper pollen or R pomifera pollen. Waiting for those to bloom. ...
by Larry Davis
Wed Nov 14, 2018 11:44 pm
Forum: Rose Hybridizers Association Forum
Topic: Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite EyesTM (‘RADbrite’)
Replies: 15
Views: 360

Re: Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite EyesTM (‘RADbrite’)

Brite Eyes has been good rose for me so far, thought not so hardy as I'd like. I was surprised that both it and High Voltage froze nearly to the ground with a -10 F chill a couple nights. Reasonably fertile, tested only as female so far. Only problem is that it tends to singleness and the pale cente...
by Larry Davis
Sun Oct 21, 2018 8:50 pm
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 1661

Re: Harvested hips

Sorry i wasn't clear enough. I didn't mean that simple hydration (imbibition) would split achenes, but the swelling that results from the uptake of water during the initiation of germination. That is when the cotyledons begin to enlarge so that they can open out, turn green and begin photosynthesis....
by Larry Davis
Sat Oct 20, 2018 8:15 pm
Forum: Rose Hybridizers Association Forum
Topic: Harvested hips
Replies: 38
Views: 1661

Re: Harvested hips

I doubt that amylase would have any effect on anything because there is no free starch in the achene outer coat. It is all pectins of one sort or another at the suture. that requires a pectinase such as the drisilase mixture contains. Lipase would not likely get into the actual seed coat. I have no ...
by Larry Davis
Sun Sep 16, 2018 10:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Blazes of light reveal how plants signal danger long distances
Replies: 2
Views: 213

Re: Blazes of light reveal how plants signal danger long distances

My observation, lots of botanists are a bit rrrright or lefffft of center. We've had a few here at K-State. Wisconsin has had more than their share through the years. For instance Hugh Iltis (evolution of maize) and Folke Skoog (M.S. medium).I see that Gilroy was educated at Edinburgh.
by Larry Davis
Wed Sep 12, 2018 11:26 pm
Forum: Rose Hybridizers Association Forum
Topic: looking for a paper
Replies: 1
Views: 191

Re: looking for a paper

I think I've located it. Give me a couple days + your e-mail address in a P.M. to ldavis located at ksu.edu