Search found 1735 matches

by Don
Sun Sep 16, 2018 10:05 am
Forum: Rose Hybridizers Association Forum
Topic: Blazes of light reveal how plants signal danger long distances
Replies: 2
Views: 79

Blazes of light reveal how plants signal danger long distances

By long distances they mean within the plant, from leaf to stem to leaf. Does anyone know Gilroy, he looks like a wild man.

https://phys.org/news/2018-09-blazes-re ... ances.html.
by Don
Sun Sep 02, 2018 8:49 am
Forum: Rose Hybridizers Association Forum
Topic: paper request on anthocyanins
Replies: 2
Views: 115

Re: paper request on anthocyanins

Check your gmail.
by Don
Mon Aug 13, 2018 7:46 pm
Forum: Rose Hybridizers Association Forum
Topic: possible book for your university library
Replies: 1
Views: 135

Re: possible book for your university library

Chapters 3,5,6 and 27 can be purcha$ed individually. I see where David Zlesak got seven citations in the rose chapter.
by Don
Sat Aug 04, 2018 12:19 am
Forum: Rose Hybridizers Association Forum
Topic: Identification request
Replies: 7
Views: 256

Re: Identification request

Were the goats real? Apparently they are tip hardy in that zone as well -

https://www.reuters.com/article/us-idah ... SKBN1KO28E
by Don
Wed Aug 01, 2018 11:32 pm
Forum: Rose Hybridizers Association Forum
Topic: Moving micro minis indoors
Replies: 10
Views: 294

Re: Moving micro minis indoors

The key to moving plants indoors sans mites is the soil. You can kill the mites easily enough with insecticidal spray or soap and water but the eggs remain in the soil and are nearly indestructible. Thoroughly rinse the roots and re-pot them in soil that has been steam sterilized (moisten the soil, ...
by Don
Mon Jun 18, 2018 11:16 am
Forum: Rose Hybridizers Association Forum
Topic: -Rising-Star-Awardee-Christian-Bedard
Replies: 6
Views: 327

Re: -Rising-Star-Awardee-Christian-Bedard

There is a semi-rational reason to keep playing the numbers game - plant patents have expiration dates. Repackaging the same genes resets that clock. Genetic engineering will be the game changer once the money and politics get squared away. My money is on Suntory. I'm not sure what companies will ex...
by Don
Mon Jun 18, 2018 4:39 am
Forum: Rose Hybridizers Association Forum
Topic: Remontancy
Replies: 24
Views: 1258

Re: Remontancy

Joe, have you considered switching to rhododendrons?
by Don
Mon Jun 18, 2018 4:35 am
Forum: Rose Hybridizers Association Forum
Topic: -Rising-Star-Awardee-Christian-Bedard
Replies: 6
Views: 327

Re: -Rising-Star-Awardee-Christian-Bedard

Bedard is playing a numbers game that is already exponentially non-sustainable. In the days when breeders were trying to coax organized bloom forms out of Baby Chateau and to spread out the carotenoids from Soeur Therese this strategy made sense. A hundred years later it's not reasonable to expect n...
by Don
Thu May 31, 2018 12:27 am
Forum: Rose Hybridizers Association Forum
Topic: First Blooms for 2015
Replies: 28
Views: 3436

Re: First Blooms for 2015

HI Dane, thanks. I have made many crosses with moyesii as pollen parent but only have a handful of seedlings. I have one with Joycie that has barely survived winter in the ground but does hang on and is fertile but none of the seedlings survived. I have another with Incantation that is a prolific bl...
by Don
Sun May 20, 2018 1:46 pm
Forum: Rose Hybridizers Association Forum
Topic: Could this be a sport?
Replies: 6
Views: 222

Re: Could this be a sport?

Jackie, the foliage in the original bloom photo looks chlorotic in a splotchy way that recalls ozone damage, incipient anthracnose or maybe a virus (my first impression). Do you know what the issue was? Can you give us side-by-side photos of the leaves of the original and the putative sport? Henry d...
by Don
Tue May 15, 2018 1:14 pm
Forum: Rose Hybridizers Association Forum
Topic: Root sports
Replies: 6
Views: 341

Re: Root sports

Then it must be possible to create graft chimera's by 'skinning' a piece of, say, Carefree Delight and replace the missing dermis tissue with some from, say, Tropicana. Would we not expect flowers from such a chimera to be structurally the same as those of Carefree Delight but orange in color instea...
by Don
Tue May 15, 2018 1:41 am
Forum: Rose Hybridizers Association Forum
Topic: The Rosa genome and insights into domestication of modern roses
Replies: 12
Views: 570

Re: The Rosa genome and insights into domestication of modern roses

>> Imagine how wealthy would the Kordes. Meilland and McGredy families would be today if they got a royalty for every offspring, grand-offspring, great grand-offspring, descended from their patented roses. Conversely, if they had the full knowledge of the rose genome along with crispr then would we ...
by Don
Mon May 14, 2018 6:19 pm
Forum: Rose Hybridizers Association Forum
Topic: "Propagation of Rose (Rosa Hybrida L.) Under Tissue Culture Technique"
Replies: 2
Views: 145

Re: "Propagation of Rose (Rosa Hybrida L.) Under Tissue Culture Technique"

The biggest obstacle I personally found was the time commitment. It was too hard find the time with a job and kids. It's not a difficult technique to master but does require some capital investment for things like a sterile hood for manipulations and a pressure cooker (in lieu of autoclave) for medi...
by Don
Fri May 04, 2018 7:27 pm
Forum: Rose Hybridizers Association Forum
Topic: The Rosa genome and insights into domestication of modern roses
Replies: 12
Views: 570

Re: The Rosa genome and insights into domestication of modern roses

>> Today, old cultivars are not commonly seen, only less than 100 traditional ones surviving.

Hmm. I wonder if Quarryhill has any of them or if an organized effort exists to preserve them.
by Don
Fri May 04, 2018 1:49 pm
Forum: Rose Hybridizers Association Forum
Topic: The Rosa genome and insights into domestication of modern roses
Replies: 12
Views: 570

Re: The Rosa genome and insights into domestication of modern roses

>> A homozygous derivative of Old Blush can be used as a reference without also pretending that it truly represents any one species. They call it a progenitor of modern roses - is it? >> any academic scientist who had some interest in the works of Luther Burbank generally kept quiet on the matter. T...
by Don
Thu May 03, 2018 3:34 pm
Forum: Rose Hybridizers Association Forum
Topic: The Rosa genome and insights into domestication of modern roses
Replies: 12
Views: 570

Re: The Rosa genome and insights into domestication of modern roses

>> I can usually count on any paper of this kind I read contradicting others I've read. And often enough the authors will neglect relevant facts. The import of this particular paper is still pretty impressive. I think a safe assumption would be that they did not publish all or even most of what they...
by Don
Tue May 01, 2018 3:12 pm
Forum: Rose Hybridizers Association Forum
Topic: The Rosa genome and insights into domestication of modern roses
Replies: 12
Views: 570

Re: The Rosa genome and insights into domestication of modern roses

" We developed an original in vitro culture protocol combining fine-tuned starvation, cold stress and hormonal treatments to induce R. chinensis ‘Old Blush’ microspores to switch from gametophyte to sporophyte development. This approach allowed microspores to initiate divisions, form homozygous cell...
by Don
Tue May 01, 2018 5:10 am
Forum: Rose Hybridizers Association Forum
Topic: what a species is, or isn't
Replies: 24
Views: 3017

Re: what a species is, or isn't

>> the former vastly outnumber the latter. This seems to be the case with Malus as well. I can't find the article but recall reading that all of the various domesticated apples are to be found among the phenotypes of Malus sieversii in the wild, and then some. The Ag station at Geneva NY has a diver...
by Don
Sat Apr 28, 2018 5:54 pm
Forum: Rose Hybridizers Association Forum
Topic: / Honeybee population isn't ‘crashing’ and seed pesticides are not driving health problems
Replies: 10
Views: 748

Re: / Honeybee population isn't ‘crashing’ and seed pesticides are not driving health problems

The EU ban on neonicoinoids is way more politically based than scientifically based and the price will be harsh. There will be higher food prices in the rich EU and food shortages that will be worse the lower down the economic ladder you go. >> the genetic literacy project has an agenda Yep, from th...