Save the New Dawn! Origin, reversion?
Conor MacDonald, Rhode Island, z6b
7 years ago
Featured Answer
Sort by:Oldest
Comments (34)
Embothrium
7 years agomad_gallica (z5 Eastern NY)
7 years agoRelated Discussions
New Dawn Deformity
Comments (18)Concerning whether plant viruses are systemic (i.e. is the entire plant infected). In 1995 Davis reported in a reviewed scientific publication that: "The California Grapevine Certification Program has been based on two assumptions about leafroll disease in grapevines: that the disease does not spread significantly in the field in California and that the viruses that cause the disease are evenly distributed in infected vines. Careful testing of the Foundation Plant Materials Service vineyards at Davis using a new ELISA test suggests that these assumptions are not true. Changes in the California Grapevine Certification Program are underway as a result of this new information." ( http://californiaagriculture.ucanr.org/landingpage.cfm?article=ca.v049n01p26&abstract=yes ). From the abstract one can click on the "Full Text" PDF to examine the full paper (you may have to hold down the control key). The following is a quote from the full paper: page 28 "The results revealed that for a few of the tested vines, samples collected from one side'were ELISA positive while the opposite side tested negative. These results suggest that in some vines GLRaVs are not distributed uniformly.". Is this still considered to be accurate? The following 2008 newsletter states: Page 37 "The R&C Program was guided at the outset by two assumptions about grapevine leafroll disease. The existing state of scientific knowledge at the time was that grapevine leafroll viruses spread only by grafting healthy stock with infected stock and did not spread naturally in vineyards. (Golino et al., 2002; Goheen et al.,1959). The second assumption was that the viruses that caused leafroll disease were evenly distributed through infected vines. (Rowhani and Golino, 1995). New technologies and many deteriorating vines later proved both assumptions inaccurate." ( http://fps.ucdavis.edu/WebSitePDFs/Newsletters&Publications/GrapeNewsletterOct2008.pdf ) ------------------------------------------ The key 2000 Mourey et.al. paper that documented uneven virus distribution in roses is at: http://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO.2000.90.5.522 It gives a reference to a 1998 paper that they summarize as stating: "virus distribution in the plant is often heterogeneous (1)." It also states: "ELISA test of cuttings. Six to eight single-node cuttings (approximately 5 cm long) of healthy and PNRSV-infected Anna and Lnidas plants were excised in the medial zone of floral stems at anthesis. Basal ends of the cuttings were dipped into 0.5% (wt/wt) ï¢-indole butyric acid. To protect them against fungal infection, they were treated with 800 mg of pyrimethanil (SCALA; AgrEvo, Berlin) per liter. Cuttings were cultivated in perlite in a heated glasshouse (minimal temperature 25°C) at 80% relative humidity. After 15 days, the rooted cuttings were transferred to a culture room at 22°C with a 16-h photoperiod. For each cutting, leaflets from the axillary leaf were tested by ELISA when cuttings were removed from the mother plant. Young shoots grown from the axillary buds of each cutting were tested by ELISA when they were 2 to 5 cm long." Table 1 in the paper tells the number of days after the mother plants were tested that the leafed out cuttings were tested (30 to 86) and the number of samples (48 to 76). In the conclusion section they state: "A total of 89% (59 out of 66) of Anna stems was entirely PNRSV negative when axillary shoots from these stems developed after the decapitation of the floral stem, after the development of cuttings, or grown in vitro were tested by ELISA. ELISA tests of leaves from these stems were all negative. Since IC-RT-PCR conducted in parallel on all the explants from three (out of seven) of these stems also were negative, we suspect that these stems were virus free, even if they belonged to infected plants, or that the viral titer was very low in the stems." Please notice the conservative word "suspect" and the conservative statement "or that the viral titer was very low in the stems." In my experience this is the normal way of stating results as scientists realize that our interpretations and experimental methods are not normally "absolutely definitive". -------------------------------- How could this information be useful to a rose gardener? First an example. If one finds that a branch that shows signs of RRD, the RRD literature suggests that if one cuts off the branch at the ground level that the plant "may" be saved. I have followed this advice and saved several important plants. Now, if a rose grower finds virus type symptoms on one branch; the older "Rose Virus" literature is telling him/her that it is futile to try to save the plant by either cutting off the diseased branch or by taking a cutting from a distant branch for a new start. I suggest that the literature should state that at present there is some scientific evidence that one "may" be able to obtain a virus free plant from cutting starts. And, by analogy to RRD, possibly cutting off the infected care at root level may save the plant. Here is a link that might be useful: 2000 Mourey et. al. rose virus paper...See MoreA New Dawn
Comments (12)When I took the fabric dying class, the instructor said she uses Dawn to rinse out residual dye until the water is clear. So I got some of the "original" formula (could only find it at Wally World) and some of the newer "flavors." I have not noticed a difference, but then, my test was not totally scientific -- no side by side comparisons or control samples. You might remember how annoyingly detail oriented my tests can be sometimes....See MoreNew Dawn vs Awakening bloom size
Comments (38)Thank you Kitty. I read your posts, but dont omment as betwen Houzz and my Kindle, I sound like an idiot. My Awakening has finally awoken in her new home and is finally giving a bit of a show. I also discovered another one that grew from roots left in the soil from when she was transplanted so Ill move that one over to join the other eventually. I love the repetition in that are which if finally starting to take shape. Now I can see what colors and shapes are needed aadditionally.... maybe 4 more Darlows Enigmas among others. Unfortunately its too weedy for pics this flush. I only just cut the grass on that level. New Dawn is aamazing as usual. This rose only improves with age, but requires sun and dead heading for repeat bloom. Fertilizer also helps after the huge 1st flush. I;ll try to add pics from my phone of ND....See MoreBathroom Tile — How to match? Is it original?
Comments (27)mosaic design tool online Alas, they took this down sometime last year. I'm not sure if dealers still have access to it, but it's gone from their site. They do still have the pdf of standard patterns, though. Looking at the blue bath again this morning, I suspect that either it had linoleum that finally wore out or that the floor tile had to be disturbed for some repair and then the current floor was put in. Lino was a very popular floor back in the 20s and 30s and they had many different insets and patterns available. You can see a fair number of 1920s bathrooms here: http://antiquehomestyle.com/inside/bathrooms/1920s/index.htm Gallery link at upper left of page....See Moreboncrow66
7 years agoVaporvac Z6-OhioRiverValley
7 years agofig_insanity Z7b E TN
7 years agolast modified: 7 years agoConor MacDonald, Rhode Island, z6b thanked fig_insanity Z7b E TNmcnastarana
7 years agoEmbothrium
7 years agolast modified: 7 years agoConor MacDonald, Rhode Island, z6b thanked EmbothriumVaporvac Z6-OhioRiverValley
7 years agooldrosarian
7 years agoConor MacDonald, Rhode Island, z6b
7 years agoUser
7 years agolast modified: 7 years agosummersrhythm_z6a
7 years agoVaporvac Z6-OhioRiverValley
7 years agosummersrhythm_z6a
7 years agoEmbothrium
7 years agolast modified: 7 years agofig_insanity Z7b E TN
7 years agojjpeace (zone 5b Canada)
7 years agojacqueline9CA
7 years agomcnastarana
7 years agototoro z7b Md
7 years agoVaporvac Z6-OhioRiverValley
7 years agosummersrhythm_z6a
7 years agoLyla Zone 7b/8a
7 years agoVaporvac Z6-OhioRiverValley
7 years agosummersrhythm_z6a
7 years agolast modified: 7 years agofig_insanity Z7b E TN
7 years agoVaporvac Z6-OhioRiverValley
7 years agolast modified: 7 years agojacqueline9CA
7 years agoEmbothrium
7 years agolast modified: 7 years agoLyla Zone 7b/8a
7 years ago
Related Stories
REMODELING GUIDESOriginal Home Details: What to Keep, What to Cast Off
Renovate an older home without regrets with this insight on the details worth preserving
Full StoryGREAT HOME PROJECTSUpgrade Your Windows for Beauty, Comfort and Big Energy Savings
Bid drafts or stuffiness farewell and say hello to lower utility bills with new, energy-efficient windows
Full StoryBATHROOM DESIGNWater Damage Spawns a Space-Saving Bathroom Remodel
A game of inches saved this small New York City bathroom from becoming too cramped and limited
Full StoryFUN HOUZZDecorated Houses Help Save a Detroit Neighborhood
Art's a start for an inner-city community working to stave off urban blight and kindle a renaissance
Full StoryREMODELING GUIDESLive the High Life With Upside-Down Floor Plans
A couple of Minnesota homes highlight the benefits of reverse floor plans
Full StoryREMODELING GUIDESHouzz Tour: Baroque Minimalism in New Jersey
Modern furniture meets ornate elements in a 19th-century Hoboken brownstone, renovated with respect for its original features
Full StorySAVING WATERHouzz Call: Are You Letting Go of Your Lawn?
Many facing a drought are swapping turf for less thirsty plantings. If you’re one of them, we’d like to hear about it
Full StoryVICTORIAN DESIGNHow to Gently Bring a Victorian Home Into the 21st Century
Bring your Victorian home up-to-date while still celebrating its original details with these stylish but sensitive ideas
Full StoryRANCH HOMESHouzz Tour: Respectful Updates for a Midcentury Atlanta Ranch
An expansion and renovation give a Georgia home a bright new look while honoring the original profile
Full StoryBASEMENTSHouzz TV: Ashton Kutcher Surprises Mom With the Basement of Her Dreams
In a new Houzz original series, the actor uses the Houzz app to find a designer and shop products to turn the dark area into a bright space
Full Story
Vaporvac Z6-OhioRiverValley