Search found 1024 matches

by henry kuska
Tue Sep 03, 2019 10:44 am
Forum: Rose Hybridizers Association Forum
Topic: Pollen "cryopreservation" of 6 modern rose cultivars.
Replies: 0
Views: 566

Pollen "cryopreservation" of 6 modern rose cultivars.

" Pollen cryopreservation of 6 modern rose cultivars. Author(s) : Li ZeDi ; Du Ying ; Jiang XueRu ; Lu YueXiu ; Ren RuiFen ; Zhang YiXuan ; Liu Yan Author Affiliation : College of Landscape Architecture, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National ...
by henry kuska
Sat Aug 31, 2019 8:16 pm
Forum: Rose Hybridizers Association Forum
Topic: Roses to consider for breeding?
Replies: 6
Views: 398

Re: Roses to consider for breeding?

I had an early Carefree Beauty and one that I purchased much later. No comparison. I assume that the second one was virused as were many of Dr. Buck's roses (sooner or later).
by henry kuska
Tue Aug 13, 2019 10:15 am
Forum: Rose Hybridizers Association Forum
Topic: genes and flower color (technical)
Replies: 3
Views: 252

genes and flower color (technical)

"These findings indicate that these genes may be involved in the flower color difference in the rose mutants, and competition between anthocyanin and flavonol biosynthesis is a primary cause of flower color variation, with its regulation reflected by transcriptional and secondary metabolite levels."...
by henry kuska
Mon Aug 05, 2019 2:00 pm
Forum: Rose Hybridizers Association Forum
Topic: New advanced rose rosette virus research
Replies: 5
Views: 295

Re: New advanced rose rosette virus research

Early on, rose(s) thought resistant turned out not to be so I think that the researchers are now being very cautious. Perhaps we will learn more when the (overdue) April 2019 Rose Clean Plant Meeting Minutes are released. http://rosebreeders.org/forum/viewtopic.php?f=2&t=56243 I assume that they wil...
by henry kuska
Sat Aug 03, 2019 9:51 am
Forum: Rose Hybridizers Association Forum
Topic: New advanced rose rosette virus research
Replies: 5
Views: 295

Re: New advanced rose rosette virus research

" When removing the infected plant, bag it before cutting the plant down or quickly place the cut plant material in a trash bag to help isolate and prevent the eriophyid mite vectors from escaping." "Much scientific research about various aspects of rose rosette disease is ongoing, and as new resear...
by henry kuska
Fri Aug 02, 2019 11:08 pm
Forum: Rose Hybridizers Association Forum
Topic: characterization of the transcriptome of susceptible and resistant rose species in response to powdery mildew
Replies: 0
Views: 595

characterization of the transcriptome of susceptible and resistant rose species in response to powdery mildew

From the full paper: "In this study, we sequenced and assembled the transcriptome of the susceptible R. gigantea and the resistant R. longicuspis using de novo sequence assembly. The main aims ofthe study were (1) to compare the PM resistance/susceptibility mechanisms of R. gigantea and R. longicusp...
by henry kuska
Thu Aug 01, 2019 12:13 pm
Forum: Rose Hybridizers Association Forum
Topic: New advanced rose rosette virus research
Replies: 5
Views: 295

Re: New advanced rose rosette virus research

"latest" is relative. Possibly the old saying: ask 3 experts and you will get 4 answers.
https://ucanr.edu/sites/ncpnrose/Rose_E ... Materials/

The following is a May 10, 2019 update:
https://today.agrilife.org/2019/05/10/rosette2019/
by henry kuska
Tue Jul 30, 2019 10:57 am
Forum: Rose Hybridizers Association Forum
Topic: New advanced rose rosette virus research
Replies: 5
Views: 295

New advanced rose rosette virus research

See:
https://www.biorxiv.org/content/biorxiv ... 0.full.pdf

What particularly caught my attention is that they were able to infect plants other than roses.
by henry kuska
Mon Jul 22, 2019 12:00 am
Forum: Rose Hybridizers Association Forum
Topic: Grid for pollen measurement
Replies: 14
Views: 670

Re: Grid for pollen measurement

Use the keywords microscopic calibration in an ebay search.
by henry kuska
Sun Jul 07, 2019 3:14 pm
Forum: Rose Hybridizers Association Forum
Topic: Heat Stress Comparative transcriptome analysis of Rosa chinensis
Replies: 0
Views: 629

Heat Stress Comparative transcriptome analysis of Rosa chinensis

Title: "Comparative transcriptome analysis of Rosa chinensis ‘Slater's crimson China’ provides insights into the crucial factors and signaling pathways in heat stress response"

See:

https://www.sciencedirect.com/science/a ... 2819302815
by henry kuska
Sun Jun 23, 2019 11:10 am
Forum: Rose Hybridizers Association Forum
Topic: Variegated roses?
Replies: 35
Views: 2293

Re: Variegated roses?

If it is an aphid spread virus, it appears that the probability is significant.
by henry kuska
Fri Jun 21, 2019 11:34 am
Forum: Rose Hybridizers Association Forum
Topic: Variegated roses?
Replies: 35
Views: 2293

Re: Variegated roses?

Kim, how does your friend know that the rose is not virused?