Search found 932 matches

by henry kuska
Thu May 16, 2019 4:18 pm
Forum: Rose Hybridizers Association Forum
Topic: A.R.T.S. national trial gardens
Replies: 1
Views: 37

A.R.T.S. national trial gardens

"Each year, more rose breeders send their most promising introductions to the A.R.T.S. national trial gardens to be evaluated under low-input conditions across the various U.S. climate regions. Each year’s set of trial roses are grown side by side with two industry standard/control roses that have w...
by henry kuska
Thu May 16, 2019 4:13 pm
Forum: Rose Hybridizers Association Forum
Topic: "assay reveal the presence of rose cryptic virus-1 in the United Kingdom"
Replies: 1
Views: 16

Re: "assay reveal the presence of rose cryptic virus-1 in the United Kingdom"

Here is a general review:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2880111/

" In plants, they appear to persist indefinitely. For example, years of continuous tissue culture, thermotherapy and meristem tip culture were unable to cure plants of partitiviruses (Szegö et al. 2005). "
by henry kuska
Thu May 16, 2019 10:37 am
Forum: Rose Hybridizers Association Forum
Topic: "assay reveal the presence of rose cryptic virus-1 in the United Kingdom"
Replies: 1
Views: 16

"assay reveal the presence of rose cryptic virus-1 in the United Kingdom"

Title: " High throughput sequencing and RT-qPCR assay reveal the presence of rose cryptic virus-1 in the United Kingdom" "A sample with symptoms similar to those caused by rose rosette virus was positive for RoCV1; further studies will be undertaken to investigate if those symptoms were due to mixed...
by henry kuska
Mon May 13, 2019 10:35 am
Forum: Rose Hybridizers Association Forum
Topic: Can anyone update this information?
Replies: 3
Views: 233

Re: Can anyone update this information?

The powerpoints have not yet appeared, but this summary concerning the rose rosette virus has:

https://today.agrilife.org/2019/05/10/r ... XPZ9pTaOh8
by henry kuska
Sat Apr 13, 2019 9:06 pm
Forum: Rose Hybridizers Association Forum
Topic: Can anyone update this information?
Replies: 3
Views: 233

Re: Can anyone update this information?

Today I received an email that the plans are to post (within a month) the presentation powerpoints on the NCPN Rose web site.
by henry kuska
Fri Apr 12, 2019 10:31 am
Forum: Rose Hybridizers Association Forum
Topic: background reading -Apomixis
Replies: 0
Views: 42

background reading -Apomixis

"In agriculture, apomixis has the potential to transform plant breeding, allowing new varieties to retain valuable traits through asexual reproduction. The production of seeds without sexual union is considered the holy grail of plant biology (Hofmann 2010)." See: https://link.springer.com/article/1...
by henry kuska
Fri Apr 12, 2019 10:25 am
Forum: Rose Hybridizers Association Forum
Topic: By following what is happening with related plants
Replies: 1
Views: 90

By following what is happening with related plants

"Experimental procedures exploiting RNAi approaches allowed the generation of Prunus necrotic ringspot virus (PNRSV) resistant individuals of a cherry rootstock217. Grafting of these individuals demonstrated small RNA transport from rootstock to scion, resulting in “Emperor Francis” scions becoming ...
by henry kuska
Thu Mar 28, 2019 10:50 am
Forum: Rose Hybridizers Association Forum
Topic: Can anyone update this information?
Replies: 3
Views: 233

Can anyone update this information?

This meeting is getting close. Is there any updated information available?

http://nationalcleanplantnetwork.org/?calitem=419714
by henry kuska
Sat Mar 23, 2019 12:34 pm
Forum: Rose Hybridizers Association Forum
Topic: has-anyone-experienced-such-a-thing
Replies: 0
Views: 91

has-anyone-experienced-such-a-thing

"Turns out the roots had emerged and were acting like seed leaves, seeking light, while the seed leaves were doing what the roots should have been doing, staying under the soil."

See:

https://www.gardenweb.com/discussions/5 ... -thing#n=1
by henry kuska
Wed Mar 20, 2019 11:48 pm
Forum: Rose Hybridizers Association Forum
Topic: Appropriate DNA barcoding for molecular identification of rosa x damascena trigintipetala Plant growing in Taif region,
Replies: 4
Views: 101

Appropriate DNA barcoding for molecular identification of rosa x damascena trigintipetala Plant growing in Taif region,

" The all Rosa x damascena trigintipetala varieties were clustered in one clade with Rosa persica and Rosa roxburghii. The genetic distance and tree topology specified that the Taif Roses varieties could be originated from Rosa persica and Rosa roxburghii." See: https://www.isisn.org/BR15(4)2018/435...
by henry kuska
Wed Mar 20, 2019 9:56 am
Forum: Rose Hybridizers Association Forum
Topic: Can Rose Rosette Virus do this?
Replies: 1
Views: 87

Re: Can Rose Rosette Virus do this?

Thanks Don, very interesting read.

So far the main aphid distributed rose virus appears to be rose spring dwarf.
https://sites.google.com/site/rosespringdwarf/home