Search found 991 matches

by henry kuska
Fri Nov 15, 2019 11:48 am
Forum: Rose Hybridizers Association Forum
Topic: pirate bug behavior -mites - thrips
Replies: 1
Views: 42

pirate bug behavior -mites - thrips

"The fower thrips Frankliniella insularis (Franklin) (Thysanoptera: Thripidae) and the two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) are generalist herbivores that cause signifcant damage to rose crops in Brazil (Carvalho et al. 2013). The minute pirate bug Orius insidiosus...
by henry kuska
Tue Nov 12, 2019 1:24 pm
Forum: Rose Hybridizers Association Forum
Topic: New rose virus
Replies: 0
Views: 24

New rose virus

Title: "Complete genome sequence of rose virus A, the first carlavirus identified in rose."

See:

https://www.ncbi.nlm.nih.gov/pubmed/31701224

or

https://link.springer.com/article/10.10 ... 19-04460-1
by henry kuska
Sat Nov 09, 2019 11:22 am
Forum: Rose Hybridizers Association Forum
Topic: Response of Roses (Rosa hybrida L. ‘Herbert Stevens’) to Foliar Application of Polyamines on Root Development, Flowering
Replies: 0
Views: 18

Response of Roses (Rosa hybrida L. ‘Herbert Stevens’) to Foliar Application of Polyamines on Root Development, Flowering

Title: "Response of Roses (Rosa hybrida L. ‘Herbert Stevens’) to Foliar Application of Polyamines on Root Development, Flowering,
Photosynthetic Pigments, Antioxidant Enzymes Activity and NPK"

See:

https://www.nature.com/articles/s41598-019-52547-1.pdf
by henry kuska
Wed Oct 23, 2019 10:59 am
Forum: Rose Hybridizers Association Forum
Topic: Dissecting the Genome-Wide Evolution and Function of R2R3-MYB Transcription Factor Family in Rosa chinensis
Replies: 0
Views: 396

Dissecting the Genome-Wide Evolution and Function of R2R3-MYB Transcription Factor Family in Rosa chinensis

"Our results indicated that R2R3-MYBs have multiple synteny clusters. The RcMYB114a gene was included in the Rosaceae-specific Cluster 54, with independent evolutionary patterns. On the basis of these results and an analysis of RcMYB114a-overexpressing tobacco leaf samples, we predicted that RcMYB11...
by henry kuska
Fri Oct 11, 2019 4:53 pm
Forum: Rose Hybridizers Association Forum
Topic: Newbie question
Replies: 12
Views: 614

Re: Newbie question

When you ask about seed germination experience from other hybridizers, I recommend that you consider the type of rose seed that the hybridizer uses. (Common hybrid tea seed behavior may be very different than near species seeds.)
by henry kuska
Fri Oct 11, 2019 4:47 pm
Forum: Rose Hybridizers Association Forum
Topic: Would this work with roses?
Replies: 1
Views: 174

Re: Would this work with roses?

Thank you. Something definitely worth trying.
by henry kuska
Wed Oct 09, 2019 4:07 pm
Forum: Rose Hybridizers Association Forum
Topic: challenges of breeding rose rosette resistent
Replies: 0
Views: 348

challenges of breeding rose rosette resistent

Normally it is hard to get more than the abstract free from some journals. Here is a full paper which should be of interest to rose hybridizers:

https://ucanr.edu/sites/ncpnrose/files/292224.pdf
by henry kuska
Wed Oct 09, 2019 2:01 pm
Forum: Rose Hybridizers Association Forum
Topic: Late breaking California rose rosette virus proposed action
Replies: 3
Views: 222

Re: Late breaking California rose rosette virus proposed action

It appears to me that they are trying, but viruses are a very complicated part of Nature. Progress may be slow.
by henry kuska
Fri Oct 04, 2019 9:20 pm
Forum: Rose Hybridizers Association Forum
Topic: Rose replant disease?
Replies: 13
Views: 478

Re: Rose replant disease?

This is what Dr. Rankin has written: http://www.tenarky.org/Merit_Articles/2009/DrRankinRoseReplantDiseaseNRLMay2009.pdf ---------------------------------------------------- This appeared in a local rose society newsletter that I have great respect for: http://www.marinrose.org/replantdisease.html -...
by henry kuska
Fri Oct 04, 2019 4:46 pm
Forum: Rose Hybridizers Association Forum
Topic: convenient source for a number of pictures of virus infected rose leaves,
Replies: 0
Views: 324

convenient source for a number of pictures of virus infected rose leaves,

Since this includes a number of pictures of infected leaves, this looks like (to me) something that diserves increased publicity.

I do have one question - why is rose spring dwarf virus (RsDaV) not mentioned?

See:

https://ucanr.edu/sites/ncpnrose/files/285819.pdf
by henry kuska
Fri Oct 04, 2019 12:31 am
Forum: Rose Hybridizers Association Forum
Topic: Rose replant disease?
Replies: 13
Views: 478

Re: Rose replant disease?

I used to add Mycorrhizae fungi to the fresh planting soil. (I am no longer active.)