Search found 1732 matches

by Warren
Sun Jun 16, 2019 9:43 pm
Forum: Rose Hybridizers Association Forum
Topic: Putting honey on stigmas before pollination??
Replies: 12
Views: 600

Re: Putting honey on stigmas before pollination??

Hi David My main concern for this is, honey has hydrophilic properties, this could effect the moisture content within the pollen grain and gamete. When checking for pollen fertility, a 20% sugar solution is used. Maybe if the honey was diluted down to this concentration, results could be very good. ...
by Warren
Fri Apr 26, 2019 5:41 pm
Forum: Rose Hybridizers Association Forum
Topic: R. davidii
Replies: 25
Views: 934

Re: R. davidii

Joe that is not R.davidii it looks all wrong, the blooms should be mid pink with thick petals which last well.
Cheers Warren
by Warren
Sat Jul 21, 2018 12:00 am
Forum: Rose Hybridizers Association Forum
Topic: Self-Incompatibility
Replies: 24
Views: 1436

Re: Self-Incompatibility

you guys complicate these things to much, going into great lengths on definitions and theories. Just simplified it as, it can't pollinate itself due to a hormone block, but a plant of the same species, growing nearby because it is individually different, can pollinate and vise versa. A lot of plants...
by Warren
Tue Jul 10, 2018 8:22 pm
Forum: Rose Hybridizers Association Forum
Topic: Under-utilized species you feel might have merit
Replies: 62
Views: 3937

Re: Under-utilized species you feel might have merit

Thanks Jonathan the R. willmottiae X R forrestiana has been a blessing for me.
Thanks Phil, the Hybrid virginiana's do well when crossed with dioloids, this one is shaded by R tunquinensis and the Hybrid R. davidii's and grows very happy with those conditions.

Cheers Warren
by Warren
Sun Jul 08, 2018 5:58 pm
Forum: Rose Hybridizers Association Forum
Topic: Under-utilized species you feel might have merit
Replies: 62
Views: 3937

Re: Under-utilized species you feel might have merit

Hybrid Rosa virginiana X Princesse du Ballet ( Hybrid Multiflora/ Hybrid Musk). Flowers well with very good fertility, foliage is excellent.
by Warren
Thu Jul 05, 2018 7:37 pm
Forum: Rose Hybridizers Association Forum
Topic: RRV in Rugosa
Replies: 1
Views: 271

RRV in Rugosa

I was wondering if Rugosa roses in the USA have been effected by RRV
cheers Warren
by Warren
Thu Jul 05, 2018 12:58 am
Forum: Rose Hybridizers Association Forum
Topic: Under-utilized species you feel might have merit
Replies: 62
Views: 3937

Re: Under-utilized species you feel might have merit

Here are a couple.
The first is seedling S1 T5 (Rosa tunquinensis X Lorraine Lee) repeat flowering
The second is a species hybrid which has provided me with a good bridging rose (R.willmottiae X R.forrestiana)
by Warren
Thu Jun 28, 2018 10:35 pm
Forum: Rose Hybridizers Association Forum
Topic: yellow rugosas
Replies: 12
Views: 689

Re: yellow rugosas

David it may become fertile if it is grown in higher zone rating of 8 or 9 . see if anyone in these zones would like to take it on.

warren
by Warren
Mon Jun 25, 2018 5:42 pm
Forum: Rose Hybridizers Association Forum
Topic: yellow rugosas
Replies: 12
Views: 689

Re: yellow rugosas

the offspring of Fru Dagmar Hastrup X Elara
by Warren
Fri May 11, 2018 7:18 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1177

Re: Canina Chromosome pairing

"we may ask why Synstyles have not (apparently) participated in the formation of polyploid species."

A very good question, in the last couple of years I have been using roses from Synstylae or its offspring. Even at the level of F3 you can still see some influence of Synstylae stigma's.
by Warren
Sun May 06, 2018 8:18 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1177

Re: Canina Chromosome pairing

thanks every one
by Warren
Thu May 03, 2018 12:57 am
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1177

Re: Canina Chromosome pairing

I thought some of the scholastic wonders on this forum would have been able to help, maybe not LOL
by Warren
Wed May 02, 2018 9:01 pm
Forum: Rose Hybridizers Association Forum
Topic: Canina Chromosome pairing
Replies: 23
Views: 1177

Canina Chromosome pairing

A quick question.

With R. canina varietites and their weird and wonderful chromosome configuration, do the bivalents only have the influence of the plant growth and characteristics or do the univalents have some say in the matter as well.

Cheers Warren
by Warren
Sun Apr 29, 2018 8:01 pm
Forum: Rose Hybridizers Association Forum
Topic: 2018 Germinations
Replies: 27
Views: 3345

Re: 2018 Germinations

Germinated (Sympathie X R.virginiana) X (Fru Dagmar Hastrup X Enfant des Ardenne)

This should be interesting Hybrid kordesii, R.virginiana, Rugosa and Hybrid multiflora combination.
by Warren
Tue Apr 24, 2018 7:22 pm
Forum: Rose Hybridizers Association Forum
Topic: 2018 Germinations
Replies: 27
Views: 3345

Re: 2018 Germinations

Two interesting germinations
Therese Bugnet X (R.willmottiae X R. forrestiana)
[(Wendy X Altissimo) X R.davidii] X [Valkeeri X ( Charles Austin X (Mimas X R.virginiana))]
by Warren
Sat Apr 21, 2018 10:09 pm
Forum: Rose Hybridizers Association Forum
Topic: early culling of species seedlings...
Replies: 11
Views: 783

Re: early culling of species seedlings...

that is the reason I mainly use species as pollinators, they and rugosa's shed their pollen at a very early stage in bloom formation.
by Warren
Fri Apr 20, 2018 11:13 pm
Forum: Rose Hybridizers Association Forum
Topic: Strong Characteristics which are passed down the line
Replies: 5
Views: 486

Re: Strong Characteristics which are passed down the line

Don I don't mind thorns, but I am working on some thornless lines. I did this cross http://www.helpmefind.com/gardening/l.php?l=2.64468 which ended up thornless, a lot of Noisettes are thornless and have good results.
by Warren
Fri Apr 20, 2018 5:55 pm
Forum: Rose Hybridizers Association Forum
Topic: Strong Characteristics which are passed down the line
Replies: 5
Views: 486

Re: Strong Characteristics which are passed down the line

almost all seedlings bred from this line descending from "Maigold" produce these thorns along with that linseed oil fragrance. Xanthus was the only one to have sweet fruity perfume, mind you the thorns were well represented.
http://www.helpmefind.com/gardening/l.php?l=2.70545
by Warren
Fri Apr 20, 2018 12:03 am
Forum: Rose Hybridizers Association Forum
Topic: Strong Characteristics which are passed down the line
Replies: 5
Views: 486

Strong Characteristics which are passed down the line

I have found by using certain cultivars or species , certain characteristics can be strongly represented. This is seedling S37 T64 which is 4 generations away from R.spinosissima. As you can see the thorns have prevailed.