Search found 11 matches

by julie777
Fri Mar 27, 2020 9:40 pm
Forum: Rose Hybridizers Association Forum
Topic: silver nanoparticles use in vitro culture
Replies: 5
Views: 163

Re: silver nanoparticles use in vitro culture

Karl, thanks for that information about Charcoal. I have some odd bits of activated charcoal lying around, I might give it a try.

Maybe as you say it is about heat and possibly oxygen, or its surface area, or some sort of catalyst.
by julie777
Fri Mar 27, 2020 9:24 pm
Forum: Rose Hybridizers Association Forum
Topic: silver nanoparticles use in vitro culture
Replies: 5
Views: 163

Re: silver nanoparticles use in vitro culture

I did a rough controlled experiment, tried rooting some cuttings from a rose I grew from seed (though I suppose if I wait until autumn I might have some more seeds). I tried some cuttings in water with a bit of colloidal silver, and one cutting I put in water with a dissolved aspirin tablet. The cut...
by julie777
Fri Mar 27, 2020 8:08 pm
Forum: Rose Hybridizers Association Forum
Topic: Pollen from Canary Bird
Replies: 23
Views: 451

Re: Pollen from Canary Bird

That canary rose is so beautiful.
by julie777
Tue Feb 25, 2020 11:31 am
Forum: Rose Hybridizers Association Forum
Topic: silver nanoparticles use in vitro culture
Replies: 5
Views: 163

Re: silver nanoparticles use in vitro culture

Does a bit of colloidal silver prevent rose cuttings in water from getting fungus?

Does anything else added to the water prevent fungus killing rose cuttings that you root in water?
by julie777
Wed Jan 29, 2020 6:12 am
Forum: Rose Hybridizers Association Forum
Topic: Petite Knock Out Rose - AVOID
Replies: 31
Views: 1578

Re: Petite Knock Out Rose - AVOID

Srdjan, thanks for that information about the EU. I don't understand what CRISPR's are? Are they GMO? Edit: I just tried looking up CRISPR, and I understand that it is slightly different from GMO in that they just re-arrange genes already in that plant as opposed to GMO which introduces alien genes....
by julie777
Sun Jan 19, 2020 8:10 pm
Forum: Rose Hybridizers Association Forum
Topic: Germinating seeds
Replies: 5
Views: 180

Re: Germinating seeds

I wondered if rose seeds require a cold period followed by a warm period to germinate, which happens when you get a cold winter followed by spring. Needing a cold period would stop the seeds from germinating immediately in the late summer and autumn, as the seedlings wouldn't have enough time to gro...
by julie777
Sun Jan 19, 2020 2:19 pm
Forum: Rose Hybridizers Association Forum
Topic: Germinating seeds
Replies: 5
Views: 180

Germinating seeds

Last October I planted a lot of rose seeds outside in pots of compost mixed with perlite. I got them from a variety of hips, some very red, ripe and mushy and some still green but the seeds inside them looked as though they were fully formed. Where I am on the south coast of England, zone 9, we have...
by julie777
Thu Jan 16, 2020 6:21 pm
Forum: Rose Hybridizers Association Forum
Topic: Is every rose seed completely unique?
Replies: 17
Views: 321

Re: Is every rose seed completely unique?

Thanks everyone for wonderful answers. I read through everything and it does seem that the book was using the word "identical" loosely, and not genetically identical as in identical twins. Maybe the phenotype looks extremely similar, most of the time. It takes a lot of energy for a plant to make see...
by julie777
Thu Jan 16, 2020 6:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Is every rose seed completely unique?
Replies: 17
Views: 321

Re: Is every rose seed completely unique?

I do frequently suggest when learning to germinate rose seedlings, you go find all the self set hips from your garden or any other around you that you have access to and raise those. First, it shows you which roses you have access to makes good seed parents. Second, it allows you a supply of seeds ...
by julie777
Wed Jan 15, 2020 6:27 pm
Forum: Rose Hybridizers Association Forum
Topic: Is every rose seed completely unique?
Replies: 17
Views: 321

Re: Is every rose seed completely unique?

Climate might affect the seed by epigenetics, which is when acquired characteristics are passed on to future generations by DNA methylation. I was just reading somebody's post about that, interesting. Lamarck predicted epigenetics, and Darwin supported his theory, but it was only recently taken seri...
by julie777
Wed Jan 15, 2020 4:42 pm
Forum: Rose Hybridizers Association Forum
Topic: Is every rose seed completely unique?
Replies: 17
Views: 321

Is every rose seed completely unique?

I am a beginner, new to this forum, and live on the south coast of England. I have been reading a lot of the threads on here with great interest. I did study biology to A level, but understanding the science will take a huge amount of effort for me. One of the ideas people here seem to say a lot is ...