Prickles on the hypocotyl?

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Rosarian_Du_Nord
Posts: 6
Joined: Tue Nov 14, 2017 1:17 pm

Prickles on the hypocotyl?

Post: # 72905Post Rosarian_Du_Nord
Fri Apr 16, 2021 11:26 pm

This might be a question that's been answered here before, but I couldn't find it with a search.

One of my new seedlings came up with prickles on the hypocotyl. Is this common? This is the first cross I've made with a parent that has R. spinosissima in its ancestry, so I don't know if it's a common occurrence. It wouldn't surprise me, though, considering the species.

Here's a pic:
20210416 Seedling with prickles TK-rosa-2020-01-01.jpg

roseseek
Posts: 5260
Joined: Sun Dec 11, 2011 6:54 pm
Location: Zone 9b Central California, Sunset Zone 15

Re: Prickles on the hypocotyl?

Post: # 72906Post roseseek
Sat Apr 17, 2021 12:08 am

It's a fairly common occurrence with many types of roses.You will see it with many modern x modern crosses, too.
Kim
California Central Coast
USDA Zone 9b
Sunset Zone 15
Cooler inland coastal valley with strong marine influence

Rosarian_Du_Nord
Posts: 6
Joined: Tue Nov 14, 2017 1:17 pm

Re: Prickles on the hypocotyl?

Post: # 72907Post Rosarian_Du_Nord
Sat Apr 17, 2021 5:59 pm

Thanks Kim!

I thought that would be the case. I'm so surprised that I haven't seen it with all of the R. rugosa seeds that I've germinated. I'm either not paying attention, or I need some specs!

Tony

roseseek
Posts: 5260
Joined: Sun Dec 11, 2011 6:54 pm
Location: Zone 9b Central California, Sunset Zone 15

Re: Prickles on the hypocotyl?

Post: # 72909Post roseseek
Sat Apr 17, 2021 6:19 pm

You're welcome, Tony. They are more pronounced on some compared to others. The most likely reason for your not noticing them before is you're looking for too many things to keep track of. Kind of like Ralph Moore's "how many balls can YOU juggle?" comment when I asked why he hadn't registered a rose he had all ready for introduction, but never got around to moving forward with. Add that to your list of "what to look out for" and you will probably start seeing more of it.
Kim
California Central Coast
USDA Zone 9b
Sunset Zone 15
Cooler inland coastal valley with strong marine influence

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