Daylilies forum→Cold Stratification

Page 3 of 3 • 1 2 3
Views: 1033, Replies: 43 » Jump to the end
Name: Bob
Northeast Florida (Zone 9a)
Image
bobjax
Jul 10, 2021 9:20 PM CST
sooby said:

In Dr. Griesbach's study,


Hi Sue,
I think you are a member of the Facebook Daylily Hybridizers Nook. There is currently a survey there that shows what method people are using.
Name: Sue
Ontario, Canada (Zone 4b)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Image
sooby
Jul 11, 2021 4:44 AM CST
bobjax said:

Hi Sue,
I think you are a member of the Facebook Daylily Hybridizers Nook. There is currently a survey there that shows what method people are using.


No I don't belong to that FB group, the few I do follow are enough and I really don't like the "nesting" format on FB. I know that sometimes people make starting daylily seeds a lot more mysterious and complicated than it needs to be and quite often I think the seeds germinate despite rather than because of that.

Name: Sue
Ontario, Canada (Zone 4b)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Image
sooby
Jul 12, 2021 5:37 AM CST
bobjax said:

Hi Sue,
I think you are a member of the Facebook Daylily Hybridizers Nook. There is currently a survey there that shows what method people are using.


I had a look at the survey since the Hybridizer's Nook is a public group viewable by non-members and I'm not sure I see what the goal is.

It appears to be asking people what is the first thing they do after they harvest and dry their seeds, but does not address what germination rate they get over what timeframe afterwards, which is the whole point of stratification.

The survey options relate to after harvesting and drying, but what is drying? A few days, a few weeks? That would make a difference. Then two of the options don't seem to fit, why would someone dry seeds and then plant immediately, or stratify immediately, two of the four options? Also what about people whose first step is to dry and store in the fridge, then rehydrate to stratify?

I have to agree with some of the FB comments, there seems to be confusion between stratification and storage in a fridge. Stratification is not "wet storage" (actually should not be "wet" at all, or prolonged, just damp chilling for about 4 weeks). Dry storage (fridge) is just to hold the seeds over so they stay viable for longer periods until people are ready to start or stratify them, it's not intended to break seed dormancy, and it doesn't (disregarding for the moment that seed dormancies can wear off during dry storage).

Edited to clarify that in the last paragraph I was referring to refrigeration.
[Last edited by sooby - Jul 12, 2021 6:48 AM (+)]
Give a thumbs up | Quote | Post #2550666 (3)
Name: Arturo Tarak
Bariloche,Rio Negro, Argentina (Zone 8a)
Roses Dahlias Irises Plant Lover: Loves 'em all!
hampartsum
Jul 12, 2021 10:49 AM CST
If a seed has in its genetic history a need to dry up first, and then get wet again with fall rains ( which would occurr naturally in a Mediterranean type climate like mine here in the S.Hemisphere), then it makes sense to dry out seeds of daylilies and rehydrate them later. By now, like it happens with so many highly modified cultivars in roses, irises, true lilies etc. the genetic complexity is enourmous. So it is very difficult to tell apart which option will hold true universally. With such complex backgrounds, extrapolation to universal solutions is too risky. That doesn't mean that a systematic experiment shouldn't be conducted. When it comes around cultivars I would solely accept the validity of results if restricted to the chosen cultivars. The remainder ( which will be thousands) will still remain in the realm of inferred speculation.

Arturo

Page 3 of 3 • 1 2 3

« Garden.org Homepage
« Back to the top
« Forums List
« Daylilies forum
You must first create a username and login before you can reply to this thread.

Member Login:

[ Join now ]

Today's site banner is by EscondidoCal and is called "Echinopsis 'Los Angeles'"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.