Re: germinating koreana?


>I've heard that some irises (such as cristata) require 2 winters to
>germinate.  I would venture to say that if your koreana seeds do not
>germinate this spring, they're probably not ever going to.  (This would be
>their 3rd winter.)
>

I. cristata - most floriferous seedling SIGNA 02, sown last March is 
now starting to germinate.  It did not get any special treatment, 
just outside in the unheated greenhouse.  I will treat the 
odaesanensis seed the same.

I dumped out and examined all the SIGNA 01 seed that hasn't 
germinated yet, and found that in some seedlots, all seeds had rotted 
(not from excessive wet) including koreana ex plants col in Korea, 
chrysographes col in Yunnan, Pacific Dark Eyes, and cycloglossa. The 
squishable seedcases were still there, so it was not that something 
had eaten the seeds.

I japonica var pallescens col in Sichuan - 5 of the 9 seeds received 
were rotten. There's still hope for the 4 remaining ones.

Of the seedlots that have ungerminated seed, I nipped half the seeds 
lightly with nail clippers (the treatment I give to all legume family 
seed, like Lupinus) and sowed clipped/unclipped lots separately.

-- 
Diane Whitehead  Victoria, British Columbia, Canada
maritime zone 8
cool mediterranean climate (dry summer, rainy winter - 68 cm annually)
sandy soil

 

Yahoo! Groups Links

To visit your group on the web, go to:
 http://groups.yahoo.com/group/iris-species/

To unsubscribe from this group, send an email to:
 iris-species-unsubscribe@yahoogroups.com

Your use of Yahoo! Groups is subject to:
 http://docs.yahoo.com/info/terms/ 




Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index