Thanks.
I favour peat moss so can do a 50/50 perlite and peat moss. I have had
excellent results with peat moss using damp peat with bearded iris
seeds and with daylilly seeds in chill environment
I don't know if tectorum need vernalization as the pots bloomed in
window sill in basement. Although rooms were a bit cooler then rest of
house, not at typical vernalization temperatures.
Anyone tell me about tectorum seeds and/or bucharica seeds as to
geermination stratification needs?
Since stratification wouldn't likely hurt seeds and may help. this is
my option of choice at this time.
Chuck Chapman
-----Original Message-----
From: gndavis@peoplepc.com
To: iris-species@yahoogroups.com
Sent: Sun, Sep 6, 2009 11:42 am
Subject: Re: [iris-species] Re: Tectorum X bucharica cross / Thoughts
On Germinating
Chuck
Embryo culture in sterile conditions
?
Second option for me would be germination
in semi-sterile conditions with perlite / spagnum moss, as these
mediums are much lower in pathogen loads than soil based mixes. (
50/50 mix perlite/spagnum ) Further, they can be initially sterilized,
with
appropriate technique. While, technically not a true "sterile"
production
system, the pathogen loads are reduced to low levels. The a
ddition of
50% spagnum is mildy stimulatory ( reference Dr. Galinat / personal
communication ). The advantage with these type mediums is that they
allow weak seedlings from inter-specific crosses a significantly
longer window to germinate and establish before dangerous pathogens
build up.
You can extend this favorable seed growing
environment even further by covering your germinating container with
Saran or
similar wrap over the top with tiny perforation holes in it. If
you want to get really fancy use a heavy wrap and put bandaids several
places on
the wrap. Then put a drop of bleach on the bandaid. Insert a sharp
needle
through the bandaid to give each a tiny air hole port. Leave the
bandaids on. Periodically put a tiny drop of bleach on the bandaid to
keep it
clean. Every time you water, put a drop of bleach on the bandaid, then
insert distilled water with a syringe/needle into the closed
environment. If you use this modified system, never take the Saran
off
as it is the bug barrier. HOWEVER, monitor very closely and
never over
water - less is better. Of course it can't be too dry. Might also
consider a light fungicide on the seed as
additional protection. Don't use a tiny container as the smaller the
container
the more intense the management of watering and controlling the
environment
becomes.
I have used this basic system
with several
different modifications for many types of inter-specific crosses. Its a
little
too intense for general use, but good when you have something really
valuable
you need to help along. Of course the seed has to have the genetic
capacity
to germinate and not all inter-specifics do - as you will
know.
Do not know if this type cross would
require cold stratification to germinate - perhaps others can give some
support based on the habits of the primary species. You can place your
sealed
container in appropriate environments for stratification needs.
Good luck.
Hope this helps.
irisman646
----- Original Message -----
From:
irischapman@aim.com
To: iris-species@yahoogroups.com
;
i*@hort.net
Sent: Saturday, September 05, 2009 3:37
PM
Subject: [iris-species] Re: Tectorum X
bucharica cross
The seed pod from this cross finally ripened. It took a lot longer then
almost all of the crosses made this season, and it was the first one
made. Only two seeds in the pod. One is a fair bit smaller hen the
other.
What I need is some ideas of what germination methods I
should use for
this cross. I have germinated some tectorm seeds before
using
standard TB methods, but a20very limited germination. As these seeds
are
rather special I want to give them the best chance at doing
something.
Chuck Chapman
