Re: nail clippers and germination

I recall the article by Tomas Tamberg in which he talked about how he 
starts all his seedlings in this way. I used this method on a bunch of 
mostly beardless irises, and stopped doing it because it was too fussy 
and not really necessary for most of them. And, because I couldn't find 
the attachment point on some. But maybe this would be a good way to 
germinate some of the chinensis seeds which have been in the exchange in 
the last few years, and which no one I know of has had much luck in 
germinating. (I have one odaesanensis seedling). I tried and failed to 
find the article--anyone else?
Ken

Diane Whitehead wrote:
>
> I used to have a stereo microscope set up in my elementary school
> classroom. One would be perfect for seed examination. I'll go over
> to a science store to see if I can buy one.
>
> Some drawings of various seeds, before and after cutting, would be
> good to add to the SIGNA article that is being developed. Not
> photographs. Drawings are much better for fine detail.
>
> Diane
>
> On 8-Jan-10, at 9:44 AM, Kenneth Walker wrote:
>
> > At least with aril iris, the end of the embryo is near the point of
> > attachment of the seed to the pod. Of course, with arils that is
> > easy to find because that is where the aril is. I just cut a few
> > seeds of Iris sintenisii and I also found the embryo near the point
> > of attachment, but I don't know if it is universal.
> >
> > A magnifying glass is a good idea. I have a stereo microscope that
> > is very helpful. At least for large seeds, I keep it at the lowest
> > magification: 7.5x. After you cut off the tip of the embryo, the
> > embryo should be visible as round circle in the endosperm, but
> > sometimes there is not much difference in color between the embryo
> > and endosperm.
> >
> > Ken
>
> 



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