Re: HYB: stimulating germination with gibberellins

Neil,
I started a discussion a while back re: GA-3, an experiment for me. Jim R.
responded with some additional thoughts, as did others. It's a little hard
to find iris-specific info on GA-3 and iris, but:
http://www.umaine.edu/maineplants/result.htm
has an interesting note with use of versicolor; tons of othe sites regarding
its action on other plants.
I'm assuming your source was www.jlhudsonseeds.net , which is where I got my
supply. He advertises in the NARGS bulletin. I've got a mini-experiment
underway with it with virginica seeds. I'll post to the group when there are
results, or lack thereof!

Jim Gibbons
NC Coast Zone 8A and sandy...
gibbman6@mchsi.com





----- Original Message -----
From: "Neil A Mogensen" <neilm@charter.net>
To: "Iris-talk" <iris@hort.net>
Sent: Friday, February 13, 2004 6:29 AM
Subject: [iris] HYB: stimulating germination with gibberellins


> Has anyone on the list used Gibberellic acid or Gibberellins to increase
> germination of iris seeds?
>
> The hormone has a lot of use in some plants, as its primary function is
cell
> extension.  Gibberellins tend to build up or increase in concentration in
> seeds through leaching, stratification and chilling.  Apparently the
increase
> in the hormone in the seed is why these strategies do work.
>
> A search on hort-net as a whole produces quite a few articles in the past
five
> years, but none specific to irises of any type.  Has any work been done on
> dosage level or procedures been worked out for any kinds of irises that
any on
> the list knows about?
>
> Jim Rohrer called my attention to a source that sells the hormone for this
> purpose and provides information as a starting point for anyone who wants
to
> try the product.
>
> Neil Mogensen    Region 4,  zone cold side of  7,  acid clay soils, old
mixed
> broadleaf and coniferous forest lands,  at elev. 2300'  western NC
>
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