"troy" wrote in message
...
On 2010-12-14, Peter Jason wrote:
I use glass petri dishes which I fill with sifted soil.
This assembly is put into the microwave and zapped for 2
min
on high to kill spores, other seeds, and bugs.

When cool I moisten the result and insert the seeds.

Is this OK? When I put the lid on the petri dish to
retard
moisture loss, and make them stackable, should I worry
about
oxygen lockout?

I Imagine your not leaving these dishes for extended
amounts of time sealed, in which case this seems
reasonable. It would be surprising if the newly germinated
plants were to deplete their oxygen supplies in the span
of = 24 hrs between inspections. What sort of "exotic"
seeds are you germinating?

At the moment I'm trying to grow agapanthus seeds.