[Arabidopsis] growth problem: terminal cotyledon stage?
riggs at utsc.utoronto.ca
Tue May 30 10:07:10 EST 2006
We have a plant growth problem that is somewhat baffling and I'm writing
to ask if you have some advice or experience that you can share.
Seedlings germinate nicely on Premier Pro-mix PGX (which we have always
used), but remain at the cotyledon stage for weeks; they then either die
(about 90%), make flowers when 1cm tall, or 'come out of it' and produce
nice, normal plants. There's no correlation with genotype: a variety of
mutants as well as several 'wildtype' ecotypes exhibit this. I suspect
the potting medium and have a different type of soil, but the jury's
still out on that aspect. Could water source be a problem (ie, rusty
pipes)? Have any of you any experience with watering with distilled
water. Thanks for your time.
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