Date: Wed, 10 Sep 1997 11:59:01 -0700 (PDT) From: Chris Teichreb <cjt@sfu.ca> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg3481$foo@default> Subject: Re: your mail
Hi all,
>
> I would like to comment on the following that dry ice will thaw quickly and
> probably give too much CO2 (risk of overdose) for a too short time. I read
> that with tomatoes they have used approx 4% CO2 in the air to enhance growth
> by 30%. A easier way to obtain this in a less risky way is by mixing water
> sugar and yeast in a quite large bottle and use a hose to lead the CO2 from
> the fermentation into the terrarium with the plants. This would give CO2 at
> a even rate for a couple of days-one week and then you make a new solution
> because the ethanol produced will inhibit the growth of the yeast.
>
> Anders Espefalt
>
I agree with Anders on this issue. Putting dry ice in a
terrarium will result in too much CO2 being released at one time and will
probably freeze all the plants.
I have not used the yeast fermentation method above on CP's, but
I have used it (as have many others) on aquatic plants with great
success. If you do a search on the web, you should be able to find DIY
resources regarding a 2L pop bottle CO2 'production factory'. Not the
most efficient way, but definitely the cheapest. Look in the archives of
the aquatic-plant mailing group for detailed discussions on CO2 injection
and ways to set-it up.
Regards,
Chris
**********************************
Chris Teichreb
Department of Biological Sciences
Simon Fraser University
Burnaby, B.C.
cjt@sfu.ca
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