Re: Sarracenia seed stratification

From: Davidogray@aol.com
Date: Wed Dec 13 2000 - 00:55:14 PST


Date: Wed, 13 Dec 2000 03:55:14 EST
From: Davidogray@aol.com
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg3577$foo@default>
Subject: Re: Sarracenia seed stratification

Hello List readers,
I recall reading of some seed treatment experiments done a few years ago
which were reported in the Bay Area CP Society's Newsletter. I found the
article by Aaron M. Ellison ( 1998 ) and the website for it is:
http://www.mtholyoke.edu/~aellison/sgerm1.html

Stratification usually involves putting the seed in some damp medium ( I use
a 20:80 mix of peat and white silica sand ),sealing it in a bag, and keeping
it cool for a number of weeks ( the fridge works fine for this ). Most
Sarracenia seed requires at least four weeks of cool temperatures, but
doesn't benefit more if its kept cool for more than six weeks ( except S.
purpurea purpurea, which benefits from 6 weeks or slightly more ).

The term scarification involves notching a heavy-coated seed or treating it
with acid to allow water to penetrate. I have not heard of anyone finding any
advantage to scarifing CP seed.

I hope this is of some use.
Cheers,
David O Gray
San Francisco,
where its 50 deg. F. ( 10 deg C. ), 86 percent relative humidity, and cloudy
with rain expected.



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