Harvey,
Orchid seeds when released from the capsule have a moisture content too high
for long term storage. Even when stored
at a temperature of 5C, viability rapidly decreases.
The optimum seed moisture content for long term storage, maintaining viability,
is 5 to 6 %, obtained through a
Hi all
sorry for my long absence (combo of work and family commitments) - then
again, I am sure you haven't missed me!
Anyway, with regard to the articles:
From: Alan W Stephenson [EMAIL PROTECTED]
Subject: [OGD] Conservation
Alan S - well done with broadcasting those decisions in Aus about
Wagner Vendrame and coworkers at the University of Florida in Homestead
http://trec.ifas.ufl.edu/vendrame/index.htm
are doing research on cryopreservation of orchid seed and pollen at liquid
nitrogen temperatures. They have recently published some papers on these
topics:
Vendrame, W.A., V.S.
I would approach the use of Kocide with caution since many epiphytes are
especially sensitive to copper compounds - especially at particular pH in
solution. Latourea and other Dendrobiums are notorious for showing this and I
have seen mature collections of them die quickly from this type of
Don Daye of Warner Robins...
Orchids have been part of Daye's life for the past 30-plus years...
growing them in the greenhouse in his backyard...
how many orchids... a good guess would be several hundred.
...
Daye's advice on growing orchids include regular fertilizer, water and
humidity...
In a message dated 3/25/08 3:00:33 AM Pacific Standard Time,
[EMAIL PROTECTED] writes:
Multicrop makes Kocide Blue. There is also a Blue Xtra. I'm not a big fan
of
Kocide so I've never bothered to find out what the difference is. Yates
Fungus Fighter Copper Fungicide is also Copper
I will be out of the office starting 2008/03/25 and will not return until
2008/03/28.
Any urgent business queries should be forwarded to the Maryanne Donachie at
Professional Practice Group, Ernst and Young, Johannesburg. (+27-11-772
3034).
Ernst Young has achieved an AA rating from
Harvey Brenneise [EMAIL PROTECTED] queried thusly:
Does anyone out there know of any work done with orchid seed viability,
particularly long-term and/or of seeds stored at very low temps?
There are a few papers out there; they're all referenced in my first
book, and I can fetch those up if
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