The Orchid Forum, for the UK and Europe (previously known as The UK Orchid Forum) • View topic - Chlorine gas sterilization of seed.
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PostPosted: Sun Jun 28, 2015 11:22 am 
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Hope they have forums in the hereafter
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I live in: United Kingdom (England)
My nearest city or region is: Bristol
My hardiness zone is: UK zone 8b
I don't do much seed sowing , mainly because I think you need to have decent parents to do a cross that is worthwhile making. And of course the 5+ years it takes to see the results is a bit of a downer. I also have no access to laminar flow cabinets to keep contamination at bay so all my work has to be done in the kitchen.

Up until now I have used Hydrogen Peroxide for seed sterilization, which is fiddly and prone to problems, but recently I saw this post (http://www.orchidboard.com/community/propagation/43343-easy-sterilisation-method-seedlings-3.html) on another forum and thought I would have a go using this much simpler method. I didn't think it would work but thought I would give it a go.

Well (apologies to Mr Gove for starting a sentence that way!) that was over four months ago and as far as I can see the method does work. Not as well as laminar flow cabinets but acceptable to kitchen sowers. I sowed four flasks two got contaminated and two are now four months in and showing signs of germination as you can see below.

The cross, for those interested, is Cym. Inasa 'Mukoyama' x Cym. Hoosailum 'New Horizon'





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Cym Inasa x Hoosailum (1).jpg
Cym Inasa x Hoosailum (1).jpg [ 139.02 KiB | Viewed 1079 times ]



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Cym Inasa x Hoosailum (1) (1).jpg
Cym Inasa x Hoosailum (1) (1).jpg [ 134.27 KiB | Viewed 1079 times ]

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PostPosted: Sun Jun 28, 2015 1:18 pm 
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Probably run out of new things to post
Probably run out of new things to post
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Very nice It something I dont do but the, flasks are looking very healthy.
I bow my head to you.


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PostPosted: Fri Sep 25, 2015 4:01 pm 
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Still settling in
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I also saw that way of sterilization on same forum and use only that one since. More or less 90% success but a lot easier when no laminar flow cabinet. I used it for Laelia mandayana and lobata, some crosses of Vandas and hybrid Phalaenopsis. But the most I do is green sowing.

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