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OfflineFerather
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Re: Coir as a nutrient source [Re: Pastywhyte]
    #25589453 - 11/03/18 04:08 PM (6 years, 2 months ago)

Ok, I don't mind, I'll pop my results in my Cub log.

My data is in relation to the carbon composition of coir: cellulose, hemicellulose and lignin (phenols).
I am separating the carbon sources and testing them independently, ignore the wood.

Wood has the same carbon composition: cellulose, hemicellulose and lignin.


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OfflineSolipsis
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Re: Coir as a nutrient source [Re: Ferather]
    #25589706 - 11/03/18 05:49 PM (6 years, 2 months ago)

I am skeptical about the problem with coir being the nutritional value. I thought it contained some chemicals which provide it with a resistance, so basically antifungals? (IIRC my colleage said this) If so, obviously not in such a way that it would totally piss of myc to not even be good as a casing ingredient or so water-soluble that it would leech into the myc and fuck it.

It's lignocelluloid material yea. So for wood decomposers it should be a substrate. Things slowing down growth could e.g. maybe be too high density or cross-linking of polymer chains in a way that makes decomposition hard, or active antifungals.. Just like there are types of trees/wood which are naturally resistant to fungal decay and I really don't think it is all because of resins.

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OfflineFerather
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Re: Coir as a nutrient source [Re: Solipsis]
    #25589737 - 11/03/18 06:05 PM (6 years, 2 months ago)

Technically speaking coco coir is better than wood for lignicolous mycelium, it holds more water, and is 5x richer in nitrogen.
Coir does have a high sodium and potassium content, and must be treated prior to use. Trich eats coir just fine.

The water extractives and phenolic content in black tea inhibits growth, enough that it slows down.
Wood, and coir should contain no starch and simple sugar, it's these two reasons.

If you enrich wood or coir with starch, all sorts of things will germinate.


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Growing mushrooms, general guide and information (Ferather's Journal), https://ibb.co/rG3rML2

https://www.shroomery.org/forums/showflat.php/Number/27857366#27857366

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Edited by Ferather (11/03/18 06:14 PM)

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Invisiblemary fairchild
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Re: Coir as a nutrient source [Re: Pastywhyte] * 1
    #25592053 - 11/04/18 04:44 PM (6 years, 2 months ago)

Quote:

Pastywhyte said:
Quote:

Ferather said:
Oh, ok, based on the thread name and original post, and several posts after, I guessed the question was generic.

Quote:

mary fairchild said:
Here's a simple question,

Has it been PROVEN that coco coir provides ANY nutritional value as a substrate component for cubensis culture?
Is there even strong evidence to the above?

In other words, is coir just a media to hold the grain, flour, bran etc. that are used as food sources?



I guess that pans came later?




You’re correct, the pans didn’t come until later. However it’s not about wood or other media. It’s about coir. If you have a lot of data on cubes on other media I think that merits its own thread.




Yes, I posed the question of coir as a nutrient source for cubes because I supposed that quite a bit more work has been done with cubes than Pans.
My interest is in Pans. I'm going on the assumption that since both cubes and Pans are dung eaters that for coir at least, what holds for cubes can be extended to Pans.

Thanks much to Ferather for his curiosity driven experiments!


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OfflineFerather
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Re: Coir as a nutrient source [Re: mary fairchild]
    #25592065 - 11/04/18 04:50 PM (6 years, 2 months ago)

No problem, sorry for the confusion, good luck then I do not have pans.


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Growing mushrooms, general guide and information (Ferather's Journal), https://ibb.co/rG3rML2

https://www.shroomery.org/forums/showflat.php/Number/27857366#27857366

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