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North Spore Shop: Bulk Substrate, Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies

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OfflineSev
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Registered: 06/06/03
Posts: 1,426
Loc: NY
Last seen: 9 years, 3 months
Re: PF Cake jar sizes - HELP! [Re: sic8]
    #2832254 - 06/27/04 12:43 AM (19 years, 7 months ago)

That logic might work -- if we were dealing with bacteria in an aerated liquid nutritive broth. However, when you deal with fungi and real-world solid substrates, you're talking about something completely different.

My growth starts off pretty slow, ramps up geometrically, and then hits a plateau. Remember, you're generally dealing with what can be thought of as an interface plane -- the line of mycelial growth. This plane, under proper conditions, generally advances at a pretty set rate, no matter how large the mycelial mat behind it is, once it reaches a certain size. From what I've seen, about one centimeter of advancement per day seems pretty average for strong mycelial growth. You get the interface forging forward in a hemispherical mass from the innoculation points. The growth rate actually -is- geometric, since the interaface area keeps increasing, but it's certainly not n^2 growth.

The reason that pint jars take twice as long is simply because there's twice as much volume to colonize.

This is also actually the reason that you can get grain jars to colonize so damned fast. Once you get a good amount of colonization, you shake the thing up, and then you have a few hundred points of innoculation spread throughout the entire jar, with their interfaces advancing in a spherical manner from each innoculated grain. In this case, you actually -are- getting growth comparable to ideal bacterial growth, because you've fragmented the interface and increased its effective size.


--------------------
"Do we want the stars? We can have them. Can we borrow cups of fire from the sun? We can and must and light the world." --"On the Shoulders of Giants", Ray Bradbury

All of my posts are full of fiction and blatant lies.


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North Spore Shop: Bulk Substrate, Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies


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