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InvisibleBacchus
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Decomposing longitudinal stripe. Mushy cap.
    #6751083 - 04/05/07 03:20 PM (17 years, 9 months ago)

I honestly didn't think I'd ever be posting a question in this forum, but one mushroom caught my attention... I've been experimenting with some small casings and playing with different parameters, and this tray was a shallow layer of WBS with a thin MGMC casing. It has been neglected, because I only fruited this isolate because I had extra spawn. The crappy pinset is actually much better than I was expecting.

Anyway, I know that tan stripes down the length of the stipe is a sign of high humidity, but this casing is actually a little too dry in my opinion. One fruitbody has a stripe of decomposition and mushy pits on the cap.

I picked the mushroom in question because it just doesn't look right. I'm not planning on eating it, but I'm still curious if anyone can identify the factors that caused this defect.

I have several more pictures if you'd like to see them.



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Edited by Bacchus (04/05/07 03:55 PM)

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InvisibleCureCat
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Re: Decomposing longitudinal stripe. Mushy cap. [Re: Bacchus]
    #6751972 - 04/05/07 07:37 PM (17 years, 9 months ago)

Hmmm.... might be Verticillium "Dry Bubble", or Psedomonas "Bacterial Blotch" contamination.

Do you think it is possible that water may be dripping onto that one mushroom from the lid of the FC?


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InvisibleBacchus
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Re: Decomposing longitudinal stripe. Mushy cap. [Re: CureCat]
    #6752143 - 04/05/07 08:27 PM (17 years, 9 months ago)

I suppose it's possible, however unlikely. My setup is a three tier mini greenhouse with a coolmist placed inside. The humidifier is on a timer and fresh, outside air is routed to the intake.

The plastic on my greenhouse isn't stretched as tightly as I'd like... Of course, the topography of the ceiling is quite rough. Surely, I would have seen similar defects in some of my very dense flushes? Two of the other experiments in the FC with this tray had very, very dense pinsets with wall-to-wall flushes.

Actually, now that I'm looking through some pictures that I took last week, I'm starting to notice new things on my other trays. Maybe I should spend some time fine tuning my greenhouse.

Somehow, I managed to miss these totally obvious signs, because I very busy with work last week. Could it also have been caused by my coolmist timing? This is the first set of experiments that I've grown in my greenhouse, and I didn't have the coolmist timing optimized yet. There was a period of about a week, where it was soaking my casings.



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OfflineRogerRabbitM
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Re: Decomposing longitudinal stripe. Mushy cap. [Re: Bacchus]
    #6752385 - 04/05/07 09:20 PM (17 years, 9 months ago)

It looks like it got physically damaged as it emerged from the casing soil. Look where it sprang from and I'll bet you find a twig or something. It looks like the head and stem scraped against whatever it was as they grew.
RR


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