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Offlinerungi
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Registered: 07/11/01
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controlling king oyster cap sizes
    #7428684 - 09/19/07 03:19 PM (16 years, 6 months ago)

How do you control the cap size or Pleurotus eryngii? Some commercial king oysters have very short gills and small caps with very long stipes. Some china imports have almost no cap they market the stipe. Also how do you stop primordia develpoment on sides of bottle containers? I have noticed that commecial bottle cultivator use glass and transparent plastic bottles, yet the fruits develop at the top on the surface mycelium.

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OfflineRogerRabbitM
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Re: controlling king oyster cap sizes [Re: rungi]
    #7428781 - 09/19/07 03:44 PM (16 years, 6 months ago)

The fruits develop where they're exposed to fresh air. If you want to control cap development, allow the CO2 concentration to climb a bit.
RR


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OfflineOysterKing
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Re: controlling king oyster cap sizes [Re: RogerRabbit]
    #20538098 - 09/08/14 02:16 PM (9 years, 6 months ago)

I know this is necromancy, but I had a suspicion CO2 build up was the reason my latest King Oysters were looking only partially endowed.

taken 29 Aug :

taken 08 Sept :

Temps are fluctuating between 5 deg C at night and up to 20-22 deg C in the daytime. We are rebuilding our grow room, so we're forced to improvise/experiment. These 1kg straw cakes are sitting inside a plastic basket which is inside a length of plastic tubing with its ends folded under the basket. We've poked lots of holes into the plastic along the sides of the basket and covered these with Micro-Pore tape. Humidity is maintained by spritzing the plastic (very) occasionally.

We have been airing the basket, but flies/bugs have been a problem on previous grows so we are quite miserly with the 'airing time' our convicts get.

Hopefully once our grow room is up the bugs will die of hunger and our Kings can breathe free!


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:grin:

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OfflineAramush
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Registered: 07/19/13
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Re: controlling king oyster cap sizes [Re: OysterKing]
    #20538139 - 09/08/14 02:25 PM (9 years, 6 months ago)

The way the chinese do it is they use bags with the ring and cotton plug method - open side of bag is pushed through a plastic ring then folded back over ring and plugged with cotton wool.

Anyways, the just take the ring off so the excess plastic is still sticking out off the top of the bag, this creates a high co2 environment, the log pins, mushrooms stretch towards the fresh air, once stretched enough bag is folded/cut back.

Probably the best way of increasing co2 without significantly increasing the chances of mould.

Good luck.

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OfflineForresterM
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Re: controlling king oyster cap sizes [Re: OysterKing]
    #20540870 - 09/08/14 10:50 PM (9 years, 6 months ago)

Oysterking, what are you doing for light?  Those look more deprived of light than air to me, but I could be wrong...


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Have some medicinal mushrooms and want to get the most out of them?  Try this double extraction method.

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OfflineOysterKing
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Re: controlling king oyster cap sizes [Re: Forrester]
    #20541224 - 09/09/14 12:25 AM (9 years, 6 months ago)

You have me there Forrester! What you say makes sense...

The basket sits atop a desk, and it is about 2 metres away from a 1m X 1m window. So the basket itself kinda blocks the light being so high up. To take those photos I had to move the basket closer to the window to actually get a shot(my cam doesn't have a flash). I doubt they get the lighting they deserve...:sad:

What makes you say its the light though? What indicators should I look for?


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:grin:

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OfflineForresterM
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Re: controlling king oyster cap sizes [Re: OysterKing]
    #20542268 - 09/09/14 09:17 AM (9 years, 6 months ago)

There's no color in the caps.  That's what mine usually look like when I haven't noticed that they've pinned in the bag (which usually sits on a shelf in a darker part of the room).  Once I expose them to light and air for fruiting the caps will develop color and get bigger.  It's probably not too late for yours, just give 'em some more light and they should look more normal!


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Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here.
-------------------

Have some medicinal mushrooms and want to get the most out of them?  Try this double extraction method.

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OfflineOysterKing
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Re: controlling king oyster cap sizes [Re: Forrester]
    #20542892 - 09/09/14 12:06 PM (9 years, 6 months ago)

I've built a temporary shady spot in the garden and the Oyster cakes have been sitting there since about 10am this morning. Much, much better quality light out there. I'll have a look again tomorrow morning to see what progress has been made.

Thanks Forrester!


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:grin:

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OfflineForresterM
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Re: controlling king oyster cap sizes [Re: OysterKing]
    #20545392 - 09/09/14 10:21 PM (9 years, 6 months ago)

I bet they'll look nice grown outdoors, I've never done it myself but with unlimited FAE, the caps will look quite different than the ones you buy in the store!


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Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here.
-------------------

Have some medicinal mushrooms and want to get the most out of them?  Try this double extraction method.

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OfflineOysterKing
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Re: controlling king oyster cap sizes [Re: Forrester]
    #20577885 - 09/17/14 12:02 AM (9 years, 6 months ago)

Hi

Just thought I'd post a little update. The pins are forming nice caps now they have more air and light.






This bad boy doesnt have the best cap formation, but a good weight at harvest i reckon. Doesn't the Asian market appreciate a thick stemmed small capped Oyster like this? The last kings i grew had more distinction between cap and stipe.

The other cakes pins are growing furiously now they are accustomed to their new light and air. It seems some 'old' mushrooms which started forming in the poor conditions have 're-pinned' to form new mushrooms with regular caps on the old growths! I'll get a nice pic to illustrate...

Its averaging a high of 22 deg C, and they are still in shade all day. Spritzing maintains humidity, and airflow is thru a massive polyfil tube.


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:grin:

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OfflineForresterM
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Re: controlling king oyster cap sizes [Re: OysterKing]
    #20581637 - 09/17/14 10:02 PM (9 years, 6 months ago)

Yeah that big one looks just like ones I've gotten from the store, nothing wrong with growing 'em that way! 
The stems are just as good as the caps so nobody really bothers trying to provide all the air to get the caps bigger...  Also, you can imagine they'd hold up better in shipping when there's no fragile cap parts to break off and make the mushrooms look like shit.


--------------------
Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here.
-------------------

Have some medicinal mushrooms and want to get the most out of them?  Try this double extraction method.

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OfflineDjchrist
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Re: controlling king oyster cap sizes [Re: Forrester]
    #20582140 - 09/18/14 12:16 AM (9 years, 6 months ago)

Personally I think they look more appealing to the eye with nice big caps but like you said same story :smile:

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OfflineOysterKing
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Re: controlling king oyster cap sizes [Re: Djchrist]
    #20592973 - 09/20/14 02:19 PM (9 years, 6 months ago)

Hi All

Check how the new pins have started on the old blind mushrooms:



Timeline for this batch so far is as follows:

29 Aug - bulging mycelium and pinning noticed (ambient temps max 19C)
8 Sep  - started worrying about slow growth and abnormal cap development -still indoors and choking
9 Sep - improved light quality and airflow/CO2 to cakes (thanks to RR & Forrester & The Shroomery!), moved outside. temps around 22C
14/15/16 Sep - new pins appear (large mushie above harvested alone 14th)

Thing is, the majority of the pins that have appeared havent matured yet(except for the dildo above). For example, this cake(and the rest)

(14/9)(16/9)

look much the same today the 20th(temps got to 26/27 today). Can anyone shed some light on this? Is it normal? Should I abort? :confused:


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:grin:

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OfflineNuggernaut
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Re: controlling king oyster cap sizes [Re: rungi]
    #20593183 - 09/20/14 03:18 PM (9 years, 6 months ago)

Interesting!

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Offlinecmspice
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Re: controlling king oyster cap sizes [Re: Nuggernaut]
    #20593656 - 09/20/14 05:10 PM (9 years, 6 months ago)

I bought the thick stemmed one like in your pic at a korean market once. They looked kind of sad but they flavor/texture was much better than the hokto ones with the larger caps. Plus they were like 5 times the size.

Still not as good as the 'king trumpets' I got from the mushroom guy at the West Philly farmer's market in Clark Park. Damn those were good.

And that couldn't compare to the single king oyster mushroom about the size of my thumb that I got from my supplemented sawdust block lol. Too bad there was only one... And it was the size of my thumb.


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Offlinechefinainteasy
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Re: controlling king oyster cap sizes [Re: cmspice]
    #20594220 - 09/20/14 07:14 PM (9 years, 6 months ago)

I know I'm in favor of this as it is, but try casing a bag.


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Check out my youtube videos. the Mushrooms Naturally series by chefinainteasy

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OfflineOysterKing
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Re: controlling king oyster cap sizes [Re: chefinainteasy]
    #20596713 - 09/21/14 11:27 AM (9 years, 6 months ago)

I've literally made your pic my desktop background Chef, that is a beautiful cluster(wiping drool off a green jowl).

I haven't done any casing work before, but I'll do some searches and give it a test. If I may be forward, do you(or anyone for that matter) have any suggestions/handy links concerning that?


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:grin:

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Offlinechefinainteasy
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Re: controlling king oyster cap sizes [Re: OysterKing]
    #20598762 - 09/21/14 08:31 PM (9 years, 6 months ago)

http://www.shroomery.org/forums/showflat.php/Number/17785910#17785910

It's a long three but has some good stuff. I think there I seen a link to an Italian king oyster farm video that really inspired me to go this route.


--------------------
Check out my youtube videos. the Mushrooms Naturally series by chefinainteasy

My new business is now on facebook at https://www.facebook.com/MushroomsNaturally?ref=hl

                                                                                                                            MY Garden:grin:

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