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Mushrooms, Mycology and Psychedelics > Advanced Mycology
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blue light and its effect on mycelium
    #4065643 -

i know that during the later stages of growth light in the blue spectra is beneficial. however on my lastest batch of spawn i made too much, ran out of jars, and resorted to using a number of kitchen glasses.

one of which happens to be cobalt blue. i'm going to try my roommate's camera later as mine isnt doing much justice for comparison.

but the substrate in the blue glass is almost totally colonized at exactly two weeks. aside from the bottom, which is too thick/dark blue to really see through, the rest of it appears to be about 95% colonized. the rest of my jars are between 60-80% colonized, temps averaging 72-74 degrees. all jars received ~1cc, maybe just a little more.

is it possible the blue light is encouraging growth this early on or is it a freak coincidence?


--------------------
Under his instruction, I taped drumsticks to his head and turned him into a sort of mummy, or perhaps a caterpiller in a cocoon. He remains this way for about three hours, making bizarre noises, pretending to be a new species that must learn to walk and talk and eat, etc. And he communicates with other life forms by way of the antennae on his head. Eventually we jam a tube from a waterbong into it's mouth and figure he's learned all he needs to know.

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Re: blue light and its effect on mycelium [Re: starseed1066]
    #4066665 -

using a blue container for your substrate wont give the mycelium any additional blue spectrum light, it just filters out most of the red and the green.

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Re: blue light and its effect on mycelium [Re: peaceful_gnome]
    #4066805 -

Just a question. When you get 2 bulbs that are identical except one is blue. Wont they give off the same amount of light in the blue spectrum. I would think that the blue light lets just the blue pass and the regular one lets the same amount of blue with the other colors of the spectrum?

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Re: blue light and its effect on mycelium [Re: scrname]
    #4067068 -

you've both hit the nail on the head. but my question is maybe there is some advantage to it only getting blue spectrum light? i guess i'll have to try it again next batch to know for sure...


--------------------
Under his instruction, I taped drumsticks to his head and turned him into a sort of mummy, or perhaps a caterpiller in a cocoon. He remains this way for about three hours, making bizarre noises, pretending to be a new species that must learn to walk and talk and eat, etc. And he communicates with other life forms by way of the antennae on his head. Eventually we jam a tube from a waterbong into it's mouth and figure he's learned all he needs to know.

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Re: blue light and its effect on mycelium [Re: starseed1066]
    #4067859 -

i guess it would be fun to experiment.

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Re: blue light and its effect on mycelium [Re: peaceful_gnome]
    #4068126 -

i believe optimum lightnig peaks at 360nm, 440nm and 460nm ;heavy blue with a tinge of ultraviolet.

EDITED... these are the optimum light spectrums for mushroom growth...(FRUITING)

sorry i didnt know this was about myc.

allways happy to share though :smile:

Ey i saw it on this site i believe or a quotation from a book mentioned on this site. no ref sorry.

Edited by indole (04/20/05 09:52 AM)

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Re: blue light and its effect on mycelium [Re: indole]
    #4068165 -

actually optimum lighting comes from that big ball of fire in the sky.

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Re: blue light and its effect on mycelium [Re: peaceful_gnome]
    #4068191 -

peaceful_gnome said:
using a blue container for your substrate wont give the mycelium any additional blue spectrum light, it just filters out most of the red and the green.


I'd say this is about the most sensible & scientifically correct answer I've seen.

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Re: blue light and its effect on mycelium [Re: starseed1066]
    #4068224 -

I am confused... If the spawn jars are colonizing they are kept in the dark. What does the light color matter as far as speed in colonization if there is no light?


--------------------
"Love is the Law"
"Love under Will"

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Re: blue light and its effect on mycelium [Re: kanpan]
    #4069988 -

kanpan said:
I am confused... If the spawn jars are colonizing they are kept in the dark.  What does the light color matter as far as speed in colonization if there is no light?


because i dont keep mine in the dark yet. at the moment i dont really have a place thats warm and dark. so for now they sit on shelves next to my heater.

and to the poster above: yes, they filter out the other light leaving blue light, which it gets no matter what. we'd already established that much :laugh:


--------------------
Under his instruction, I taped drumsticks to his head and turned him into a sort of mummy, or perhaps a caterpiller in a cocoon. He remains this way for about three hours, making bizarre noises, pretending to be a new species that must learn to walk and talk and eat, etc. And he communicates with other life forms by way of the antennae on his head. Eventually we jam a tube from a waterbong into it's mouth and figure he's learned all he needs to know.

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Re: blue light and its effect on mycelium [Re: starseed1066]
    #4073659 -

Seeing that we've established the fact that the mycelium isn't receiving any EXTRA blue light, the best answer for your question is to try this again with more blue jars, and the same strain grown under the same conditions, etc. Right now, simply having one glass that was colored blue colonize faster is probably just a fluke. If you can repeat these results, then maybe we should all invest in blue cellophane to wrap around our clear jars.

Chances are, though, that the reason your mycelium in this jar colonized faster, is because it had less light delaying its growth. NO light is optimal for colonization.


--------------------
"nothing is fool proof for fools are ingenious and will find a way" - Prisoner #1

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Re: blue light and its effect on mycelium [Re: Herbin_Legend]
    #4074163 -

Quote:
Herbin_Legend said: NO light is optimal for colonization.


duly noted. so maybe next time i do a batch i should put a couple in the blue glasses and compare to the ones in darkness. although give my recent seeking (and your input) i doubt that blue is superior to darkness...


--------------------
Under his instruction, I taped drumsticks to his head and turned him into a sort of mummy, or perhaps a caterpiller in a cocoon. He remains this way for about three hours, making bizarre noises, pretending to be a new species that must learn to walk and talk and eat, etc. And he communicates with other life forms by way of the antennae on his head. Eventually we jam a tube from a waterbong into it's mouth and figure he's learned all he needs to know.

Extras: Filter Print Post Top
Re: blue light and its effect on mycelium [Re: starseed1066]
    #29071616 -

Hi all I have experimented with diff lights and my experience is that when I used a 460nm pure Blue light from start to finish the Blue light was only really beneficial through the colonisation phase by promoting very healthy and fast growing mycelium but once pinning began all the blue light really did was dramatically slow the fruiting phase and all 3 shoe boxes and the fruits were the smallest I have ever seen. I then took one of the shoe boxes out and added it in my other tent with my full spec LED and left the other 2 under the 460nm blue light. The end result of this little experiment was that the single shoebox under the LED produced much bigger fruits on the 2nd flush but the other 2 had come to a complete halt.

This leaves me to now want to conduct another experiment, I’m going to use the pure blue for colonisation and then switch to full spectrum LED once I start fruiting conditions.
And to compare,I’m going to colonise the other one with just darkness and then use LED for fruiting. Will be very interesting to see the results of this experiment.

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Mushrooms, Mycology and Psychedelics > Advanced Mycology
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