My Room

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dodobird

Well-Known Member
Sublime757 said:
Nice setup bro! 5-7 inches is wayyy to fucking close for seedlings unless you're running a cooltube or something. Keep it at the height you have, and if they start looking lanky then try lowering the light. As far as the mylar concern that, too, is not a problem. I personally prefer to use flat white paint. Reasoning dor this is the ease of cleaning. Once mylar gets dirty is damn near impossible to clean and a pain in the ass.
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Thx man. Yeah seedlings don't require huge intense light just yet plus it would be too hot i'm sure. I do outdoor every year, but this will be my first indoor. Kinda the same, but different. We'll see how she goes.....:bigjoint: and yes i agree with the white paint, would be cleaner and easier.
 
rasvial

rasvial

Well-Known Member
actually, the can't see analogy is almost better. There are lots of frequencies of light that aren't effective for photosynthesis (which is why halogens are effective for manipulating the photoperiod, while being useless for growing). The reason the leaves look green, is because the material that colors them (chlorophyll) reflects green light back, and absorbs the others- so all you see is what is reflected back, green. Therefore, the leaves quite literally just reflect back the green spectrum and can't tell there isn't light if that's all that's present (plants don't have brains after all, they work miraculously out of pure mechanical instinct). Any other color of course gets absorbed (or leaves would be a whiter/yellower color), thereby signaling to the plant that the sun is out.

Enough geek shit, point is, everyone's right. The reason everyone's right is just a bit of physics regarding light.
 
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dodobird

Well-Known Member
rasvial said:
actually, the can't see analogy is almost better. There are lots of frequencies of light that aren't effective for photosynthesis (which is why halogens are effective for manipulating the photoperiod, while being useless for growing). The reason the leaves look green, is because the material that colors them (chlorophyll) reflects green light back, and absorbs the others- so all you see is what is reflected back, green. Therefore, the leaves quite literally just reflect back the green spectrum and can't tell there isn't light if that's all that's present (plants don't have brains after all, they work miraculously out of pure mechanical instinct). Any other color of course gets absorbed (or leaves would be a whiter/yellower color), thereby signaling to the plant that the sun is out.

Enough geek shit, point is, everyone's right. The reason everyone's right is just a bit of physics regarding light.
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No offense dude...but i don't see how basic photosynthesis has anything to do with this thread...
 
rasvial

rasvial

Well-Known Member
lol it was just a point of correction. and the product of blazing and browsing- I responded to something on the 1st page without even looking at the rest
 
M

Milla

Member
dodobird said:
I read in George Cervantes' book that you should "put mylar everywhere...floors, walls, ceilings".

Let's see what other peeps have to see about light height and mylar........anybody??
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I vote that you remove it. For the room set-up, Jorge's book does say that. I thought it also went over the sensitivity the leaf undersides and stomata have for light, but I could not find a page number. I would be careful, It is 'unnatural' to reflect light upwards, the sun doesn't do that. Flat white does not reflect as much light as mylar, so it may not burn the plants like mylar could. Good looking plants, btw. A few of those leafs on the small ones look like they are starting to curl? Could mean temperature stress or thirst.
 
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dodobird

Well-Known Member
Milla said:
I vote that you remove it. For the room set-up, Jorge's book does say that. I thought it also went over the sensitivity the leaf undersides and stomata have for light, but I could not find a page number. I would be careful, It is 'unnatural' to reflect light upwards, the sun doesn't do that. Flat white does not reflect as much light as mylar, so it may not burn the plants like mylar could. Good looking plants, btw. A few of those leafs on the small ones look like they are starting to curl? Could mean temperature stress or thirst.
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Update time: 21 DAYS OLD TODAY

1. The two that were kinda yellow got really yellow and didn't look well. I figured it was the Miracle Gro soil so I transplanted them Dec 1st into
ProMix. First couple of days I thought for sure they were dieing and then dead, but I kept them in the pots in hopes of a miracle.
2. 3 days later (Dec 4th) they were actually showing signs of life again!!
and i almost threw them out.
3. Two others were showing signs of light green leaves so I fed them Flora Nova yesterday for the first time. They`re looking better after one day.
4. The final girl, the runt from the start is doing the best. Leaves are dark green and she`s groovin, but a little heat stress so I moved the light up a
few inches and got more air on her.

Below are some pics:

This pic is the two small ones that were very yellow, but they`re bouncing back now....




This pic is the the two girls that need some nutes...



This pic is the baby runt that`s doing the best, but a little heat stress....



Family Shot....

 
x4u2sm0ke

x4u2sm0ke

Member
dodobird said:
Got my 5 feminized Great White Shark seeds from Green House Seed Co. and germed in paper towel for 39 hours. Roots sprouted on all 5, now they're in pots with potting soil mix. Room is 4x6 with 600W MH. Think I'll go 20/4 for seedling stage.



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How much where great white seeds?
 
tom__420

tom__420

Well-Known Member
Some of them look hungry for nitrogen, have you fed them yet?
The yellowing of the lower leaves is a sign of nitrogen deficiency
 
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dodobird

Well-Known Member
tom__420 said:
Some of them look hungry for nitrogen, have you fed them yet?
The yellowing of the lower leaves is a sign of nitrogen deficiency
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I thought it was the Miracle Gro as well so I transplanted them into bigger pots with ProMix. Started a regular feedling last 2 weeks with FloraNova. Plants are much happier now.









 
Sublime757

Sublime757

Well-Known Member
Beautiful node spacing! Tight and shrub-like, my favorite. And I've seen all the Jorge vids and there are a few instances where his preference super-cedes the actual best method. Titanium matte white paint is just as good over a long period of time as mylar. But keep the mylar 'til the shit gets too dirty and start drastically losing reflectiveness.

Looking nice, though. Keep it up!
 
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dodobird

Well-Known Member
Sublime757 said:
Beautiful node spacing! Tight and shrub-like, my favorite. And I've seen all the Jorge vids and there are a few instances where his preference super-cedes the actual best method. Titanium matte white paint is just as good over a long period of time as mylar. But keep the mylar 'til the shit gets too dirty and start drastically losing reflectiveness.

Looking nice, though. Keep it up!
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Thx brother!
 
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