Indoor How Many Lights ?

[whatsgoodie]

Hmm.. without getting too much into this because it's going to become a huge scientific topic the time of year does effect the wavelength and color of the sun.. you seem to be posting a lot of uneducated misinformation to win your arguments, not the best thing to do when the goal of the site is to educate new growers..

You see, depending on where the sun is in the atmosphere depends how far the sun is from the earth which also depicts the wavelengths of the light. The longer the wavelengths the more red there is in the spectrum, the shorter the wavelengths the less red (more blue, only other visible color for photosynthesis again - without getting too technical).

The shorter days is what causes the trigger, but the intensity of the red due to the sun having a further distance from the earth and therefor creating longer wavelengths (more red spectrum visible) for the photosynthesis process is what brings upon the beautiful plants and this light spectrum argument.

A plant can grow in full 6500k or full 2700k, makes no difference - the quality of the plant will be different though.

 

[AndyBotwin]

The sun doesn't change spectrums.

Of course the sun doesn't change spectrums, but the tilt of the earth does and that change in distance effects the wavelength of light that makes it to the ground. Are you saying that there is no difference between the light spectrum outdoors in July vs. November?

Edit: I see that Whatsgoodie has addressed this much better than I did in another post...

 

[dirtybongwater]

 

[Stumpjumper]

Hmm.. without getting too much into this because it's going to become a huge scientific topic the time of year does effect the wavelength and color of the sun.. you seem to be posting a lot of uneducated misinformation to win your arguments, not the best thing to do when the goal of the site is to educate new growers..

You see, depending on where the sun is in the atmosphere depends how far the sun is from the earth which also depicts the wavelengths of the light. The longer the wavelengths the more red there is in the spectrum, the shorter the wavelengths the less red (more blue, only other visible color for photosynthesis again - without getting too technical).

The shorter days is what causes the trigger, but the intensity of the red due to the sun having a further distance from the earth and therefor creating longer wavelengths (more red spectrum visible) for the photosynthesis process is what brings upon the beautiful plants and this light spectrum argument.

A plant can grow in full 6500k or full 2700k, makes no difference - the quality of the plant will be different though.

You are right.. and pretty much confirm what I was saying except for the sun not changing spectrums, I guess it does. But the light cycle plays a very important role in flowering aside from spectrum.. Start a plant flowering on 12/12 and then throw it back into 16/7 and see what happens.. It reverts back to vegging.

As far as uneducated lol, I'll be 37 this fall. I've had plants growing since I was 17. 20 years exerience says I'm not that uneducated. I'll admit I don't know shit at all about these autos and anything I say about them is pure speculation from what I do understand about them and what I do know about photos.


This has really went way off topic anyways. The "arguement"(so to say, I'm not trying to argue) was someone saying that switching the spectrums with CFL's doesn't work, it only works with HID's.

That makes no sense at all. If you benefit using a MH and switching to HPS, you would benefit using 6500's and switching to 2700's. That was what I was saying.

 

[whatsgoodie]

What Andy was theorizing (and can't really be knocked because it does make sense) was that auto-flowers do well in straight 6500 due to the fact the ruderalis gene spawned from plants that suffered such short light periods in areas that don't benefit from full seasons. If what you say is speculation then you need to understand it will be answered with speculation - noone truly knows a ton about autos or the ruderalis gene in general, but plants and photosynthesis do benefit from the bit of horticultural knowledge I've gained through studies. I didn't mean to come off as brash and I do apologize.

 

[Stumpjumper]

Well, I wasn't speculating with my arguement. It wasnt about whether or not you can flower autos in a veg spectrum. He said and I quote "Changing lights only works with HID's, it is not the same with CFL's/T5's"

That does not make sense at all. If switching spectrums works with HID's it will work the same with CFL's lol. That is all I was saying. lol

No need to apologize, I stood to be corrected.

 

[AndyBotwin]

I'd love to see some controlled grows comparing all 6500k, all 2700k, mixed spectrum throughout, and complete switch from blue to red at the start of flower. I've seen grow journals with good yields using all those combinations, but there are so many other variables that come into play. I'm personally very happy with the short, bushy plants that I've gotten from starting under all 6500k, and I see no reason not to switch to 2700k if you have the bulbs on hand.

Good discussion guys! :smoke:

 

[Jackal]

I would like to see something like that to Andy. I plan on trying mixed spectrums with my T5. I'm shooting for maximum bud production. I have heard the veg tubes produce up to 30% more resin, I want 30% more bud!

 

[Stumpjumper]

Yeah that would be cool.. My first mission is a cfl vs HID grow.

 

[iLuvIndica]

i just wanna kno if running only veg or flower or running both is gonna give me max yield thats all i wanna figure out lmao :smoke: