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12-03-2008, 05:55 AM #11
OPSenior Member
First attempt at a 24-hour "Martian Method"
Sal: you and your team have already done an invaluable service through your inventions and spreading of knowledge. I hope the capitalist complex rewards you, and if it does, so much the better, but if not, you must know that if you look at the scale of the change this knowledge will produce, you've already contributed to others to this point far more than most will in their whole lives, and that's only set to increase as we figure things out and as you are able to publish. :thumbsup:
Originally Posted by salmayo
Now if you'll humor me, I'd like to answer the questions following my new working theory post utilizing the info from the theory to "try it on for size" and see how it relates... This is my "mental" way of fitting pieces together to "use what works and discard what doesn't." I'm posting this for everyone to examine and poke holes in, so don't be shy.
And this is what I found out the hard way when my plants started re-vegging. I replaced a relatively fast spectrum (SID) with a combination of Red and Far Red via red incandescent bulbs (same as Dog's uncle) to figure out that while the Far Red was helping with flowering (by speeding up the misc. processes) the Red in the bulb directly counteracts with the Far Red (with respect to phytochrome function), significantly mitigating the effect. Adding only RedInc bulbs does help though, because it speeds up photosynthesis to provide energy to the misc. processes anyway. The reason you can't run them all night is that the relative speeding up via the Far Red and the relative slowing down via the Red balance out at a point that is slower than complete darkness.
Originally Posted by salmayo
The increase in Far Red at sunset and the presence of Far Red during outdoor darkness (not sure if this is all night or just for a while) serve to speed up the misc. processes enough that outdoors the plant needs only 10 hours to do the work that it takes 12 hours to do indoors, hence:
Originally Posted by salmayo
Originally Posted by salmayo
Because Far Red speeds the misc. processes more than even total darkness does.
Originally Posted by salmayo
My guess is because that while Blue light is present, the plant is geared toward vegging so that's what the photosynthesis energy is largely used for, rather than put toward flowering. If photosynthesis is added during the night, the vegging processes can't steal the energy so it's available for flowering.
Originally Posted by salmayo
True, but I wouldn't feel too bad about your "spectral disadvantage" because you currently have a daytime source that provides significant Far Red, so although it's more useful at night, it still helps you during the day. :thumbsup:
Originally Posted by Dogznova
My guesses as to why these effects occur (assuming Dog is talking about what happened after he and his uncle added Red fluoros to the night cycle):
Originally Posted by Dogznova
1,2,3: Not sure about the stem elongation, but shortening the pre-flower time, the increased trichome production, and stimulated flower production is probably due to the extra available photosynthetic energy provided by the Red light.
4: Yes, I found this out too, and it is a nice bonus
5: More Blue means more vegging/photosynthesis and more Red means more photosynthesis so overall the plant should have way more available energy, however it decides to use it.
6: The Red actually slows down the clock with respect to night time (an all-Red night is waaaay slower than a completely dark night) but at the same time, the extra Red provides more photosynthetic energy that is available to the misc. processes that come directly afterward, so they are more productive. (More detail on this in a bit)
If you add the same amount of Far Red that mother nature does, then it would seem to the plants like around 14.4 hours.
Originally Posted by Dogznova
SOD naturally provides Far Red (and therefore is more productive)
SID does not (and therefor is less productive)
If a 12 hour indoor night looks to the plant like a 10 hour outdoor night, then the time factor is 1.2 (12/10) based on the outdoor levels of Far Red light. Assuming those same levels are replicated indoors, the time factor would be the same, so 12 hours with Far Red would seem like 14.4 hours (12 x 1.2)
I believe you get lower yields this way because of a lack of photosynthetic energy near the end of the dark period. The 14-hour night provides plenty of time for the misc. processes to work, but they run out of fuel so by the end of the night time, the plant is basically stalled. This might also be a good reason for a sun-up period as well. If you turn on the Martian lights just before sunrise, you can add the energy the plant was lacking yet still have a period with high levels of available "misc. process product" such as hormones, enzymes, Pr, etc. Of course they'll get used up pretty quickly, but that's about the time you're transitioning into day!
Originally Posted by Dogznova
Dog, I definitely agree there! I've been overloaded many times already, and the two things that seem to help me are sleep and a perspective change. :stoned:
Originally Posted by Dogznova
You and me both, my friend!
Originally Posted by Dogznova
I'm still in the process of trying to figure out which spectrums have which effects, and I haven't yet brought in the idea of synergy between the spectrums, but I'm convinced that synergy is actually the most important feature of the Martian Method.
Consider the 15-minute Red night break test. Why would adding 15 minutes of much slower night time produce better flowering results, but adding it in all night produces a vegging plant?
I think this is because of some of the effects and counter-effects mentioned above. Adding the Red light reverses Pfr->Pr conversion (meaning it induces Pr->Pfr conversion), and Pr is necessary for flowering (part of the misc. processes). But, this happens only for 15 minutes and during that 15 minutes, a significant amount of photosynthetic energy was produced and is thereafter available for the rest of the night process to do even more work. Once the light is off and Pfr->Pr re-commences, the misc. processes will also re-commence, with the difference being the higher level of available energy.
On the other hand, if you add it in all night, the misc. processes have all the energy they'd need but they never get activated because of the suppression effect of Red on misc. processes.
This is my working guess, so please critique as you see fit!
I'm also taking my own advice... Yesterday I adjusted my flowering schedule again:
10 hours daylight (everything on)
7 hours Martian night (half of the Red LEDs and all RedIncs on)
6 hours SID (no light whatsoever)
1 hour Martian night (a daybreak period)
I also chopped the cheese plant. It was already at the full height of the cabinet and it hadn't even begun flowering, and the root problem got worse. In chopping it, I found out that the root problem was that it was rootbound (from being so tall) and putting it in a bigger container is not really an option so I guess that all worked out for the best.
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