phytochrome manipulation

[Desertboy]

The stretch in 4 days using FR at night all night for 3 nights!

I flicked Sunday due to timer failure this will be a 15/9 run using mechanical day timers so it will take 9 weeks to grow this strain.

I've now got the FR lamp on for 1 minute at lights off.

 

[click80]

check out www.co2monitor.com and look under the wall mount types (i think), they have a great deal on co2 monitors and monitor/controllers...they are very easy to deal with also (tech support) if you want to have the correct output voltages for integration in CEAC controllers....just an FYI...good luck and thanks for taking this on and all the information...its been really informative...

peace

 

[Desertboy]

check out www.co2monitor.com and look under the wall mount types (i think), they have a great deal on co2 monitors and monitor/controllers...they are very easy to deal with also (tech support) if you want to have the correct output voltages for integration in CEAC controllers....just an FYI...good luck and thanks for taking this on and all the information...its been really informative...

peace

I have a co2 controller not in hurry to purchase another one unless it's a datalogger.

I don;t use co2 in summer as I don't use air con (I have a split I've never fitted) so I use temp diff for CO2 in winter only and air breathe in summer.

 

[click80]

yes they have the K30 model which is a datalogger...the other montiors etc...come w/software that allows you to hook monitors up to usb port on pc and records levels in .csv format....def worth a look anyway and maybe pass info along...the ones i have cost $195 and the monitor/controller was $219....better than 400 dollars for most others...they also use the SenseAire infrared....i love mine....i was able to have them preset the outputs to match my enviromental controller...

 

[Desertboy]

I'd seen the K30 model before looks very good value my CO2 controller was £260 including relays I needed to make it work like I wanted. (I used 1 relay to take the load of the solenoid and 1 relay which turned the solenoid off if the fans were running.)

at that price I could buy 2 K30's, does the K30 have relay outputs to control CO2 or just datalog?

 

[dextr0]

Desertboy damn it! U got it going on. This is what I like a proper experiment. Nicely done and thank you for sharing!

(on a personal note me and my family are ok yall. It took work but we did it...be happy for me fuckers!!! Ha! I love yall for keeping it real..and giving somebody the benefit of the doubt.)

dextr0

 

[Desertboy]

Desertboy damn it! U got it going on. This is what I like a proper experiment. Nicely done and thank you for sharing!

(on a personal note me and my family are ok yall. It took work but we did it...be happy for me fuckers!!! Ha! I love yall for keeping it real..and giving somebody the benefit of the doubt.)

dextr0

Nice to hear things are picking up I had some very good news this week as well maybe my Karma I sent your way has come back!

I was going bankrupt and I scored another contract which will keep me busy for 6 months so I have a bit more breathing space to find some more permanent contracts.

I build the rooms like I do to show you guys on the other side of the pond that you're not the only ones that know how to have some fun growing!

 

[gudkarma]

this thread is turning out awesome!

i think it's important to re-read everything before i involve myself.

still, i did catch something that is of interest to me a few pages back... the use of the 700nm (ish) wavelength to encourage trich production.

...as a form of stress.

i would love to experiment with these bulbs the last week of flower... especially with something i've run a few times.

 

[Desertboy]

You want 280-320nm of UV for max trich production

A researcher conducted a controlled experiment in a greenhouse. He lit a group of high potency plants similarly except with the addition of UVB light to some groups. He found that the percentage of THC increased in a direct ratio with the increase in UVB light. This research confirms the adage that high altitude plants are more potent than those grown at low altitudes.
If you look at old-world land races of cannabis, plants that have become adapted to the climate and latitude, the ratio of THC to CBD starts at 100 : 1 at the equator. At the 30th parallel (The Hindu-Kush Valley) the plants have a ratio of 50 : 50. At the 45th parallel the ratio is near 1 : 100. This corresponds roughly with the amount of UVB light received at these latitudes. There is much more UVB at the equator than the 45th parallel.
How can you get more UVB light to your plants? Certainly it's true that MH lamps emit more UVB light than HPS lamps. Still the amount that MH lamps emit is small. In fact, many manufacturers use UVB shielding glass to filter out most of the UVB that's produced. The UVB light the plant receives from an MH lamp does increase the plant's potency slightly at the cost of yield, but there are better ways to introduce UVB light into the grow room. They include reptile lights, which emit about 10% UVB, and tanning lamps.
The problem with using these lamps is that they are associated with increased number of cancers and many other problems. They should not be on when you are in the grow room. Not much research has been conducted on using them to produce higher THC values. I will do a full report in a future issue.

from another forum google UV cannabis for it first hit.

This light will be bad for us and our eyes and I suspect we need very little to get the desired effect and it would be easy to overdo it.

​

 

[Desertboy]

oops wrong thread

 

[Desertboy]

305nm seems to be the UV-b peak, anyone link me to a site where I can get UV-b LED's preferably 3w ones already mounted on the star.

 

[dextr0]

Try to find out where these guys get there bulbs.

http://www.s-et.com/?gclid=CM3d9P7D4agCFchg2god0h2JDw

I found this on that site. Pretty interesting to me. I always try to mimic the sun.

1 -5 % Ultra Violet light 40 - 44 % Visible 55% Infrared

 

[Desertboy]

You can buy direct from them, minimum order $300.

When I feel more flush cash wise and if they're the only people I can get from I'll make an order.

Not sure how to use those LED's they'll be many questions for sure.

Any wavelength within 240 - 400 nm range.

which is spot on 240nm for UV-c to clean incoming air (light baffled) or to clean sealed room air to kill bud rot spores.

315nm for frostiness.

I don't think UV-a is needed but please some one correct me on that and don;t take it for fact I'm probably wrong.

 

[gudkarma]

i picked up some 480nm t5 lights to see how they work on my cuts.

got 10 complete lamps for $30 shipped to my door... killer ebay deal.

only running 5 days, i dont have enough "data" to comment in detail.

can say that running without a dome on the cut trays usually is impossible in my lab.

you can see i have trays (all week under the 480nm light) without dome... and those cuts rooted faster than ever.

without a doubt, i can see something is different going on (with the cuts).

cuts look fabulous, are green and lush, and stand at attention better than ever before... and i root 120 a month easy.

 

[Rasta2000000]

martian method; photosynthetic artificial darkness

look it up. rauber & salmayo have a timing method for what you fellas have been chatting about.

anything smaller than 560 nm triggers the daylight response, you can have red (660 peak) and far red (730 peak) on during the darkness and it will not count as daylight hours, only blue light makes the number of day hours. you shouldnt add far red during stretch, wait until the plant has mostly stopped vertical growth, then add the 730. there's a few experiments you can do to see results.
flower with 6 hours GE halogen reveal of the same wattage hps which you will use for the next 6 hours for the last three weeks of flower. youll never have smoked weed as strong...:evilgrin0013:

 

[primeform]

got any links clongo? Im pretty sure 660nm red converts the photochromes.

 

[Desertboy]

When Pfr absorbs far-red light it is converted back to Pr. Hence, red light makes Pfr, far-red light makes Pr. In plants at least Pfr is the physiologically active or "signalling" state.

http://en.wikipedia.org/wiki/Phytochrome

I'm sticking with Wiki until I see convincing evidence otherwise.

 

[Desertboy]

It was earlier hypothesised in this thread that 470nm light on 24/7 and 660nm on 12/12 with 730nm on the opposite 12 of the 12/12 might enable us to light plants 24/7 and flower.

This might explain how they are growing plants to completion but not why you would use their combination of lights how they have.

I don't understand the logic to what they are doing if someone can break down what is happening in the Pr->Prf transition using the lights they are and/or how the cryptochrome play into this (they seem to be the 400-520nm photoreceptors not phytochrome!) I would be eager to hear.

I hypothesise 1 of 2 things are happening with the "Martian Method" which enable successful flowering. Either the Far Red is overpowering the Red light and forcing flower (This would be really interesting as it might mean we could force flower outdoor greenhouse plants much earlier) or when lit by blue light alone the Prf-Pr decay is happening in the absence of red light.

Either way it is not what they're after.

I'm surprised they're plants didn't stretch to fuck TBH, my AK47 stretched 10" in 3 days using FR through the dark and I see no mention of them pulsing the light.


Obviously nm ranges are far broader than quoted just hitting the sweet spots.
​

 

[primeform]

I think there is something to having both R and FR on at the same time. There is an increased photosynthesis that happens when the Pr and Pfr are continually transitioning back and forth during the day cycle. Thats why I think LED grow lights that dont use any of the far red leds arent as effective.

Also I think its obvious that we can run different spectrums at night as long as we arent converting the Pfr back to Pr. Hence the reason green head lamps can be used in grow rooms without interrupting there cycle. I think the real question is WHAT spectrums would be helpful during the dark period and what we want to accomplish. Can you still have photo synthesis without 660nm? Can we just add trichs by giving it blue at night? Probably would want to add different spectrums at different times in the cycle to accomplish different goals.

Conclusion: If you happened to real all that crap above.. I think 14/10 indoor with a 5 minute flash of 730nm is optimal. Being able to add different spectrums during the 10 hour dark cycle without interrupting the photochromes could be even more beneficial in certain aspects but I dont think you can mess with the red-far red spectrums because they govern the flowering function themselves.

All of this is just theory and we should do different experiments to test validity.

 

[Desertboy]

If I was to use FR with R I would use it for the last 2 hours of lights on and the first hour of lights on which would replicate nature somewhat.

Now I have the lamp I realize that most evenings at least in the UK right now we're getting bathed with FR although of a very low intensity a magnitude lower than what the lamps deliver.

It's a weird reddish glow at the edge of vision, we've all seen it before I'm sure I just didn't realize until I bought the lamp.

I notice the FR effect seems to last 90 minutes around dusk time.