Mau5Capades: builds & grow journal

So start your own thread and leave this one to its intended purpose, DIY LED.

Queece said:

Well unfortunately for GrowMau5, 90% of the users of this site know absolute dick about cannabis other than what can be bought off a shelf. Most people that are here to learn subscribe to that same consumer-cult philosophy with cannabis cultivation.

The rookies in this thread already show magnitudes more promise than the guy asking "which line of nutes is good for purp?", so I would like to, on behalf of Mau5, fill these new guys in to the best of my ability so that Mau5 doesn't have to lose sleep typing a bunch of redundant stuff for johnny-come-lately.

I really think that the community will benefit immensely from COBs, and with Mau5 indisposed, I figure I can disseminate some stuff for the new guys quicker and maybe less technically while Mau5 handles his shit. Not a problem for me, the life of a cannabis grower can be pretty uneventful when you're done watering and pruning for the day, especially when you break your ankle skateboarding like a total buster

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Here's you in a Ferrari forum: "Make your own thread about driving, we're talking about side-view mirrors here"

Growmau5 said:

jusess christ, yours look 5 x bigger than mine. there is a lot of different heritage in that strain, could be many vastly different phenos.

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What was that?

Queece said:

What was that?

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Your bud shots and plant pic in post #1191 are no where near the average gardener on this site. Well below.

Like I said though Mau5, the key to the colas, is heat. It came to me like an epiphany, I was driving around dusk and the sun was directly in my eyes, so I put up my hand to dam the light and that's when it hit me. That exact same feeling I get when the back of my hand is a few inches away from a bare chip at 1400mA, but my 700mA chips aren't that same intense feeling.

I'm running a side-by-side now with one 4*8 using 20 x cxb3070s, and one using 20 x cxb3590s. Now I am thinking, and I might be wrong but that's why I'm testing it, but I am thinking....... the 3070 tent will yield more. (Both tents are an even 1000w). The heat m'boy. Maybe we never needed the magic feather. The 3590 is the F-35 to the 3070's A-10 Warthog.

Maybe what we need instead of added UV light.... IR light? To change the heat characteristic of the relatively cool 3590s running at 700mA. You think there may be any merit to that? There's much more IR in the sun's spectrum than UV, wouldn't it make sense that the heat characteristic of light would have almost as much to do with photosynthetic activity as the actual visible light? Like a higher heat light with more IR would be better at imparting kinetic energy into solid objects, like a leaf. Leaf temperature obviously has an affect on growth and flowering, but what if it was more complicated than that? Like how many volts are being absorbed by the plant leaf, I believe would be the ultimate measure of output of a given light. I think there's photosynthetic activity, obviously that is important, but there are also concentration gradients that are established by things like temperature differentials across two membranes that are absolutely essential to tell the plant what to do with all the energy it is absorbing. I'm trying to find the exact master regulatory feedback loop in undifferentiated meristem cells, but I'm thinking there's actually an IR threshold that could be holding really efficient COBs back.

It makes some sense that the IR can aid transpiration, thus moving more nutrients through the plant.

Yeah man, couple that with managed vapor pressure deficit, and I think that's almost got a COB setup firing on all cylinders.

I feel like a lot of people are over-thinking their builds, trying to achieve a puritanical "efficiency" but might be suffering from the law of unintended consequences. 700mA isn't even close to enough current for a 3590, it's like driving an M6 around with the chauffeur key. Sure, it gets great mileage and that function exists, it's just antithetical to the reason that would compel most people to purchase an M6.

What I think is best for a plant, and I very well could be wrong, is very intense point-source lighting with a well defined, directional heat-footprint that the plant can reference for resource allocation like auxin hormone distribution. Don't burn the plant and go overboard, do like my uncle that stabbed a man and just "let them know you're there".

p4id said:

It makes some sense that the IR can aid transpiration, thus moving more nutrients through the plant.

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This is a potential concern for me as I design the growing environment. It can't be too cool!

Im finding that in winter my space is too cool with just the cobs, so I'm mixing hps with cobs for 4 months of the year.

This was covered a long time ago in gg's and chaz's older threads. For every 10 degrees you increase in the leaf surface. It doubles the plants metabolism. You can do this with IR light so not to increase ambient temp. But the one draw back is IR light promotes a lot of stretching. It also contributes to denser flowers. You also need to increase the amount of co2 on the leaf surface as well.

But cooler temps will have better trichome production.

This was brought up in discussion on here then because of something Subcool said on an older weed nerd ep about bud size vs temp.

p4id said:

Im finding that in winter my space is too cool with just the cobs, so I'm mixing hps with cobs for 4 months of the year.

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you are aware that there are more efficient ways to generate heat than using an HID

Queece said:

CD bin produce the most photons. The lower the CRI, the higher the photon output because the reds are not being corrected to white. CRI is something you should pay money for if you are lighting a retail space, but plants prefer low CRI from my experiments. Go for the highest bin in the lowest CRI if you're looking for chips.

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My computer won't load a chart and I just want to be sure.
Th

PurpleBuz said:

not always. sometimes the price for that rare top bin isn't worth it

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So does letters further down the alphabet mean higher bin or for example DD is higher than BB?

hyroot said:

This was covered a long time ago in gg's and chaz's older threads. For every 10 degrees you increase in the leaf surface. It doubles the plants metabolism. You can do this with IR light so not to increase ambient temp. But the one draw back is IR light promotes a lot of stretching. It also contributes to denser flowers. You also need to increase the amount of co2 on the leaf surface as well.

But cooler temps will have better trichome production.

This was brought up in discussion on here then because of something Subcool said on an older weed nerd ep about bud size vs temp.

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That's an oversimplification of what's going on, it works on a practical level. I don't want to know that increasing temperature has a direct correlation to metabolism, I know that. I want to know why that happens and if there is a physiological way to induce that response with IR without actually increasing the overall temperature of the grow exponentially. I'm thinking IR laser diodes would work with a diffusing media.

SaltyNuts said:

@Queece You've got interesting things to say, can you expound on Vapor Pressure Deficit?

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Absolutely! It's the grower's secret handshake! Basically, for every leaf temperature, there is a corresponding vapor pressure deficit that increases the rate at which the plant is wicking water from the roots.

Take one of those e-cig coils, take the cap off, and mash the fire button. You'll see little wisps of vapor coming off, but nothing major. Now blow some air across them. Now take it outside where it's humid. You'll know exactly what vapor pressure deficit is.

What you want to do, is keep your temps screamingly high, like 85-87 and 99% humidity. You cannot have mold problems if you temperature doesn't drop into the 60s, spores can not germinate. Growing like this is terrifying, you know if you fuck up once, that whole crop is doomed, but if you don't... well Medicropper clued me in to VPD. I think he's pretty successful, probably the biggest exponent of high temps and 99% humidity.

It's called the "Q10 coefficient". It's not an over simplification, it's reality, and why cannabis thieves at 90*f...near double the metabolism rate of a plant at 70F.

Medicropper just got onto VPD a few months ago. But yes...VPD is important.

Queece said:

That's an oversimplification of what's going on, it works on a practical level. I don't want to know that increasing temperature has a direct correlation to metabolism, I know that. I want to know why that happens and if there is a physiological way to induce that response with IR without actually increasing the overall temperature of the grow exponentially. I'm thinking IR laser diodes would work with a diffusing media.



Absolutely! It's the grower's secret handshake! Basically, for every leaf temperature, there is a corresponding vapor pressure deficit that increases the rate at which the plant is wicking water from the roots.

Take one of those e-cig coils, take the cap off, and mash the fire button. You'll see little wisps of vapor coming off, but nothing major. Now blow some air across them. Now take it outside where it's humid. You'll know exactly what vapor pressure deficit is.

What you want to do, is keep your temps screamingly high, like 85-87 and 99% humidity. You cannot have mold problems if you temperature doesn't drop into the 60s, spores can not germinate. Growing like this is terrifying, you know if you fuck up once, that whole crop is doomed, but if you don't... well Medicropper clued me in to VPD. I think he's pretty successful, probably the biggest exponent of high temps and 99% humidity.

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High temps and 99% humidity? Your gonna hurt my brain. This whole time I've been going for 50% humidity and 75 degrees....

care to dive into how high temps and humidity effect yield? Potency? I've seen quite a few grows that have fuffy-less frosty buds cause of high temps (or at least that's what I thought it was).

Greengenes707 said:

It's called the "Q10 coefficient". It's not an over simplification, it's reality, and why cannabis thieves at 90*f...near double the metabolism rate of a plant at 70F.

Medicropper just got onto VPD a few months ago. But yes...VPD is important.

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So the plant is working at its best at 90F?

GG I'm aware of the Q10, I took 3 years of university molecular-biology with weekly 4 hour labs in a botanical garden. That isn't describing how that phenomenon is taking place, mechanistically. I can say screwing makes a baby, and that's true, but I could then wax poetic for 6 hours about hox genes assembling each individual part of an embryo. The latter information is useful for diagnosing genetic diseases to make stronger babies, the former is good for simply making babies.

Citing data and graphs is very important, but it is not as important as developing YOUR OWN CONCLUSIONS from......oh this is going to hurt....... YOUR OWN DATA SETS. That kind of chicanery is so rampant in 2016, parrots copy/pasting 12-year-old articles from the first page of a google-search. Look at this mess we're in with "climate change". Do yourself a favor, I know you've heard the "9/10 scientists agree" platitude, but look at how many DATA SETS are being used to determine that. And then how many John and Jane Q's then cite those "scientific articles" from buzzfeed, essentially manufacturing (whether intentionally or unintentionally) a false consensus of meme science pabulum. Limited-hangouts. Science is hard as a motherfucker, there's a gated-entry because sloppy people pollute information with shitty data sets. The Q10 wasn't a cannabis study, that's like drawing the conclusion that: "all humans are immune to sickle-cell because white people don't get it."

hyroot said:

This was covered a long time ago in gg's and chaz's older threads. For every 10 degrees you increase in the leaf surface. It doubles the plants metabolism. You can do this with IR light so not to increase ambient temp. But the one draw back is IR light promotes a lot of stretching. It also contributes to denser flowers. You also need to increase the amount of co2 on the leaf surface as well.

But cooler temps will have better trichome production.

This was brought up in discussion on here then because of something Subcool said on an older weed nerd ep about bud size vs temp.

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If one were to add IR during lights on after the first 3 weeks of flower, passing the majority of the stretch phase, there wouldn't really be any bad effects then eh? Just dense flowers?