g1itch

Well, I heard about "Icing" root systems before at the end of harvest, except it wasn't the last two days- it was the last week.

I heard this from my brother who lives in San Fran, and is friends with lots of compassion club growers.. he says they told them it increases trich production.


If you really think about it, THC is created as a self-defense mechanism for the plant. You can simulate insect attacks with a chemical to increase trichome production.. You can add UV-b lighting, adding harmful rays so the plant will create more trichomes for protection from the harmful light... You lower the humidity to insane levels like 30% to make the plant create more trichs....

It seems like trichomes are made completely in self-defense. due to environmental stresses

With that being said, I still don't know if icing the root system will help at all... But personally I think it just might.. And like Justwingit mentioned earlier at the end of the plants life cycle in nature, the root system will become a lot more cold than it was during the beginning of its life.

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tripps

I've heard a lot of different theories on the purpose of trichomes, but I think they're just that, theories, I don't think anyone knows why a MJ plant produces trichomes.

I remember Burnsy doing a 48 hr dark period, but when I asked he said it was an experiment, don't remember if he saw an improvement. So many dang variables in a grow, it's hard to say what makes a difference.

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420oz

I think you might be on to something. Think about it, you can shock the plant and make it think that it only has a little bit to live, and put the last bit of energy it has into the flowers (where the seeds are normally located), so that seeds can mature quickly for the plant to be able to reproduce. If you took good care of your plants, it would not have any seeds and the energy will not be wasted on seeds, but go into the flowers, thus producing more potent bud. I also think it might be good to leave the lights for 24 hours per day for 2 days, and then giving it a 4 day dark cycle, with the ice in the roots for the last 2 days.

GreenDragon2k

Exactly my thoughts except the only problem is most reef tank chillers are only designed to go down to about 65 F which is exactly where I keep my nutrient solution anyway, at all times. Coolest I've gotten a standard reef tank chiller to cool to was about 58 degrees, but the chiller was way oversized.

I suppose if you were specifically shopping for a chiller for this you could get one designed for a bait tank/ crab tanks which are designed to run in the 50 - 65 degree range.

But I've never heard of such thing as lowering root zone temps... to increase potency,,, sounds like it stresses the plant a little and forces her to produce more thc, who knows... Maybe I'll crank down my chiller a bit and see if I can get some more crystals on these buds, I'm about to harvest in a week


The 24h or 48 hours of darkness before chop I've heard about frequently, and done it myself. Never noticed much difference... Then again I've never grown any white strains

I always harvest after at least 12 hours of darkness as peak THC times are @ night,,, and lows are after the light has been on all day.

/edit okay i just turned my chiller to 56 degrees we'll see what happens I'll turn the air conditioners down to 64 just for shits and giggles, and maybe some purples, should help the chiller out a bit too.

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green thumb

I have a recirculating chiller (Haake off ebay $150) so can set or program as desired with a heat exchanger.
Have not had a chance to try but am inclined to run the last week cooler when lights on, cooler yet with the lights off, say 56-58° F

EDIT: talking soil/root temps, so the water would be offset some

EMj

I perfer to give the plants 48-72 hours of darkness at the end. I also like to drop the temps (air) to as close to 60 as I can. This helps with resin production and also turns some strains purple enhancing bag appeal. It works well. Yeah watch for mold, keep your RH in check. Never heard of the icing down the media though....
Peace,
EMj

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Sso

hmm, the plants metabolism slows in cold, so it maybe works harder, but still the metabolism is slower.

maybe, if you chilled the plant just for say 1-3 hours at the start of the day, then it would give it self a boost, thinking that the cold could come back at any time, reinforcing that idea the next day with 1-3 hours of chilling again

im not gonna try this, i would like to see a side by side comparison of clones, 1 chilled, 1 in 48hour darkness, 1 in both and so on. but you would need lab equipment to really see if there was any difference and i doubt the difference reaches 1% anyways.

im not in a position to test this.

interesting ideas, but i assume mostly they are unecessary torture for the plants.

the cold at the end, brings on the purple and that has bagappeal which i dont give a fig about anyways (and judging by the state of much of the weed on the black market, i seriously doubt most dealers do anyways)

420oz

Well, if I can have some purple buds, I won't mind. I beleave, the nicer something looks, the more amazed my friends are going to be, and it would look beutifull in the garden.

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Sso

well i live in a cold place, i´d have to go to some trouble to not get purple stems! so maybe i shouldnt say any more!

bryansm

We know why they make trichromes. we just dont know why it has THC.

Many different plants make trichomes, and they are a self defense mechanism; have you ever seen a tomato plant they have tons.
most plants make them for heat dissipation, but there are numerous other reason why they are made.

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