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Has anyone ran a side by side, watt to watt test with LEDs vs HPS?
Is there any coming back from this?I dim the ligts or raise them in the last week, not for more trichomes but the plants only want to evaporate in this stage, and too much warmth or IR will cause a evaporation problem, leafs show this as they get a canoe shape.
Thanks, I was curious about that because some tubers increase light intensity in flower but don't mention toning down the light the last weeks of the grow. anyway just starting to research this as I thought it strange because outdoor growers such as myself witness the decrease sun light as we go into fall and in the fall is when we get our buds to really grow.This thread is old and someone checked in during 2017...I STRONGLY feel this is a legit concern, and I DO decrease intensity the last 10-14 days of flower....Couple reasons...I am reducing nutrients which make the plants more susceptible to light and heat damage...In nature, there is a considerable reduction in intensity for INDICA varieties....Sativa varieties in nature do not see the variation in lighting intensity, or number of hours of daylight for that matter....I for one do not grow pure landrace eqitorial sativa strains requiring 13+ weeks of flowering....many BRED variations flower faster but were talking natural conditions...Indicas see FAST reduction on # of hours of daylight, with the sun MUCH LOWER in the sky...This is why strong indica dom plants flower fast...Cold is coming and reproduction is expedited before they die from a strong frost...So, They ARE getting much weaker intensity late in flower....Ever notice how frosty buds are just down from the main colas...Secondary branching that gets a little shading and less intensity....Modern lighting is INTENSE and WILL evaporate resins high up and facing strong light....This is typically not an issue if your running lower wattage lights....BUT CERTAINLY is a concern running 1000w HID lights and some LEDs (some are much stronger than a few yrs ago)....I've run 1000w HIDs for 4 decades now, and have watched this phenomenon a LONG TIME....intense lighing is critical for bud mass, but once your bud mass is done, late trich production, and ripening is a delicate process....They LOVE TO SWELL AND BASK IN A MUCH LESS INTENSE LIGHT....You spend months getting to this point, so you'd hate to evap your efforts.....I'm not a botanist, but been growing since 1979....less is better the last 10-14 days...You certainly cant lose yield, cause thats already locked in at that point....It time to grow and care for your trichs at this point....YT
I had a talk with a pro grower and he said he's done experiments on lower intensity and longer hours for the last (7) - 10 days of flower. If you are able to drop to 600w from 1000W with your hps ballast and you increase your hours back to 18 it will increase trichome production and thicken the buds I haven't tried this yet myself but I trust his words and doubt he'd lead me astray. I burned out 2 electronic ballast in 1 year so I'm back on a mechanical ballast I'm unable to turn it down but I can lift the reflector and lower the intensity should I try this tip.Thanks, I was curious about that because some tubers increase light intensity in flower but don't mention toning down the light the last weeks of the grow. anyway just starting to research this as I thought it strange because outdoor growers such as myself witness the decrease sun light as we go into fall and in the fall is when we get our buds to really grow.
Thats top shelf advice he gave you. That's a little trick folks have used here for agesI had a talk with a pro grower and he said he's done experiments on lower intensity and longer hours for the last (7) - 10 days of flower. If you are able to drop to 600w from 1000W with your hps ballast and you increase your hours back to 18 it will increase trichome production and thicken the buds I haven't tried this yet myself but I trust his words and doubt he'd lead me astray. I burned out 2 electronic ballast in 1 year so I'm back on a mechanical ballast I'm unable to turn it down but I can lift the reflector and lower the intensity should I try this tip.
Nope. Not at all. My buddy does 7-10 days of 18/6 regularly at the end of flower. I did it the last couple cycles myself. Don't always bother. But it does work.That doesn't cause them to reveg?
Interesting...
It can help me free up veg space by moving a few plants into the flower room during the 18hrs on. If I can coordinate it. I'm running out of room quickly as they grow. These reg seeds take up a lot of space before they get sexed.Nope. Not at all. My buddy does 7-10 days of 18/6 regularly at the end of flower. I did it the last couple cycles myself. Don't always bother. But it does work.
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