Search results

My 2 cents Not revolutionary by any means, lol and I'm sure this is redundant for many, but if you ever have questions, turn to Google. Look up and search for actual studies that you can download for free. The experts are experts for a reason. I try to learn as much from them as I can and you...

"... The drought treatment elicited a 12% in- crease in THCA concentration and a 13% increase in CBDA concentration but had no effect on the concentrations of the other detected cannabinoids..."

Also remember that kJ of UV-Bbe is not the same as kJ of UVB. 13.4kJ/m2 UV-Bbe does not mean you need 13.4kJ/m2 of UVB. UV-Bbe is a specially weighted form of UVB. 3 spectra. The FS40, the celluose acetate transmittance, and Caldwells's action of generalized plant damage spectra. FS-40...

^^^Study done by experts, guys with PhD's. - 25mg THC per 1g of bud at <1KJ/day UVB - 32mg THC per 1g of bud at ~13kJ/day UVB 32mg ÷ 25mg = 1.28; 28% increase This study was done decades ago in the 1980's. Tbh UVB and the effect on THC is kinda an old discovery but imo its now gaining...

Some good points here, and also in your previous comments too! Tbh it's probably closer to 25× - 50× more heat per watt input. Visible spectrum are around 50 - 65% efficient while UVB are like 1-2%. Because the LED has only 1 way of shining, ie it doesn't shine in a whole sphere, but only a...

Preliminary efficiency comparison and investigation between an Arcadia D3 and generic UVB LED... https://forum.grasscity.com/threads/diy-uv-infrared-supplement.1538871/page-2#post-25309082

295nm is the sweet spot for a single source UVB solution. HY5 expression peaks around 300nm, while UVR8 absorption peaks closer to 285nm and UVR8 action peaks around 290nm. At 295nm you stimulate both UVR8 & HY5. If using a single UVB source, and utilizing a chip with a peak lower than 295nm...

Everything has a "specific heat capacity." They are derived expirementally (I believe) and you just have to look them up. Heat capacity of H2O... Specific heat capacity of water is ~4.18J/g·°K. (It takes a little more than 4 joules of energy to increase the temp of 1g of water by 1° Celsius)...

Hey there, long time reader, figured I'd start commenting. The plant really stretches the first few weeks of bloom, so I like to try to anticipate the stretch. Pre-bloom I only let maybe an inch or 2 grow through the trellis. If they start to poke through more than an inch or 2 then I pull the...