OVERALL: ~ Very happy with the grow, I really dialled everything in well this run. ~ She grew super fast, I put it down to the constant oxygenation of the rootzone along with consistent and constantly optimized light DLI and leaf to air temp variance. The extra Co2 helped push the plant to its limit in terms of heat, allowing it to push its hardest. ~ The lack of HST and Defoliation I feel let it finish faster due to lack of stress and stunting. The faster finishing time along with the big yield and efficient MarsHydro light, it hugely reduced my electricity costs per gram and freed up space much sooner for the next plant. ~ Turned into a very dense bush of buds, there is even smokable dense buds at the base of the plant due to the under canopy lighting (Not as dense as top canopy buds but still decent) ~ Ran a thin line between stressing the plant and letting it flourish. The buds came out big and very dense, also it's hard to see on camera but they're very frosty too (Prob from UVB) YIELD: ~ 145g (dry) in just 9 weeks from seed. ~ 753g (Wet) ~ 0.91g/watt GENETICS: ~ MSNL - Gorilla Glue Auto ~ my favorite strain, as you can tell by my username! STRAIN REVIEW: ~ Heavy hitter, like an indica but has some of that "feel it in your face" sensation of a strong sativa. Not as heavy or as strong as other GG#4's I have smoked, which would make me question the genetics used to produce the auto version. I will wait till after a cure and judge it again. TRAINING: ~ No defoliation or HST (Bar last week for pics) ~ A little LST and leaf tucking but largely just left the plant alone to do its thing. I felt chopping healthy parts off the plant would slow the plant down and leave it with less chlorophyll to photosynthesize the light. ~ I did prune by lightly plucking dead leaves away, when the plant was ready to let them go easily. DRYING ~ 20/21'C 50% RH with air circulation. ~ Homemade Drybox made using: 2 x Bankers Boxes ~ 2 x USB Desk Fans ~ 1 x Carbon Filter ~ 6 x Clothes Hangers UPDATE: Day 5 after Harvest: ~ Fast dried some small batches, as we couldn't wait to sample. ~ Chopped off branches as some are down to 12% moisture whilst bigger buds are up at 18%. Moving to paper bag for couple of days to even moisture out then transferring to jars CURING: ~Curing in jars 3/4 full. ~ Dark closet/18'C/50% RH ~ Jars burped once Hygro passes 65% and sealed when it drops to 58%. ~ Stabilised it at 62% and after 2 weeks I'll drop it some more and stabilise it at 58% to bring out more of the flavour. ~Sitting in jars with Boveda 62% at this stage. ~ Already tastes and feels great. WATER: ~ Condensed (Starting at 40ppm) ~ Disinfected prior to adding nutrients etc. (Using COOSPIDER UVC - 253nm & 187nm bulb) CLIMATE: ~ Ambient Air Temp = 29'C ~ 28'C LST ~ Leaf to air temp variance of between 1'C ~ Night Temp = 22/23'C ~ Day/Night temp differential 6-7'C ~ Under Canopy Temp: 26'C (Day) ~ 21'C (Night) ~ Relative Humidity = 50-60%RH (Avg. 55%RH) ~ VPD = 1.45kPa (Avg.) ~ Co2 ranges from 900ppm to 1500ppm (Avg. 1200ppm) AIR PRESSURE: ~ Ambient Air Pressure (outside tent) = Mean Avg. 1010 mbars (101 Kilopascals) ~ Actual Air Pressure (inside tent) = Mean Avg. 1005 mbars (100.5 Kilopascals) ~ Air Pressure Differential = up to 0.5 kPa range between inside & outside LIGHT: ~ UVB (High intensity @ 45cm) ~ 2 hours daily mid light cycle. ~ Warm White 3000K/White 5000k/Far Red (660nm) ~ At plant canopy = PPFD 900-1000umols/s/m2 ~ Lux 45,000-55,000 ~ Daily Light Integral 55-65 ~ Under canopy lighting ~ Blue (460nm)/ Red (630nm) NUTRIENTS: ~ Mostly Advanced Nutrients (For base nutrients and most additives, as only company I could find scientific data on) ~ Canna (For Calmag Agent and Cannazym) ~ Plant Success (Great White Mycorrhizae) ADDITIONAL GROW TECHNIQUES: INFECTION PREVENTION & CONTROL: Infection control practices i.e ~ PPE, Alcohol Hand wash ~ Gray room outside tent, ~ Carbon filter ~ HEPA filter ~ Plasma Ionizer ~ Inline UV-C germicidal bulb ~ Also using an additional higher powered COOSPIDER (UVC) 253nm & 187nm bulb, to disinfect the gray room outside of the tent once a week for 30 mins. ~ Ozone (o3) gas that is produced using the COOSPIDER, is then directed into the tent to further control any unwanted pathogens. ~ Ed Rosenthal (Zero Tolerance organic pesticide), sprayed once a week as preventative measure. On hand for heavier use (Once every 3 days before lights out for 15 days) in the case of an outbreak (No outbreaks yet, due to aforementioned preventative measures)