H
Huckster79
I will post after harvest.
Not a damn thing wrong with havin yer cake and eat it too....the best of all worlds was what I strived for and achieved after yrs of trial and error , but I just got lucky where I live due to the RH levels in Hell.....anyways....This is a good question. At what point can you switch from full on growth, to premium quality environments, and still get maximum terpene/cannabinoid production? I'm looking forward to your results.
I'm not allergic to yield. Really, I'm not.
You're right on. VPD through flower until the last 2 weeks then < 78 degrees, 0 co2 supplementation and get the humidity down as low as possible. As DHF put it ... having your cake and eating it too.Dhf, love ypur outlook on many ways to do it right. Drives me nuts when people insist there is only one path to a good end. On that note i mean both about religion and weed
I have a new theory, well prob not new but new in my head, you folks seem to like delving into this topic so i will share, i will be trying this over next couple rounds and see what happens but any insight or constructive criticism before i get too deep. Just finishing a round in couple weeks with this method.but will try another one or two if it seems effective.
I have come to beleive the VPD thing makes total sense.... i have also come to beleive that lower temps and humidity may increase quality. So i trying going full VPD guidlines first part of flower. Also use co2 so will be in upper 80s and 70s rh if recall right. Aimed for that for first 5 weeks, then use a week to lower co2 and temp and humidity. Now co2 is 0 for supplimenting and temps are day 73 to 75 and night around 66...
My thought is vpd is right for full plant health, and if our goal was to raise the perfect plant in all
Aspects id say carry vpd on its full run, but bud effect is not neccesarily searved by a pefectly happy plant.. we ned stressors to steer the plant to do what we want to make atrong effect buds. So my thought is take full advantage of vpd style growth while building the plant and buds then use the stress of cool nights and dry conditions to develop bud quality one might not realize w vpd conditions right at end when the terpenoids and such really develop. , best of both worlds...?
Thoughts?..
I know my last round i got hit with that heatwave and no ac. Followed vpd, was best i could do for my girls at that point, so finished very hot and humid.. (then installed ac before next round went in. The plants looked picture perfect from the hot humid round, product lacks aroma and that special touch. Ita effective but only average and short lived.
Mybidea make sense or is it whacky?
Trichome bearing plants. They change the number of trichomes they produce per square inch, according to humidity. The trichomes trap a micro-climate next to the plant, to help keep it hydrated.
When humidity is ultra-low, the trichome density is ultra-high. The room has to be kept cool or the transpiration rates go above healthy maximums.
Flowering in 80F+ temps and 70% humidity? You're genetically triggering fewer trichomes to be produced. Higher quality comes with lower temps and humidity.
Douglas
You're correct.respectfully, I don't necessarily buy this theory because I believe genetics will play a big role in maximizing a particular cultivars expression of potency/trichome development in a given environment.
The only time I've ever seen an 'improvement' due to putting plants in dark before harvest, is when the flowering environment was stressing the plants. They appreciate the unstressed dark period and 'show an improvement.'i love to give plants lots of darkness before harvesting
So do you have a brief rundown on the environment throughout this run? Also the environment data on your past runs which were not as stinky?Definetly stinkier this harvest, zero doubt. Unsure of weight. Bud structure was quite different so im not sure. This girl had more good sized solid colas, the last round had more smaller, but not all popcorn, buds. Though ele tric bill telling me lights are cheap to run compared to enviornmental conrols!
Glad to hear it.Whoooa quality way better...... just got a lil dry piece, night and day to last run....
LOL, that VPD chart everyone follows is saying my VDP is around 18+. Also, VPD has nothing to do with "Quality," though it certainly shaves veg time off of "Quantity."
You stick with your chart though, I'll stick with 15+ years of watching genetics turn out frostier in my own garden.
https://thecleangame.net/wp-content/uploads/2016/02/jar-of-purple.jpg
I was growing cannabis like this, years before the VPD chart hit the cannabis forum.
Douglas
Been about 15 years since my first grow, welcome to the club.Hey bro bro, was cruising through the forum and came across ur jar of purp, and just wanted to say that it looks awsome!Big Props. I just started growing and made it through my first harvest. Nothing like urs, but then again i fall in that 80f 60% rH group! Anyways, Im all ears if you got any tips or just plain insight from so many years experience. Grerat job once again.
Welcome DC....Glad you`ve come up with a plan that gives you the best product for your surroundings in less than favorable conditions , but after all.....
Pot`s a weed and adapts well to all surroundings over time in all temps above freezing , and all humidity levels regardless of the fact that the largest plants consecutively on record live in South American jungles nearest the equator with all but 90-100% RH 24/7/365 and elevated temps close to 90 and always within a 10 degree variance during the dark hrs.....that said....
Trichome production is STRICTLY the plant`s "defense mechanism" against heat and ultraviolet radiation , PLUS low RH as in your geographic situation , and yes it definitely affects yield even though you say you have a better end product from stressing the plants out during the flower cycle , and that appears to be so since you claim 15 yrs growing experience....now....
All my rooms ran in the low-mid 80`s for well on 20 yrs with lights off temps again never lower than a 10 degree variable to prevent excess condensation during lights off when the plants get rid of all excess CO2 AND water vapor they took up during the lights on feed and suck juice sequences....that`s why.....
RH levels spike during lights out , and even where you live in an arrid environment, RH levels will be higher than lights on due to that all but unknown factoid on growin dope from all those yrs........and again....
Though you`re happy with what you`ve observed first hand in your environment , I assure you there`s ways to produce every bit as much resin pumping during mid-late flower with higher RH levels to prevent stomata from closing off and slowing transpiration that in turn slows nutrient uptake that in turn slows vegetative and budsite production through end of stretch till end of cycle.....guaranteed....
What I learned over the yrs from different old heads trial and error to prevent yield loss but maintain highest quality was to raise temps last couple-3 weeks strain dependent , and trichome production increased with 50 watts per sq ft.......
During lights off I dropped temps during the same period to start chlorophyll degradation and bring out the inherent "anthocyanin" in every dope cultivar for those "fall colors" outdoor plants left in the ground past first frost always experience....and hey.....
No disrespect intended at all....Thanks for sharing your results , just don`t pound sand and swear it`s the be all end all wayta do things cuz there`s many waysta skin a mule and get quality product with max trich production....anyways....
My 2 cents from doin this shit in production mode over 30 yrs inside and out while never settling for lower quality product but rather the exact opposite.....
Peace....DHF........
Edit: Where I live RH is 70-90% yr round , and I adapted with lungrooms and air exchange twice per minute without CO2 supplements ....