Settle this please. temp needs for LED
- Thread starter Wizzlebiz
- Start date
bEelzeBosS
Well-Known Member
My problem with the VPD chart is if I followed it, especially later in bloom my buds would rot...and I have great air movement.
rkymtnman
Well-Known Member
according to that worthless chart, i'm supposed to run my room at 59F. lol. plants adapt.
twentyeight.threefive
Well-Known Member
Ok. Good luck. Lol
twentyeight.threefive
Well-Known Member
You'd want to increase your humidity to balance proper leaf temperatures and RH to be in the best VPD range. If you insist on not increasing your humidity and leave it at 35% that's fine, I'm not saying you won't have good results, just saying you could have better.
rkymtnman
Well-Known Member
where does CO2 levels in the room come into play on the VPD chart?
Nwtexan
Well-Known Member
This seems pretty easy to follow to me. I spent the last few days reading VPD charts and getting a bit of a grasp. I find it pretty helpful as a baseline for my grow and it helps to take out the fuzzy difference between newer more efficient LEDs and older HID's.
Makes total sense and nice to see some science behind it.
Seems to me that a lot of folks have methods that have worked for them. Technology is allowing many of us to maximize our conditions in ways that the average grower couldn't a few years ago.
I would love to see some studies implementing increased levels of CO2 and how that would shift this. I am assuming that it allows the plant to transpire at higher temps and humidity, thus increasing growth. I wonder if it is linear or shifts at a different rate/ Way past my pay grade
Makes total sense and nice to see some science behind it.
Seems to me that a lot of folks have methods that have worked for them. Technology is allowing many of us to maximize our conditions in ways that the average grower couldn't a few years ago.
I would love to see some studies implementing increased levels of CO2 and how that would shift this. I am assuming that it allows the plant to transpire at higher temps and humidity, thus increasing growth. I wonder if it is linear or shifts at a different rate/ Way past my pay grade
BBQtoast
Well-Known Member
Name and address, you just won some decomposing leaf.
rkymtnman
Well-Known Member
about a pound i hope!!
BBQtoast
Well-Known Member
Can we agree those charts are shit now.
Now I do insist on leaving my humidity at 35, the plants feedback now instructs stoma to adjust size and without effort nature has now moved me to a better water use efficiency the same as at a higher humidity.
Wizzlebiz
Well-Known Member
Thats true but whats grown on the equator won't do well in Siberia. Strains and conditions matter greatly.
BBQtoast
Well-Known Member
[/QUOTE]
It took 50 generations for a drug type to revert back to a wild type in tests.
Siberian strain might do well on the equator though, happened before true story.
It took 50 generations for a drug type to revert back to a wild type in tests.
Wizzlebiz
Well-Known Member
[/QUOTE]
Siberian strain might do well on the equator though, happened before true story.
It took 50 generations for a drug type to revert back to a wild type in tests.
[/QUOTE]
That I could see. I would think it would be easier to go from cold to hot instead of the reverse.
Siberian strain might do well on the equator though, happened before true story.
It took 50 generations for a drug type to revert back to a wild type in tests.
[/QUOTE]
That I could see. I would think it would be easier to go from cold to hot instead of the reverse.
BBQtoast
Well-Known Member
Siberian strain might do well on the equator though, happened before true story.
It took 50 generations for a drug type to revert back to a wild type in tests.
[/QUOTE]
That I could see. I would think it would be easier to go from cold to hot instead of the reverse.
[/QUOTE]
I read it acclimatized easy, it was in the history of its ancestry I read that bit where it changes in 50 generations.
It doesn't like the cold, Siberia probably produced a lot of hemp in summer, I'm not sure it ever domesticated these latitudes naturally.
It took 50 generations for a drug type to revert back to a wild type in tests.
[/QUOTE]
That I could see. I would think it would be easier to go from cold to hot instead of the reverse.
[/QUOTE]
I read it acclimatized easy, it was in the history of its ancestry I read that bit where it changes in 50 generations.
It doesn't like the cold, Siberia probably produced a lot of hemp in summer, I'm not sure it ever domesticated these latitudes naturally.
twentyeight.threefive
Well-Known Member
Your ignorance of science is laughable as well as your reading comprehension.
BBQtoast
Well-Known Member
I will agree there.
bernie344
Well-Known Member
My plants seem to get up at 27.5C room temp.
Star Dog
Well-Known Member
Yes that's what makes me think there is no best humidity it's down to the individual plants, we can't look a vpd chart and then suit a Siberian strain and an equatorial strain for example there's one ideal figure.
Imo statements like "I like 50% over 60% the buds are denser is nonsense imo.
I'm not suggesting there's no difference in laboratory condition or professional set ups, but most of us have a tent with loads of variables every crop, how can anyone say humidity is thee positive or negative is beyond me.
Wizzlebiz
Well-Known Member
That is very true. I grow strains like BC big bud due to its tolerance for high heat. Im sure there are strains that have genes that make them better in a low humidity environment or vice versa.
Thats a whole other monkey wreck thrown into the equations for sure.
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Humboldtcalikidd
Well-Known Member
I know humidity, dense fog, and early morning dew plays a big roll in my outdoor.Slowly evaporating before the morning sun hits them and fries the plant