Temp and RH during Flower Stage??

[J.C.grower]

hey guys , it is week 2 of 12/12 in my cab and the ladies are looking wonderful i just received my Hygrometer in the mail and i was wondering what the ideal temp and RH should be during the flowering stage.?
Stay fligh
JC

 

[Hydrosun]

Depends on strain, system (hydro v. soil), and whether or not you use CO2.

40% RH in hydro for me is great. 80 degrees no CO2 85 degrees w/ CO2, 68 degree night time temps.

 

[TribalSeeds]

Keeping it warm 70there at night in the first couple weeks can reduce shock and stretch. You can gradually lower it to 65, @ around 60 at the end to bring out some colors.

 

[mcfly420]

spurr - I think using 1-1.25 kPa is a good goal for cananbis growers because reaching 0.8-1 kPa isn't easy. In terms of RH, molds and other fungi are most worry at >75-80% RH, and for VPD, < 0.2 kPa is danger area for molds and other fungi, etc."

VPD and nutrients absorption
https://www.icmag.com/ic/showthread.php?t=195058

Humidity and Vapor Pressure Deficit
http://urbangardenmagazine.com/2010/07/plantworks-part-1-humidity-and-vapor-pressure-deficit/

 

[J.C.grower]

Depends on strain, system (hydro v. soil), and whether or not you use CO2.

40% RH in hydro for me is great. 80 degrees no CO2 85 degrees w/ CO2, 68 degree night time temps.

i am using soil. no CO2, curently the meter says 26.2 degrees C. and RH at 40 %. hows this?

JC

 

[softyellowlight]

spurr - I think using 1-1.25 kPa is a good goal for cananbis growers because reaching 0.8-1 kPa isn't easy. In terms of RH, molds and other fungi are most worry at >75-80% RH, and for VPD, < 0.2 kPa is danger area for molds and other fungi, etc."

VPD and nutrients absorption
https://www.icmag.com/ic/showthread.php?t=195058

Humidity and Vapor Pressure Deficit
http://urbangardenmagazine.com/2010/07/plantworks-part-1-humidity-and-vapor-pressure-deficit/

From prior experience, I would be worrying about powdery mildew WELL before 75% RH.

 

[mcfly420]

carbon filters stop working around 60% anyways