M
mrdizzle
- 1,895
- 48
I'm going to be the first one here to say that I don't think your high humidity is helping you much.
The curl of your leaf edges indicates to me a transpiration issue. Often times a little extra Potassium goes a long way to assist this.
Your plants depend on evaporation to keep the leaves cool and if the humidity is high then the rate of evaporation will be low. This decreases transpiration, increases leaf temperatures, decreases stomata size, and as a result, decreases uptake.
Not that your plants look sick... But they certainly could look a little happier.
Also, Molds thrive in humid environments. Molds can grow at any humidity but 70% RH and 75 degrees F is damn near PERFECT conditions for mold to anchor in and start reproducing. I've been running my 1400w tent at 40% to 50% humidity with a lower risk of mold and what I consider to be happier plants.
Not to be a naysayer... But this whole high humidity thing is not what I would suggest to anyone, ever.
Seamaiden,
good mornin to ya, and thanks for stoppin by the fun lab. Can I get you a cappuccino?:)
Snowcrash,
thanks for stopping by and offering input.
I share the same theory as you in the leaf curl being a transpiration issue.
As far as the RH, my daytime isn't actually up to what's recommended in the article on VPD in max yield mag. Whether they are right or not is to be seen. They do seem reputable enough of a source. It just seems odd also that every green house that I have ever been in seems like 80% RH at least. I do have a lot of air moving around as well also to be safer. We shall see if it works or bites me in the ass in the long run. So far no signs of PM or bud rot anywhere. The extra Potassium could be definitely also be something. I have been trying to stick as close to the whole Canna program on this run, so I am not sure if I want to vary too much this run, just for future runs comparisons sake. The curl is not on some plants, minor on others, worse on a few. I always had attributed it to hot spots, which also result in pockets of low RH. My temp probe in the hotter areas had also confirmed the statistics. Up to 10 degrees warmer, and 10-15% lower RH. It seems to be a byproduct of the adjust-a-wing reflectors.
-TF:evilgrin0013:
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?