1 Plant not strechting/very bushy

[Waira]

:smoking: What's up Cy'?! No defc. issues 't'all here mate,... in fact, mixed into Stunted comic musings -- is some good diagnostics,... my best guess as to what's behind the ultra squat build is either something genetic ( seeds are a dice roll), or overly high light intensity causing very short internodal spacing,... to the latter, I do see some possible signs of heat/light stress, granted the HPS is lousy for diagnostics when looking at leaves/buds.... note the rolled edges/teeth along leaves margins, and the light color of the plant (could just be the lighting/camera, or strain)...HPS can be fierce for both heat and light, if too close,... what the wattage, and distance to plant tops? T, RH? Is the air circ' really breezy? All of these things, often in some combo, can make for potential light/heat/water transpiration-gas exchange stress on the leaves,... but with just the rolled edges and light color, I'm leaning toward milder light/heat stress alone,...

 

[DarthMaul]

:smoking: What's up Cy'?! No defc. issues 't'all here mate,... in fact, mixed into Stunted comic musings -- is some good diagnostics,... my best guess as to what's behind the ultra squat build is either something genetic ( seeds are a dice roll), or overly high light intensity causing very short internodal spacing,... to the latter, I do see some possible signs of heat/light stress, granted the HPS is lousy for diagnostics when looking at leaves/buds.... note the rolled edges/teeth along leaves margins, and the light color of the plant (could just be the lighting/camera, or strain)...HPS can be fierce for both heat and light, if too close,... what the wattage, and distance to plant tops? T, RH? Is the air circ' really breezy? All of these things, often in some combo, can make for potential light/heat/water transpiration-gas exchange stress on the leaves,... but with just the rolled edges and light color, I'm leaning toward milder light/heat stress alone,...

Thanks everyone for the answers I was out for a few days so i could only answer now:

Conclussion: I think you are right Waira about the heat issue because I have up to 30 degrees sometimes. However, I don't understand why all plants show no sign of heat issue only this one does. Is it maybe more sensitive to heat?

Setup: 400W HPS + 400W Mars 2 + 300W older LED at the same time, carbon filter connected with ducting to the 400w hps which is connected to the TD-350/125 Exhaust fan. 1 4" intake fan

Distance: is 30 cm from the mature plants 60 for the short ones. 50cm LED.

Room Temperature : 24 degrees

Grow Tent Temp: 28-30 degrees

rH: 40-50

Question: I made some pics of the setup and would like to know what I need to do to bring the temps back down.
More exhausting air? Or blow in air conditioner duct +intake fan? What is better?

Exhaust Fan Link: http://www.solerpalau.com/td-350-125-silent-ecowatt.html

 

[DarthMaul]

X

Any chance that you can take a look at what I wrote? Going to the store tomorrow I want to know if its better to buy more extraction fan or rather put another intake fan connected to the AC?

Thanks

 

[hank]

Looks a little high on the N. She maybe the type that does not need much.

Good growing.

 

[DarthMaul]

I fixed the heat issue from 30 C to 26C because I installed a 6" intake.
The tent is a bit blown up from the extra air it gets now, but at least it fixed the issue.

Thanks for the helps guys

 

[Waira]

...sorry mate! frankly, you likely know more than I do-- I'm an outdoor grower- LOL! You can always ask around at the right forum sections with stuff like this,... cause and effect I can help with, but tent growing is not in my forte',...