Check out some of my gro journals, I’ve had some extremely thick indica dominant looking leaves change into thin sativa leaves, looked like two different plants stacked on each other lol. What I’m saying is it’s extremely early and I’d bet your plant changes as it grows !!
Am I growing a runt? Or is this caused by too much light?
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From what I can find its 50% ruderelous. that's the cause. For the squat look.
Also, Dinafem says 9 to 16 plants per sq meter to hit 500 gpm... that alone says small plant.
I'm a new grower, but I learned the hard way that I was hitting my plants with way too much light -- the result being that I have two squatty little bonsai looking plants that had some light burn. Nodes are stacked really nicely, but I definitely could have gotten a lot more vertical growth I think had I understood the concept of DLI (Daily Light Integral). Below is the schedule I'm kind of following now (pulled it from some grower I found on Grow Diaries that grows some incredible looking autos). Also, there's an iPhone app called Korona that you can use to test your DLI. If you use that app, you need to put a little piece of white paper over the camera when you're doing your readings...or you won't get the correct data. And make sure you input the number of hours you're running your lights per 24. If you run an LED at 700 umol on a 24/0 schedule your DLI is going to be a heck of a lot higher than if you're running at 700 umol on an 18/6 schedule.
The whole concept of DLI (at least as this new grower understands it) is that a plant can only utilize so much light during a 24-hour period, and anything in excess of that either has no positive effect on the plant (and thus you're paying for electricity that you don't need) or has a negative effect.
All that said, I think your plant looks great for 2 weeks in...but you may want to familiarize yourself with DLI going forward. Good luck!!
AUTO FLOWER LED LIGHT INTENSITY
Recommended LED PPF/PAR Values / DLI Based on 20 hrs. of light.
Seedlings 150 - 200 umol / DLI 10.80 - 14.4 moles per day
Veg up to 9" 450 umol / DLI 32.40 moles per day
Early bloom 500 umol / DLI 36.00 moles per day
Mid bloom 650 umol / DLI 46.80 moles per day
Late bloom 750 umol / DLI 54.00 moles per day
Ripen 400 umol / DLI 28.80 moles per day
*** Use extreme caution going 700 umol or higher @ 20 hrs/day this could cause leaf burn***
PPF measures the total amount of PAR emitted from the lighting system per second.
PAR is the amount of light in the 400 - 700 nm color spectrum that can actually be used by the plant.
PAR does not measure the amount of UV and Infrared that plays a part in trichome formation and cell quality.
DLI is the total amount of PAR the plant has received per day
Our goal is to have a minimum DLI in the 38-40 mole range when it bloom.
www.waveformlighting.com
horticulturelightinggroup.com
The whole concept of DLI (at least as this new grower understands it) is that a plant can only utilize so much light during a 24-hour period, and anything in excess of that either has no positive effect on the plant (and thus you're paying for electricity that you don't need) or has a negative effect.
All that said, I think your plant looks great for 2 weeks in...but you may want to familiarize yourself with DLI going forward. Good luck!!
AUTO FLOWER LED LIGHT INTENSITY
Recommended LED PPF/PAR Values / DLI Based on 20 hrs. of light.
Seedlings 150 - 200 umol / DLI 10.80 - 14.4 moles per day
Veg up to 9" 450 umol / DLI 32.40 moles per day
Early bloom 500 umol / DLI 36.00 moles per day
Mid bloom 650 umol / DLI 46.80 moles per day
Late bloom 750 umol / DLI 54.00 moles per day
Ripen 400 umol / DLI 28.80 moles per day
*** Use extreme caution going 700 umol or higher @ 20 hrs/day this could cause leaf burn***
PPF measures the total amount of PAR emitted from the lighting system per second.
PAR is the amount of light in the 400 - 700 nm color spectrum that can actually be used by the plant.
PAR does not measure the amount of UV and Infrared that plays a part in trichome formation and cell quality.
DLI is the total amount of PAR the plant has received per day
Our goal is to have a minimum DLI in the 38-40 mole range when it bloom.
Daily Light Integral (DLI) Calculator | Waveform Lighting
With a PPFD input value and total hours of use per day, Daily Light Integral (DLI) values can be calculated using our online calculator.
HORTICULTURE LIGHTING METRICS PAR PPF PPFD DLI PPF/W
Lux/Lumens fail to correctly account for Blue and Red wavelengths, which are important light wavelengths for plants. HORTICULTURE LIGHTING METRICS PAR PPF PPFD DLI PPF/W
horticulturelightinggroup.com
Hey man, this is an amazing post with very valuable info in it, thanks a lot!
I downloaded an Android app that measures both PPFD and DLI. In my case the app reports 513 PPFD and 36 DLI (based on 20 hours of light) at canopy level with the light fixture being 30 inches away. So, when I compared my readings with the values from your graph above, it turned out that my light is suitable for a plant that is in early bloom, and that is way too bright for a seedling. However, I don' know if this excessive brightness is harming my litte plant or not... The seedling seems to be growing without any problems and is one foot in diameter after 14 days from sprout, but its major problem is that it is very short and stocky... This is why I decided that it could be a runt, but who knows, this stockiness in the early stages could be a good thing.
I will leave it the fuck alone for now and will just wait another week or so before I decide what to do with the light intensity.
PS:
My hmemade light fixture surprised me with its brightness and good PPFD readings. Not too shabby for a DIY ghetto build! All you need is 15 regular $0.80 9W 6500K LED bulbs with their globes removed and you will be in business.
I have another 15 bulbs with a 2700K color profile that I will be using for the flowering stage.
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Yeah you look like you’re in good shape. That plant should be stretching in the next couple weeks!
16 days from sprout.
It is now 4.5 inches tall or 11.5 centimeters.
I am starting to think that this plant will grow tall eventually and I no longer think that it is a runt.
I read that autos explode with growth after they reach 18 to 24 days from sprout, so we still have plenty of time.
Also, let's not forget that the plant will (hopefully) grow even taller in flower.
Any ideas how many times larger it will become?
It is now 4.5 inches tall or 11.5 centimeters.
I am starting to think that this plant will grow tall eventually and I no longer think that it is a runt.
I read that autos explode with growth after they reach 18 to 24 days from sprout, so we still have plenty of time.
Also, let's not forget that the plant will (hopefully) grow even taller in flower.
Any ideas how many times larger it will become?
Looks normal for this age. She's focusing underneath right now. Day 24 onward you'll see significant growth til flower. she's fine in my opinion
Thank you for your reply, Boognelson87.
I can't wait to see her big and tall.
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