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Thoughts on light for seedlings

B

BR2K

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YYCannabis shared a fascinating video from Utah State University's Dr. Bruce Bugbee: https://youtu.be/ID9rE5JewVg . In his video, Professor Bugbee said that seedlings can take a tremendous amount of light (@ 26:45 in the video). Is cost the main reason why I see folks using CFL's when starting their seedlngs?
 
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I like CFLs in a 4 way arrangement, it causes limbs everywhere as light is on them from all sides!
Outside I am in direct sunlight from sprout. Unless I plant clones in direct sunlight,,,
 
All I use is a 29W full spectrum LED bulb on an adjustable table lamp...it works great...I save a ton of power for the first 2 weeks of the germination/seedling stage because i don't have to use my whole light panel.
 
You, YYCannabis, Dr. Bugbee and SoOrbudgal have inspired me to try using my 315LEC with a couple of my auto seeds. Probably WW, Northern Lights and Green Poison XL. I am interested in how my light will affect my seedlings. I should be moving to my new home within 30 days...
 
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4-23W, 65K cfl work great.
 

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8-12 inches from a T5 & 6-8 from 2 bright assed LED strips works for me. Utah St is one of the premier ag schools in the Country.... I'm prone to listen.
 
JDU said:
8-12 inches from a T5 & 6-8 from 2 bright assed LED strips works for me. Utah St is one of the premier ag schools in the Country.... I'm prone to listen.
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That's what I hear. Still, I agree with you all - I'll start with lower intensity light. I have a 2 ft T5 assembly from Home Depot. I also have some CFL bulbs but no acceptable lamp at the moment. With your recommendations and the GWE tutorial, I think I better take the safe route. Once my seedlings are established, Ill move up to my more powerful lights.
 
So when this thread hit I was in the perfect position for an experiment. The smaller plant is a day & a half older than the other. I put the youngest under the intense Mars Hydro 24in away. The other I left under the T5 12in away. They are both under the Mars now lol.
 

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Tryin clones under the Mars now. This batch is the wiltiest so we'll go with them.
 

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Aw-right! JDU started his experiment. I REALLY want to replicate Nebula Haze's grow "Seed to harvest" with my 315W LEC. This is the "How to grow up to 1lb" tutorial. I guess I'll try germinating all six of the free autos I got from Seedman. I've been reviewing "The Great Auto Showdown" and figure I'll be losing several, at least. If I lose them all, I'll just start the Photos I actually ordered. I'm waiting on my home (should start moving in in a week or so) and some 3 gallon smart pots.
 
I think they are greatest seed starter ever....I use 6 in a 7 way splitter for about 3 weeks. 23w 6500k and when I walk into the room, I can’t see for a minute or so due to the flash of light when I open that door

I've got to add, if you're following that YouTube video, cost is not something you’re overly concerned with as you are looking to create the best outcomes possible
 
Farmall said:
I think they are greatest seed starter ever....I use 6 in a 7 way splitter for about 3 weeks. 23w 6500k and when I walk into the room, I can’t see for a minute or so due to the flash of light when I open that door

I've got to add, if you're following that YouTube video, cost is not something you’re overly concerned with as you are looking to create the best outcomes possible
Click to expand...

I'm following Dr. Bugbee and Nebula Haze within my limited means. Considering that a trip to my closesest dispensary is an entire day's trip and the cost of the bud itself, I consider this a wise investment. While GWE is incredible, I'm learning just as much from you regular contributors - THANKS!
 
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In the last couple of years I have played around with several ways to (Light) and start seeds. Hands down, this has been the most consistent and healthy starts I tried different ways lately and was fussing at the breeder for poor starts. Went back to this and for me.. works great.
 

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I'd have to say I agree with the study. The one under the Mars continues to dwarf the one under a T5.
Not only can seedlings handle brighter & intense light- they thrive on it.
 

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were these seedlings the exact same strain? You didn't mention that. cannabis can be quite fickle. I started 3 different strains all at the same time all the same conditions. one of the seeds took 3 days longer to sprout than the others yet in a week it was by far twice the size of the other two. Ironically as time went on it turned out to be the smallest plant but the fattest buds at least two weeks earlier that the others, again all under the same conditions.
 
It’s also near impossible to determine whether or not the three seeds are from the same genetic parents.. which in that case would yield many different development patterns.Genetics controls all the chips in the end
 
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