The far red thread

Old ninja

Active Member
Both leads to better yields at the end of the year! Let's assuming you save a week every run you could probably make an extra run every year. So in the ends it's up to you what you prefer.
Yes, I agree. But as I read here speeding up flowering leads to less yield/week on average. You lose more on yield then you can gain on time. I don't know, I'm asking. I think the difference is not much at the end.
Youd have to try out what works for you i guess.
It's a closet grow, one plant at a time, so I can't compare
 

The Dawg

Well-Known Member
There was a grow test here, Cri80 vs 90. Under Cri90 plants grew faster, but the yield was much less, so it didn't worth it.
That Was My Grow And The 1st Grow I Defoliated The 90 Cri In The 5th Week Of Flower Which Stunted Her. I Did Not Touch The 80 Cri Plus I Ran The 80 2 Weeks Longer. Now The 2nd Grow The 90 Cri Out Yielded The 80 And So Far With My Colombian Ripper Clones The 90 Is Once Again Kicking The 80 Cri Ass :hump:

https://www.rollitup.org/t/dhp-presents-citizen-cob-1812-3500k-80cri-vs-1812-3500k-90-cri.932990/
 

Old ninja

Active Member
That Was My Grow And The 1st Grow I Defoliated The 90 Cri In The 5th Week Of Flower Which Stunted Her. I Did Not Touch The 80 Cri Plus I Ran The 80 2 Weeks Longer. Now The 2nd Grow The 90 Cri Out Yielded The 80 And So Far With My Colombian Ripper Clones The 90 Is Once Again Kicking The 80 Cri Ass :hump:
WOW, good to know. Was it the more far red or simply the more red, in your opinion?
I'm reading your thread now.
Any advice how to supplement with far red?
 
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GroErr

Well-Known Member
In My Grow's It Was The Shift To More 660 Red. Now @GroErr Has Did Some Work With The 660's In The Am And The 730's At Light's Out On A 11.5/12.5 Light Schedule With Great Success :hump:
Cheers @The Dawg :) I stepped down from 12.5/11.5 and tried a couple of rounds at that, then 12/12, then 11.5/12.5. All with 660nm for 12 minutes before lights on, and 12 minutes of 730nm at lights out. I settled at 11.5/12.5 as that knocked an average of a week off my phenos (clones were used to gage the effects/time for consistency) but really didn't notice any loss in yields. 1 week off is almost an extra round in a year, not a bad thing. This below is my current round with 10x 2gal, 3 strains all from seed at day 42/6 weeks.

All-Day42-1.JPG
 
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Old ninja

Active Member
I stepped down from 12.5/11.5 and tried a couple of rounds at that, then 12/12, then 11.5/12.5. All with 660nm for 12 minutes before lights on, and 12 minutes of 730nm at lights out. I settled at 11.5/12.5
Any difference in plant height/stretching?
 

GroErr

Well-Known Member
Any difference in plant height/stretching?
You do get more stretch, varies by strain like most things but definitely some extra stretch. That can be a a good or bad thing depending on the strain and even how you veg. I manage that a bit by using 5700k for clones/seedlings, then 4000k to veg, then 3500k to flower which helps a bit. You could also run 12/12 for the first 2 weeks, then switch to 11.5/12.5 but I haven't tested the results of that scenario.
 

Old ninja

Active Member
Is this the far red or the longer nights that cause the more stretching?
And Eod is used for shortening the night period. But at 11.5/12.5 why do you need that?
 

GroErr

Well-Known Member
Is this the far red or the longer nights that cause the more stretching?
And Eod is used for shortening the night period. But at 11.5/12.5 why do you need that?
Good questions, I have to circle back to trying 11.5/12.5 on it's own without initiators to determine whether they're making the bigger difference in combination with the shorter cycle time, or simply 11.5/12.5 for the main lights is the bigger contributor to knocking time off. I'm running a bunch of seeds right now for pheno hunts, when I get a round with clones where I know what to expect I'll be shutting off the initiators to see what the effects are. In the meantime I'm not complaining ;)
 

Randomblame

Well-Known Member
If your plants still get 30-35Mol/day you can shorten the daylength by a certain time. You can compensate shorter day length with slightly more light or shorter distance to the canopy.
 

Old ninja

Active Member
If your plants still get 30-35Mol/day you can shorten the daylength by a certain time. You can compensate shorter day length with slightly more light
I know, but I'm a bit sceptic. Running 5 miles in 1 hour is easier than in 50 minutes. I think it's true for the plants too
 

Randomblame

Well-Known Member
As much as she like. When she starts to look droopy at the end of the day it's too much. For auto's 18-20h with 400-500μMol/s/m² seems to be very efficient.
 

Randomblame

Well-Known Member
I know, but I'm a bit sceptic. Running 5 miles in 1 hour is easier than in 50 minutes. I think it's true for the plants too

Yepp, it is. But plants gather light during the day and utilize it at night, and as long as they have not reached the point of saturation you can increase the intensity. Of course not infinite, but plants can compensate well. And growth is not a race. A bodybuilder who daily eats 6000kal. probably has faster muscle growth like one that only eats 3000kal.. It's about the collected photons and the stored energy.
 
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