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Old 10-23-2014, 06:41 PM #1
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Cannabis, the effect from increasing photo-period by only 15 or 30 min.

Let's discuss this, Please
I don't want to muck up the other threads.
But this is Ground breaking news for me.
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Old 10-23-2014, 11:39 PM #2
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https://www.gwpharm.com/uploads/final...isdjpotter.pdf
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Old 10-24-2014, 06:24 PM #3
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up or down there is a lot of info out there, most notably articles/books by DJ Short where he explains that you can bring out indica features using a 13/11 schedule and sativa features with an 11/13. He also says to go plus or minus in 15 min increments to find sweet spots for various genetic traits.

For the last year I have run 11:20/12:40 to get sat traits to show and it works great. I just recently switched to a 6.5 hours on, .5 off, 4 on, 13 off schedule to see if I can lesson the effects of midday depression.

and don't forget the gaslight 12/1 veg lighting
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Old 10-24-2014, 07:41 PM #4
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That claim by DJ about making NLDB into WLDB (and vice versa) by changing photoperiod is total horse pucky. As are lots of things he claims. In terms of growing plants I would suggest taking what he claims with a grain of salt. He's good at breeding, but he makes crazy claims about growing.
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Old 10-24-2014, 08:01 PM #5
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That claim by DJ about making NLDB into WLDB (and vice versa) by changing photoperiod is total horse pucky. As are lots of things he claims. In terms of growing plants I would suggest taking what he claims with a grain of salt. He's good at breeding, but he makes crazy claims about growing.
not sure what you mean by NLDB into WLDB? but I have played with the timings for over 2 years and have seen results similar to what he talks about. I also breed and make crazy claims about growing lol most folks think I'm nuts but I have pictures that show it happened. I pretty much experiment non stop
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Old 10-24-2014, 08:02 PM #6
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That claim by DJ about making NLDB into WLDB (and vice versa) by changing photoperiod is total horse pucky. As are lots of things he claims. In terms of growing plants I would suggest taking what he claims with a grain of salt. He's good at breeding, but he makes crazy claims about growing.

have you used his information within the proper context, say testing hybrid progeny of indica/sativa lineage with those techniques?

im sure you haven't

when you do take some pictures and show us hes wrong
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Old 10-24-2014, 08:03 PM #7
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not sure what you mean by NLDB into WLDB? but I have played with the timings for over 2 years and have seen results similar to what he talks about. I also breed and make crazy claims about growing lol most folks think I'm nuts but I have pictures that show it happened. I pretty much experiment non stop
narrow and wide leaf drug type

a newly adopted acronym cause the weed nerds are trying to be cool like computer geeks

trust me it gets real old real quick

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Old 10-24-2014, 08:10 PM #8
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Not sure if thats what dj meant... I think he saying it will bring out those sativa traits more with the 11 13 cycle vs a 12 12 cycle. Not make a indica grow like a sativa.... just the way I read it.....
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Old 10-24-2014, 08:20 PM #9
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It's my understanding, and maybe I'm wrong, that DJ was referring to making for example, WLDB into NLDB, that is, the leaves would change, too. Like poof! Now it's a new genotype due to a photoperiod change.

If that's not the case then I stand corrected about that specific claim of his, though I'm not sure that's not the case. I will wait to be proven wrong by someone who can post his words in full context. It would help to remove the ambiguity of his claims.

Regardless, I provided science to show what happens in some cases, and from my reading it's not what DJ is claiming...
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Old 10-24-2014, 08:28 PM #10
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not sure what you mean by NLDB into WLDB? but I have played with the timings for over 2 years and have seen results similar to what he talks about. I also breed and make crazy claims about growing lol most folks think I'm nuts but I have pictures that show it happened. I pretty much experiment non stop
WLDB is "wide leaflet drug biotype," which is a much more correct term for the "indica" genotype than the term "indica." NLDB is "narrow leaflet drug bioptype," for "sativa," for the same reason as before.

This relates to preference for accuracy in terminology as it relates to the species debate for the genus Cannabis.

Currently the seeming generalized consensus among researchers is the genus Cannabis has but one species: sativa. And all the distinctions made are of different genotypes from the same species. Now, this could prove to be untrue, but right now that doesn't seem to be the case. Either way, using NLDB and WLDB is fitting, even if there is more than one species in the genus Cannabis.

And I'm not claiming photoperiod and flowering duration (days) don't affect the quality (and quantity) of the final flowers, they sure do. Just not to the degree DJ seems to claim in certain cases.
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