Home | Community | Message Board


Vaposhop
Please support our sponsors.

Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

Welcome to the Growery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Amazon Shop for: HPS

Jump to first unread post. Pages: 1
OfflineChillWillis
old school fool


Registered: 06/14/09
Posts: 2,212
Last seen: 1 year, 2 months
Lighting - The more the merrier?
    #323832 - 11/30/09 07:30 PM (7 years, 11 days ago)

I currently have a 3ft3 floweing room being supplied with 16,000 lumens via 150w HPS. If I throw a 17w t8 7800k and a 15w t8 4200k into the room with the HPS on the same hours will it increase yield, shorten flowering time or do anything beneficial?


--------------------

It's not a war on drugs, it's a war on personal freedom.


Post Extras: Print Post  Remind Me! Notify Moderator
Offline81renaissance
Coachella '13 KKOTY
Male


Registered: 04/20/08
Posts: 4,181
Loc: State of Mind Flag
Last seen: 4 months, 27 days
Trusted Cultivator
Re: Lighting - The more the merrier? [Re: ChillWillis]
    #323837 - 11/30/09 07:32 PM (7 years, 11 days ago)

More light=better yield up to the point of diminishing returns (which you won't even get close to with the lights you mentioned).


--------------------
"So it goes."
-Kurt Vonnegut


BlueBerry_Swisher said:I want French fries. No, I want a penis French. Thank you. I'm so excited. I can not contain myself. Now I eat chocolate. It is so good. I'm trying to rub it all over myself. And then lick. Now I need a hot shower. The end.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleHarry_Ba11sachM
cannoisseur
 User Gallery


Registered: 04/20/08
Posts: 11,753
Loc: Nepal Flag
Trusted Cultivator
Re: Lighting - The more the merrier? [Re: ChillWillis]
    #323839 - 11/30/09 07:32 PM (7 years, 11 days ago)

what's up with all these people giving us dimensions in cubic feet? give us the floor dimensions in square feet if necessary, but a standard LxWxH measurement is best.

that being said, it will likely increase yield. flowering time is determined by the genetics mostly.


--------------------


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSmOakland
Now with Grow!
Male User Gallery


Registered: 05/31/09
Posts: 2,653
Loc: Oaktown to NOLA
Last seen: 9 hours, 23 minutes
Re: Lighting - The more the merrier? [Re: Harry_Ba11sach]
    #324011 - 11/30/09 09:53 PM (7 years, 11 days ago)

Those floros are hardly significant but they mos def will not hurt.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleTriptonic
Male Arcade Champion: Spider Jump


Registered: 06/14/08
Posts: 15,581
Loc: Flag
Re: Lighting - The more the merrier? [Re: ChillWillis]
    #324021 - 11/30/09 09:58 PM (7 years, 11 days ago)

Yes the more the merrier more light= denser bud, healthier plants. But you have to account for the heats of the lights.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineLucid
Monster Plant Creator
Male User Gallery


Registered: 07/18/08
Posts: 1,082
Loc: Canada-ish. Flag
Last seen: 4 months, 17 days
Re: Lighting - The more the merrier? [Re: Triptonic]
    #324036 - 11/30/09 10:09 PM (7 years, 11 days ago)

I concur with trip, just make sure you account for any temp changes.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineChillWillis
old school fool


Registered: 06/14/09
Posts: 2,212
Last seen: 1 year, 2 months
Re: Lighting - The more the merrier? [Re: 81renaissance]
    #324039 - 11/30/09 10:10 PM (7 years, 11 days ago)

I have 2 more of the 17w and 1 more of the 15w. Throw them in too?
Genetics are random bag seed.


--------------------

It's not a war on drugs, it's a war on personal freedom.


Edited by ChillWillis (11/30/09 10:12 PM)


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineLucid
Monster Plant Creator
Male User Gallery


Registered: 07/18/08
Posts: 1,082
Loc: Canada-ish. Flag
Last seen: 4 months, 17 days
Re: Lighting - The more the merrier? [Re: Triptonic]
    #324043 - 11/30/09 10:13 PM (7 years, 11 days ago)

double post.


Edited by Lucid (11/30/09 10:13 PM)


Post Extras: Print Post  Remind Me! Notify Moderator
Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
Re: Lighting - The more the merrier? [Re: Lucid]
    #324899 - 12/01/09 11:02 PM (7 years, 10 days ago)

Light Intensity increase will cause an increase in yield up to a point...one needs to make sure that the temperature is kept in check and in order to bump up the reaction rate you need to begin increasing the CO2 concentration.

Also, stagnant air is unacceptable in high light intensity. RuBisCO, or Ribulose-1,5-bisphosphate carboxylase oxygenase, the enzyme responsible for CO2 fixation, will begin to fix Oxygen in times of low CO2 concentration or high O2 concentration. This produces a 2 carbon product that cannot be utilized by the calvin cycle, drains existing sugars from the plant during the recovery of the RuBisCO enzyme and salvaging of the wasted carbon, produces ammonia during the salvaging process which then evaporates and leaches nitrogen from the plant, and produces a toxic intermediate chemical during the salvaging process that can be deadly in high concentration, and inhibit photosynthetic reactions in low and high concentrations.

Also...beyond the high end of the recommended lighting requirements is a waste of money and electricity since most of the excess light is absorbed by accessory pigments and converted to heat...

hope this helps, please correct any misinformation i might have provided,

peace,
agmotes165


--------------------
“The Universe is under no obligation to make sense to you” -NDT


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineChillWillis
old school fool


Registered: 06/14/09
Posts: 2,212
Last seen: 1 year, 2 months
Re: Lighting - The more the merrier? [Re: agmotes165]
    #325093 - 12/02/09 01:01 PM (7 years, 9 days ago)

As a closet grow the only ventilation the area gets is when I leave the door open with a fan blowing into the other fans in the grow area.

Is this what's causing the stem parts of the leaf and surrounding stems to be purple?


--------------------

It's not a war on drugs, it's a war on personal freedom.


Post Extras: Print Post  Remind Me! Notify Moderator
Invisibleagmotes165
That Guy
Male


Registered: 08/12/08
Posts: 1,552
Loc: Southeastern U.S.
Re: Lighting - The more the merrier? [Re: ChillWillis]
    #325113 - 12/02/09 01:37 PM (7 years, 9 days ago)

I have the same setup as you and I have the same thing happening where my stems are a purple-red...not really sure what it means...

peace,
agmotes165


--------------------
“The Universe is under no obligation to make sense to you” -NDT


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineChillWillis
old school fool


Registered: 06/14/09
Posts: 2,212
Last seen: 1 year, 2 months
Re: Lighting - The more the merrier? [Re: agmotes165]
    #325161 - 12/02/09 02:55 PM (7 years, 9 days ago)

Quote:

m3kgt said:
Most of the time redish purple stems are not a cause for too much concern but the plants need to be watched for any other signs that could match up to a deficiency.  Purple discoloring of the main stems, leaf stems, and the veins of the undersides of the leafs could be caused by a few things and could also just be normal genetics. Most of the time I have found it to be cause by dark period temps to be dropping down too low (more than 15 degrees F).  A phosphorus (P) deficiency can also be the cause if the leaves are starting to turn dark with a bluish green tint.  If interveinal yellowing is starting to occur along with the purpling stems then it could be either a Nitrogen (N) or Sulfer (S) deficiency. If the above is not occuring everything is fine. 



http://www.growery.org/forums/showflat.php/Number/78093#78093


--------------------

It's not a war on drugs, it's a war on personal freedom.


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

Amazon Shop for: HPS

Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

Similar ThreadsPosterViewsRepliesLast post
* 18 vs 24 Hours of Light in the Vegative Cycle
( 1 2 3 all )
erb 10,634 51 05/12/09 06:33 PM
by Yrat
* Would this fan eliminate heat problems from my light? erikm 1,219 10 08/24/09 10:39 AM
by Yasi
* Using strip lights dang 1,415 12 12/03/08 05:37 PM
by mhbound
* UVB Lights
( 1 2 3 all )
coda 34,224 57 06/02/13 02:23 PM
by Hawksresurrection
* FULL SPECTRUM 900 LED GROW LIGHT PANEL 110V Red Blue Calibrate 6,587 6 09/23/08 01:39 PM
by freepain
* Salvaging a moldy bud?
( 1 2 all )
PsilocybinMike 9,397 23 10/15/08 09:42 PM
by coda
* flourescent lights ismokeweed 1,342 9 02/19/09 05:20 PM
by mister
* About Lights Picklez 4,181 1 07/04/09 02:30 AM
by captainmurphie

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: FurrowedBrow, Magash, Dr. Siekadellyk, phychotron
1,255 topic views. 2 members, 81 guests and 77 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:

Please support our sponsors.

Copyright 1997-2016 Mind Media. Some rights reserved.

Generated in 0.042 seconds spending 0.003 seconds on 14 queries.