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 snufkin
Registered: 10/14/08
Posts: 99
Last seen: 2 months, 11 days
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 Diagnosis needed 
#351888 - 01/22/10 12:26 PM (6 months, 3 days ago) |
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Howdy fellow weeDIYies!
Patient is a 19 day old feminized seed GHS Cheese plant. The symptoms are interveinal bleaching/discoloring of older leaves. First spotted a little more than a week ago, the discoloration progresses rather slowly. New growth looks normal. pH values are unknown due to instrument malfunction, will be replaced ASAP. No fertilizer has been used yet nor has water been pH corrected. This soil formula, as well as the water source, has supported one other grow of two plants without vegetative-phase problems.
Other stats; RH is 50%. Temperature does not exceed 30°c. The grow cab has active intake and outtake as well as a circulation fan this is on most of the time. I'm using 1x125W 2700K + 2*36W 6500K CFL lights on a 20/4 schedule.
The symptoms do not exactly match any nutrient deficiencies that I know of, and I lent my copy of Jorges Bible to a friend.
Responses with helpful intent welcome 
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Grows: 1 2
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coda
Registered: 04/20/08
Posts: 3,830
Last seen: 11 hours, 31 minutes
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Re: Diagnosis needed [Re: snufkin]
#351983 - 01/22/10 04:28 PM (6 months, 3 days ago) |
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Well, it's entirely possible you're suffering from a lockout right now which is preventing your plant from uptaking any nutrients from the soil. If this happens the plant will draw the nutes it needs from its leaves (causing the yellowing).
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MFDoom666: sobriety kills my buzz every time.
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Sgt. Smoke
File up and smoke down!
Registered: 09/06/09
Posts: 43
Loc: Classified
Last seen: 2 months, 17 days
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Re: Diagnosis needed [Re: coda]
#351997 - 01/22/10 05:00 PM (6 months, 3 days ago) |
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Older leaves tend to yellow and fall off even if everything is dialed. It naturally sheds so to speak. If she's 19 days old she's probably used the stored nutes within her and is looking for some food. Get her some food soon. Other than that she looks awesome.
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L.O.B.
LEGION OF BUD
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DrGreenThumb
Registered: 08/09/08
Posts: 427
Loc: More North than U!
Last seen: 13 days, 11 hours
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Re: Diagnosis needed [Re: Sgt. Smoke]
#352068 - 01/22/10 08:17 PM (6 months, 3 days ago) |
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I think she looks absolutely BEAUTIFUL IMO. It sounds to me like you have a lot of light on her. Plants that get a lot of light use MORE nutrients. My suggestion is to start feeding right away, which is exactly what Sgt. Smoke said.
When I switched from regular shop lights to Overdriven ones, I had the same symptoms. Feed right away with a fertilizer high in Nitrogen and I think you'll see a difference. Keep us updated. 
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“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” -Dr. Seuss
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snufkin
Registered: 10/14/08
Posts: 99
Last seen: 2 months, 11 days
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Update as requested. She's actually doing very well from what I can tell although there is still some interveinal chlorosis. I started feeding her and had a good response. LST was applied shortly after this photo was taken 
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Grows: 1 2
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DrGreenThumb
Registered: 08/09/08
Posts: 427
Loc: More North than U!
Last seen: 13 days, 11 hours
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Re: Diagnosis needed [Re: snufkin]
#355663 - 01/30/10 07:23 PM (5 months, 26 days ago) |
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Good shit. That's what I like to see. If you ask me she recovered pretty quick from the discoloration. It's only been 8 days from the first post. She should only look better from here on out, given everything else goes OK. Nice job with the LST too BTW. I want to see the rest of this one; please keep us posted. 
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“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” -Dr. Seuss
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snufkin
Registered: 10/14/08
Posts: 99
Last seen: 2 months, 11 days
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I'll probably flush her and flower in the end of the week depending on how she looks then. Do you think she will be big enough to not let that CFL light go to waste?
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Grows: 1 2
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 Magash
Da Bud Guru
Registered: 04/21/08
Posts: 2,001
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Re: Diagnosis needed [Re: snufkin]
#358282 - 02/06/10 12:09 AM (5 months, 20 days ago) |
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Looks good check the soil ph. 
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snufkin
Registered: 10/14/08
Posts: 99
Last seen: 2 months, 11 days
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Re: Diagnosis needed [Re: Magash]
#371375 - 02/23/10 08:27 AM (5 months, 2 days ago) |
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Two weeks into flowering. I had read that this strain (the GHS/BB version at least) did not stretch much but I didn't anticipate this! It's just barely filling out the space.
    
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Grows: 1 2
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DrGreenThumb
Registered: 08/09/08
Posts: 427
Loc: More North than U!
Last seen: 13 days, 11 hours
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Re: Diagnosis needed [Re: snufkin]
#372231 - 02/24/10 06:10 AM (5 months, 1 day ago) |
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That is going to be absolutely awesome when it's in full flowering. It should fill out a lot more.
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“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” -Dr. Seuss
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