Small Buds in week 6 (GDP)

KAT-AL-LYST said:
See, this is the thing, I was at 700 PPFD. I didn't want to go higher because I'm not supplementing with C02. Im going to go and take a reading now, (albeit, utilizing my phone's sensor, and an app I found, but it's all I have). Ill post it here when done.
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700 aint nothing bro, you can push it to 950 easy with no C02..just keep feeding them because they will grow faster/fatter under them par readings
 
OK, so my leave temp is 20.3 degrees C on leaves that are 700-800mm from light. And the PPFD map is as follows @315W draw.

The two-meter pics are from directly under fixtures, and at bud hight.
 

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Moflow said:
Your lights need to be closer to the plants.
You need ~ 800 ppfd in flower.
Here is a par map for different hanging heights with a Phillips 3100k CMH
Your lights are 24" - 600mm away from plants and they're dimmed to 215 watts.
Check out the Green Numbers below - 24" away. 580 in the centre and that's at 315 watts.

View attachment 5299559
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However, the numbers arent to dissimilar from these, going off the green numbers.
 
KAT-AL-LYST said:
As I have said, this is from an android app, utilizing the phone sensor, so I'm unsure how credible that is. But for now, it is all I have.
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Android here as well, "photone" app seems more reliable than the previous app I had but still its just a "best guess" and used to average out the hot spots not get a specific number. Should probably invest in a proper apogee sensor for that.
 
sandman83 said:
Android here as well, "photone" app seems more reliable than the previous app I had but still its just a "best guess" and used to average out the hot spots not get a specific number. Should probably invest in a proper apogee sensor for that.
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Have you tried "PPFD Meter- Grow Light Meter"
 
KAT-AL-LYST said:
OK, so my leave temp is 20.3 degrees C on leaves that are 700-800mm from light. And the PPFD map is as follows @315W draw.

The two-meter pics are from directly under fixtures, and at bud hight.
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Think I've tried that app, try the Photone app for us and see what you get. MAke sure you point out the right light setting before reading.
 
KAT-AL-LYST said:
As I have said, this is from an android app, utilizing the phone sensor, so I'm unsure how credible that is. But for now, it is all I have.
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I was using the Photone app for a while and then found a steal on Ebay for an Apogee 500, the Photone app was not to far from the Apogee when the lights were 100% It's the low light areas where the photone app was a little off.
 
KAT-AL-LYST said:
Also, what do you mean by "100% of the original flush"
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When the flowers are developing, the pistils (hairs) are all white for a while. I'd consider that the first flush. Then once most of the first flush have turned brown, some plants will put out a significant number of fresh white pistils, not nearly as many as the first flush but still noticeable (a second flush). Then as they mature, fresh white ones will keep slowly trickling in (not really a "flush" per se because it's not all at one time).

I'd wait at least until you're in that "trickling in" phase, when all the "original" hairs are brown. I would say wait until 100% of them are brown all over, but a lot of plants will keep spitting out a couple fresh ones here and there literally forever, so I just go by 100% of the initial one or two flushes
 
weedstoner420 said:
When the flowers are developing, the pistils (hairs) are all white for a while. I'd consider that the first flush. Then once most of the first flush have turned brown, some plants will put out a significant number of fresh white pistils, not nearly as many as the first flush but still noticeable (a second flush). Then as they mature, fresh white ones will keep slowly trickling in (not really a "flush" per se because it's not all at one time).

I'd wait at least until you're in that "trickling in" phase, when all the "original" hairs are brown. I would say wait until 100% of them are brown all over, but a lot of plants will keep spitting out a couple fresh ones here and there literally forever, so I just go by 100% of the initial one or two flushes
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Wait til they are begging to be chopped..lol, not when they are still fresh.. like old folks walking around with hunched backs, let them live out their lives man.
 
weedstoner420 said:
When the flowers are developing, the pistils (hairs) are all white for a while. I'd consider that the first flush. Then once most of the first flush have turned brown, some plants will put out a significant number of fresh white pistils, not nearly as many as the first flush but still noticeable (a second flush). Then as they mature, fresh white ones will keep slowly trickling in (not really a "flush" per se because it's not all at one time).

I'd wait at least until you're in that "trickling in" phase, when all the "original" hairs are brown. I would say wait until 100% of them are brown all over, but a lot of plants will keep spitting out a couple fresh ones here and there literally forever, so I just go by 100% of the initial one or two flushes
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This is new information to me. Thanks!
 
Here we go, it seems much different to the first app I was using. However, I'm still concerned about the leaf "tachoing"... This indicates either heat or light stress, no? It cant be heat stress, as the room doesn't get above 20, or below 13 degrees C. So it would suggest light stress, wouldn't it?

I have also used these bulbs for about 2 years and about 7 flowers now.. so may need some new bulbs, however that still doesn't explain the tacho
 

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ALPHA.GanjaGuy said:
looking nice! I really wouldn't be worried, I didn't comment as most of the comments from others echo what I would say/suggest

You are right around when they should be exploding
You may consider raising the light and bringing it up to 100%
A little tip burn is common as many people really push their plants, it shouldn't hurt anything
I don't see any issues
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Thoughts?
 
Also, where can I buy a PPFD map to lay out to get consistent readings and distances to the fixture? I want to run some tests when this grow finishes.
 
KAT-AL-LYST said:
Here we go, it seems much different to the first app I was using. However, I'm still concerned about the leaf "tachoing"... This indicates either heat or light stress, no? It cant be heat stress, as the room doesn't get above 20, or below 13 degrees C. So it would suggest light stress, wouldn't it?

I have also used these bulbs for about 2 years and about 7 flowers now.. so may need some new bulbs, however that still doesn't explain the tacho
Click to expand...
Defiantly change the bulbs. That's a low PAR. My first reaction to tacoed leaves is the VPD. You want that to be at about 120-150 at this point of the grow. Some are really anal about vpd, some dont give a rats ass, I'm in between.. whats your air movement like, how many fans you got going? TYhe other thought is maybe a deficiency, my guess is potassium.

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Simply put, Vapor Pressure Deficit measures the difference between the amount of drying power the atmosphere is exerting upon your plants. VPD is the key...
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