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15 solo cups and no-veg

Aqua Man said:
Genetics, temp differential and color spectrum affect stretching.

You can manipulate 2 of those to increase or decrease stretching
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I'd like to play with some blue spectrum lights but they have been hard for me to find. I used to have blue T5's but they don't seem to be available any longer. The only blue I can find are Aquarium lights and they look more like strip lights and not really what I'm looking for. I'd like to try and keep a sativa strain shorter by using the blues if blue is supposed to keep spacing between the nodes shorter. I know reds stretch so???
 
SpectrumFarms said:
Day 14 from 12/12 all the plants have shown me their sex and the boys have been culled, bringing me down to 11 plants. The Frequency Shift and HB fucking stink already, both smell strongly of skunk, just picking them up the smell wafts in your nose holes. Just curious if the stretch is less on a no-veg cycle, or is that even a factor?

Temp: 81
RH: 51%
PAR:500
EC: 1.1 cal-mag, bloom, boost
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HB F1 will stretch even with the reduced veg time. Perhaps stretch is actually reduced with a longer veg like Zens.
But from what I know of her and having been grown by 4 different growers spanning the northern hemisphere, the large robust pheno is dominant in the seed stock and she's a stretcher up to week 5, indoors or outdoors.
 
Pipecarver said:
I'd like to play with some blue spectrum lights but they have been hard for me to find. I used to have blue T5's but they don't seem to be available any longer. The only blue I can find are Aquarium lights and they look more like strip lights and not really what I'm looking for. I'd like to try and keep a sativa strain shorter by using the blues if blue is supposed to keep spacing between the nodes shorter. I know reds stretch so???
Click to expand...
HLG has lots of options. 4k is what i liked but some will use up to even 6k
 
Pipecarver said:
I'd like to play with some blue spectrum lights but they have been hard for me to find. I used to have blue T5's but they don't seem to be available any longer. The only blue I can find are Aquarium lights and they look more like strip lights and not really what I'm looking for. I'd like to try and keep a sativa strain shorter by using the blues if blue is supposed to keep spacing between the nodes shorter. I know reds stretch so???
Click to expand...
I found a little sylvania grow bulb at walmart with a blue that works for me.
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growsinse79 said:
I found a little sylvania grow bulb at walmart with a blue that works for me.
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In Canada they have these but is all blue colored light in the 380 - 480 nm range that I'm looking for? there's no info on wave length. I don't know enough about it. Rapid Led has the same pucks in the blue I have in Red around $35 Usa each I may have to go that rout again and get 2
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Light on and light off temp difference is the easiest way to control stretch IME.
The greater the difference between lights on and off the greater the stretch.
And like wise the closer on and off temps are the less the stretch.
 
steamroller said:
Light on and light off temp difference is the easiest way to control stretch IME.
The greater the difference between lights on and off the greater the stretch.
And like wise the closer on and off temps are the less the stretch.
Click to expand...
That makes sense this grow has stayed very steady with the temps 77-81 the whole ride so far.
 
steamroller said:
Light on and light off temp difference is the easiest way to control stretch IME.
The greater the difference between lights on and off the greater the stretch.
And like wise the closer on and off temps are the less the stretch.
Click to expand...
And as soon as you go negative diff it makes a huge impact. So 1-2f cooler during lights on than lights off really reduces stretch.
 
Day 20 of flower the plants look happy most are starting to form buds but the KK’s are taking forever. I’m just now seeing a couple pistils being thrown. The S1 of the Elev8 Gelato is taking, it is starting to form pollen sacks on the sprayed branch. Thanks for the tips guys, feeding these at 1.0 EC and are healthy, happy and no burn!
These plants are 38 days old from cotyledons.

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SpectrumFarms said:
Day 20 of flower the plants look happy most are starting to form buds but the KK’s are taking forever. I’m just now seeing a couple pistils being thrown. The S1 of the Elev8 Gelato is taking, it is starting to form pollen sacks on the sprayed branch. Thanks for the tips guys, feeding these at 1.0 EC and are healthy, happy and no burn!
These plants are 38 days old from cotyledons.

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i found this with my own no veg run where some were cotton tops and other cultivars were just showing signs of pistils, it sure didn't finish that way though. somehow everything just came together at the end. i had doubts almost all the way through wasn't till like day 60 before i felt at ease! i'm glad i did it and am now on my second run like this.

please don't kill me, but do you have mites? what are those marks on your leaves?

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Stoneyluv said:
i found this with my own no veg run where some were cotton tops and other cultivars were just showing signs of pistils, it sure didn't finish that way though. somehow everything just came together at the end. i had doubts almost all the way through wasn't till like day 60 before i felt at ease! i'm glad i did it and am now on my second run like this.

please don't kill me, but do you have mites? what are those marks on your leaves?

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Those marks are from the twice a day colloidal silver spray. I read to expect it.
 
SpectrumFarms said:
Day 20 of flower the plants look happy most are starting to form buds but the KK’s are taking forever. I’m just now seeing a couple pistils being thrown. The S1 of the Elev8 Gelato is taking, it is starting to form pollen sacks on the sprayed branch. Thanks for the tips guys, feeding these at 1.0 EC and are healthy, happy and no burn!
These plants are 38 days old from cotyledons.

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Awesome glad to see that all work out Properly.
 
Here are some update pictures. I took one before the spray so you can see the sacs forming and a top of the plant to show you it’s the silver causing the specks. I got one that is just sad, it’s one of the bagseeds so I crack it up to genetics. I am really digging how the plants stack with no veg. I’m really enjoying it so far.

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Observer said:
Something wrong here, putting my finger on it.

PPFD on this one?

One way to help narrow it down is bending it away from the electromagnetic radiation, seeing how It responds/ if it quickly tries to aim back towards the light.
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I just took a reading and it’s at 527.
This has been the finicky plant this whole run, it’s sisters aren’t so fussy.
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Aqua Man said:
Its definitely got a transpiration issue and that is likely the root cause. Under any stress always reduce the light because light drives demand and transpiration
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I’ll probably just end pulling it or letting ride as is. It was a bag seed and not worth messing with the rest of the tent over it.
 
SpectrumFarms said:
There are two more of these in the tent praying. Would this be a phenotypical trait making this one light sensitive?
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Praying is light stress. Typically when you see the top 2-3 nodes “praying” thats about the limit of light the plant can handle of light.

It depends in the plant but usually any more than that causes negative effects and stunting to the plant. If thats accompanied by swelling or discolouration then its a warning sign and not a good thing

Praying is actually very high transpiration rates which are directly driven by light intensity. As light is what drives transpiration
 
A slight V with no swelling or discolouration on the too 2-3 nodes is the ideal situation… but judging from the pictures they are definitely light stressed
 
Stoneyluv said:
Light drives it? not temp and humidity? so what, temp and humidity just allow it to disperse and the light actually controls it?
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Well, temp and humidity govern stomata opening and some other things, but the actual "stimulation' or energy comes from photons hitting reaction centers in the leafs, chloroplasts, electrons within the chlorophyll, thus giving energy for photosynthesis, co2 and water into glucose? And sucrose?

These turn into excitons that transports energy between molecules in the leaf.

When these wavelengths are too intense/too much/ too long it "overwhelms" them. Too much energy.


Another cool thing is, quantum mechanics are involved, and that's why plant photosynthesis can be 95% efficient or so.
 
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Stoneyluv said:
Light drives it? not temp and humidity? so what, temp and humidity just allow it to disperse and the light actually controls it?
Click to expand...
Light drives it. That why in the dark they droop and temp/humidity are less important. Eg you want lower humidity at night. Temp and humidity affect transpiration but light is what drives it
 
Observer said:
Well, temp and humidity govern stomata opening and some other things, but the actual "stimulation' or energy comes from photons hitting reaction centers in the leafs, chloroplasts.

When these wavelengths are too intense/too much/ too long it "overwhelms" them. Too much energy.
Click to expand...
Blue light is greatly responsible for stomata opening
 
GoodShit97 said:
This lady is light this from lights on to lights off, at 100%
Shes damn happy imo.
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So the higher the transpiration the more pointed up the stems will be and the more V shape it will be.

Swelling which is not seen in your photo is caused by transpirational stress. Eg light, temp and humidity are the main causes with root pressure also contributing
 
Aqua Man said:
So the higher the transpiration the more pointed up the stems will be and the more V shape it will be.

Swelling which is not seen in your photo is caused by transpirational stress. Eg light, temp and humidity are the main causes with root pressure also contributing
Click to expand...
Yeah this may have been a little overkill on the praying. I turned the light way down to 5% to do stuff then like an hour later when I was done she looked like that.

Otherwise all my plants slightly V this run. Finally got the 4x8 dialed in i think.
 
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