N
nickcapuano
- 53
- 8
I acquired a clone supposedly called Apollo in January and have had problems with it from the start with yellowing of the leaves in flowering like i have never seen before.
The plants in question started flowering on 7/6
Growing in rockwool using Ionic nutrients - bloom, boost, bloom stimulator, fossil fuel, nitrozime, as per the feeding chart. Using a drip system and hand watering anything needing watered once a day or less. 5.8-6.0 ph.
Water is city/tap left out for the chlorine. From the tap is 120-140ppm. I use a little cal-mag to get to 200ppm then mix nutes.
CO2 generator @1500ppm with environmental controller - day temps - ~82 degrees 55-60RH. Night= 75 degrees 55-58RH.
Lights are 600W HPS and 8 bulb T5. (trying one under each but they are both doing the same thing)
So these things clone easy and in the veg stage grow easily and rapidly but when i get to flower things go downhill. The two plants in question were flowered at about 6 inches and i do dome LST to try to keep them from stretching so much. They are a little over 30" now.
You can see from the pics, the leaves seem to yellow from the outside in starting at the bottom and middle of the plant. The plant appears to stop growing and the yellowing turns to browning and you can see the pics of what happens to these in another month. If you look close at the leaves, you can see they turn a light brown and get what feels like paper thin before they totally dry out. One last thing - there are small black spots you can see on the leaves. I have looked at them under magnification- it just looks like a black mark on the top of the leaf. nothing on the bottom. it does not wipe off or smear. I have never seen any bugs in the garden.
I have done several runs since i acquired this strain and tried many things including increasing nutes, decreasing nutes, lowering the temps in the room. I used to grow at high 80's with no problems so made many adjustments and lowered the temps to where they start at about 78 and the max at end of day now is 83. I relocated the reservoirs i use to outside the room in case the temps were too high(never had a problem with that either.) I also moved the lights farther away thinking the bleaching on the leaves was from too much light but it happens at the top and bottom of the plant. I even have an 8 bulb T5 i use for flowering for the first two weeks with the blue/high K bulbs. i have one plant under that and one under the 600HPS but the leaves look the same on both.
With the yellowing from outside in from what seems to be from the bottom up on the plant i thought it may be a phosphorous deficiency so i tried separating two plants giving one more nutes and one less but leaves still yellowed and the one with more nutes got nute burn on leaf tips.
I thought my PBP nutrients were bad because they sat for a while so i bought brand new and a different brand but again- same problem.
On these current two in question i have not only separated under different lights to see if that helps but i am increasing the Boost which is phosphorous and potassium.
I must be wrong but i thought with yellowing/bleaching of the leaves and all visual symptoms it was either too much or intense light, too much heat, or phosphorous def.
Unless this strain is extremely sensitive to heat and i need to get down to around 78 even with CO2 i dont know.
So in the pics you can see the leaf and black spots and the same strain that is about a month farther along with all the leaf damage.
Please help me figure this out.
Thanks in advance
The plants in question started flowering on 7/6
Growing in rockwool using Ionic nutrients - bloom, boost, bloom stimulator, fossil fuel, nitrozime, as per the feeding chart. Using a drip system and hand watering anything needing watered once a day or less. 5.8-6.0 ph.
Water is city/tap left out for the chlorine. From the tap is 120-140ppm. I use a little cal-mag to get to 200ppm then mix nutes.
CO2 generator @1500ppm with environmental controller - day temps - ~82 degrees 55-60RH. Night= 75 degrees 55-58RH.
Lights are 600W HPS and 8 bulb T5. (trying one under each but they are both doing the same thing)
So these things clone easy and in the veg stage grow easily and rapidly but when i get to flower things go downhill. The two plants in question were flowered at about 6 inches and i do dome LST to try to keep them from stretching so much. They are a little over 30" now.
You can see from the pics, the leaves seem to yellow from the outside in starting at the bottom and middle of the plant. The plant appears to stop growing and the yellowing turns to browning and you can see the pics of what happens to these in another month. If you look close at the leaves, you can see they turn a light brown and get what feels like paper thin before they totally dry out. One last thing - there are small black spots you can see on the leaves. I have looked at them under magnification- it just looks like a black mark on the top of the leaf. nothing on the bottom. it does not wipe off or smear. I have never seen any bugs in the garden.
I have done several runs since i acquired this strain and tried many things including increasing nutes, decreasing nutes, lowering the temps in the room. I used to grow at high 80's with no problems so made many adjustments and lowered the temps to where they start at about 78 and the max at end of day now is 83. I relocated the reservoirs i use to outside the room in case the temps were too high(never had a problem with that either.) I also moved the lights farther away thinking the bleaching on the leaves was from too much light but it happens at the top and bottom of the plant. I even have an 8 bulb T5 i use for flowering for the first two weeks with the blue/high K bulbs. i have one plant under that and one under the 600HPS but the leaves look the same on both.
With the yellowing from outside in from what seems to be from the bottom up on the plant i thought it may be a phosphorous deficiency so i tried separating two plants giving one more nutes and one less but leaves still yellowed and the one with more nutes got nute burn on leaf tips.
I thought my PBP nutrients were bad because they sat for a while so i bought brand new and a different brand but again- same problem.
On these current two in question i have not only separated under different lights to see if that helps but i am increasing the Boost which is phosphorous and potassium.
I must be wrong but i thought with yellowing/bleaching of the leaves and all visual symptoms it was either too much or intense light, too much heat, or phosphorous def.
Unless this strain is extremely sensitive to heat and i need to get down to around 78 even with CO2 i dont know.
So in the pics you can see the leaf and black spots and the same strain that is about a month farther along with all the leaf damage.
Please help me figure this out.
Thanks in advance
