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Seeds all germinate, but don't sprout when planted?
- Thread starter FrankC
- Start date
Actually, my nute solution reads 289 ppm and 614 us/cm (which I thought was the EC ?). This is a solution of about 1/3 of the recommended dose of nutes: 5 ml/gallon of Fox Farms Big Bloom , 3 ml/gallon of FF Grow Big, 2 ml/gallon of CalMag (Botanicare), and pH adjusted to 6.0.
Mollisol
New member
Which one of these girls is called Abby? Abby Norml. Haha! I'm just kidding, they look good.
I just thought it was funny you gave them girl names. Then I started thinking about an earlier post when you asked, "is this abnormal?" Then I started thinking about the Mel Brooks classic: Young Frankenstein. Starring, Gene Wilder & Terry Gar.
I think some of you will get the reference.
I just thought it was funny you gave them girl names. Then I started thinking about an earlier post when you asked, "is this abnormal?" Then I started thinking about the Mel Brooks classic: Young Frankenstein. Starring, Gene Wilder & Terry Gar.
I think some of you will get the reference.
Today, Blanca (auto White Widow) looks unusual.
Her first set of true leaves had been abnormal, one of them looking chewed on one side (although I see no evidence of insects).
Now (day 18) she has more issues:
The other two girls (below) are doing much better - so the problems seem to be something specific to Blanca, not the overall conditions of the grow - remember, she's the one I dropped on the floor while still in seedling cup on day 11.
Any ideas why Blanca is doing poorly?
Conditions:
Temp about 70-73, RH fluctuates about 50-60:
Coco/30% Perlite, 3-gallon fabric pots.
Currently watering with 1/3 strength nutes: Per gallon: 2 ml CalMag Botanicare, 5 ml Fox Farm Big Boom, 3 ml FF Grow Big, pH 6.0, EC 570 uS/cm (.570 mS/cm), 270 PPM.
3'x3'x6' AC Infinity tent, Ionboard S33 LED light, inline 6" exhaust fan, oscillating fan, and humidifier .
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Her first set of true leaves had been abnormal, one of them looking chewed on one side (although I see no evidence of insects).
Now (day 18) she has more issues:
- Both of the second set of leaves look like they were chewed on a bit (red arrows).
- Those leaves have a few brown spots near the edges, if you zoom in and look closely.
- And the third set of leaves is very asymmetric - one is quite large (at 10 o'clock)) while the opposite one has barely grown out from the stem (purple arrow)
- She is by far the smallest of the three plants, even though she was the first to pop from the soil (coco)..
The other two girls (below) are doing much better - so the problems seem to be something specific to Blanca, not the overall conditions of the grow - remember, she's the one I dropped on the floor while still in seedling cup on day 11.
Any ideas why Blanca is doing poorly?
Conditions:
Temp about 70-73, RH fluctuates about 50-60:
Coco/30% Perlite, 3-gallon fabric pots.
Currently watering with 1/3 strength nutes: Per gallon: 2 ml CalMag Botanicare, 5 ml Fox Farm Big Boom, 3 ml FF Grow Big, pH 6.0, EC 570 uS/cm (.570 mS/cm), 270 PPM.
3'x3'x6' AC Infinity tent, Ionboard S33 LED light, inline 6" exhaust fan, oscillating fan, and humidifier .
​​​​
12HourPower
New member
614 uS = 0.614 mS. Bluey is using mS units. That is an EC measurement, which is what the meter uses to calculate the ppm.
When he said 400 ppfd he was talking about light intensity.
When he said 400 ppfd he was talking about light intensity.
OK, I think I know what the problem is with Blanca (and Betty to some extent): calcium deficiency.
The first photo is Blanca. Note the misshapen leaves, and the few brown spots (upper leaf).
This is from an article about growing in Coco Coir. Note the misshapen leaf in the first picture, and the brown spots
The cause: improper preparation of Coco Coir.
When I prepared the coco from a dry brick, I had followed the article https://www.growweedeasy.com/coco-coir The article said:
"Optimally, you can add a Cal-Mag supplement and pH this water to 6.0 before soaking. This can help make sure your coco coir has extra Calcium and also help it get into the right pH range right from the beginning. Honestly though I often use water right out the tap. You’ll be adding Cal-Mag and setting the pH later, but the “best†way is to start supplementing your coco coir now, and it definitely may save you time and trouble later.
​
So, based on this, I added a small amount of CalMag to the water when I rehydrated the coco - about 1 ml/gallon.
However, today I read an article https://www.cocoforcannabis.com/how-to-prepare-and-buffer-coco-coir/ that says to buffer the Coco in a much higher dose of CalMag, about 10x higher than I used - AND to do it for two 8-hr soaks.
"There are cation exchange sites in coco that will interfere with nutrition until they are buffered. The cation exchange sites in coco naturally come loaded with sodium (Na) and potassium (K) cations. However, the Na and the K are only weakly held to the exchange sites. In the presence of calcium (Ca) or magnesium (Mg), the sites will release their Na or K cations and lock onto the Ca or Mg. These processes are known as “cation exchangesâ€.
"Buffering coco is accomplished by soaking it in Ca and Mg. This allows the cation exchanges to take place prior to adding plants. Simply soak your coco in a solution of Cal/Mag water and the exchange sites will release their K and Na cations and lock onto the Ca and Mg. When the cation exchange sites bond with Ca and Mg rather than Na and K, it is “bufferedâ€. The bonds that hold the Ca and Mg to the sites are very strong and cation exchange will largely stop. This means that all of the nutrients that you add to the water will be available to the plant at the ratios that you provide them."
​
I think the problems I'm seeing could be explained by not doing a thorough enough Cal Mag treatment when preparing the Coco. They recommend a foliar spray with CalMag as a treatment.
​​​
The first photo is Blanca. Note the misshapen leaves, and the few brown spots (upper leaf).
This is from an article about growing in Coco Coir. Note the misshapen leaf in the first picture, and the brown spots
The cause: improper preparation of Coco Coir.
When I prepared the coco from a dry brick, I had followed the article https://www.growweedeasy.com/coco-coir The article said:
"Optimally, you can add a Cal-Mag supplement and pH this water to 6.0 before soaking. This can help make sure your coco coir has extra Calcium and also help it get into the right pH range right from the beginning. Honestly though I often use water right out the tap. You’ll be adding Cal-Mag and setting the pH later, but the “best†way is to start supplementing your coco coir now, and it definitely may save you time and trouble later.
​
So, based on this, I added a small amount of CalMag to the water when I rehydrated the coco - about 1 ml/gallon.
However, today I read an article https://www.cocoforcannabis.com/how-to-prepare-and-buffer-coco-coir/ that says to buffer the Coco in a much higher dose of CalMag, about 10x higher than I used - AND to do it for two 8-hr soaks.
"There are cation exchange sites in coco that will interfere with nutrition until they are buffered. The cation exchange sites in coco naturally come loaded with sodium (Na) and potassium (K) cations. However, the Na and the K are only weakly held to the exchange sites. In the presence of calcium (Ca) or magnesium (Mg), the sites will release their Na or K cations and lock onto the Ca or Mg. These processes are known as “cation exchangesâ€.
"Buffering coco is accomplished by soaking it in Ca and Mg. This allows the cation exchanges to take place prior to adding plants. Simply soak your coco in a solution of Cal/Mag water and the exchange sites will release their K and Na cations and lock onto the Ca and Mg. When the cation exchange sites bond with Ca and Mg rather than Na and K, it is “bufferedâ€. The bonds that hold the Ca and Mg to the sites are very strong and cation exchange will largely stop. This means that all of the nutrients that you add to the water will be available to the plant at the ratios that you provide them."
​
I think the problems I'm seeing could be explained by not doing a thorough enough Cal Mag treatment when preparing the Coco. They recommend a foliar spray with CalMag as a treatment.
​​​
Bluey
Well-known member
I foliar with calmag right into preflower until buds start to form. Still get cal deficiencies unfortunately. I may have to do the soak treatment and see if it makes much difference.
Put that much calmag into this grow I got N toxicity from it and still got cal deficiency.
Put that much calmag into this grow I got N toxicity from it and still got cal deficiency.
Today is day 22 since sprouting (~25 from seed), and 2 of the 3 plants seem to be doing well. These are Auto Tangerine and Auto Bruce Banner
I'm wondering if I should try some very mild LST, just bending the tops over slightly.
However, the internode distances are very small, and I don't want to damage the plants.
Better to leave them alone for now, or try bending them over?
​​​
I'm wondering if I should try some very mild LST, just bending the tops over slightly.
However, the internode distances are very small, and I don't want to damage the plants.
Better to leave them alone for now, or try bending them over?
Rootsruler
New member
Agree with Bluey.
Rootsruler
New member
You can top autos. Depends on how much veg time has been programmed into the breeding.