20 plants dieing leaves curling down HELP ASAP
- Thread starter akinaspeedstars1
- Start date
Hash Lover
Well-Known Member
They look good.
akinaspeedstars1
Well-Known Member
yup thats what i thought so transplant is def ruled out. It nitrogen defecent and i dont know why the leaves die and dry up and curl upwards.
Hash Lover
Well-Known Member
Check the problem guide. Probably Phosphorus deficiency. But I'm pretty sure they need everything and miracle grow is a good start but if you want to do well you need a more complete fertilizer.
akinaspeedstars1
Well-Known Member
did u not look at the root pics 3 post up. they havent even come close to filling out the bottom with roots. But there getting into buckets next week sometime
What are your temps and humidity like? I didn't see a fan? Do you have good air circulation? Also just a suggestion you may want to pot everything the same way it makes for one less variable to worry about when trying to figure what is wrong and also how much and when to water. Keeps a nice even canopy. Good luck!!
akinaspeedstars1
Well-Known Member
yup theres a fan and heater in the room cause its 0 degrees at night here. and the heater is not directly on the plants. it was but not now
and i have it set at 77 degrees
and i have it set at 77 degrees
Hash Lover
Well-Known Member
The fact that they have not had any nutes yet I think is the most of his problem.
akinaspeedstars1
Well-Known Member
yea there allready looking better. gunna transplant them for the last time at the end of the week and redo the lighting a little
Uncle Ben
Well-Known Member
You should be able to retain most of your leaves until harvest. You should be using a high N food during veg, something along the lines of a 9-3-6. See my sig link below also, as that ditty covers some pretty basic concepts alot of folks don't think about.
When you upcan, bury the trunk as deep as you can even if it means yanking off some of the lower leafsets. This will induce root output along the buried trunk.
UB
akinaspeedstars1
Well-Known Member
I lost leaves because the dryed up and died they wouldn't look stretched and shit if that wouldn't have happened. if u look in the pics theirs a Indica in there that is super stocky and bushy/its the smallest one.
Uncle Ben
Well-Known Member
There's a reason for that, or reasonS.
Long internodes is usually caused by insufficient light (and genetics), has nothing to do with the loss of leaves.
Good luck,
UB
Damios
Well-Known Member
Longer internodes is a main effect of stress, caused by multiple factors. Genetics tie into the amount they will stretch when introduced to a certain amount of stress. For instance a sativa is morelikely to stretch more than an indica in the same stress conditions.
The stress is caused by bad climate conditions, but mainly from the fluctuation of temperatures. If your grow room is 95 degrees with lights on and then 68 or so with lights off, that is a HUGE temperature fluctuation, which will cause the plants to stretch a LOT. For the most part though, if your climate conditions are prime, it shouldn't matter if the light is a little far away, the plants should not stretch that much. The smaller the fluctuation from day to night temperatures the less they will stretch.
Uncle Ben
Well-Known Member
Long internodes are caused by a few factors, none of them related to stress, whatever that happens to be at the moment. Some of those factors being:
1. Insufficient light which results in the plant reacting to more FR (Far Red) than R light spectrum...the plant is stretching for more light. The way it attempts to harvest more photons is by increasing internode length,
2. Too much N, especially of the ammonical type,
3. Too much P during flowering, a common drill amongst cannabis growers.
Plant stretch, what causes it? http://www.plantexsolutions.com/index00c0.html?id=607
Sativas have longer internodes than indicas whether they are "stressed" or not. It's a phenotype thingie.
Have not found that to be the case. You DO want a good differential between day to night temps, at least 15F and 25F is not too much. Why? Because high night temps results in carbos that were manufactured during the day being wasted to excessive respiration rather than cellulose production.
Plants ALWAYS stretch due to inadequate levels of light....whether that be a redwood forest or an indoor cannabis garden.
UB
Damios
Well-Known Member
"Long internodes are caused by a few factors, none of them related to stress, whatever that happens to be at the moment. Some of those factors being:
1. Insufficient light which results in the plant reacting to more FR (Far Red) than R light spectrum...the plant is stretching for more light. The way it attempts to harvest more photons is by increasing internode length,"
You are half true.
Insufficient light causes the plant to stretch, red light (which would include light from the Far Red side of the spectrum) institutes more growth period...pushing your plant to stretch even more so than if it were already stretching under the blue light spectrum.
"2. Too much N, especially of the ammonical type,
3. Too much P during flowering, a common drill amongst cannabis growers. "
How is this not stress though..? it is stress in the form of nutrient uptake.
"Sativas have longer internodes than indicas whether they are "stressed" or not. It's a phenotype thingie."
Yes this is true, but I mean no duh, that doesn't really have to do with what I said....
What I said:
"The stress is caused by bad climate conditions, but mainly from the fluctuation of temperatures. If your grow room is 95 degrees with lights on and then 68 or so with lights off, that is a HUGE temperature fluctuation, which will cause the plants to stretch a LOT."
"Have not found that to be the case. You DO want a good differential between day to night temps, at least 15F and 25F is not too much. Why? Because high night temps results in carbos that were manufactured during the day being wasted to excessive respiration rather than cellulose production."
Here if you don't believe me then read this:
http://www.420magazine.com/forums/how-grow-marijuana/71170-what-stretch-how-can-i-minimize.html
Straight from this article:
According to Cannabis Culture :
"Plant internodal length is directly related to the difference between day and night temperatures – the warmer your day cycle is as compared to your night cycle, the greater your internode length will be. The opposite also holds true; the closer your day and night temperatures, the shorter your internodes will be."
Also if you think stress can't directly affect stretching then this is from that article too:
Minimize stress:
Stretching can be a physiological reaction to a variety of environmental stresses (Low light, high humidity, low/high temperatures, transplant shock, leaf loss, etc). Maintaining optimum growing conditions is your best defense against stretch.
And here is something than neither of us mentioned, which is cool cause I learned this just from having to find this article for you...at least we both learned something:
Also Avoid hormones:
Some foliar sprays and additives can encourage stretch. Spraying Growth Plus (containing cytokines, humic acids and vitamins) during early flower may encourage stretch. "Cytokinine - activates cell stretching..."
1. Insufficient light which results in the plant reacting to more FR (Far Red) than R light spectrum...the plant is stretching for more light. The way it attempts to harvest more photons is by increasing internode length,"
You are half true.
Insufficient light causes the plant to stretch, red light (which would include light from the Far Red side of the spectrum) institutes more growth period...pushing your plant to stretch even more so than if it were already stretching under the blue light spectrum.
"2. Too much N, especially of the ammonical type,
3. Too much P during flowering, a common drill amongst cannabis growers. "
How is this not stress though..? it is stress in the form of nutrient uptake.
"Sativas have longer internodes than indicas whether they are "stressed" or not. It's a phenotype thingie."
Yes this is true, but I mean no duh, that doesn't really have to do with what I said....
What I said:
"The stress is caused by bad climate conditions, but mainly from the fluctuation of temperatures. If your grow room is 95 degrees with lights on and then 68 or so with lights off, that is a HUGE temperature fluctuation, which will cause the plants to stretch a LOT."
"Have not found that to be the case. You DO want a good differential between day to night temps, at least 15F and 25F is not too much. Why? Because high night temps results in carbos that were manufactured during the day being wasted to excessive respiration rather than cellulose production."
Here if you don't believe me then read this:
http://www.420magazine.com/forums/how-grow-marijuana/71170-what-stretch-how-can-i-minimize.html
Straight from this article:
According to Cannabis Culture :
"Plant internodal length is directly related to the difference between day and night temperatures – the warmer your day cycle is as compared to your night cycle, the greater your internode length will be. The opposite also holds true; the closer your day and night temperatures, the shorter your internodes will be."
Also if you think stress can't directly affect stretching then this is from that article too:
Minimize stress:
Stretching can be a physiological reaction to a variety of environmental stresses (Low light, high humidity, low/high temperatures, transplant shock, leaf loss, etc). Maintaining optimum growing conditions is your best defense against stretch.
And here is something than neither of us mentioned, which is cool cause I learned this just from having to find this article for you...at least we both learned something:
Also Avoid hormones:
Some foliar sprays and additives can encourage stretch. Spraying Growth Plus (containing cytokines, humic acids and vitamins) during early flower may encourage stretch. "Cytokinine - activates cell stretching..."
Uncle Ben
Well-Known Member
I know the author "snoofer", he's a typical parrot (who has plagarized me a few times).... we go back years to OG's FAQ submittal forum when he was a mod. He tried to strip my Plant Moisture Stress draft (see sig link below) of its important and pertinent info to protect Old Pink's ego, the head admin. Won't bore you with the details, just suffice it to say it was some tawdry stuff that Shipperke a senior mod had to straighten out. Some of his "facts" are full of fallacies too in the ditty he wrote/parroted - you may begin with the active ingredients in some of the PGR products he talks about. Not all contain Paclo.
I have grown cannabis, fruit trees, wine grapes, veggies, and other consumables for over 45 years, and know for a fact that a good differential between day and night temps has NO affect one way or the other on tissue (cell) elongation all factors considered...... and why would it? Nature stretches to reach something that it's looking for and that something is light or as a reaction to too much ammonical N, FR spectrum, etc. Ammonical N has the effect of influencing vigor and I use it to my advantage, witness a typical garden of mine. https://www.rollitup.org/general-marijuana-growing/9114-spin-out-chemical-root-pruning.html
All factors are in balance and that quick growth primarily is a result of using just the right amount of blood meal and compost, and of course a wide swing in day to night temps.
Alot of folks want to attach a reason for such and such, it's the human element which drives us to try and explain why things are the way they are. Doesn't mean those explanations are correct. More times than not, they're feelings not facts.
Another fallacy mentioned in your link, that HPS can induce stretching and you should use MH veg. Baloney. It's obvious someone has never experimented with this stuff, I have. I have used HPS exclusively from start to finish and my plants were very well behaved with no un-natural stretch. I have photos if folks wish to see them. Just haven't figured out how to fetch them from my gallery.
Check out phototropism, same thing (a plant response I explained and one that snoofer parroted from me years ago in your link). The shady side of a branch receives a hormone increase which elongates plant tissue. Plant cells on the shady side of the stem or petiole elongate therefore tipping the leaves toward the light source. Ever watch a sunflower turn its head 180* as it follows the sun's track across the sky? Fun stuff.
I do know thru experience and reading that a large differential between day and night temps produces better quality fruit, same with cannabis. I already mentioned the botanical reason.
Good luck,
UB
Why?
I have grown cannabis, fruit trees, wine grapes, veggies, and other consumables for over 45 years, and know for a fact that a good differential between day and night temps has NO affect one way or the other on tissue (cell) elongation all factors considered...... and why would it? Nature stretches to reach something that it's looking for and that something is light or as a reaction to too much ammonical N, FR spectrum, etc. Ammonical N has the effect of influencing vigor and I use it to my advantage, witness a typical garden of mine. https://www.rollitup.org/general-marijuana-growing/9114-spin-out-chemical-root-pruning.html
All factors are in balance and that quick growth primarily is a result of using just the right amount of blood meal and compost, and of course a wide swing in day to night temps.
Alot of folks want to attach a reason for such and such, it's the human element which drives us to try and explain why things are the way they are. Doesn't mean those explanations are correct. More times than not, they're feelings not facts.Another fallacy mentioned in your link, that HPS can induce stretching and you should use MH veg. Baloney. It's obvious someone has never experimented with this stuff, I have. I have used HPS exclusively from start to finish and my plants were very well behaved with no un-natural stretch. I have photos if folks wish to see them. Just haven't figured out how to fetch them from my gallery.
Check out phototropism, same thing (a plant response I explained and one that snoofer parroted from me years ago in your link). The shady side of a branch receives a hormone increase which elongates plant tissue. Plant cells on the shady side of the stem or petiole elongate therefore tipping the leaves toward the light source. Ever watch a sunflower turn its head 180* as it follows the sun's track across the sky? Fun stuff.
I do know thru experience and reading that a large differential between day and night temps produces better quality fruit, same with cannabis. I already mentioned the botanical reason.
Good luck,
UB
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