Plant Moisture Stress - Symptoms and Solutions

Uncle Ben

Well-Known Member
Ah, well its all in my grow journal, but heres a breakdown.

24/0 from seed in AG (1/31 on this seed)
I recommend a rest. A 20/4 is a nice compromise.

Nothing but spring water that I let sit out for a few days with the cap off.

Temp has ranged from maybe 85-90 at the hottest point. (was for a few hours).

Its usually around 70-75 inside my grow space.


Root growth is doing fine, I have tons of long healthy roots growing every day. I have a 10" airstone pumping tiny oxygen bubbles up to them also.

I put 1/3 of a nutrient solution in my res and they started to look a little bit better, but then the first night I gave them darkness (18/6) they looked worse in the morning. And now they look how they do.


So I started looking for possible problems..

This thread looked like it might have someone who would have the answer.

If you can't tell from that, I guess its a pH issue.
It's not a pH issue. Your plant is suffering from moisture stress witness the "claw" and curling leaves. You didn't say what I feel is the most relevant clue as to what's causing it - too much salts (nutes).

Good luck,
UB
 

lurkmaster

Well-Known Member
Thanks for the response,

I have switched to 18/6 as of yesterday (2 days of 6 hours darkness so far)

They started look crappy before I gave them nutes. I used about 1/3 of a nutrient tablet and they started to look a tiny bit better then got worse.

I think I just got worried and posted here without trying to wait it out, it looks like they are slowly getting better.

I'm glad that I was actually able to positively ID my problem though, now I know what was wrong with my babies =]

one of them doesn't really look that good though.. (dying round leaf was from problems shedding seed membrane from shell)


here is the one I posted a pic of earlier. (looking much better)


does that first plant still look like its suffering from moisture stress? I figured I was in the clear since the other plant started looking better, I'm just assuming that one is slow.
 

Uncle Ben

Well-Known Member
Looks good to me. Good that you're trying to correct a wrong before it gets much bigger.

I'm curious, what is the NPK value of the food you're giving it?

UB
 

shabazz

Active Member
Wsup everyone,Im havin a problem wit my ladies.they all got limp and droopy.I dont kno how to get them bak on track.can someone please help?
 

HOLROYD

Active Member
YO LIKE HOW DIDS YOU GET THEM THAT WAY AND SH*T YO....

Seriously...I'd like to help, but with that kind of vernacular it doesn't look like you understand English very well.

Try a photo and a description of your routine, and maybe some one here can point out what may be useful to you.

Overwatering? First choice. Too little light? Too cold?

What are you growing in what, and for how long?

spencer
 

OneHit

Well-Known Member
UB, question for you. I looked around, but I couldnt find an answer. The bottom branches of one of my plants is very very soft. They arnt hard and crispy like the other main colas. My other plants dont have that problem, bottom branches are firm.

What could be the problem? Let me know if you need pics.

Oh yeah, I watered a few days ago, atleast 3. Ive been checking the weights of the pots, and though the top few inches feel extremely dry to the point the dirt is seperating from the walls. It still has a good weight to it, so its def still wet at the bottom.
 

StevenColbert

Active Member
I will join unfortunately.. I'm about two weeks in...And one stopped growing and the 2 little oval leafs are drooping and turning yellowish/w spots of like copper on one and the two main leafs are drooping as well but still green, while the other one has 4 new leafs and is doing fine?? using FF ocean forest, small amount botanicare nutes...

"Join my friend, join."[/quote]
 

rednug

Active Member
i got a serious question.

someone i knows plant has started to loose leaves within a couple days. then it started to get limp.

theres like two seta of leavs left!:o
 

Uncle Ben

Well-Known Member
I will join unfortunately.. I'm about two weeks in...And one stopped growing and the 2 little oval leafs are drooping and turning yellowish/w spots of like copper on one and the two main leafs are drooping as well but still green, while the other one has 4 new leafs and is doing fine?? using FF ocean forest, small amount botanicare nutes...

"Join my friend, join."
Cotyledons (endosperm) are food storage organs, not true leaves. Once their reserves are used up, expect them to drop.
 

Uncle Ben

Well-Known Member
i got a serious question.

someone i knows plant has started to loose leaves within a couple days. then it started to get limp.

theres like two seta of leavs left!:o
He needs to read a book on plant culture before actually trying to grow anything.
 

Uncle Ben

Well-Known Member
UB, question for you. I looked around, but I couldnt find an answer. The bottom branches of one of my plants is very very soft. They arnt hard and crispy like the other main colas. My other plants dont have that problem, bottom branches are firm.

What could be the problem? Let me know if you need pics.
Lack of adequate moisture?

Oh yeah, I watered a few days ago, atleast 3. Ive been checking the weights of the pots, and though the top few inches feel extremely dry to the point the dirt is seperating from the walls.
That's too dry and will create dry channels such that it will be very difficult to wet the soil thoroughly throughout the pot. Water will have a tendency to drain down the sides rather than thru the soil.

It still has a good weight to it, so its def still wet at the bottom.
Sounds like the roots have not reached the bottom yet. If it had, the plant would feel light. Roots wick off moisture rapidly. Bottom line, your plant does not sound very healthy.

Good luck,
UB
 

Jerry Garcia

Well-Known Member
UB, thank you for your time. You entertain any question, even if the answer could be found with a minimal amount of reading/research by the individual. Much respect.

Not quite two weeks into my first grow, I have committed the cardinal sin of overwatering...though I blame it mostly on the Miracle Grow Organic potting soil I started with. Maybe with some perlite things could have been better, but it just retained too much moisture. I ditched the MG in favor of FF Ocean Forest and larger 5 1/2" square pots. They continue to produce new leaf growth every day or two, but some leaves still appear droopy.

Taking earlier advice from a thread in RIU, I purchased a $5 moisture meter from lowes, and it may have been the best thing I ever did. The plants that looked the most droopy were the ones with the highest readings on the moisture meter. As a first time grower (I prefer that term to "noob" as I have done many hours of research during these first few weeks) it is hard to determine what is wet and what is dry. Not with this cheap device. I recommend it to anyone (especially first time growers).

One of my more robust little girls has begun to develop some kind of deformation on her first set of serrated leaves. I have been administering no nutrients, only distilled water and my myriad of fluoro's and a 150w hps. Temp fluctuates, typical high 84-86, typical low 70-75. My only problem thus far has been relative humidity. It hovers at 20-25% with the lights on, and 40-50% at night. You indicated in an earlier post if they grow with a low humidity, then go with it. So I am. But just for experimentation's sake, I placed 3 plants in a humidity "tent", using wooden skewers, saran wrap, and tape to create an enclosed environment with locally increased humidity.

Anyway, the plant that developed this problem was the first girl subjugated to the tent. She was one of my strongest early seedlings and was doing just fine (until now).



The first two show the problem area, and I just now noticed another similar patch of badness developing in the second image. The last one shows the general droop discussed in the beginning (that should be corrected as the soil eventually gets dry).

Help my babies Uncle Ben!
 

Uncle Ben

Well-Known Member
UB, thank you for your time. You entertain any question, even if the answer could be found with a minimal amount of reading/research by the individual. Much respect.
Time is limited but I try to answer those that seem stuck. We'll get to the bottom of this thru a series of questions/answers.

Not quite two weeks into my first grow, I have committed the cardinal sin of overwatering...though I blame it mostly on the Miracle Grow Organic potting soil I started with. Maybe with some perlite things could have been better, but it just retained too much moisture. I ditched the MG in favor of FF Ocean Forest and larger 5 1/2" square pots. They continue to produce new leaf growth every day or two, but some leaves still appear droopy.
If the root system is healthy, I find it next to impossible to overwater. A robust root system will wick away about whatever you give it under normal circumstances, using typical potting soils. MG soil is a good soil. You need to adjust your watering schedule. For starts, I would use taller pots. Seedlings have a pretty long taproot and a taller pot also means less chance of overwatering. Also, when you upcan, sink the plant so that the first node with leafsets is just a hair above the soil line. This will insure root production the entire length of the buried "trunk" and after a week or so, they will take off like a ruptured goose. ;)

One of my more robust little girls has begun to develop some kind of deformation on her first set of serrated leaves.
Probably stress related. Try not to read too much into it.

I have been administering no nutrients, only distilled water and my myriad of fluoro's and a 150w hps.
You don't need to use distilled water, tap is fine and unless you are absolutely certain that MG has NO nutrient charge, then you should be lightly fertilizing. Does the soil have bluish green pellets, encapsulated food?

Temp fluctuates, typical high 84-86, typical low 70-75. My only problem thus far has been relative humidity. It hovers at 20-25% with the lights on, and 40-50% at night.
RH is fine if the root system is doing its job. When you upcanned, were the rootballs intact or did they fall apart?

Anyway, the plant that developed this problem was the first girl subjugated to the tent. She was one of my strongest early seedlings and was doing just fine (until now).
So much for tents. :D Again, your focus should be on developing a robust root system. When you have one, you'll get this kind of vigor - https://www.rollitup.org/general-marijuana-growing/9114-spin-out-chemical-root-pruning.html

The first two show the problem area, and I just now noticed another similar patch of badness developing in the second image. The last one shows the general droop discussed in the beginning (that should be corrected as the soil eventually gets dry).

Help my babies Uncle Ben!
What kind of light fixture and how far from the plant tops is it?

Good luck,
UB
 

Where in the hell am I?

Well-Known Member
UB, thank you for your time. You entertain any question, even if the answer could be found with a minimal amount of reading/research by the individual. Much respect.

Not quite two weeks into my first grow, I have committed the cardinal sin of overwatering...though I blame it mostly on the Miracle Grow Organic potting soil I started with. Maybe with some perlite things could have been better, but it just retained too much moisture. I ditched the MG in favor of FF Ocean Forest and larger 5 1/2" square pots. They continue to produce new leaf growth every day or two, but some leaves still appear droopy.

Taking earlier advice from a thread in RIU, I purchased a $5 moisture meter from lowes, and it may have been the best thing I ever did. The plants that looked the most droopy were the ones with the highest readings on the moisture meter. As a first time grower (I prefer that term to "noob" as I have done many hours of research during these first few weeks) it is hard to determine what is wet and what is dry. Not with this cheap device. I recommend it to anyone (especially first time growers).

One of my more robust little girls has begun to develop some kind of deformation on her first set of serrated leaves. I have been administering no nutrients, only distilled water and my myriad of fluoro's and a 150w hps. Temp fluctuates, typical high 84-86, typical low 70-75. My only problem thus far has been relative humidity. It hovers at 20-25% with the lights on, and 40-50% at night. You indicated in an earlier post if they grow with a low humidity, then go with it. So I am. But just for experimentation's sake, I placed 3 plants in a humidity "tent", using wooden skewers, saran wrap, and tape to create an enclosed environment with locally increased humidity.

Anyway, the plant that developed this problem was the first girl subjugated to the tent. She was one of my strongest early seedlings and was doing just fine (until now).



The first two show the problem area, and I just now noticed another similar patch of badness developing in the second image. The last one shows the general droop discussed in the beginning (that should be corrected as the soil eventually gets dry).

Help my babies Uncle Ben!
Never blame what yer workin with! Yer the 1 who used it!
 
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