Plant Moisture Stress - Symptoms and Solutions

raggyb

Well-Known Member
Ok guessing water problem let medium dry out before watering and gave them 200ml of ph 7 water. On day 10 of life root systems look fine getting some cupping/twisting and just starting to get some slight yellowing on the tips of the critical sour deisel. Heat mat is still set at 70 to keep roots warm when night temps drop. If I didnt have the heat mat on the hygrometer would read 59 as a low. Fan was hitting more of the plants than I would like useing it more for heat displacement from the t5. So I moved t5 up a couple inches and tilted fan back right now. Soil is a seedling mix npk 000. Mixed with worm castings and perlite. Approx measurements 75% seedling mix with perlite. 15% castings and additional 10% perlite. Here are some pictures of the worst couplrits. View attachment 4273632 View attachment 4273633 View attachment 4273634 View attachment 4273635View attachment 4273637 View attachment 4273637View attachment 4273638
They don't look all that bad. I'm confused though why the heat mat control is set for 70 but your reading is 79? Are T5 that hot? I don't feel you need 200ml water per plant. It depends how much that seed mix dries out, but in plastic cups I don't think it will. I use the same cup. I guess you got holes drilled in the clear one but not the red one? My math says 200ml is like 7 oz (7 shots). How long before you rewater? It all depends, but I would try only 60 ml per plant and it's a guess but I would not be surprised if you could even go a week before watering those again. They don't look like they can drink that much. But they look ok to me anyhow. If you look in the clear cup and see water droplets midway down you're still ok in my opinion.
 

Citylimits

Well-Known Member
They don't look all that bad. I'm confused though why the heat mat control is set for 70 but your reading is 79? Are T5 that hot? I don't feel you need 200ml water per plant. It depends how much that seed mix dries out, but in plastic cups I don't think it will. I use the same cup. I guess you got holes drilled in the clear one but not the red one? My math says 200ml is like 7 oz (7 shots). How long before you rewater? It all depends, but I would try only 60 ml per plant and it's a guess but I would not be surprised if you could even go a week before watering those again. They don't look like they can drink that much. But they look ok to me anyhow. If you look in the clear cup and see water droplets midway down you're still ok in my opinion.
Hard to show in pics. Both cups have holes double cups is just so I can check on root structure and to repot before I get bound up. T5s are hot probably get about 90 degrees at the canopy level without fan. Seedling mat is set on a low temp only to keep roots/soil at 70 when the night temps dip I do not want my soil temps to dip with them. I'm thinking my soil was too wet when I put seeds in. Took 9 days to dry out 5 with the dome on and 4 with dome off. Will let them dry out agian should of top pics of roots they look great. This is the twisting/cupping I am talking about.Screenshot_20190130-200332_Gallery.jpg Screenshot_20190130-200345_Gallery.jpg
 

raggyb

Well-Known Member
Hard to show in pics. Both cups have holes double cups is just so I can check on root structure and to repot before I get bound up. T5s are hot probably get about 90 degrees at the canopy level without fan. Seedling mat is set on a low temp only to keep roots/soil at 70 when the night temps dip I do not want my soil temps to dip with them. I'm thinking my soil was too wet when I put seeds in. Took 9 days to dry out 5 with the dome on and 4 with dome off. Will let them dry out agian should of top pics of roots they look great. This is the twisting/cupping I am talking about.View attachment 4273774 View attachment 4273775
Maybe yours will dry a little faster with holes through both cups and since T5's are that hot I didn't know. But I'm still guessing you don't need 7 shots and 2 is enough at that size. And since the cups are clear you can check once a day and see if they're not dry. I'm not sure what the twisting is but it could be over watering. It doesn't seem like you environment is bad.
 

Kokosgrow

Member
Hard to show in pics. Both cups have holes double cups is just so I can check on root structure and to repot before I get bound up. T5s are hot probably get about 90 degrees at the canopy level without fan. Seedling mat is set on a low temp only to keep roots/soil at 70 when the night temps dip I do not want my soil temps to dip with them. I'm thinking my soil was too wet when I put seeds in. Took 9 days to dry out 5 with the dome on and 4 with dome off. Will let them dry out agian should of top pics of roots they look great. This is the twisting/cupping I am talking about.View attachment 4273774 View attachment 4273775
Have the same prblems and no idea whats happend(((((((((:cry::cry:
 

raggyb

Well-Known Member
There's always something that's going to go wrong. I just potted some clones with nice looking roots and today they look like complete shit.
they're looking somewhat better, I draped them with some saran wrap and got the humidity up.
 

AOC

New Member
Is it true a little mix with hydrogen peroxide helps prevent and kills mold plus bacteria? If so what is the recommended mix with water please.
 
No two gardens are the same, forget what you read and learn to read your plants.

If you have a robust, effective root system, a RH of 20% is fine, all other factors considered. In fact, that kind of RH during latent flowering with indica doms is a blessing regarding possible bud rot or fungus issues.

Good luck,
UB
I found as a new grower a lot of things i read are decent guide lines to go by but i have different strains in exact same condition with different results. I have 2 lemon thunder same conditions different results. Seeds are important. Thanks for conversation
 

markash03

Member
I made a post today , i don’t know what is making my leaf dying/burning. If you guys could check it out and give any help i'll highly appreciate please.


some images.
 

Attachments

Papazuki

Member
Thanks Dirtfree.



Potbound plants usually exhibit signs of slowing growth, stunting, as opposed to moisture stress which is expressed via leaf cupping.

I bet I could take 50% of the groans of the last couple of pages here and attribute some or most of the problems to moisture stress or improper watering issues.

Uncle Ben
:clap:
 

april_20

Well-Known Member
Hi guys, I am a new grower here and this is my first time growing indoor.

Currently my delahaze seedling is growing its 2 paid of leaf, but it grew abnormally and curly20200414_154028.jpg

Please help me, I am do not known what caused it.

Thank you
 

raggyb

Well-Known Member
Hi guys, I am a new grower here and this is my first time growing indoor.

Currently my delahaze seedling is growing its 2 paid of leaf, but it grew abnormally and curlyView attachment 4533257

Please help me, I am do not known what caused it.

Thank you
i had 2 mutant runts one grow and one looked like this. probably in a week or two you'll know if it will snap out of it. if this is the only one you have drop a few more just in case.
 

april_20

Well-Known Member
i had 2 mutant runts one grow and one looked like this. probably in a week or two you'll know if it will snap out of it. if this is the only one you have drop a few more just in case.
Has your seedling grow complete sets of leaf?

I think I will try to water it less, they said over watering could be the cause, I hope so too
 
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