dying plant? whats wrong?!!

im growing 10 Northern lights autos and never grown before so im tryin to learn as much as possible for my next grow, so far im exactly 2 weeks into the grow and all are looking ok apart from one which looks really unhealthy and considering its one of my biggest i thought it would correct itself but its been a week and still no change.

i found her a week ago lying nearly flat on the soil and shes got a slightly yellowy stem

as for the rest they are doing fine i think and ive not treated this one any differently from the rest. heres some of the others... all these pics were taken on day 9 under a 600w hps. any help would be great, thanks

I hope that light is as high as it will go. One looks like its curling to protect itself. They dont need alot of light at that age.

Could be an heat issue, and also when you water make sure you water the whole pot, not just under the plant. The roots are spreading, and will not want to grow where there is no moisture.

if roots look like getting thinner, might be over watering problem. Bur they look healthy right now.
the key is you shoudnt bother them alot

Well at the mo I dont have a filter in there so the temps are very high, way too high to say the least sometimes hittin 38 degrees/ 94+ Fahrenheit and the light is around 18 inches maybe a lil more above the plants. I'm watering PH balanced water and last time I watered was 3 day's ago at around 200-250 ml per plant, today ive done the same but around 500 ml each, I think they really needed it! Probably takin my eye off the ball a lil to much but thank you very much for your responses it's much appreciated!!

Looks like heat but also you need to learn to WATER YOUR WHOLE POT, not just the surrounding area where the stem is..... That'll lead to issues itself in the long run.

Whats the room temps been? Whats the ph of your water? Whats are you feeding it? Are you feeding it? You need to learn to give more detais. We need to know your grow environment not just certain variables that you believe is important..

Also, try not to take this the wrong way. But you really should of did as much research as possible before growing. You will never know what you need to by making help threads cause your plants are dying and you dont know what to do next. As well going with auto's the rate your going your not gonna get even 10 grams dry off each plant especially in those small pots.
Guess you figured you would transplant to bigger pots? You dont do that with Auto's theres a couple ppl on here i know have done that and had good results but they have been on here for a while now and have experience under their belt and transplanting is gonna cause stress which is gonna hinder your plants growth.

i thought it would correct itself but its been a week and still no change.
DONT EVER DO THIS ^

hey jeffdogg! no mate no offence taken! this is my first ever grow and yea i did do a fair amount of research although it sounds like ive done none, i got most of my equipment together before i started but without a carbon filter,i got impatient with waitin to save some cash and started anyways....BIG MISTAKE!! sooo....im usin a 600w hps in a 6ftx3ftx6ft closet, everythin went well til a week after they went under lights, no im usin no nutes atm, i do have bloom nutes for later in the grow but this is essentialy a trial and error run and ive learnt a lot so far! room temps are averagin around 31-36 degrees which is ridiculously high i know, and keepin water ph levels at 6.3-6.8 altho i tested the soil today and it was nearer 7.5 :/ absolute noob here mate n just tryin to learn the basics, thanks a lot for your info

il add my pics from today on in a sec....

the first 2 is the one with serious problems! ive used a splint to hold her up for the time being and hopin maybe she will straighten out? the rest i think is ok?? what do you think?

Well im gonna link quite a few videos i want you to watch, very great info just grab some bud kick back and have a nice evening. I promise you will get a better understanding after you watch these.

SeeMoreBudz Vol 1,2,3 (will have to find the full version of Vol.3)
Vol.1 http://www.youtube.com/watch?v=N8rl3TyFpWk
Vol.2 http://www.youtube.com/watch?v=1mgBJj8VTK0
Vol.3

Ready set grow Vol 1,2
Vol.1 http://www.youtube.com/watch?v=dECnYjf5ABQ
Vol.2 http://www.youtube.com/watch?v=t4cVmGCrJ6g (7 parts)

Jorge cervantes ultimate grow Vol 1,2,3
Vol.1 http://www.youtube.com/watch?v=I-dkX6dsEHQ
Vol.2 http://www.youtube.com/watch?v=MY66GdaQb4Q
Vol.3 http://www.youtube.com/watch?v=mYxVrE6mLM4

Seriously those vids will be the keys to your success, at least to get ya started. You can always post in here i dont go into too many threads but frequent a couple.

https://www.rollitup.org/auto-flowering-strains/652871-advanced-autoflower-training-tips-secrets.html

beaves IOW said:

the first 2 is the one with serious problems! ive used a splint to hold her up for the time being and hopin maybe she will straighten out? the rest i think is ok?? what do you think?View attachment 2660476View attachment 2660477View attachment 2660478View attachment 2660479View attachment 2660480View attachment 2660481View attachment 2660482View attachment 2660483

Click to expand...

Do you have to keep your plant tied up like that to keep it standing? If so is anywhere on the lower stem starting to suck in like a straw kinda?

Also in some of those pics it looks like there a little browning in the leaves. Is that correct?

Without a doubt il check these vids out! Thanks a lot fella!
No I dont see any part of the stem sucking in at all and yes it needs to be tied to stay upright all the time.
As for Browning on the leaves ive checked thoroughly and no browning at all, I think it's just the lighting making it look like that

Cheers mate!!

IMO the best thing to do, i'm not sure if you intended on transplanting or not, but it might be the best thing at least for that one. That way you can make a hole in the new pot deep enough to cover the majority of that stem. It wont need support that way and the bare stem will begin to grow roots from it as well. The first couple weeks, the first week anyway I usually use cfl's or floro's it'll save them from the heat when it gets too hot in the grow room it makes it hard for the plants to breathe. Giving them some supplemental Co2 into the air will help them in higher temps This is my first AF run im doing ive grown many harvests though just not AF . For your soil if you add about tsp/gal of dolomite lime i believe it will make you soils PH neutral (keeps it at 7.0). They will mention that in a vid or 2 i linked

No I didnt plan on re-potting as ive heard so many ppl say you stunt growth and diminish yields, to be honest I think this run is a lost cause because of my impatience in sorting the grow room out with adequate equipment like proper ventilation and watchin a few of those vids! Il probably carry on to gain experience from this and next time in a couple months do it as professionaly as i can! Bigger pots, good carbon filter, learn to PH test properly etc etc lol thanks a lot for your help mate it's much appreciated and il keep updating to see how it turns out!

Your temps are easily 20 deg F hotter than you want.

Do you have a fan circulating air in there ? I would advise putting in an ocillating fan to make your plants gently sway - this will strengthen the stems quickly.

Ditto on the watering advice.

I see what looks to be your light ballast setting in there - if that's the case, move it. They generate a fair amount of heat so it's compounding your temp issue.

I know ya want the hps lighting and all but until you cool it better you should try considering the cfl's, get like 10. Theres bulbs tailored for veg and flower stages, some sites will let you mix and match.

http://www.htgsupply.com/Product-6-Pack---25-Watt-Compact-Fluorescent-Bulbs.asp

http://www.hidhut.com/26w-cfl-spiral-energy-saving-light-bulb-5000k-vegetative-p-1409.html

http://www.hidhut.com/26w-cfl-spiral-energy-saving-light-bulb-2700k-flowering-p-1410.html

If you go to some garage sales you will come across cheap lamps (usually between $1~$2), strip them for the cords and sockets and either hang them around or make a board with them staggered around. a 6'x3'x6' isnt going to be easy to cool unless you get a good hood or cool tube with the proper CFM fan pushing the hot air caused by the light through it. For a 600w hps i'd suggest a 300+CFM inline fan attached to the hood. Then get a nice CLEAN osculating fan to blow over the tops of your plants to help with the radiant heat.

Bad mamma jamma - http://www.htgsupply.com/Product-Big-Daddy-Reflector.asp

Oh yeah not sure how much it will help. But if you take a bucket, fill it up with water. Then place a washrag/handtowl over the water and just let it sit on top soaking up the water. Have a fan blow over the top and it works like a poor man's air conditioner. Also if you feel like playing Mr.Wizard go get yourself some baking soda and vinegar (i'd recommend white distilled the regular smells nasty). Get yourself a good size bowl and put it in the middle of your plants (preferably right over the top of them just a tad) put a few tbls. of baking soda in the bowl and poor some vinegar in it. That produces Co2, if possible once an hour in those hot temps would really help them out.

http://www.lightbulbemporium.com/68w_spiral_cfls.asp
first one on the list will half ass veg one plant 4 of these will handle 6 small lst plants if hung evenly spaced over the 6 pots and plants were rotated outside to inside daily if not twice a day it would give you a few weeks before you really needed the 600 w