growMEDS' medical perpetual grow - DR60 & DR80

[VerdantGreen]

hi gM - looks more like nute burn than light burn to me

i keep my 50 about 6-7 inches above the tops

on your plants its doesnt look like the highest bits are burned which would be the case if it was the light. (although i agree with mist you should move the light higher to widen the footprint.)

what strain is it? have you just repotted into new compost? how strong are the nutes you are using??

V.

 

[growMEDS]

I'm watching the stretch closely now - I moved the light about 2" from canopy for now. Once I know they won't stretch much more I will move the light up a good 6".

The strain is Menage a Trois by MOD. These have been in 1 gal bags since veg and should be pretty root bound by now.
Nutes have not been too strong I don't think. I feed all 4 the same.

 

[growMEDS]

Damn - can't edit post - big bloom has gone up to 1tbsp/3tsp per gal. Most feedings were at 2tsp per gal.

 

[VerdantGreen]

hmmm if they are potbound then it could be a deficiency - perhaps phosphorous
is there a blue / green tint to the leaves??. P deficiency is often misdiagnosed because it can look like nute burn.

i would repot them mate - they probably need it and it may also sort out your problem.

might be worth posting in the infirmary board too?

V.

 

[growMEDS]

Yes some coloration looks blueish purple and the leaves are pretty dry and crispy where it's happeneing.

I don't have anything to transplant these into (pots or soil)

 

[VerdantGreen]

ok then put some saucers under the pots and give them a liquid feed with bloom. leave the plants standing in the saucer of runoff for a few hours or overnight - that should help them soak it up enough. it's a good tecnique for potbound plants and it is almost impossible to overwater them

i would try and get some bigger pots and repot in the next few days though before the roots stop growing. when did you flip them??

 

[growMEDS]

Today is day 10 of 12/12.

If the roots stop growing - doesn't the energy go toward bud production?

 

[VerdantGreen]

i would still repot them into a slightly bigger pot 2 gallon or whatever you can find asap

If the roots stop growing - doesn't the energy go toward bud production?

not really. budding is when you are asking the plant to do of it's very best for you. to do that it needs light and nutrients. if there are insufficiant roots or space for those roots then you are limiting the nutrients the plant can take upand you are going to pay for that in bud weight.

i think it's always best to repot just before or when you put them to 12/12 - then the plants arent going to go hungry or be stunted by too small a pot. given that pots and soil are pretty cheep and easy compared to electricity it's a bit pointless to let that be a limiting factor.

the root growth slows down after 2 or 3 weeks flower so you still have time to repot.

V.

 

[growMEDS]

The problem was I let them veg too long so they've been in 1 gal longer than expected to finish.
I will try to find pots and soil but my current situation is very limited so I don't picture it really happening.
I would usually transplant to 1 gal just a little before 12/12. This was my mistake doing perpetual and having to veg too long.

 

[VerdantGreen]

in that case then you should probably keep doing that saucer trick when you water and keep feeding them regularly - im sure it'll work out fine. one of the jobs of those big fans is to feed the plant when it cant get the nutes from elsewhere so they are doing their job

 

[growMEDS]

I think I regulary water close to what you're saying.

I put each bag in an 8" wide by 4" tall pot and water/feed in there so it sits in the water or nutes for a good 5-10 minutes each.

The 2 that this is happening to aren't drinking as much as my other 2.

 

[opt1c]

those leaves that look jacked up happen to be next to the fan? looks like wind burn to me

i've seen a lot of light burn; playing with digi 1000s in tents will do that for ya

it tends to hit the edges of the top fanleaves first; they'll curl down and away from the light and then they start to cook and get crispy like in the pic above; but i've noticed that if errant fanleaves grow too close to one of my oscillating fans the leaves will look as they do above

i'd move your temp probe around in the tent to make sure that the air is circulating everywhere and the canopy isn't creating hot spots; microclimates within microclimates type thing...

if the new growth isn't effected at the tips at all than it is not nute burn in my experience

hope that helps

 

[growMEDS]

Ohhh - the pictured one is close to the fan!!! That could totally be it.
I'll fix that asap when the light turns on.

I only have a 250 so I don't think there are too many hot spots anywhere with the fan blowing under the light. Damn fan!!

 

[Hella THC]

wtf... wind burn? Please explain how this is possible, I don't understand. I'm not saying its not the problem, I've just honestly never heard anything like it.

 

[Seismic]

Sounds like the fan may be it gMed. I have had a few plants get necrosis on the leaves like that, either when the tower fan was on too high when they were young, or when the tower fan is placed directly next to the plants. So who knows, it's worth a shot to cut the dead growth off the leaves, and see if it it progresses at all with the fan placed elsewhere. Good luck

 

[opt1c]

Hella THC; i'll try to get some pics of ugly leaves for you.... placing a plant next to a 16" oscillating fan that is running; even on low; can cause it if it's close enough to the plant... only seems to affect fan leaves and not buds; i usually just prune the branches near the fans cuz i don't like ugly plants... i have a lot of air movement in my room to avoid any mold issues and i'm running sealed with co2 so i get wind burn all the time... dunno the actual chemical reactions that are occurring on the biological level if any but that's what the leaves look like when it happens

 

[growMEDS]

Thanks alot for the info bro! I raised the light and fan up a couple more inches.
I'm going to move the exhaust fan on top of the tent to have more room to raise the light too so I have more room to move it up again soon.

 

[Seismic]

Sounds good dude, be sure to let us know if the prob continues to progress.

 

[growMEDS]

Will do! I cut about 40% of the crispy off. Raised the light & fan. Watered.

 

[VerdantGreen]

wind burn! - as soon as i saw opt1c's post i thought he must have called it!

sorry if i've led you down the wrong track with your problem gM. but that saucer/pot trick will still come in handy as they go through flower in those pots - dont be scared to leave them in for a while especially if you see them go hungry

cheers

V.