pistils turning brown and leaves having issues on 25-th day of 12/12

BP75 · Jun 30, 2015

[FONT=Arial, Helvetica, sans-serif] Hello You all guys...
i nedd some help asap please...
i have experienced a problem with the babies.... if anyone is willing to help is welcome...
i have been working literally 18h per day lately and i let them dry a little to much...
i recall i am growing in 3.5 gallon coco hempys but they went 5 days without water... i did not notice any signs of underwatering but two days ago i saw what looked like a nute burn to me...last feeding was 5 days ago and i fed them a 850ppm nutrient solution of GH Flora series of 10ml Micro+8ml Grow+13ml Bloom...it was the last transition feeding planned and today i wanted to feed full bloom nutes of 10ml M+5ml G+ 15ml Bloom but instead since i noticed this signs...look @ the borders of the leaves...
it looks like over ferilization to me... but i am no expert and it maybe something else....

i reduced today feeding @ 430 ppm like 50% strength....
now, i don't know what this maybe so.... i'm asking for some HELP...
maybe i should flush them again with some good ph-ed RO water to clean everything up and then start feed full bloom nutes but i don't know so i'm open to advise...
some overall foto of may canopy and my scrog attempt... which could have been better but since this is my first grow i'm just learning first hand what growing and scroging is in practice.

i did some defoliation but i think i'll need some more in the next days ... i just need them to be happy first before i stress them by chopping their leaves.
Last questio
Is it normal for pistils to turn brown while the plant is in flower and the buds are forming?
i see that in some of my flowers ,pistils , are turning brown... like they were also burned... could this happen?
What cause this?

Thank u all.

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BP75 · Jun 30, 2015

i don't know why the text came white in the first post... you need to select it to be able to read it....

siftedunity · Jun 30, 2015

id say its toxicity due to letting the coco dry out too much. but either way imo, once you frazzled the roots in coco, they are never gonna recover that root mass to flower out properly after that. when coco gets too fry the roots just turn to dust.
5 days is a long time without water in coco.

BP75 · Jun 30, 2015

i just want to understand what may be causing this rusty patches along the borders of the leaves...
take the time to reply please...
https://www.icmag.com/ic/attachment.php?attachmentid=323024&d=1435538140
https://www.icmag.com/ic/attachment.php?attachmentid=323025&d=1435538140
overall they don't look that bad....
they just have this light yellow colour in some of the branches (especially the one on the left)
which is not that healthy green i see in the bigger branches
(mainly the plant on the right)
https://www.icmag.com/ic/attachment.php?attachmentid=323027&d=1435538140

but i don't understand why pistils are turning brown in the flowers...
weren't they supposed to be white and growing until harvest time....
take a look .... maybe this is a sign of overferting??? maybe it is potassium def. ? maybe they just need more food?
since i've never fed more than 850ppm?what do you think????
https://www.icmag.com/ic/attachment.php?attachmentid=323029&d=1435538380
https://www.icmag.com/ic/attachment.php?attachmentid=323030&d=1435538380

BP75 · Jun 30, 2015

siftedunity said:
id say its toxicity due to letting the coco dry out too much. but either way imo, once you frazzled the roots in coco, they are never gonna recover that root mass to flower out properly after that. when coco gets too fry the roots just turn to dust.
5 days is a long time without water in coco.

they are in hempy bucket style so.... i hope they survive...
really annoyed to hear this : once you frazzled the roots in coco, they are never gonna recover that root mass to flower out properly after that .... but thanks anyway for your response...

@ this point...do you have any advice on what to do or how to see if they are damaged to the point of not recovering...
thanks man.

siftedunity · Jun 30, 2015

im sorry if it has annoyed you im just speaking from experience..
i didn't mean to damn your grow. ive never used hemppy buckets i hand water or use drippers so have complete control over watering..

the best thing to do if they dried out a lot is try to check out the root system.. thick, pearly white roots are what you wanna see.. if you check and they are all brown and visibly breaking down i would literally cull the plant and start again. some times the root mass can recover but will take time. too much time and stress if you are trying to flower it.

if the roots are healthy then its just a case of perhaps a flush and then feeding with the correct amount of nutrients etc.. checking the roots would be my first concern..

BP75 · Jun 30, 2015

siftedunity said:
im sorry if it has annoyed you im just speaking from experience..
i didn't mean to damn your grow. ive never used hemppy buckets i hand water or use drippers so have complete control over watering..

the best thing to do if they dried out a lot is try to check out the root system.. thick, pearly white roots are what you wanna see.. if you check and they are all brown and visibly breaking down i would literally cull the plant and start again. some times the root mass can recover but will take time. too much time and stress if you are trying to flower it.

if the roots are healthy then its just a case of perhaps a flush and then feeding with the correct amount of nutrients etc.. checking the roots would be my first concern..

don't worry man... i know you were trying to help and i appreciate it...
i'm going to check the roots tomorrow... before feeding them...
and i'll let you know...
thanks again.

siftedunity · Jun 30, 2015

cool, let us know how the roots look..

BP75 · Jun 30, 2015

i thought i can check the upper part of the root system....
when i filled the buckets i was short on coco so i decided to use some clay pebles on top... this favored the growth of roots in the surface of the coco... the health of these part of the roots should give an indication of the general health of the root system...
they look like this...

still hairy and white... it looks good to me...
what do you think?
buds with a good portion of pistils turning brown look like this...

it looks like some of them are continuing to shoot new pistils but i'll have to wait to confirm this...
having the fan blowing @ them from 2inch distances may have affected the pistils and made them turn brown/die.

siftedunity · Jun 30, 2015

sorry but those roots look like they have had it. and the medium is still way too dry.
those roots look withered up. its up to you if you want to continue flowering them, if you do, you need to keep the medium a lot more moist. and you may want to flush the medium through with half strength feed. what ph are you mixing the nutes to?

BP75 · Jun 30, 2015

siftedunity said:
sorry but those roots look like they have had it. and the medium is still way too dry.
those roots look withered up. its up to you if you want to continue flowering them, if you do, you need to keep the medium a lot more moist. and you may want to flush the medium through with half strength feed. what ph are you mixing the nutes to?

well shit, they looked similar to always to me, thats why i thought they had resisted the dry days....but anyway i have no experience so i'm taking this statement of yours about the roots for the truth...unfortunately this happend so let see if they can recuperate or not.
i'll unpot them today to see them better... i hope they are not really fucked up...
i'm ph the nute mix @ 6.0 for now...
i will continue to flower them , the worst case scenario is i will not get any buds but i will gain some more experience...
i'll let you guys know. thanks

Mikell · Jun 30, 2015

The browning pistils is most likely a response to the dry cycle, recently had the same happen during an unplanned for trip out of town. There are a number of factors than can brown pistils, the most alarming being pollination. It would be prudent to check for male flowers if you are going to continue with the cycle.

The dry cycle raised substrate EC, giving you those burnt tips (unless they were present before). Most of the brown spots look to be early K deficiency, though one pic looks like early Ca.

Maintain 1.0-1.2 EC on whatever feed you're using, ppm measurement only makes sense if you give the scale used. I've never run Flora, but I'm believe most drop Grow by now.

Poke around the coir subforum for more specific advice. I agree with keeping the cycle going. As you said, it's an experience.

BP75 · Jul 1, 2015

hello guys...these are the roots, or the root system....

they seem perfectly healthy to me... what do you think...
i fed today and will feed more frequently i noticed they are drinking a lot this period....so maybe every day feeding is the best option....
i'll keep you up to date.
thanks.

siftedunity · Jul 1, 2015

yeah they dont look awful. im anal about roots so i would probably start afresh but its your call. im sure theres a root porn thread on icmag somewhere for reference. id defo say daily watering..

BP75 · Jul 1, 2015

Mikell said:
The browning pistils is most likely a response to the dry cycle, recently had the same happen during an unplanned for trip out of town. There are a number of factors than can brown pistils, the most alarming being pollination. It would be prudent to check for male flowers if you are going to continue with the cycle.

The dry cycle raised substrate EC, giving you those burnt tips (unless they were present before). Most of the brown spots look to be early K deficiency, though one pic looks like early Ca.

Maintain 1.0-1.2 EC on whatever feed you're using, ppm measurement only makes sense if you give the scale used. I've never run Flora, but I'm believe most drop Grow by now.

Poke around the coir subforum for more specific advice. I agree with keeping the cycle going. As you said, it's an experience.

i agree with you 100%...
i still don't believe they have nothing to give...
i know they most probably will not produce the most perfect wealthy buds but i think they still can give something back...
it is a challenge for me to make them produce something decent after all these struggles
i also think the rusty spots are some kind of mix between potassium def. and some cal-mag issue caused bu the dry cycle...
what you said about the raised EC was confirmed today when i fed... i fed a mix of 700ppm and runoff was 1100ppm...
the much talked about salt build up in coco if let dry to much... this is the proof first hand...unfortunately....
i'll flush them tomorrow, with ph RO water....
then feed with 50% nute mix.... and then go from there....
i think/hope this helps....
what do you guys think....
better shots of the roots...

thanks again for dedicating your time to this grow.

BP75 · Jul 1, 2015

siftedunity said:
yeah they dont look awful. im anal about roots so i would probably start afresh but its your call. im sure theres a root porn thread on icmag somewhere for reference. id defo say daily watering..

thanks Sifted...
'i'm with you... definitely every day watering...from now on...
let see how resilient these babies are...
checked for balls everywhere ... no signs... yet.

siftedunity · Jul 1, 2015

i did say in my first post that it was toxicity due to the repeated drying out. tbh growing is all trial and error. i still make errors, but as time goes on you will learn to read your plants. its something that's hard to teach but you will pick things up on the way. theres lots of experience on this forum and always peeps to help out so your good.
i hope they do make a good turn around, id like to see a full recovery!

BP75 · Jul 1, 2015

thanks Sifted for the kind words...
i will flush tomorrow....like i said ...i noticed the runoff EC was almost 40% higher that what went in when i fed today...(fed 700ppm and got 1140ppm runoff)
the drying out of the coco gave this well known side effect(salt build up...)
i'll continue from there then....
i knew i'd make errors but i didn't think it was going to take me this much to get to know what the plant needs are...even if i read and am reading a lot.
i'll keep you up to date and lets hope they make a good turn ....
i think they will show it in the next 7 days.... if the buds swell and get bigger they are good... if not ... next time will be better...

as long as RH DrFever... it has always beeb between 40-60% in veg and since flower it got down to 35-50% which is good as far as my knowledge tells me...
maybe the fun blowing straight at them from 2 inch distance caused the pistils to brown early... the drying also has been a major factor together with the tocixity caused by the jump in EC..
i hope the measures i am about to take help...
thanks guys.

Grow Tech · Jul 1, 2015

Last time I had premature pistil browing...it was the dreaded Broad Mite. I hope that's not your issue

siftedunity · Jul 1, 2015

^please don't mention broad mites. sends shivers down my spine lol i wouldn't think it was a pest problem, you know what you have done wrong with the under watering and i would expect that to be the problem. and yep a fan too close will possibly dry out the pistils and kill a few off. with a fan, you want to have as much the the canopy moving as if it was blowing in a gentile breeze. don't over do it

pistils turning brown and leaves having issues on 25-th day of 12/12

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