Lowryder 2 yellowing from bottom up...

[sladOs1]

I'm having a few problem with my LR#2 that I hope someone can help me out with......

It's a LR2 growing in soil, under 125w of CFL, now on day 44..It's in a 1 gallon pot in a small closet...
Lately it has had the leaves gradually yellowing from the bottom up, after a while the leaves dries out and shrivels up.I've come to understand that this might be due to the transition from veg to flowering nutes and the resulting lack of nitrogen/the plant using up the remaining nitrogen.
Despite this I really want to make sure that this will not affect the yield and potency in any way...
A few pistils are also showing signs of browning (see photos) but I guess this might be a natural step in flowering as well....there is also a few of the small leaves surrounding the pistils at the top that have been browing a bit..any advice or reassurance would be greatly appreciated

 

[mitchyboy89]

Its natural to lose the nitrogen in the lower leaves at the stage you are at. They will eventually start to fall off here and there too. Your plants seem like they are too close to the light aswell

 

[sladOs1]

Thanks for the reply I've come to understand this as well but I just want to make sure that the yellowing isn't something that I really need to fix..like a deficiency or anything.
The plant is and has previously been a bit close to the light and that is why I have had to tie down the main cola...should I tie it some more since it's almost touching the light again?

 

[mitchyboy89]

Hey, I suggest you avoid the plant getting too close to the light

 

[sladOs1]

I think I'll do that...thanks for your help, much appreciated

btw...do you think the browning of the smaller leaves at the top is due to light burn?

 

[MynameStitch]

Yes, the leaves up top are getting too much heat which is curling up.

The lower leaves is a magneisum problem, not nitrogen it looks like nitrogen, because the problem has gotten so severe that the entire leaf has yellowed making it mask like a nitrogen deficiency, if you notice all the other leaves you will notice the veins are green on the affected leaves and with a nitrogen problem you can at least still see some of the veins even if it's severe.

what nutes are you using and how much? What kind of water are you using? bottle?
Hope it does not have sodium in it if you use bottled water....

 

[sladOs1]

Yes, the leaves up top are getting too much heat which is curling up.

The lower leaves is a magneisum problem, not nitrogen it looks like nitrogen, because the problem has gotten so severe that the entire leaf has yellowed making it mask like a nitrogen deficiency, if you notice all the other leaves you will notice the veins are green on the affected leaves and with a nitrogen problem you can at least still see some of the veins even if it's severe.

what nutes are you using and how much? What kind of water are you using? bottle?
Hope it does not have sodium in it if you use bottled water....

Hi, thanks for the infoI had been thinking of Mag deficiency being a possibility also and now it seems that it's confirmed...
I'm using something called Substral which is a fertilizer for flowering with an NPK of 4-2.2-5
Seems like my problems started after I switched over to this fertilizer around week 4..before this I had been having a short stint of nute deficiency/low nutrient level in soil due to flushing the plant at the end of week 2.This was corrected and everything looked good up until I started feeding the plant this bloom fertilizer... since then the plant has been gradually yellowing from the bottom up...
I've actually been using tap water since it (the water) is very clean where I live...could this be a problem also?Haven't seen any signs of this affecting the plant negatively during veg...

Now that I look at the back of the bottle of fertilizer I can't find it having any Magnesium in it at all......would adding some possibly correct this situation?

 

[MynameStitch]

Yes, adding some with defiantly fix the problem, clean water most of the time has low micronutrients in it, also called "soft water".

I would get some epsom salts and use 1/2 teaspoon per gallon and mix it every time you water your plant.

When cannabis shift from veg to flowering many strains are magneisum whores and need a bump up of the micronute. In veg they need it, but not as much as in flowering, the amount of nutes they need is different in flowering and the way the nutrients are transported in the plant is different from veg to flowering.

In flowering magneisum can start at the tops of the plant where you will not see it affecting tops of the plant in veg, you only see in the bottom to middle part of the plant.

 

[sladOs1]

ThanksNow I know what I need to do and I'll get on it first thing tomorrow....this thing has been bothering me for days now, only hope I'll be able to locate some epsom salt...I'll let you know how it goes!

 

[sladOs1]

Went to the pharmacy today and they didn't have any Epsom salt in stock so they had to order in from another town...I'll probably have my 100 gr of Epsom on thursday or friday, hope that this delay will not do any further significant damage to my plant...

 

[sladOs1]

Finally got my Epsom salt and I diluted it to your specifications, crossing fingers and hoping this will fix this issue...thanks again
Plant is progressing nicely with the budding and all though

 

[MynameStitch]

Great, remember affected leaves won't heal look for other leaves to see if it's spreading, which I doubt it will now, but just for reference

 

[sladOs1]

I'll keep that in mind, seems like the problem has been corrected....thanks again for all of your help

 

[sladOs1]

So, it seemed like I was out of the woods for a while...nothing yellowing as rapidly as it had etc. but I'm beginning to have my doubts and I think that I might be having a lockout or something..
I have been cutting off all of the dead/brown leaves and it's starting to look kinda skinny.The budding is doing fine except for two of the biggest colas that seem to be strangely immature especially at the top (very green, almost no white/brownish pistils like the rest of the smaller buds have...).
Shouldn't the biggest colas that are getting the most light be the ones that are farthest along in flowering?This problem is only present at the top of these two colas as they are doing fine a bit further down..
Two first attachments are of the whole plant and one of the colas that seems to be very slow in flowering, the last one is one of the smaller colas that is progressing nicely but you can still see the yellowing of the leaves creeping slowly upwards...

Should I flush or could this possibly damage the plant (currently on day 54)?I think I'll have to check the ph of my run-off as well as it's been a while since I did this...last time I checked it was around 6.0-6.2

 

[medi-useA]

I have also had the mag def prob with my LR#2's Epsom Salts fixed it for me...I use it always with my LR#2's now...not a prob since...


muA

 

[Crush]

Leaves at top are getting too much heat. Seems like a tad too much nutes reulting in a very mild burn. careful if the plant is too dark green in the healthy areas.

Bottom leaves don't warry about them. Let them shrivel off and fall.

I wouldn't put any other aditives in.

 

[sladOs1]

Thanks for the advice and observations.....as I see it from what Stitch and others have said I definetly have a Magnesium deficiency problem, the only thing I'm worried about is if I'm just feeding it water with Epsom salt to no avail, meaning that I'm worried about a potential lockout situation since the plant hasn't improved as much as I'd like...
So, would flushing the plant do more bad than good at this point?

I have also tied the plant down further, allowing more light getting to the lower branches and at the same time avoiding the light burns....I felt the top leaves and they were actually kind of "crisp" so I hope this will fix that problem.

And to "medi-useA", how long does your lr2's usually take from seed to harvest?I've read so many different accounts that I'm actually getting a bit confused about what to expect....

 

[medi-useA]

sladOs1...between 65 and 80 days..jepending


muA

 

[MynameStitch]

Anytime!

 

[sladOs1]

sladOs1...between 65 and 80 days..jepending


muA

ok, do you flush before harvesting?I've read that people usually start flushing a week before they harvest but I'm not sure how to go about this....
Is one simple flush a week before harvest enough or should I flush more than once during that last week?
I'm thinking I need to flush the plant asap anyway seeing as the plant doesn't really seem to absorb the Epsom salt that I've added to the water.....
I shot a photo of a yellowed leaf yesterday and I then shot another one of it today and it was pretty obvious to me that it's only getting worse....more yellowing and slowly browning/withering.
Hope you guys don't think I'm asking too many questions...I just want to do this the right way