Day 43 yellowing.

[savoy]

This is my second Purple Mazar in recent history to start going yellow at day 43, seemingly over night. The first time I wrote it off to a fast finisher, but 2 in a row doing the same thing seems a little odd. Ive grown PMs plenty of times and they are a 70 day from sprout plant, every time.

Here's the stats:
Sunshine #4
trio
HPS for flower (450 watts 18" from canopy)
temp: 82ºƒ
6.5 runoff ph (I calibrated my meter to be sure)

4-5 days ago I did a full flush in preparation for flower feeding regime, the last watering can had 1.5 tsp grow big, and 1 tsp cal mag to leave something in the soilless after the flush. It started going slightly yellow on large fans. Last night it got 2tsp Big Bloom, 1 tsp Tiger Bloom, 1 tsp Cal Mag. This morning more yellow on large fans, and yellow starting on secondary fans. The same exact thing happened a few weeks ago to another plant on the exact same day, but I didn't flush at all. The reason I flushed this time is I thought I had lockout from salt build up last time and though I'd do something different this time. Is this the start of end of life cycle, or am I doing something wrong?

Please help, I am doing a constant grow and want to figure this out before I end up here again in 3 weeks with the next generation.

Thanks for any input!

 

[namvet25]

It looks like natural yellowing towards end of life cycle.She's using the energy for flower growth from the leaves.Shouldn't be a problem.:thumbs:

 

[savoy]

It looks like natural yellowing towards end of life cycle.She's using the energy for flower growth from the leaves.Shouldn't be a problem.:thumbs:

Thanks for chiming in. Thats what I suspect, but just seems a tad on the early side, so I'm worried Ive just been off.

 

[namvet25]

I just realilized she is only 43 days a little early for yellowing.The only other thing the whole plant looks a little pale that might be a nitrogen def.You could give her a lite dose of nitrogen and see if she greens up.:smokebuds:

 

[savoy]

I just realilized she is only 43 days a little early for yellowing.The only other thing the whole plant looks a little pale that might be a nitrogen def.You could give her a lite dose of nitrogen and see if she greens up.:smokebuds:

It got fed with an N-P-K of 2-8-4 last night.
I mixed up some super light veg feed and gave foliar feeding a shot during dark cycle.

 

[gettingreen]

run off could be a bit high also. 5.8 to 6.5 is ideal. and if your meter is 1 or 2 points off on the high end... depending on the strain, they may like a lower soil ph. try to get it down a bit. your last grow with this strain was your run off the same also? I bet it was.. could be a strain that likes the soil more alkaline soil. also mag is a very common issue here. what are you using for your foiler feed?

 

[Sticky Trichome]

It got fed with an N-P-K of 2-8-4 last night.
I mixed up some super light veg feed and gave foliar feeding a shot during dark cycle.

y is it u gave ur flowering plant a foliar feed? just askin... holler

 

[namvet25]

He is trying to green up the leaves and foliar feeding absorbs the nutes much quicker than soil feeding,It won't hurt the flowering at all.

 

[savoy]

y is it u gave ur flowering plant a foliar feed? just askin... holler

Grow Big, like 1/8 tsp in 16 oz water.

I think what's happening is I had a lot of luck with my first few grows, the terrible luck with a couple. So my routine is all jumbled up trying to figure it out to the point where I forgot what went right the first few times. New grow space, never did soil-less before, never constant grow before. I'm still working out the kinks

 

[savoy]

y is it u gave ur flowering plant a foliar feed? just askin... holler

It recieved flower feed last night then got worse. I was under the impression that foliar is sort of an emergency consideration, admittedly I'm not very well versed in it.