Stealth cab closetmaid 2 door

[pumpkinpie eyes]

Looks great!

 

[repuk]

Ah! I didn't see any necrosis...Very bottom leaves get their nute storage used and then fall off, the plant focuses on new growth and budding.

If the plants were overfed, leaves tips would curl downwards, looking like claws.

Yours look lush green, leaves are perky and look like ironed out, sign of "wellbeing"

Post a detail pic...

 

[jonhova]

Necrotic leaf tips possible nute burn

Necrotic leaf tips possible nute burn

 

[repuk]

I'm not an expert by any means... but my first thought would be a potassium defficiency: mature leaves tips burn/necrosis, curl upwards, yellowing and falling off)

Could have been caused by too high PH, tap water being too hard, soil being too hot...

From the Infirmary:

Potassium Deficiency

The onset of potassium deficiency is generally characterized by a marginal chlorosis progressing into a dry leathery tan scorch on recently matured leaves. This is followed by increasing interveinal scorching and/or necrosis progressing from the leaf edge to the midrib as the stress increases. As the deficiency progresses, most of the interveinal area becomes necrotic, the veins remain green and the leaves tend to curl and crinkle. In some plant such as legumes and potato, the initial symptom of deficiency is white speckling or freckling of the leaf blades. In contrast to nitrogen deficiency, chlorosis is irreversible in potassium deficiency, even if potassium is given to the plants. Because potassium is very mobile within the plant, symptoms only develop on young leaves in the case of extreme deficiency. Potassium deficiency can be greatly alleviated in the presence of sodium but the resulting sodium-rich plants are much more succulent than a high potassium plant. In some plants over 90% of the required potassium can be replaced with sodium without any reduction in growth.

Potassium deficiency, also known as potash deficiency, is a plant disorder that is most common on light, sandy soils, because potassium ions (K+) are highly soluble and will easily leach from soils without colloids.[1] Potassium deficiency is also common in chalky or peaty soils with a low clay content. It is also found on heavy clays with a poor structure.

Potassium plays a big role as well. Having good amounts of potassium in your plants helps in having sturdy and thick stems, disease-resistance, water respiration, as well aids in photosynthesis. Potassium is also found in the whole plant. It is necessary for all activities having to do with water transportation. Potassium is necessary for all stages of growth, especially important in the development of Buds.

Having to little of Potassium in your plants causes the plants leaves to show retarded growth and show a scorched tip and edges around the leaves. Plants may stretch and your branches can be easily broken or weak. Don’t get this deficiency confused with iron, because it almost acts like iron but to tell the difference in the two is: for potassium the tips of the leaves curl and the edges burn and die. Older leaves may show a red color and leaves could curl upwards. Dead patches (Necrosis) can happen on the margins of larger fan leaves thus, the leaves will eventually die off and turn brown. The Older leaves will show different patches of color (mottle) and turn yellow between the veins, following by whole leaves that turn dark yellow and die. The plants overall growth slows down, mostly when they are in vegetative stage. To little amount of potassium also slows the growth of buds during flowering stages. Dark edges will appear around the edges of the leaf when the deficiency is starting to happen. When your Relative humidity is low, you can almost bet your going to soon get a potassium deficiency from your plants perspiration.
Potassium can get poorly absorbed when having too much Calcium or ammonium nitrogen, and maybe cold weather. Having to much sodium (Na) causes potassium to be displaced. SO keep those in mind… Parts affected by a Potassium Deficiency are: older leaves and leaf margins.


When you have too much Potassium in your soil, it can lead to big troubles, like salt damage and acid fixation of the root system, as well as too much potassium can cause a calcium deficiency. Your fan leaves will show like a light to a dark yellow to whitish color in between the veins. Due to a molecular imbalance, potassium toxicity can cause a reduced uptake and lead to the deficiencies of Mg, and in some cases, Ca. Also leads to the other nutrients to not be absorbed properly leading to lots of other deficiency such as: magnesium, manganese, zinc and iron and can cause problems with calcium as well.



Problems with Potassium being locked out by PH troubles
Soils with excessive Leeching and High ph soils and or water.Soils that are potassium fixated. An excess of kitchen salts (sodium) in the root system/enviroment.


Soil

Potassium gets locked out of soil growing at ph levels of 4.0-5.5
Potassium is absorbed best in soil at a ph level of 6.0-9.5. (Wouldn’t recommend having a ph of over 7.0 in soil) anything out of the ranges listed will contribute to a Potassium deficiency.


Hydro and Soil less Mediums

Potassium gets locked out of Hydro and Soil less Mediums at ph levels of 4.0-4.5, 6.0-6.5.
Potassium is absorbed best in Hydro and Soil less Mediums at ph levels of 4.7-5.3, 6.7-8.5. (Wouldn’t recommend having a ph over 6.5 in hydro and soil less mediums.) Best range for hydro and soil less mediums is 5.0 to 6.0. Anything out of the ranges listed will contribute to a potassium deficiency.

I wouldn't get overly concerned, i.e. don't do anything drastic: cannabis is a hardy plant that will adapt, worst thing you can do is constantly introducing drastic changes; I would only take the corrective measures once I were sure of what's going on, and with a sure plan to fix it in a "smooth", progressive way.

 

[justanotherbozo]

...i have one of those cabs that i built as a cloning/seedstart cab, ...in my case i built an addition on the back to make the cab deeper.

...i used PLL lights and i placed them below the open shelf i built for the cloners so they would passively warm said cloners.

...here's a shot of the addition and the 2 ordinary pc exhaust fans as well as the remote ballast placement.

...i have the build on Jorge's forum so the link won't post, so i spelled out 'dot' and i threw in a few dashs, in case you're interested.

https://www.-------marijuanagrowingdotcom/showthread.php?7388-stealth-ish-cloning-seed-start-cab-oldguy-style

peace, bozo

btw, my cab has been going strong now for almost 6 years if i remember right.

 

[jonhova]

Thats nice!!

 

[jonhova]

Day 35 flower

Day 35 flower

 

[jonhova]

 

[#1cheesebuds]

looks healthy. so how many healthy plants do u have?

 

[jonhova]

2 in flower and 2 freshly rooted clones.

 

[jonhova]

Seems like getting the ph on lock has been good.

No reservoir. Started watering 1 gallon instead of .5 gallon at 5-6 grams per gallon and silica to ph up.

I realized my photos can look a lot better so ill try making them a little prettier, bare with me.

 

[jonhova]

Heres a few more bud shots and some knuckles from bending.

 

[jonhova]

 

[jonhova]

 

[jonhova]

Haircut

Haircut

 

[jonhova]

 

[jonhova]

 

[repuk]

Wow... kudos for the grow!

I'm afraid you have dangerous material in your hands!

Is that a Zamaldelica? see you had to fling into suppercropping to get the canopy somehow to even, but these seems to be really femenine in the way of doing just the contrary : really difficult to predict which branches will get the stretching focus...

What's the flowering week? What's the average RH in your cab?

 

[jonhova]

Rh is around 50-55. Dubi said he thinks its a vietnam black sativa dom pheno of orient express. i bought a pack of tropical mix pack. The clones are flowering already but not stretching as much as i hoped.

 

[blynx]

Getting crowded in there. Great job with the training!