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Germination:
Unfortunately only 2 of 5 Seeds germinated 🙈🙈 so I ordered 3 more. I think i am out of luck with the germination ratio of my Barneys Farm seeds. I didnt feel i had these problem in the past. So the germination date and does not fit with all plants, but it does not matter i guess.
If there is somebody who want to advice me that the pot arent standing safe, its to late, i already thrown one down where many roots have broken off. So this plant need some time to recover.
So now i have two disabled plants. All the new seeds germinated and were placed in small pots with 100% Coco.
The Grow Plan:
This grow i want to try my luck with Autopots and Coco as substrate.
Autopot recommends to use a 50/50 Coco/Clay Pebbles Mix.
I think i will use a bit more Coco bc i'm afraid that the pots won't absorb the water properly, if there's too much clay in them.
I will put the Autopot system into operation 1-2 Weeks after i potted the plants in the final pots.
Facts
Number of Plants: 4
Pot Size: 15L
Veg Light: 150W
Flo Light: 300W
Grow space: 80x80cm= 0,64m²
Watt/m²: 468,75W/m²
I think this grow could be a bit of a challenge again, wish me luck.
So the first week started and i just have to go for work for 4 days.
At this point I thought it was enough to water them until they were really wet and that would be enough until I came back. They survived, but they didn't grow well. Unfortunately, I only realized my mistake on the 13th day and so didn't water them for a whole week.
Well, mistakes are there to learn.
Week 2:
I am really shoked how different Coco is compared to Soil.
I asked some other growers for help because i was not sure about the watering shedule.
It seems to be necessary to water them at least every second day, i have been doing this now since day 13.
And i really would say that they react instantly. I also give them a small amount of nutrients when ever i water them.
The critical plus seedling was a bonus seed and once again I couldn't stop myself from germinating some seeds. But since it looks like only one of the 3 new amnesia lemon seeds will come, the critical plus will probably get the fourth pot and maybe its own grow report too.
Week 3:
Now my plants are developing just as I had imagined it.
I currently water them at least every other day with slightly amount of nutrients and i think they love it.
My two big ones have some purple stems, maybe this is a sign of smth but how long they grow so well i will not worry about.
Dont have so much more to say. I think the first plant will be topped in the next days but thats it so far.
a little algae - As it gets shielded from light it will die. It is of no risk.
It is a reason to reassess watering habits as well as size of pot to plant used. Algae can happen early on with best efforts because seedlngs don't drink fast enough, initially, but if you don't allow the top layer to dry between irrigations, you could be exacerbating it, for example. A tiny plant in a large pot is more likely to get algea, too.
even though it is of no concern, i just knock it off at transplant.
So this week smth really strange is happening with that one plant who let her leaves hang down.
I really tried to figure out what the problem could be but till now i have no idea.
I will explain what i did and what happend then.
So all the time i watered the bigger plants with around EC 1.2 and ph 6.2. At someday it started, or it was already before i dont know exactly, that that one plant let her leaves hang down. Because i learned that it is actually pretty hard to drown plants in coco i dont think it is overwatering at this point. The other plant got the same amount and frequency of water and she is healthy. So i thought it must have something to do
with a nutrient lockout in the root zone and i flushed her with tap water till the EC of the drain was 0.6. Then i added a really light feeding to her i think it was EC 1.1. The next morning she had her leaves up and looked really well. I thought i fixed the problem and i wanted to water her again with that light feeding 14h later. I looked in the tent and her leaves were hanging again. I thought maybe it is bc its evening short to lights out and maybe thats the reason. Ok i watered her a bit and got some drain aswell. So their shouldnt be any salt build up. The next evening i look in the tent and again she let her leaves hang down as hard as she can. I really dont know what the problem can be. I also tried to water less like every other day but that also did not help. Maybe it is a calmag deficiency but there are not really signs for a hard deficiency and the funniest thing is the other plant is perfectly healthy all the time.
At least i can say that the plant is growing further but it does not leave me calm what the problem could be.
So one of my big plants lets its leaves hang and i really have no clue where the problem could be. I have anotjer plant of the same strain and she doesnt have any problem. I have no high ec or build ups. Please ready my weekly report of week 4 there are further informations.
Introduction:
Unveiling the Secrets of Negative Pressure in Cannabis
Negative pressure, also known as tension, is a crucial phenomenon in the world of cannabis plants. It plays a pivotal role in the efficient uptake and transportation of water from the roots to the various parts of the plant. Let's delve into the captivating world of cannabis physiology and discover the power of negative pressure.
Understanding the Mechanism of Negative Pressure in Cannabis
Negative pressure in cannabis plants, similar to other plants, is created through the cohesive and adhesive properties of water within the plant's vascular system. This mechanism relies on the ability of water molecules to form hydrogen bonds and adhere to the walls of the xylem vessels. Understanding the mechanism behind negative pressure is essential to grasp its significance in cannabis physiology.
1. Cohesion-Tension Theory: Driving Water Uptake
The cohesion-tension theory explains how negative pressure enables water movement from the roots to the leaves of a cannabis plant. As water evaporates from the leaf surfaces through stomata, a tension is created, generating a suction force that pulls water upwards through the xylem vessels. This process relies on the cohesive forces between water molecules, forming a continuous column for efficient water transport.
2. Xylem Vessels: The Plumbing System of Cannabis
In cannabis plants, xylem vessels serve as the conduits for water transport. These specialized cells form interconnected channels that allow water to move upwards from the roots to the leaves. The negative pressure generated through the cohesion-tension mechanism helps drive the water flow within the xylem vessels.
The Significance of Negative Pressure in Water Uptake for Cannabis
Negative pressure plays a vital role in the water uptake and overall health of cannabis plants. It ensures a steady supply of water for essential physiological processes, including photosynthesis, nutrient uptake, and structural support. Let's explore the significance of negative pressure in water uptake within cannabis.
1. Ensuring Proper Hydration and Turgor Pressure
Negative pressure facilitates the movement of water from the soil, through the roots, and up to the leaves of cannabis plants. It helps maintain proper hydration and turgor pressure, ensuring the cells remain firm and upright. This is crucial for healthy growth and structural support.
2. Facilitating Nutrient Absorption
Negative pressure not only transports water but also aids in the uptake and transport of dissolved nutrients within the cannabis plant. As water is pulled up through the xylem vessels, essential nutrients and minerals are transported along with it, supplying the various tissues and organs where they are needed for optimal growth and development.
Environmental Factors and Negative Pressure in Cannabis
Several environmental factors can impact the generation and functioning of negative pressure in cannabis plants. Understanding these factors is crucial for cultivating cannabis in different growing conditions.
1. Humidity Levels and Transpiration Rates
Humidity levels influence the rate of water evaporation from the leaves of cannabis plants, which directly affects the tension and suction created within the plant. Higher humidity levels can reduce the rate of evaporation, potentially impacting the negative pressure and water transport efficiency within the plant.
2. Temperature and Water Availability
Temperature plays a role in the rate of transpiration, affecting the water loss through the leaves. High temperatures and limited water availability can increase transpiration rates, potentially leading to higher tension and suction within the cannabis plant.
The Power of Negative Pressure in Cannabis Physiology
Negative pressure, or tension, plays a crucial role in water uptake and distribution within cannabis plants. By understanding the mechanism behind negative pressure and its significance in water transport, cannabis cultivators can ensure proper hydration and nutrient absorption for healthy and robust plant growth. Paying attention to environmental factors that impact negative pressure can further optimize the cultivation conditions for thriving cannabis plants.
Some plants just have droopy leaves, no matter what.
As long as she keeps growing, there is nothing to be worried about.
It is not a cal/mag issue.
Water to run off every time you irrigate in coco.........aim for at least 10% run off each time.
So this week i repotted all plants. They sit in their final 15L Autopots now. Every Pot is equipped with Airbase and Airdome to increase amount of oxygen in the rootzone. We will see how big the effects really are.
I started to train the plants this week, to get an even canopy all over the ares before switching in to flower.
The plants are doing pretty great, dont have any issues until now.
Week 6
D36:
The plants love their new pots.
The plants in the front left is getting a bit pale so i will give her a bit more nuts the next time.
I try to train them not so often to not stress them so much but its pretty hard bc they grow so fast now.
D39:
Now i connected the airpump for the airdomes which are on the bottom of the pots, i let it run everytime when the light is on.
D40:
Yesterday was the last time i watered them manually. Today i but them in the trays for the automatic wateringsystem. No i let them dry out a bit and then turn the Autopotsystem on.
Due to that i dont have any runoff after that, i first start with a really light dose feeding and then will slowly increase it when the plants show me some signs.
Fr. D44/31:
Today i installed the Scrog Net.
I have not really an idea how long I should wait before flowering. I mean I still have a lot of space upwards and the area is not yet fully grown, but they will continue to grow for at least another two weeks. It was somehow easier with the last grow.
I would be happy to receive advice.
CruellaDeVil
