base nutrients grow

skunkushybrid01 said:

your report is from 2001.

homebrewer... it is impossible to over fertilise a plant. the burnign you see is necrosis caused by a K deficiency. this is common knowledge now. what they taught ten years ago they do not teach today... because it is wrong for the most part.

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ScienceDaily (May 29, 2009) — While proving a long-held theory that suberin blocks water and nutrient absorption in plants, a Purdue University scientist learned more about manipulating the substance to better feed plants.

It has long been believed that suberin, a waxy substance between some plant cells, acts as a barrier for the movement of water in a plant's roots. David E. Salt, a professor of plant molecular physiology, discovered a mutant form of the plant Arabidopsis- enhanced suberin 1 or ESB1 - with twice as much suberin as wild varieties, giving him a way to test the theory.
Salt also discovered which pathways particular nutrients use to get into a plant's shoots based on suberin concentration. By adjusting the amount of suberin in roots, Salt said plants could be engineered to allow for easier absorption of beneficial nutrients.
"This is the first time that the dogma in the textbooks has been tested genetically. It's been known for a long time that this material exists in the cell, but there's been no genetic proof to show what it does," Salt said. "We now have another tool in our toolbox to manipulate how plants take up water and mineral nutrients."
Using the plant with twice the amount of suberin, Salt showed that the plant activated a defense mechanism to keep from wilting. Since suberin was restricting water absorption, the plant allowed less transpiration, or evaporation of water from the leaves.
To further prove the theory, Salt was able to cut shoots off the wild-type plants and graft them onto mutant roots, and vice versa. The nutrient compositions in the shoots changed, reflecting the effect suberin in the roots had on the plants' absorption ability.
"You put a mutant root onto a wild-type shoot and the elemental composition in the wild-type shoot starts to look like a mutant shoot," Salt said. "We saw the same thing with water loss."
Some nutrients use a symplastic route, moving through cells' cytoplasm to gain access to the plant. Others use an apoplastic route, moving through the outer cell walls. The suberin acts as a filter, blocking some water from passing through cell walls. The more suberin, the more difficult it is for nutrients to pass through the cell walls.
"Just like animals, plants want to select the things they take in," Salt said. "They want a certain amount of potassium or a certain amount of nitrogen. This allows them to choose how much they get."
In Salt's experiments, the plants with more suberin had less calcium, manganese and zinc in their leaves, meaning a significant amount of those nutrients pass apoplastically through the root. Sodium, sulfur, selenium, molybdenum and arsenic showed higher concentrations, meaning they are generally absorbed symplastically.
The plants with more suberin - which decreased transpiration - used the water they were able to absorb more efficiently. Salt said plants could be genetically engineered for specific amounts of suberin so they would more easily absorb beneficial nutrients and use less water in a more efficient manner.
The National Science Foundation funded Salt's research. The next step is to determine the role of the ESB1 gene in suberin biosynthesis.

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homebrewer said:

Where in your links does it specifically say that you cannot over-fertilize a plant? Where does it specifically state that nutrient toxicities do not exist?

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skunkushybrid01 said:

All the way through... you just need toknow what you're reading. There is a direct quote from Salt himself in my last post....

if you still don't get it yet there is nothing more i can do... it's all there for you if you know what you're reading. I cannot teach a chimp to tango in 5 minutes, so i have no patience for this childish bullshit.

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DR Salt even mentions specifically that some hydroponic corn had almost no suberin, and that mangroves living in salt water have extreme concentrations of suberin.

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skunkushybrid01 said:

LOL.

this place has gone right down hill... or maybe just those with intell;igence and that know how to read properly are keeping out of it. I can't put this any clearer, even in salt's own words from 2009 this is not enough for you... here they are again. it says it all perfectly:

"Just like animals, plants want to select the things they take in," Salt said. "They want a certain amount of potassium or a certain amount of nitrogen. This allows them to choose how much they get."

can you read that? Just like animals, just like we choose what we eat and the amounts we choose to do so...


the difference here is that you fucking idiots just want to argue... how can you continue to argue when it makes perfect logical sense? I have grown plants in 4.0 in DWC, LOL... i have grown seedlings in a 3.2EC concentration... you dickheads are so ignorant you don't even deserve to hear the results. fucking morons.

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skunkushybrid01 said:

AK47 stands for Afghan Kush 47, a double entendre in that it hits like a machine gun and can also be taken at 47 days. In fact i remember when serious were first talking about this strain and they wanted to distance themselves away from the kalshnikov, and even themselves said it was named so because it can be taken at just 47 days flower.

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Serious Seeds stole the name... every European knows that AK stands for Afghan Kush and that it flowers in 47 days.

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skunkushybrid01 said:

that's why they call it cinderella... but the 99 comes from the 99th generation. They noticed that with each generation the Cindy would just get stronger and stronger. It wasn't until C88 that the bro's finally felt they were getting the holy grail they were looking for. they hit it at 99

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The plant root is a specialized organ that allows uptake of water
and selective uptake of solutes from the soil environment, to
support normal plant growth and development.

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burrr said:

I too can cut and paste from that article.
Using this mutant, we were able to uncover the
importance of suberin in sealing connections between
root cells to regulate water movement through the plant
and accumulation of various essential and nonessential
minerals in leaves, including sodium, sulfur, potassium,
calcium, manganese, zinc, arsenic, selenium, and molybdenum.


Bullet point of this presentation: nitrogen and phosphorus did not make the list of filtered elements.
These articles just explain the role of suberin, it never says that having some suberin will make them nute proof!

Here, we present
direct genetic evidence establishing that suberin in the roots plays a critical role in controlling both water and mineral ion
uptake and transport to the leaves.

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Using this mutant, we were able to uncover the importance of suberin in sealing connections between root cells to regulate water movement through the plant and accumulation of various essential and nonessential minerals in leaves, including sodium, sulfur, potassium, calcium, manganese, zinc, arsenic, selenium, and molybdenum.

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