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Old 04-27-2018, 08:09 PM #51
jidoka
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C’mon Easy. Those hollow stems suck those nutes up like a straw. And piston rods are hollow for strength. Let’s not talk about pectin, celllulose and hemi cellulose
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Old 04-28-2018, 12:02 AM #52
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Environment will effect uptake for sure. However it comes down to what is in the plant. I was quoting base saturation levels in your soil, however if you take leaf samples, you will find solid stems disappear when the Ca and Boron levels are adequate. So yes, environment will effect uptake, but the ratio of nutrients in the plant is really what you are shooting for. So if it's cold, you will have a hard time with Ca uptake as P will be limited. Ext ext.

As for a solid stem being more functional..... How do nutrients travel inside the plant? Is it all about structure to you, or is the vascular system something you take into account? Go back to plant physiology, think about it.....
Hollow stems are a good thing so I have no wish to find a ratio of nutrients that prevents them anymore than I would want to prevent the plant making THC.
Your theory that fluids wick through solid mass better than they flow through a pipe , or that a solid round bar is stronger than a tube both contradict basic physics.
When all nutrient levels are optimum and the genetics are good, you will see big, fat, hollow stems with huge buds on them.

So other plants that have hollow stems.. from Daffodils, Delphiniums and lupins to spring onions, they are ALL Ca and Boron deficient? always? every single stem? Bamboo? should that be solid? is all the bamboo in the world is Boron deficient?
Japanese knotwood always has hollow stems and is one of the fasted growing things on earth.

Cruciferous veg like broccoli get a different hollow stem from Ca def but that not growth - the core of the stem splits and the hole is diamond shaped not round. I think this is where the confusion comes.
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Old 04-28-2018, 01:16 AM #53
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Life is hard for people that never learn when or who to listen to. This is one of those leave it to the professional scenarios.

Dj short has probably grown and bred countless plants from seed. More than most people will start and grow out in their lives, isolating the fastest/sturdiest growing and most potent offspring for the next progeny.

Im sure if he had a deficiency he would know...

Would it make sense for him to observe and share that the hollow stem plants grew faster, had stronger branches, and produced more potent flowers if the plant was deficient???

If anything it would prove the hollow stem plant could be EVEN FASTER, STRONGER, AND MORE POTENT than already observed when fed "properly".

Which i highly doubt, hollow stems are simpy a genetic trait/mutation/evoloution.

This doesnt mean that EVERY hollow stem plant is a keeper either.

I just tossed a hollow stem blue cheese indica plant that i revegged from last season because it was a shitty tasting and low odor pheno. Organic soil grown and fed plenty of ca and silica throughout its life, even clones would not produce solid pith even if feeding heavier trying to make them.

(Hell getting clones to root without rotting was a miracle, never had an issue before...damn embolisms!)



Grew fast as hell, was sturdy in 70+mph winds unstaked and uncaged at 7ft tall and 6 ft across, tolerated continuos weeks of rain in flower and no mold, freezing temps and snow+wind storms until the end of october.

Knowledge is power, and its "lead a horse to water" scenarios like this that cause "those that know dont say".

Edit:
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Originally Posted by Spaventa View Post
I guess some cannabis evolved in harsh, dry, nutrient imbalanced conditions and the potential for huge pipeline stems became redundant and recessive.

Maybe the strains that do it most are ones that evolved in a better environment and the trait became widespread because the plants that had the potential to take advantage of good conditions and develop supercrop stems did the best and pollinated more fems of which the hollow girls were the biggest and made most seed.

Is there a correlation between the trait and humidity? Hollow stems seem tumescent and tumescence favours high humidity? Possibly solid stems retain moisture better in dry conditions?
Just seen this on the last page, agree 100%.

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Old 04-28-2018, 02:22 AM #54
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Let us see a pic of this miracle plant. Since all those yrs ago when I saw TH show a 10 lb plant I have never seen a plant that big with no support. You aren’t talking to dudes at their first rodeo. Let’s see it
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Old 04-28-2018, 02:31 AM #55
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here is the grow log.

https://www.icmag.com/ic/showthread.php?t=342997
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Old 04-28-2018, 06:06 AM #56
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So I looked. You are just fucking with me right. If you are well done.
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Old 04-28-2018, 04:31 PM #57
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So I looked. You are just fucking with me right. If you are well done.
Very well done, lol.

Clearly showing a Ca deficient plant, with hollow stems. Spider mite damage and tiny yields. Awesome.
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Old 04-28-2018, 04:34 PM #58
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Originally Posted by Spaventa View Post
Hollow stems are a good thing so I have no wish to find a ratio of nutrients that prevents them anymore than I would want to prevent the plant making THC.
Your theory that fluids wick through solid mass better than they flow through a pipe , or that a solid round bar is stronger than a tube both contradict basic physics.
When all nutrient levels are optimum and the genetics are good, you will see big, fat, hollow stems with huge buds on them.

So other plants that have hollow stems.. from Daffodils, Delphiniums and lupins to spring onions, they are ALL Ca and Boron deficient? always? every single stem? Bamboo? should that be solid? is all the bamboo in the world is Boron deficient?
Japanese knotwood always has hollow stems and is one of the fasted growing things on earth.

Cruciferous veg like broccoli get a different hollow stem from Ca def but that not growth - the core of the stem splits and the hole is diamond shaped not round. I think this is where the confusion comes.
What mechanism allows a plant to uptake nutrients? What is the vascular system of the plant? Describe how this action takes place........

Once you have those answers, reread your last post.......

As for plants like bamboo..... Yea, plant philology clearly dictates the hallow stems in Baboo. That however has nothing to do with cannabis.

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Originally Posted by jidoka View Post
. Let’s not talk about pectin, celllulose and hemi cellulose
hint, hint!

Quote:
Originally Posted by Spaventa View Post
Your theory that fluids wick through solid mass better than they flow through a pipe , or that a solid round bar is stronger than a tube both contradict basic physics.
Do you think the nugs are sucking on the stems to create negative pressure and drawing fluids up? Is that really what you think is happening?


https://youtu.be/9-dicqNoODg
This video should help....... Trees, with solid stems, transporting water hundreds of feet in the air......

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Old 04-28-2018, 05:10 PM #59
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Check your physics... theres a reason bicycle frames and birds bones are hollow - pound for pound, a tube is stiffer and stronger than a solid round bar and therefore more efficient. This means a bigger plant, with better nutrient mobility, from the same resources. You will also observe that hollow stems aren't just hollow - they are much larger diameter than solid stems so there is just as much tissue, only in a more efficient shape.
Genetics influenced by environment.

Bicycle frames are engineered for light weight, as birds have "bioengineered" light bones for flight.

Hollow stems snap easier under strain, and do not recover as quickly as solid stems. I have seen the symptom progress to a near brittleness that is of no advantage to the plant.
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Old 04-28-2018, 06:27 PM #60
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What mechanism allows a plant to uptake nutrients? What is the vascular system of the plant? Describe how this action takes place........
Transpiration drives uptake of water containing nutrients.
In a plant with hollow stems, if you cut the stem you will soon see fluid overflowing from the end where you cut. Having this much nutrient solution so readily available throughout the plant is why it results in faster more vigorous growth and why we like em - its still has to go through some tissue mass but most of the journey from media to buds is in the fast lane through a big tunnel.
Sure the solution gets transported through tissues on parts beyond the stem, like the the stems on the buds themselves but the "res" if you will is only a few inches away at most before you get to torrents of gushing juice, a solid stem work, obviously, but its a bottleneck
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