Tap Root --- Up or Down??? - Cannabis-World

blue_ankle · 08-01-2006, 12:55 AM

After the seed pops, do you plant it with the tap root facing down or up?

Razz · 08-01-2006, 01:39 AM

down, for sure. why confuse the plant? the root wants to run away from light. help it along.

08-01-2006, 01:51 AM

Umm, no.
If the root is very short it should be placed pointing directy UP.
If long you'll have to make the call depending on length.

Damn noobs

c-ray · 08-01-2006, 04:14 AM

hey DC why would you point the root upwards?

plantbuilder · 08-01-2006, 04:20 AM

because that is the way the seed would be positioned in the soil if left to its own designs. if placed downwards you generally have to pull of the seed casing as it gets pushed up by the plantlet inside... the taproot is designed to bend downwards, the plantlet is not quite as adept.
peace
pb

c-ray · 08-01-2006, 04:47 AM

cool, well I guess I must be a newb

08-01-2006, 06:52 AM

Jesus, what are some of you smoking?

Let me see, you want the roots below soil and the plant above soil...why the hell would you point the root up?

Here's the method taught to me lo these many years ago...when the seed pops and you've got a nice root coming out (1/8th to 1/4 inch) make a hole in your soil with your index finger to the first knuckle. Place the seedling in hole ROOT DOWN and cover with soil. Water with a spray bottle or misting wand until plant is about 1 inch tall to protect fragile root system. Wether the hull comes off the seed is not a function of being planted upside down or rightside up

, instead it is influenced by age of the seeds and amount of light.

Ed

nugs · 08-01-2006, 06:59 AM

heres some info and a pic on it.

# The primary root emerges through the seed coats while the seed is still buried in the soil.
# The hypocotyl emerges from the seed coats and pushes its way up through the soil. It is bent in a hairpin shape — the hypocotyl arch — as it grows up. The two cotyledons protect the epicotyl structures — the plumule — from mechanical damage.
# Once the hypocotyl arch emerges from the soil, it straightens out. This response is triggered by light. Both

* red light, absorbed by phytochrome and
* blue light, absorbed by cryptochrome can do the job.

# The cotyledons spread apart exposing the
# epicotyl, consisting of

* two primary leaves and the
* apical meristem

# In many dicots, the cotyledons not only supply their food stores to the developing plant but also turn green and make more food by photosynthesis until they drop off.

personally i put it down but i dont think it matters much, good seeds will germ....period.

08-01-2006, 07:07 AM

I'm happy, this thread went from a stupid newb question to a very good informational thread.

dpn · 08-01-2006, 10:59 AM

its not complete bullshit in some cases the tap root likes to go up and curve around the seed and then down into the soil. I always plant the seed on its side as ive had the seed pushed out of the soil after planting with the tap root down, this happens rarely but have lost a few nice seedling because of it.

mace · 08-01-2006, 12:20 PM

It really doesn't matter, don't underestimate the plant, it doesn't need you to grow.

best thread i've found on this subject on a pot site: http://www.icmag.com/ic/showthread.php?t=24420

peace,

mace

08-01-2006, 07:19 PM

I've always tried putting them down, when placing them in Jiffy's, or Rapid Rooters

08-02-2006, 01:35 PM

When a root grows the tip of the root is cone shaped. At this cone shaped tip there is a root apical meristem. These meristimatic cells divide rapidly increasing the number of cells in the main portion of the root. Protecting the root apical meristem is a root cap. In the center of the root cap there are starch-rich plastids called amyloplasts.These plastids are heavy enough to fall from one position to another and many experts believe these plastids operate as gravity sensors which signal the downward growth of the root. This is one of the mechanisms scientists believe which is responsible for gravitropism.
So regardless whether you plant the root tip up or down it should grow downward by itself.
Hope this helped.

08-02-2006, 07:02 PM

I always plant either sideways, or root up. As OS mentioned, it helps the sprout shed the seed casing. Whenever I've planted root down, they sprout with a pesky, stupid looking husk-helmet stuck to the top of their heads.

spaceman · 08-02-2006, 08:05 PM

Gravity, sweet , sweet gravity.....

08-02-2006, 08:07 PM

I used to do root down but as alreadymentioned sometimes I found the seed pushed itself all the way out of the soil. and yeah I got those husk helmets too, but those are easy to pop off.
Now I try to lie them in sideways, I figure gravity will tell the root which way to go.
-melo

spaceman · 08-02-2006, 08:36 PM

gravity dont take breaks!!! the plant has evolved over millions of years and gravity is certain to let her know which way is up in the start... just my opinion peace

JackStraw · 08-02-2006, 08:57 PM

I've always planted pretty much sideways. Sometimes I like to leave the seeds in the paper towel so long that the seedlings pop out the seed, then i just place them in the soil root down and plant up

I do think gravity tells the plant which way to grow....it always grows up no matter how you plant it.

spaceman · 08-02-2006, 09:03 PM

interesting read..
http://www.plantphysiol.org/cgi/reprint/40/5/961

spaceman · 08-02-2006, 09:15 PM

edit got schooled by PB

08-02-2006, 09:15 PM

interesting for you vapor, but I didn't understand one thing they were talking about. Care to summarize?
-melo

spaceman · 08-02-2006, 09:17 PM

you could scroll to the bottom of the pdf and read there summary...

08-02-2006, 09:19 PM

GEOTROPISM
HELIOTROPISM
2 good reasons plants behave the way they do in regards to the earth and the sun.

plantbuilder · 08-02-2006, 09:30 PM

^ lol wtf does that mean lol

Quote:

Related experiments with thylakoids
isolated from space-grown plants showed that the light-saturated
photosynthetic electron transport rate from H,O through photosystems
I1 and I was reduced by 28%. These results demonstrate
that photosynthetic functions are affected by the microgravity environment.

http://www.pubmedcentral.gov/picrend...9&blobtype=pdf
peace
pb

spaceman · 08-02-2006, 09:44 PM

very enlightening thanks!!
systems check....
team work is the key!

08-02-2006, 10:34 PM

^ lol wtf does that mean lol
Guess you don't know what a dictionary is, eh PB???????

It certainly is a lot simpler explanation about why plants grow down into the earth and rotate towards light. Basic stuff they teach kids in US schools actually.

08-01-2006, 12:55 AM	#1
blue_ankle Junior Member Join Date: Jul 2006 Posts: 7	Tap Root --- Up or Down??? After the seed pops, do you plant it with the tap root facing down or up?

08-01-2006, 04:14 AM	#4
c-ray Amatéur Join Date: Mar 2006 Location: Zion Posts: 9,773 Favorites: crystal skulls, starburst, saskwatch, i-spice, timewarp, montreal chemo, Knep, NLP, nepwarp, Sweet C	hey DC why would you point the root upwards?
	"In the uptake of nutrients from the soil food web, sulphur is the catalyst for carbon chemistry, boron gives us sap pressure and silicon builds the capillary action that transports plant sap. Only then can calcium, magnesium and amino acids be delivered to cell division sites for chlorophyll manufacture. As chlorophyll catches light, phosphorous transfers energy into sugar production—after which a mix of sugars and more complex products follow potassium through the silica pathways to provide energy or its storage wherever required in the plant." Hugh Lovel

08-01-2006, 04:20 AM	#5
plantbuilder Posts: 0 Join Date: Mar 2006 Posts: 1,442	because that is the way the seed would be positioned in the soil if left to its own designs. if placed downwards you generally have to pull of the seed casing as it gets pushed up by the plantlet inside... the taproot is designed to bend downwards, the plantlet is not quite as adept. peace pb
	hyp·o·crite /ˈhipəˌkrit/ A person who indulges in hypocrisy.

08-01-2006, 04:47 AM	#6
c-ray Amatéur Join Date: Mar 2006 Location: Zion Posts: 9,773 Favorites: crystal skulls, starburst, saskwatch, i-spice, timewarp, montreal chemo, Knep, NLP, nepwarp, Sweet C	cool, well I guess I must be a newb
	"In the uptake of nutrients from the soil food web, sulphur is the catalyst for carbon chemistry, boron gives us sap pressure and silicon builds the capillary action that transports plant sap. Only then can calcium, magnesium and amino acids be delivered to cell division sites for chlorophyll manufacture. As chlorophyll catches light, phosphorous transfers energy into sugar production—after which a mix of sugars and more complex products follow potassium through the silica pathways to provide energy or its storage wherever required in the plant." Hugh Lovel

08-01-2006, 06:59 AM	#8
nugs the old school kushhead Join Date: Jul 2006 Location: sunny southern california Posts: 57 Favorites: kushes, thai's, afghani's	heres some info and a pic on it. # The primary root emerges through the seed coats while the seed is still buried in the soil. # The hypocotyl emerges from the seed coats and pushes its way up through the soil. It is bent in a hairpin shape — the hypocotyl arch — as it grows up. The two cotyledons protect the epicotyl structures — the plumule — from mechanical damage. # Once the hypocotyl arch emerges from the soil, it straightens out. This response is triggered by light. Both * red light, absorbed by phytochrome and * blue light, absorbed by cryptochrome can do the job. # The cotyledons spread apart exposing the # epicotyl, consisting of * two primary leaves and the * apical meristem # In many dicots, the cotyledons not only supply their food stores to the developing plant but also turn green and make more food by photosynthesis until they drop off. personally i put it down but i dont think it matters much, good seeds will germ....period.
	strictly hazed for days

08-01-2006, 01:39 AM	#2
Razz farmer Join Date: Jul 2006 Location: 4800n 3200w Posts: 44	down, for sure. why confuse the plant? the root wants to run away from light. help it along.

08-01-2006, 06:52 AM	#7
Ed Larkis Guest Posts: n/a	Jesus, what are some of you smoking? Let me see, you want the roots below soil and the plant above soil...why the hell would you point the root up? Here's the method taught to me lo these many years ago...when the seed pops and you've got a nice root coming out (1/8th to 1/4 inch) make a hole in your soil with your index finger to the first knuckle. Place the seedling in hole ROOT DOWN and cover with soil. Water with a spray bottle or misting wand until plant is about 1 inch tall to protect fragile root system. Wether the hull comes off the seed is not a function of being planted upside down or rightside up , instead it is influenced by age of the seeds and amount of light. Ed

08-01-2006, 07:07 AM	#9
Agent-Smith Guest Posts: n/a	I'm happy, this thread went from a stupid newb question to a very good informational thread.

08-01-2006, 10:59 AM	#10
dpn Senior Member Join Date: May 2006 Location: uk Posts: 721	its not complete bullshit in some cases the tap root likes to go up and curve around the seed and then down into the soil. I always plant the seed on its side as ive had the seed pushed out of the soil after planting with the tap root down, this happens rarely but have lost a few nice seedling because of it.

08-01-2006, 12:20 PM	#11
mace Senior Member Join Date: Mar 2006 Posts: 296	It really doesn't matter, don't underestimate the plant, it doesn't need you to grow. best thread i've found on this subject on a pot site: http://www.icmag.com/ic/showthread.php?t=24420 peace, mace

08-01-2006, 07:19 PM	#12
CannyBus Guest Posts: n/a	I've always tried putting them down, when placing them in Jiffy's, or Rapid Rooters

08-02-2006, 01:35 PM	#13
coffinman Guest Posts: n/a	When a root grows the tip of the root is cone shaped. At this cone shaped tip there is a root apical meristem. These meristimatic cells divide rapidly increasing the number of cells in the main portion of the root. Protecting the root apical meristem is a root cap. In the center of the root cap there are starch-rich plastids called amyloplasts.These plastids are heavy enough to fall from one position to another and many experts believe these plastids operate as gravity sensors which signal the downward growth of the root. This is one of the mechanisms scientists believe which is responsible for gravitropism. So regardless whether you plant the root tip up or down it should grow downward by itself. Hope this helped.

08-02-2006, 07:02 PM	#14
Papi Guest Posts: n/a	I always plant either sideways, or root up. As OS mentioned, it helps the sprout shed the seed casing. Whenever I've planted root down, they sprout with a pesky, stupid looking husk-helmet stuck to the top of their heads.

08-02-2006, 08:05 PM	#15
spaceman Civilized worm Join Date: Mar 2006 Posts: 7,139	Gravity, sweet , sweet gravity.....
	The places in between

08-02-2006, 08:07 PM	#16
meloyelo Guest Posts: n/a	I used to do root down but as alreadymentioned sometimes I found the seed pushed itself all the way out of the soil. and yeah I got those husk helmets too, but those are easy to pop off. Now I try to lie them in sideways, I figure gravity will tell the root which way to go. -melo

08-02-2006, 08:36 PM	#17
spaceman Civilized worm Join Date: Mar 2006 Posts: 7,139	gravity dont take breaks!!! the plant has evolved over millions of years and gravity is certain to let her know which way is up in the start... just my opinion peace
	The places in between

08-02-2006, 08:57 PM	#18
JackStraw Pastafarian Join Date: Apr 2006 Posts: 64 Favorites: jackie-o, OG Kush	I've always planted pretty much sideways. Sometimes I like to leave the seeds in the paper towel so long that the seedlings pop out the seed, then i just place them in the soil root down and plant up I do think gravity tells the plant which way to grow....it always grows up no matter how you plant it.

08-02-2006, 09:03 PM	#19
spaceman Civilized worm Join Date: Mar 2006 Posts: 7,139	interesting read.. http://www.plantphysiol.org/cgi/reprint/40/5/961
	The places in between

08-02-2006, 09:15 PM	#20
spaceman Civilized worm Join Date: Mar 2006 Posts: 7,139	edit got schooled by PB Last edited by spaceman; 08-02-2006 at 09:54 PM.
	The places in between

08-02-2006, 09:17 PM	#22
spaceman Civilized worm Join Date: Mar 2006 Posts: 7,139	you could scroll to the bottom of the pdf and read there summary...
	The places in between

08-02-2006, 09:19 PM	#23
CO-Grower Guest Posts: n/a	GEOTROPISM HELIOTROPISM 2 good reasons plants behave the way they do in regards to the earth and the sun.

08-02-2006, 09:30 PM	#24
plantbuilder Posts: 0 Join Date: Mar 2006 Posts: 1,442	^ lol wtf does that mean lol Quote: Related experiments with thylakoids isolated from space-grown plants showed that the light-saturated photosynthetic electron transport rate from H,O through photosystems I1 and I was reduced by 28%. These results demonstrate that photosynthetic functions are affected by the microgravity environment. http://www.pubmedcentral.gov/picrend...9&blobtype=pdf peace pb
	hyp·o·crite /ˈhipəˌkrit/ A person who indulges in hypocrisy.

08-02-2006, 09:44 PM	#25
spaceman Civilized worm Join Date: Mar 2006 Posts: 7,139	very enlightening thanks!! systems check.... team work is the key!
	The places in between

08-02-2006, 10:34 PM	#26
CO-Grower Guest Posts: n/a	^ lol wtf does that mean lol Guess you don't know what a dictionary is, eh PB??????? It certainly is a lot simpler explanation about why plants grow down into the earth and rotate towards light. Basic stuff they teach kids in US schools actually.

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