Effect of Defoliation on Yield - Skywalker OG indoor scrog

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Uncle Ben

Well-Known Member
I thought I answered them
Let's try this one more time.

How are you going to decide exactly what material to weigh come harvest? Do you decide or a team of seasoned laboratory professionals and their assistants? What if disease or insect pressure, or some other cultural issues affects some but not others which will affect the outcome and skew the results?

Plant tissue moisture levels? You do have an accurate method/instruments to measure moisture levels in the tissue, or you gonna hang "those bitches", let them dry, clean 'em up and say, "it's time to weigh!" ?

At what point in the plant's development will you say part or all of A or B is ready?
 

Izoc666

Well-Known Member
Oscar, they're right about your scientific method, which you don't have one. This is more experiment, hopefully it will open your eyes , when you will understand more clear when you know how to make this plant TICK.

I highly recommend you to read this information for plant's needs

http://en.wikipedia.org/wiki/Plant_nutrition

You don't need a lot of junk nutes if you read the link...I only use dyna gro's foliage pro and pro tekt from start to harvest,

Finally, with respect, I don't think this thread have any merit to become sticky.

If you really have a respect for this MMJ community then do the right way and give newbies a simple tool.

Peace
 

OscarLaGrouch

Well-Known Member
How are you going to decide exactly what material to weigh come harvest?

I am going to dry all buds, trim them thoroughly, cure them to 55% RH per Caliber IV hygrometer and weigh each table separately and report the totals. I am not going to weigh vegetative material.

Do you decide or a team of seasoned laboratory professionals and their assistants?
I do. I am my own assistant. its not really rocket science; I think I can handle it.

What if disease or insect pressure, or some other cultural issues affects some but not others which will affect the outcome and skew the results?

obviously this will be reported and the experiment will need to be repeated.

Plant tissue moisture levels? You do have an accurate method/instruments to measure moisture levels in the tissue, or you gonna hang "those bitches", let them dry, clean 'em up and say, "it's time to weigh!" ?

cure them to UNIFORM 55% RH per Caliber IV hygrometer then weigh per original post. guess you're too lazy to read it.


At what point in the plant's development will you say part or all of A or B is ready?

when both tables are ready I will chop both at the same time within minutes of each other. If one is ready before the other, I will report this as it is a significant finding. both tables will be lab tested separately for potency.
 
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OscarLaGrouch

Well-Known Member
Oscar, they're right about your scientific method, which you don't have one. This is more experiment, hopefully it will open your eyes , when you will understand more clear when you know how to make this plant TICK.

I highly recommend you to read this information for plant's needs

http://en.wikipedia.org/wiki/Plant_nutrition

You don't need a lot of junk nutes if you read the link...I only use dyna gro's foliage pro and pro tekt from start to harvest,

Finally, with respect, I don't think this thread have any merit to become sticky.

If you really have a respect for this MMJ community then do the right way and give newbies a simple tool.

Peace
I have always referred to this as an experiment.
do the right way and give newbies a simple tool? what does that mean?
 

OscarLaGrouch

Well-Known Member
Oscar, they're right about your scientific method, which you don't have one. This is more experiment, hopefully it will open your eyes , when you will understand more clear when you know how to make this plant TICK.

I highly recommend you to read this information for plant's needs

http://en.wikipedia.org/wiki/Plant_nutrition
Well I guess that BS in Botany from a highly-ranked University didnt teach me anything about plant nutritional needs. Bummer
I guess all that top shelf bud I produced was a fluke.
 

OscarLaGrouch

Well-Known Member
Yes, it did, Oscar, Get used to hearing this, I will have fries with that!!!
did you guys conduct a study to determine what I know and don't know? was it done in a controlled environment?
My professors did it for you. Had a B average in a premed program and scored 80th percentile on the GRE Biochemistry, Cell and Molecular Biology Test.
 

OscarLaGrouch

Well-Known Member
that's not top shelf.....
did you smoke it through the internet? tested at 21% THC and its a single nug at 5g. I had a good amount of those. sold out super fast at the shop. largest nugs in the building so it was an easy choice.

all this HaterAde drinking is boring. I'm gonna go back to work.
 

OscarLaGrouch

Well-Known Member
its a sativa so clear and cloudy is good enough
the trichs are big enough to see with the naked eye
sugar leaves look like whiskers on grandpas beard
 

mmjmon

Well-Known Member
That is certainly not what I said about Jorge and RC Clarke, I didn't suggest in the slightest that they don't know anything.

You posted a quote and video from Jorge where he says that there is science behind what he is saying about not pulling off leaves, I'm just asking to see this science?

You and others have posted in here that you will only believe peer reviewed scientific papers, so can we see these scientific papers regarding cannabis defoliation that have convinced you that it doesn't work?

With regards to RC Clarke here is the article in question:

If these inhibitor-laden leaves are removed, the plant will proceed to flower, and maturation will be accelerated. Large leaves shade the inner portions of the plant, and small atrophied floral clusters may begin to develop if they receive more light.

In actuality, few if any of the theories behind defoilatin or de-leafing give any indication of validity. Indeed, leafing possibly serves to defeat its original purpose. Large leaves have a definite function in the growth and development of Cannabis. Large leaves serve as photosynthetic factories for the production of sugars and other necessary growth sub-stances. They also create shade, but at the same time they are collecting valuable solar energy and producing foods that will be used during the floral development of the plant.

Premature removal of leaves may cause stunting, because the potential for photosynthesis is reduced. As these leaves age and lose their ability to carry on photo-synthesis they turn chloro tie (yellow) and fall to the ground. In humid areas care is taken to remove the yellow or brown leaves, because they might invite attack by fungus.

During chlorosis the plant breaks down substances, such as chlorophylls, and translocates the molecular components to a new growing part of the plant, such as the flowers. Most Cannabis plants begin to lose their larger leaves when they enter the flowering stage, and this trend continues until senescence. It is more efficient for the plant to reuse the energy and various molecular components of existing chlorophyll than to synthesize new chlorophyll at the time of flowering. During flowering this energy is needed to form floral clusters and ripen seeds.

Removing large amounts of leaves will interfere with the metabolic balance of the plant. If this metabolic change occurs too late in the season it could interfere with floral development and delay maturation. If any floral inhibitors are removed, the intended effect of accelerating flowering will be counteracted by metabolic upset in the plant.

Removal of shade leaves does facilitate more light reaching the center of the plant, but if there is not enough food energy produced in the leaves, the small internal floral clusters will not grow any larger. Leaf removal
may also cause sex reversal resulting from a metabolic change.

Marijuana Botany.Clarke


Can you see what I mean, he doesn't seem 100% sure when it comes to specifics about defoliation. I do understand that this article was written in 1981 so there might have been experiments done since then to prove/disprove the claims that he is making.

I also noticed that his first paragraph there is this line "Large leaves shade the inner portions of the plant, and small atrophied floral clusters may begin to develop if they receive more light.", but you're saying this does not happen as buds don't need light to grow?

I'm genuinely interested in seeing the evidence that has convinced you that defoliation doesn't work, as I find it quite an interesting subject.

How I read it was the flower clusters would be small and atrophied if there are no large leaves to shade them.

I also picked up on the statement "Removal of shade leaves does facilitate more light reaching the center of the plant, but if there is not enough food energy produced in the leaves, the small internal floral clusters will not grow any larger." which I interpreted to mean, if you defoliate those large leaves, your plant has to work hard to produce the food energy rather than use what it has stored. Sounding like the plant isn't wasting energy to maintain the leaves, it wastes the energy to produce the food meaning the buds would suffer under defoliation.


Hmmm. Never thought of it that way. Makes sense though huh?
Oh well, back to the grow. I can't wait to see the results.
 
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