[trichrider]

although it appears that divergent catagories are competeing for space in this thread, i defer my entries to the OP with an apology for diluting or polluting your botany thread with medical links.
i shoulda read the title, got to admit i messed myself.

[pipeline]

Some research is more botany oriented, and some is more medically oriented... Either way, I was just making a place to get everything together so users can have the info accessable, if they have a hunch they're chasing, or a specific question... Thanks for the cannabis and cancer article.... My cousin has a progressed stomach cancer and he's needing all the help he can get from cannabis....I'll forward the info...

The Biotechnology of Cannabis sativa

[pipeline]

Thanks Carl, I had not seen this yet!

[pipeline]

I'm going to add the link to the hemp plant tissue analysis research.... Another important piece to the puzzle!

PDF
https://www.icmag.com/ic/attachment....9&d=1279061516

[funkfingers]

Well I think I've done it..(no thanks to yall) but I think I overloaded my brain with info..But seriously thanks for the reading material, will keep me busy for a while.

Originally Posted by pipeline

I'm going to add the link to the hemp plant tissue analysis research.... Another important piece to the puzzle!

that's cool, I sent a message to the moderator of this forum, asking them to move it over.

[bendoslendo]

Originally Posted by spurr

An interesting paper...

But the authors left out the most important data, the 'hows' because they are douche bags and didn't want the public to have the info! LOL, like there isn't a mountain of 'how to' info for growing cannabis in the public domain already...

It's funny to read about how the scientists, who had never grown cannabis before, screwed up the crop a few times. It kind of invalids much of the data they present because they are shitty growers. But the pics and info is wroth reading.

"The results of an experimental indoor hydroponic Cannabis growing study, using the ‘Screen of Green’ (ScrOG) method—Yield, tetrahydrocannabinol (THC) and DNA analysis"
Glenys Knight, Sean Hansen, Mark Connor, Helen Poulsen, Catherine McGovern, Janet Stacey
Forensic Sci. Int. (2010)

Entertaining read for sure. I did some numbers for my own curiosity, figured might as well post them.

If they followed general guidelines for HID used by most cultivators here, based on the size of their room (4.32m x 3.48m) it looks like they used 6kw of light, probably 1 KW over each plant. Based on this assumption their first and best grow pulled almost .9g/w! Assuming a 9 week flowering strain, this would have put their veg time at about 8 weeks. Their 2nd and 3rd grow were .7g/w and .4g/w, the former being nuteburned, the latter being infested with "two-spotted red spider mite". Never heard of this type before, probably an accidental conflation of the two common types, red and two spotted. Or maybe some killer kiwi hybrid mite?

My favorite part of this study was that after harvest and drying and determination of yield, the cannabis was "packaged in one-ounce quantities in zip-lock plastic bags, a common quantity and packaging found to be used by indoor growers."

I fail to see the scientific merit in this step but am completely tickled by the imagery of some phd scaling zones into baggies.

edit: numbers above are for 40w/sqft (~6kw). Assuming 50 w/sqft (8kw) would reduce their efficiency to .7g/w , .6g/w and .3g/w for grows 1,2 and 3 respectively. Realistically, their canopy size was less than their room size so... pointless exercise in division I guess.

[spurr]

Here is another paper I thought is on topic to this thread, it deals in part with cananbis genotype and DNA testing, etc., useful info for some of us:


"Application of new DNA markers for forensic examination of Cannabis sativa seizures – Developmental validation of protocols and a genetic database"
Christopher Howard, PhD, Simon Gilmore, PhD, James Robertson, PhD, Rod Peakall, PhD
National Drug Law Enforcement Research Fund (NDLERF); (2008) Monograph Series No. 29

• I uploaded this file to an offshore (from the US) file host, it's too big to upload here. Turn off JavaScript to prevent ads from loading (or just use NoScript in Firefox), the passphrase is "ilovecanna" (without quotes): https://www.file-upload.net/download-3072098/29.zip.html

[azad]

Thanks for taking the time to compile such info guys.
i found this an interesting read,,sorry if already been posted....remain in harmony

https://jxb.oxfordjournals.org/content/59/15/4171.full