THCFarmer.com
121,246 Members Log In Register
Log In Register

THE TRAINWRECK. Brought to you by thcfarrmer…..

Follow THE TRAINWRECK. Brought to you by thcfarrmer….. on THCFarmer with grow updates, member discussion, images, and cultivation notes.
Home › Forums › Medical Cannabis Cultivation › Grow Diaries › THE TRAINWRECK. Brought to you by thcfarrmer…..
Grow diary eligible · Medical Cannabis Cultivation

THE TRAINWRECK. Brought to you by thcfarrmer…..

by Captspaulding · Started
1d
Running
0
Updates
95,543
Replies
1
Images
Overview Discussion 95,543 Gallery 1
Discussion below · 95,543 replies
Page 2030 of 4778 · Replies 40,581–40,600 of 95,544
Status
Not open for further replies.
#40,586
Indica / sativa terminology proven obsolete.new science

Abstract
Two kinds of drug-type Cannabis gained layman’s terms in the 1980s. “Sativa” had origins in South Asia (India), with early historical dissemination to Southeast Asia, Africa, and the Americas. “Indica” had origins in Central Asia (Afghanistan, Pakistan, Turkestan). We have assigned unambiguous taxonomic names to these varieties, after examining morphological characters in 1100 herbarium specimens, and analyzing phytochemical and genetic data from the literature in a meta-analysis. “Sativa” and “Indica” are recognized as C. sativa subsp. indica var. indica and C. sativa subsp. indica var. afghanica, respectively. Their wild-growing relatives are C. sativa subsp. indica var. himalayensis (in South Asia), and C. sativa subsp. indica var. asperrima (in Central Asia). Natural selection initiated divergence, driven by climatic conditions in South and Central Asia. Subsequent domestication drove further phytochemical divergence. South and Central Asian domesticates can be distinguished by tetrahydrocannabinol and cannabidiol content (THC/CBD ratios, ≥7 or <7, respectively), terpenoid profiles (absence or presence of sesquiterpene alcohols), and a suite of morphological characters. The two domesticates have undergone widespread introgressive hybridization in the past 50 years. This has obliterated differences between hybridized “Sativa” and “Indica” currently available. “Strains” alleged to represent “Sativa” and “Indica” are usually based on THC/CBD ratios of plants with undocumented hybrid backgrounds (with so-called “Indicas” often delimited simply on possession of more CBD than “Sativas”). The classification presented here circumscribes and names four taxa of Cannabis that represent critically endangered reservoirs of germplasm from which modern cannabinoid strains originated, and which are in urgent need of conservation.
 
#40,587
mellingwood91 said:
Indica / sativa terminology proven obsolete.new science

Abstract
Two kinds of drug-type Cannabis gained layman’s terms in the 1980s. “Sativa” had origins in South Asia (India), with early historical dissemination to Southeast Asia, Africa, and the Americas. “Indica” had origins in Central Asia (Afghanistan, Pakistan, Turkestan). We have assigned unambiguous taxonomic names to these varieties, after examining morphological characters in 1100 herbarium specimens, and analyzing phytochemical and genetic data from the literature in a meta-analysis. “Sativa” and “Indica” are recognized as C. sativa subsp. indica var. indica and C. sativa subsp. indica var. afghanica, respectively. Their wild-growing relatives are C. sativa subsp. indica var. himalayensis (in South Asia), and C. sativa subsp. indica var. asperrima (in Central Asia). Natural selection initiated divergence, driven by climatic conditions in South and Central Asia. Subsequent domestication drove further phytochemical divergence. South and Central Asian domesticates can be distinguished by tetrahydrocannabinol and cannabidiol content (THC/CBD ratios, ≥7 or <7, respectively), terpenoid profiles (absence or presence of sesquiterpene alcohols), and a suite of morphological characters. The two domesticates have undergone widespread introgressive hybridization in the past 50 years. This has obliterated differences between hybridized “Sativa” and “Indica” currently available. “Strains” alleged to represent “Sativa” and “Indica” are usually based on THC/CBD ratios of plants with undocumented hybrid backgrounds (with so-called “Indicas” often delimited simply on possession of more CBD than “Sativas”). The classification presented here circumscribes and names four taxa of Cannabis that represent critically endangered reservoirs of germplasm from which modern cannabinoid strains originated, and which are in urgent need of conservation.
Click to expand...

Indica is just a taxonomic term meaning "of india" IIRC. So those plants, in the wild, would really be cannabis sativa var. indica if you wrote it out in accurate taxonomic terms. But even that isn't technically accurate because there is no continuous gap between the plants in nature between central and southeast asia. Everything beyond that, and even there was all likely human-influenced spread and propagation. Theres never really been a set distinction between any of the plants, in nature, or a grow room if you wanna be super technical


As a way for growers to describe how a plant wants to grow. useful.

As a way for a dispo to tell a consumer what kind of high to expect, also useful.


Are either one technical terms the way any of us use it? Nah, lol. They're just useful aids in communication.
 
#40,588
Hey if you wanna get reaaaaally wonky, take a look see into columnar cacti taxonomy. It's a minefield... a total disaster area lmao. Those plants have male and female parts in every flower, but are self sterile. Every new generation is a new species most of the time technically. And every plant from every successful seed is unique genetically almost every time as well lmao. Good luck to the taxonomists in that field, they will need it.
 
#40,589
Thatoneguyyouknow_ said:
Indica is just a taxonomic term meaning "of india" IIRC. So those plants, in the wild, would really be cannabis sativa var. indica if you wrote it out in accurate taxonomic terms. But even that isn't technically accurate because there is no continuous gap between the plants in nature between central and southeast asia. And never really was, let alone in a grow room.


As a way for growers to describe how a plant wants to grow. useful.

As a way for a dispo to tell a consumer what kind of high to expect, also useful.


Are either one technical terms the way any of us use it? Nah, lol. There just useful aids in communication.
Click to expand...
This paper breaks down the taxonomic classifications even further. for example - a Hindu Kush landrace harvested in Chitrali is classified as " Cannabis sativa subsp. indica var. afghanica " while a Thai landrace is " Cannabis sativa subsp. indica var. indica" , another "C. sativa subsp. sativa var. sativa"

yes, for general growth type and effect, Sativa and Indica are useful
 
#40,590
Thatoneguyyouknow_ said:
Hey if you wanna get reaaaaally wonky, take a look see into columnar cacti taxonomy. It's a minefield... a total disaster area lmao. Those plants have male and female parts in every flower, but are self sterile. Every new generation is a new species most of the time technically. And every plant from every successful seed is unique genetically almost every time as well lmao. Good luck to the taxonomists in that field, they will n
Click to expand...
my inital love is mycology, now cannabis growing, Ive had my eye on Trichs for awhile tho :D
 
#40,591
mellingwood91 said:
This paper breaks down the taxonomic classifications even further. for example - a Hindu Kush landrace harvested in Chitrali is classified as " Cannabis sativa subsp. indica var. afghanica " while a Thai landrace is " Cannabis sativa subsp. indica var. indica" , another "C. sativa subsp. sativa var. sativa"

yes, for general growth type and effect, Sativa and Indica are useful
Click to expand...
and for nothing at all but taxonomy semantics and interesting conversation is the rest of that information useful lol. Unfortunately.
 
#40,593
mellingwood91 said:
my inital love is mycology, now cannabis growing, Ive had my eye on Trichs for awhile tho :D
Click to expand...
I need to redo the isolates some day. I have several dead LC's in the fridge lmao. I always end up with way more fungi then i ever need, and fall away from it til i need more lmao.
 
#40,595
Thatoneguyyouknow_ said:
and for nothing at all but taxonomy semantics and interesting conversation is the rest of that information useful lol. Unfortunately.
Click to expand...

I have great interest in finding varieties with alternative growth styles, like the vine-type or run-types. I think that, with selection and work they could be quickly evolved into something quite different? I play with ideas thats all
 
#40,596
mellingwood91 said:
I have great interest in finding varieties with alternative growth styles, like the vine-type or run-types. I think that, with selection and work they could be quickly evolved into something quite different? I play with ideas thats all
Click to expand...
those creeper phenos that like to branch out completely horizontally? I got a few, theyre heritage is the columbian land race. Not "columbian gold", the fire hair pure sativa trees that grow in the mountains down there.
 
#40,597
Thatoneguyyouknow_ said:
those creeper phenos that like to branch out completely horizontally? I got a few, theyre heritage is the columbian land race. Not "columbian gold", the fire hair pure sativa trees that grow in the mountains down there.
Click to expand...
exactly those. I have Frankenstein dreams of building a wonderous rootstock in which to plant autos indoors. I have a seedling growing inside a mother outdoors right now, I'm stoked. But I would love a creeper type for a base, as it could be moved easily to rest in other pots, do a live rooting (strip a shoot, prep it like a soil clone, and stick that shit in dirt still on mama. itll grow roots and you can cut the cord later) im sure you know what im saying but said it for record.
 
Status
Not open for further replies.
Page 2030 of 4778 · Replies 40,581–40,600 of 95,544
Back
Top Bottom