How does the % THC in marijuana get so high?

[mr.meman]

In health class, we are talking about drugs, particularily marijuana, and our teacher told us about drugs like BC bud(25%)which are very dangerous and contain much more THC than regular marijuana. I know that wild marijuana is 2% THC, but how exactly is such more of it added?

[Squink]

[www.ndaa-apri.org/pdf/ntlc_cannabis.pdf+"highest+%thc"+"dry+weight"+marijuana&hl=en&client=firefox-a]Some](http://64.233.179.104/search?q=cache:gbU7ihXqDdkJ:[url) numbers:

Potency has been increasing steadily over the years
through selective cultivation. The potency of confiscated
marijuana samples rose from less than 1.5% THC in 1980
to 4.2% THC in 1997 [113]. Marijuana represented the
majority of seized specimens in the United States, with
hash oil representing less than 1%, and hashish less than
5% of all samples over the last decade. Between 1990 and
1997, the mean percentages of THC in marijuana, hashish,
and hash oil seizures were 3.5, 6.6, and 14.0%, respec-
tively. The highest THC concentrations in seized materi-
als were marijuana 29.9%, sinsemilla 33.1%, hashish
52.9%, and hash oil 47.0%.

You increase the THC content of marijuana the same way you increase the capsaicin content of peppers, by selective breeding, and careful control of growing conditions.

[Squink]

fixed link

[groman]

@mr. meman

In health class, we are talking about drugs, particularily marijuana, and our teacher told us about drugs like BC bud(25%)which are very dangerous and contain much more THC than regular marijuana. I know that wild marijuana is 2% THC, but how exactly is such more of it added?

I don’t mean to start a flamewar or a great debate, but what, in this case, is meant by “very dangerous”? What is the LD50 for THC?

[Catalyst]

Do these higher concentrations pose any health risks? Everything I’ve read has said that it’s essentially impossible to overdose on THC. What’s the straight, er, dope?

[Catalyst]

I hate to answer my own question, but here’s Wikipedia’s take on it.

[John_Kentzel-Griffin]

@Squink

[www.ndaa-apri.org/pdf/ntlc_cannabis.pdf+"highest+%thc"+"dry+weight"+marijuana&hl=en&client=firefox-a]Some](http://64.233.179.104/search?q=cache:gbU7ihXqDdkJ:[url) numbers:
You increase the THC content of marijuana the same way you increase the capsaicin content of peppers, by selective breeding, and careful control of growing conditions.

Question asked and answered.

I’ll close this before we start getting growing tips.

DrMatrix - GQ Moderator