A Comparison of Industrial Hemp vs. Marijuana

Image from Hemp Ethics, retrieved Jan. 26, 2013.

"The confusion between hemp and marijuana stems from the fact that both are by-products of the plant cannabis sativa, and both contain a psychoactive chemical called tetrahydracannabinol (THC). Marijuana, the psychoactive form of cannabis, can contain a THC level of four to 20 percent. Seed varieties of the hemp plant that have been developed through genetic engineering carry THC levels of less than one percent and are incapable of producing a "high" effect no matter how much is smoked."

-excerpt from Wilke, Anne W. "Rethinking hemp." E July-Aug. 1996: 48+. Canadian Periodicals Index Quarterly. Web. 26 Jan. 2013.

"Industrial hemp has low THC levels compared to marijuana specifically cultivated for personal psychoactive use. Whereas marijuana that can be smoked usually contains between five and ten percent THC, industrial hemp contains about one-tenth of that. In order to get a psychoactive effect, one would need to smoke ten or twelve hemp cigarettes over a very short period of time. The reason for the low THC content in hemp is that most THC is formed in resin glands on the buds and flowers of the female cannabis plant. Industrial hemp is not cultivated to produce buds, and therefore lacks the primary component that forms the marijuana high. Furthermore, industrial hemp has higher concentrations of a chemical called Cannabidiol (CBD) that has a negative effect on THC and lessens its psychoactive effects when smoked in conjunction.

Compared to cannabis sativa indica, cannabis sativa sativa (industrial hemp variety) has a much stronger fiber. This fiber can be used in anything from rope and blankets to paper. Marijuana fiber has a low tensile strength and will break or shred easily, making it a poor fibrous plant when compared to industrial hemp.

Industrial hemp also grows differently than THC-containing cannabis. Hemp is typically grown up, not out, because the focus is not on producing buds but on producing length of stalk. In this way, hemp is a very similar crop to bamboo. The stalk contains the fiber and hard, woody core material that can be used for a variety of purposes, even carpentry. Generally, THC-producing marijuana plants are grown to an average of five feet in height. Industrial hemp on the other hand is grown to a height of ten to fifteen feet before harvest. Also, it is fairly difficult to grow concealed marijuana within industrial hemp crops as the DEA alleges. Since industrial hemp is grown so close together and is generally a very narrow, vertical growth crop, any THC-producing marijuana would stick out like a sore thumb. Its wide growth would require a large amount of space to itself in order to get adequate sunlight from beyond the tops of the competing industrial hemp plants.

The two also differ in the areas that they can be effectively grown. THC-producing Marijuana must be grown in generally warm and humid environments in order to produce the desired quantity and quality of THC-containing buds. However, since industrial hemp does not contain these buds, and the hardy parts of the plant are the more desired, it can be grown in a wider range of areas. Generally, industrial hemp grows best on fields that provide high yields for corn crops, which includes most of the Southwest, Southeast, and Northeast United States. Furthermore, since industrial hemp can use male plants as well as female plants (since the object is not THC production), higher crop yields can result.

Hemp also has little potential to produce high-content THC when pollinated. As long as industrial hemp plants are pollinated by members of their own crop, then the genetics will remain similar with low levels of THC. One would have to place several marijuana plants in close vicinity in over several generations order to alter the genetics substantially of the offspring.

Since there are so many differences between industrial hemp and high-THC marijuana, it seems to make sense that it would be a fostered, rather than demonized crop. Although technically hemp is not illegal to grow, it requires obtaining a special permit from the DEA. These permits are rarely given out and require that the crop be surrounded by security measures such as fences, razor wire, security guards, or dogs. For a crop that has little-to-no potential to get people high, the current attitude is both irresponsible and draconian. Industrial hemp could transform the economy of the United States in a positive and beneficial way, and therefore should be exploited to its full potential."

-from Differences Between Industrial Hemp and Marijuana: Agriculture Versus Psychoactive Culture (Dec. 4 2006)

hemp, cannabis, marijuana comparison
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