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Tetrahydrocannabinol (THC) is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C21H30O2) describes multiple isomers, the term THC usually refers to the Delta-9-THC isomer with chemical name (−)-trans-Δ9-tetrahydrocannabinol. Like most pharmacologically active secondary metabolites of plants, THC is a lipid found in cannabis, assumed to be involved in the plant's evolutionary adaptation, putatively against insect predation, ultraviolet light, and environmental stress.
Medical cannabis, or medical marijuana (MMJ), is cannabis and cannabinoids that are prescribed by physicians for their patients. The use of cannabis as medicine has not been rigorously tested due to production and governmental restrictions, resulting in limited clinical research to define the safety and efficacy of using cannabis to treat diseases.
Cannabinoids are compounds found in cannabis. The most notable cannabinoid is the phytocannabinoid tetrahydrocannabinol (THC), the primary psychoactive compound in cannabis. Cannabidiol (CBD) is another major constituent of the plant. At least 113 distinct cannabinoids have been isolated from cannabis.
Hemp oil is oil obtained by pressing hemp seeds. Cold pressed, unrefined hemp oil is dark to clear light green in color, with a nutty flavor. The darker the color, the grassier the flavour. It should not be confused with hash oil, a tetrahydrocannabinol-containing oil made from the Cannabis flower.
Hemp, or industrial hemp, is a botanical class of Cannabis sativa cultivars grown specifically for industrial or medicinal use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants on Earth. It was also one of the first plants to be spun into usable fiber 50,000 years ago. It can be refined into a variety of commercial items, including paper, rope, textiles, clothing, biodegradable plastics, paint, insulation, biofuel, food, and animal feed.
Cannabis sativa is an annual herbaceous flowering plant indigenous to Eastern Asia, but now of cosmopolitan distribution due to widespread cultivation. It has been cultivated throughout recorded history, used as a source of industrial fiber, seed oil, food, recreation, religious and spiritual moods and medicine. Each part of the plant is harvested differently, depending on the purpose of its use. The species was first classified by Carl Linnaeus in 1753. The word sativa means "things that are cultivated."
Cannabidiol (CBD) is a phytocannabinoid discovered in 1940. It is one of 113 identified cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. As of 2019, clinical research on CBD included studies related to anxiety, cognition, movement disorders, and pain, but there is insufficient high-quality evidence that cannabidiol is effective for these conditions.
Cannabis, also known as marijuana among other names, is a psychoactive drug from the Cannabis plant. Native to Central and South Asia, the cannabis plant has been used as a drug for both recreational and entheogenic purposes and in various traditional medicines for centuries. Tetrahydrocannabinol (THC) is the main psychoactive component of cannabis, which is one of the 483 known compounds in the plant, including at least 65 other cannabinoids, including cannabidiol (CBD). Cannabis can be used by smoking, vaporizing, within food, or as an extract.
Humulus lupulus, the common hop or hops, is a species of flowering plant in the hemp family Cannabaceae, native to Europe, western Asia and North America. It is a perennial, herbaceous climbing plant which sends up new shoots in early spring and dies back to a cold-hardy rhizome in autumn. It is dioecious.
This article presents common techniques and facts regarding the cultivation of cannabis, primarily for the production and consumption of its infructescences. Cultivation techniques for other purposes differ.
The use, sale, and possession of cannabis over 0.3% THC in the United States, despite laws in many states permitting it under various circumstances, is illegal under federal law. As a Schedule I drug under the federal Controlled Substances Act of 1970, cannabis over 0.3% THC is considered to have "no accepted medical use" and have a high potential for abuse and physical or psychological dependence. Cannabis use is illegal for any reason, with the exception of FDA-approved research programs. However, individual states have enacted legislation permitting exemptions for various uses, including medical, industrial, and recreational use.
In the United States, the use and possession of cannabis is illegal under federal law for any purpose pursuant to the Controlled Substances Act of 1970 (CSA). Under the CSA, cannabis is classified as a Schedule I substance, determined to have a high potential for abuse and no accepted medical use – thereby prohibiting even medical use of the drug. However, at the state level policies regarding the medical and recreational use of cannabis vary greatly, and in many states conflict significantly with federal law.
Cannabis drug testing describes various drug test methodologies for the use of cannabis in medicine, sport, and law. Cannabis use is highly detectable and can be detected by urinalysis, hair analysis, as well as saliva tests for days or weeks.
The history of medicinal cannabis goes back to the ancient times. Ancient physicians in many parts of the world mixed cannabis into medicines to treat pain and other ailments. In the 19th century, cannabis was introduced for therapeutic use in Western Medicine. Since then, there have been several advancements in how the drug is administered. Initially, cannabis was reduced to a powder and mixed with wine for administration. In the 1970s, synthetic THC was created to be administered as the drug Marinol in a capsule. However, the main mode of administration for cannabis is smoking because its effects are almost immediate when the smoke is inhaled. Between 1996 and 1999, eight U.S. states supported cannabis prescriptions opposing policies of the federal government. Most people who are prescribed marijuana for medical purposes use it to alleviate severe pain.
Kentucky was the greatest producer of hemp in the United States during the 19th and 20th centuries, when it was the source of three fourths of U.S. hemp fiber. Production started to decline after World War I due to the rise of tobacco as the cash crop in Kentucky and the foreign competition of hemp fibers and finished products. In 1970, federal policies virtually banned the production of industrial hemp during the War on Drugs saying all Cannabis sativa is a Schedule I controlled substance. Federal law under the Agricultural Act of 2014 allowed research back into hemp. Kentucky began production again with 33 acres in 2014. As of the 2016 harvest season, only two U.S. states other than Kentucky had over 100 acres (40 ha) in hemp production: Colorado and Tennessee. The first 500-acre commercial crop was planted in Harrison County in 2017, and research permits were issued for over 12,000 acres (4,900 ha) that year. The 2016 documentary Harvesting Liberty concerns the 21st century Kentucky hemp industry.
Cannabis in Italy is legal for medical and industrial uses, although it is strictly regulated, while it is decriminalized for recreational uses. In particular, the possession of small amounts of marijuana for personal use is a misdemeanor and it is subjected to fines, as well as the suspension of personal documents. Nevertheless, the unauthorized sale of cannabis-related products is illegal and punishable with imprisonment, as is the unlicensed cultivation of cannabis, although recent court cases have effectively established the legality of cultivating cannabis in small amounts and for exclusively personal use. The licensed cultivation of cannabis for medical and industrial purposes requires the use of certified seeds, however there is no need for authorization in order to plant certified seeds with minimal levels of psychoactive compounds.
Cannabis in Alberta became legalized on October 17, 2018 following the coming into force of federal Bill C-45. Production, distribution and consumption of cannabis had been prohibited in Canada since 1923. While some other provinces distribute cannabis through publicly owned retail monopolies, Alberta allows private companies to sell cannabis at licensed retail storefronts. Private retailers must purchase cannabis from the provincial wholesaler, the AGLC. The Alberta government is the sole e-commerce marketplace for cannabis sales within the province.
Finola is a hemp variety used to produce hemp oil.
Tochigishiro is a cultivar of hemp grown in Tochigi Prefecture, Japan. It meets international standards of non-narcotic agricultural hemp at about 0.2% THC, reckoned "remarkably low" by Sensi Seeds. It was grown in the early 20th century at Arlington Experimental Farm near the United States capital. The modern variety was developed beginning in 1973 by Fukuoka University professor of pharmacy Itsuo Nishioka from seeds "found in southern Japan", and completed c. 1982 by the Tochigi prefectural government at Tochigi Agricultural Experiment Station in Tochigi-shi. According to a National Institute of Mental Health-affiliated researcher, the strain is missing the enzyme tetrahydrocannabinolic acid synthase that makes most Cannabis capable of producing THC. It is the most widely grown cultivar in Japan in the 21st century, being exempt from prohibition under the Cannabis Control Law, due to its low levels of psychoactive chemicals. Approximately 90% of the hemp grown in Japan is the Tochigishiro variety.
Cannabitriol is a phytocannabinoid first isolated in 1966, an oxidation product of tetrahydrocannabinol which has been identified both as a trace component of cannabis and as a metabolite in cannabis users. Its pharmacology has been little studied, though it has been found to act as an antiestrogen and aromatase inhibitor.
References
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 Plant variety database - European Commission, Hemp - Cannabis sativa (A-85) accessed 2019-02-18
- 1 2 3 4 5 6 The Performance and Potentiality of Monoecious Hemp (Cannabis sativa L.) Cultivars as a Multipurpose Crop August 2018 with 220 Reads DOI: 10.3390/agronomy8090162
- ↑ Industrial Hemp Enterprise (Agdex 153/830-1) - Agriculture and Forestry - Government of Alberta
- ↑ List of Approved Cultivars for the 2018 Growing Season: Industrial Hemp Varieties Approved for Commercial Production , HealthCanada, 2018
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