Cannabis, a drug prepared from the plant Cannabis sativa (including marijuana, resin, and “skunk”), is used widely throughout the world and is especially popular in North America, Western Europe, West and Central Africa, and Oceania (United Nations Office on Drugs and Crime, 2009). Several studies within the past decade have investigated the effect of continuous use of cannabis on psychotic illnesses, specifically schizophrenia. Zammit, Allebeck, Andreasson, Lundberg, and Lewis (2002) in Sweden found that those who smoked cannabis had a twofold increased risk of developing schizophrenia within 15 years. In addition, the researchers also found a dose–response relationship; subjects who used cannabis more heavily (over 50 reported occasions) were six times as likely to develop schizophrenia compared to those who did not use cannabis at all.
“It probably should be called snake oil,” says Tishler. (So...save your cash.) Not only does hemp oil not have any real health benefits, but it may contain stuff that's actually bad for you. "At the moment what you can buy is less regulated than the potato at the supermarket," says Tishler. When hemp oil is extracted, there's a risk that pesticides, plastics, and heavy metals could make their way in, says Tishler.
The above uses are based on hemp as a mechanical strengthener of materials. Hemp can also be chemically combined with materials. For example, hemp with gypsum and binding agents may produce light panels that might compete with drywall. Hemp and lime mixtures make a high quality plaster. Hemp hurds are rich in silica (which occurs naturally in sand and flint), and the hurds mixed with lime undergo mineralization, to produce a stone-like material. The technology is most advanced in France (Fig. 26). The mineralized material can be blown or poured into the cavities of walls and in attics as insulation. The foundations, walls, floors, and ceilings of houses have been made using hemp hurds mixed with natural lime and water. Sometimes plaster of Paris (pure gypsum), cement, or sand is added. The resulting material can be poured like concrete, but has a texture vaguely reminiscent of cork—much lighter than cement, and with better heat and sound-insulating properties. An experimental “ceramic tile” made of hemp has recently been produced (Fig. 27).
Hempworx Distributors can sell all of the other My Daily Choice products worldwide. If you like those products you may want to get started that way. This was the last PDF Hempworx distributed. If you scroll down the PDF file, near the end, you will see the timetable for reentering the EU, Canada, and Ghana. Hempworx missed the July target date to begin shipping to Canada.
Cannabis sativa L. subsp. sativa var. sativa is the variety grown for industrial use, while C. sativa subsp. indica generally has poor fiber quality and female buds from this variety are primarily used for recreational and medicinal purposes. The major differences between the two types of plants are the appearance, and the amount of Δ9-tetrahydrocannabinol (THC) secreted in a resinous mixture by epidermal hairs called glandular trichomes, although they can also be distinguished genetically. Oilseed and fiber varieties of Cannabis approved for industrial hemp production produce only minute amounts of this psychoactive drug, not enough for any physical or psychological effects. Typically, hemp contains below 0.3% THC, while cultivars of Cannabis grown for medicinal or recreational use can contain anywhere from 2% to over 20%.
Selection for fiber has resulted in strains that have much more bark fiber tissues and much less woody core than encountered in narcotic strains, oilseed strains, and wild plants (Fig. 12). In non-fiber strains of Cannabis, bark can be less than one quarter of the stem tissues (i.e. more than three quarters can be woody core). By contrast, in fiber strains half of the stem tissues can be bark, and more than half of this can be the desirable long primary fibers (de Meijer 1995). Non-fiber strains rarely have as much as 15% fiber in the bark.
Millennia of selective breeding have resulted in varieties that display a wide range of traits; e.g. suited for a particular environments/latitudes, producing different ratios and compositions of terpenoids and cannabinoids (CBD, THC, CBG, CBC, CBN...etc.), fibre quality, oil/seed yield, etc. Hemp grown for fiber is planted closely, resulting in tall, slender plants with long fibers.
The self-medication hypothesis was not supported in either the van Os or Henquet studies. Both studies found that early psychotic symptoms did not predict an increased risk of using cannabis (as is required by the self-medication hypothesis). The direction of the relationships was from early cannabis use to psychosis. Their negative results have recently been supported by Verdoux et al. (2002), who examined the temporal relationship between cannabis use and psychotic symptoms using an experience sampling method. They asked 79 college students to report on their drug use and experience of psychotic symptoms at randomly selected time points, several times each day over 7 consecutive days. The sample included high cannabis users (n = 41) and an over-representation of students identified as vulnerable to psychosis (n = 16). Verdoux and colleagues found that in time periods when cannabis was used, users reported more unusual perceptions, and these relationships were stronger in vulnerable individuals. There was no temporal relationship between reporting unusual experiences and using cannabis use, as would be predicted by the self-medication hypothesis.
That being said, it was unlikely that the federal government was interested in pursuing individuals complying with state-mandated regulations surrounding legalized cannabis for recreational use, although the CSA law still gives them authority to do so. However, the new Trump administration may change this thinking and users of legal marijuana and legal dispensaries await further action and clarifying rules.
Nabiximols (brand name Sativex) is a patented medicine containing CBD and THC in equal proportions. The drug was approved by Health Canada in 2005 for prescription to treat central neuropathic pain in multiple sclerosis, and in 2007 for cancer related pain. In New Zealand Sativex® is approved for use as an add-on treatment for symptom improvement in patients with moderate to severe spasticity due to Multiple Sclerosis who have not responded adequately to other anti-spasticity medication and who demonstrate clinically significant improvement in spasticity related symptoms during an initial trial of therapy.
HempWorx CBD Oil and My Daily Choice have been shipping internationally to more than 85 countries since 2014. With the purest CBD Oil line of products launched in May of 2017, we did not expect the overnight success that this product has become, but we have grown buy adding a new warehouse in Nevada to handle domestic needs and our New York warehouse to handle most international shipping including Canada. CBD is one of the most beneficial products in natural medicine today. We proudly offer shipping to Australia, Canada, United Kingdom, France, Italy, Spain, Germany, and many more countries worldwide.
Earliest reference to euphoric use of C. sativa appears to date to China of 5 millennia ago, but it was in India over the last millennium that drug consumption became more firmly entrenched than anywhere else in the world. Not surprisingly, the most highly domesticated drug strains were selected in India. While C. sativa has been used as a euphoriant in India, the Near East, parts of Africa, and other Old World areas for thousands of years, such use simply did not develop in temperate countries where hemp was raised. The use of C. sativa as a recreational inebriant in sophisticated, largely urban settings is substantially a 20th century phenomenon.
Also, all HempWorx products are 100% organic and non-genetically modified, and the company apparently makes all of its products right here in the United States. Moreover, the hemp used to extract the oil is grown in Kentucky, and unlike a lot of firms who claim their CBD products to be lab tested, HempWorx actually ‘walks the walk’ by publishing up-to-date details of their test results on the site (you can find them under the “HempWorx Store” tab by clicking the “CBD Oil Certification” button).
Step 1 – ENROLL IN HEMPWORX – CLICK HERE. It’s FREE! Hempworx has one of the best websites and marketing systems in the industry. It’s free to join and take a free tour (because they know you’ll love it!). Your Hempworx website does all the heavy lifting. It takes credit cards, automatically updates when new products are added and tracks all your Hempworx leads and opportunities.
The ECS is responsible for setting the baseline activity levels of our immune system and nervous system, which then work to maintain our health. When the ECS falls out of whack, the systems that are regulated by it can begin to malfunction. CBD promotes the normal health and function of the endocannabinoid system, so it’s possible that CBD can help to alleviate the symptoms of conditions that are caused by dysfunction of the endocannabinoid system.
I discovered in my research that hemp is really legal in all 50 states so I guess this must be a very complicated thing. It may be likely some states are allowed to grow it and others aren’t, I don’t know but all I know is somewhere in my research it said it was legal in all 50 states. Anyway, I got my oil on auto delivery, I really need to start using it in my food a little more often to help with certain health issues including but not limited to arthritis pain 😇👍
Fig. 2. Cannabis sativa. This superb composite plate by artist Elmer Smith, often reproduced at a very small scale and without explanation in marijuana books, is the best scientific illustration of the hemp plant ever prepared. 1. Flowering branch of male plant. 2. Flowering branch of female plant. 3. Seedling. 4. Leaflet. 5. Cluster of male flowers. 6. Female flower, enclosed by perigonal bract. 7. Mature fruit enclosed in perigonal bract. 8. Seed (achene), showing wide face. 9. Seed, showing narrow face. 10. Stalked secretory gland. 11. Top of sessile secretory gland. 12. Long section of cystolith hair (note calcium carbonate concretion at base). Reproduced with the permission of Harvard University, Cambridge, MA.
This is what you’ll want (or need) if you’re looking for a “light” reprieve from discomfort. Or if you’re trying a THC:CBD edible for the first time—without any of the unpleasant side effects. Or if you’re taking CBD on a daily basis as maintenance. I guess what I’m trying to say is that Plus’ pineapple and coconut gummies will do you no harm. It’s a safe bet for beginners.
Pinfold Consulting. 1998. (G. Pinfold Consulting Economists Ltd. and J. White, InfoResults Ltd.). A maritime industrial hemp product marketing study. Prepared for Nova Scotia Agriculture and Marketing (Marketing and Food Industry Development), and New Brunswick Agriculture & Rural Development (Marketing and Business Development). agri.gov.ns.ca/pt/agron/hemp/hempms.htm
We’ve systematically sought out quality hemp cultivars for our CBD oil ingredients. We always test for purity and potency with third-party laboratories because safety is paramount to Bluebird. Hemp, because of its innate ability to thrive easily, doesn’t require pesticides (the aromatic terpene compounds in hemp can actually act as natural pesticides), fertilizers, or herbicides in its cultivation, and requires much less water than standard commercial farming. All of our hemp is grown and processed in the USA using organic methods.
Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include IBM Watson Micromedex (updated 1 Mar 2019), Cerner Multum™ (updated 1 Mar 2019), Wolters Kluwer™ (updated 28 Feb 2019) and others. Refer to our editorial policy for content sources and attributions.
I’ve used several oils before trying Hempworx. Negative reviews are often from other competitors or other MLM companies too. MLM has received a bad rep because of pushy reps and reps that have spammed people for years. It’s unfortunate that people review a product based upon their opinion of MLM reps. If you really take a look at the Hempworx oil, you will see that it is a pure product. The oil does not have any added non-hemp carrier oil. And if you go to an affiliates website, all you need to do is scroll down to the bottom and click on FAQ. You will get a ton of information. I also think people should keep in mind that if you are google searching for reviews on a particular product, pretty much all the “reviews” out there are also affiliates of each of those companies, and when you click on the links provided, they are receiving a percentage of the sale as well.
So-called “pure hybrids,” while oxymoronic in name, indicate marijuana strains that are believed to offer a perfect blend or balance of sativa’s energizing and indica’s sedating effects. Other hybrid strains of cannabis tend to place the emphasis on one end of the spectrum or the other. These are called “sativa-dominant” or “indica-dominant,” accordingly.
In 1924, Russian botanist D.E. Janichevsky concluded that ruderal Cannabis in central Russia is either a variety of C. sativa or a separate species, and proposed C. sativa L. var. ruderalis Janisch, and Cannabis ruderalis Janisch, as alternative names. In 1929, renowned plant explorer Nikolai Vavilov assigned wild or feral populations of Cannabis in Afghanistan to C. indica Lam. var. kafiristanica Vav., and ruderal populations in Europe to C. sativa L. var. spontanea Vav. In 1940, Russian botanists Serebriakova and Sizov proposed a complex classification in which they also recognized C. sativa and C. indica as separate species. Within C. sativa they recognized two subspecies: C. sativa L. subsp. culta Serebr. (consisting of cultivated plants), and C. sativa L. subsp. spontanea (Vav.) Serebr. (consisting of wild or feral plants). Serebriakova and Sizov split the two C. sativa subspecies into 13 varieties, including four distinct groups within subspecies culta. However, they did not divide C. indica into subspecies or varieties.
^ Juliet Eilperin (February 11, 2013), "'Good seed' versus 'evil weed': Hemp activists eye legalization", The Washington Post – via The Japan Times Online, [A] couple of factors — the high taxes the federal government imposed on growing hemp in the late 1930s and again in the early '50s, and then the DEA's interpretation of the 1970 law — made producing hemp nearly impossible. Since the DEA only grants permits in rare instances and demands costly, elaborate security precautions, large-scale hemp growing in the United States is not viable.
Indoor marijuana grows provide the most control over growing conditions. With a simple setup including a tent, proper lighting, and an air circulation system, home marijuana growers can produce consistent yields. Both soil and hydro systems can be utilized for indoor marijuana grows. Soil setups are generally cheaper and more forgiving, but hydro systems tend to be more common.
Although marijuana smoke contains a number of carcinogens findings from a limited number of well-designed studies do not suggest an increased risk for the development of either lung or upper airway cancer from light or moderate use. However, the evidence is mixed when it comes to the carcinogenic risks of heavy, long-term marijuana users, according to this study.
This guide is an introduction to anyone looking to inform themselves about the reality of cannabis. It covers basic information about the marijuana plant, cannabis preparations, and the crucial elements of plant anatomy and science. This guide to marijuana also gives an overview of the most popular medical and recreational uses of cannabis. It offers a survey of the most important medical cannabis research while highlighting emerging trends in the legal cannabis market. The guide also introduces those new to cannabis to the many ways to consume marijuana, and much more.
Cannabis sativa L. has been selectively bred for recreational uses to obtain the maximum “high”, so the level of delta-9-tetrahydrocannabinol (THC) have been increased very much (up to 20-25%) and, in upping the potency through selective breeding, CBD has been selectively eliminated from recreational varieties or, eventually, it is rarely found in specific varieties. CBD is often found in hemp – in varieties used to produce fiber and seeds. But the combination of CBD/THC in cannabis seem to be beneficial for medical use.
Even if you live in a state where recreational marijuana is legal, the mainstream sale of CBD in bakeries and coffee shops is still a whole different issue, according to Griffen Thorne, a California-based attorney with Harris Bricken, a firm specializing in cannabis-trade issues. For cannabis, “one of the things that’s a really big requirement in California is safety testing at the distributor level,” Thorne says. “That’s not really there yet for hemp CBD products.” For instance, CBD products sometimes contain enough lingering THC to produce psychoactive effects.
By the 1930s, marijuana was banned in 24 states. The newly minted Federal Bureau of Narcotics launched a campaign against the drug, and newspapers fueled hysteria with headlines like the 1933 Los Angeles Examiner's "Murder Weed Found Up and Down the Coast — Deadly Marihuana Dope Plant Ready for Harvest That Means Enslavement of California Children." By 1937, Congress passed the Marihuana Tax Act, which effectively banned marijuana except for a few medicinal purposes, according to "Smoke Signals: A Social History of Marijuana – Medical, Recreational and Legal" (Scribner, 2012).
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The heat is very much on CBD oil sellers these days as the FDA continues to crack down on companies selling “questionable” (to put it nicely) hemp-based products. In fact, since 2015 – when the FDA first issued warning letters to multiple CBD sellers – the industry has been forced to clean up its act, at least in terms of manufacturing operations and brand transparency.
I totally agree. The greed of the pharmaceutical with their lobbyist to stop the government from making it a schedule III drug so much more research can be done. They do not care about the people, just money. We the people must rise up and let our government know, we care more about our friends and family than the money they give, to you congress men/women and senators get, and we VOTE. The only power we have is writing or calling congress men/women and senators, huge rallies and each and every ones VOTE. They would rather stay in office, than even receive big monies from big pharm for their campaigns. VOTES will win over.
Peltz will be granted options to purchase 19.9 million common shares in the company at C$10.34 ($7.74) a share. The options will vest over a four-year period on a quarterly basis, and the vesting may accelerate if the company meet certain goals, including the consummation of certain defined transactions and the share price being at least at C$31.02 and C$41.36 for a specified number of trading days.
Public health also takes various actions to limit the health disparities between different areas of the country and, in some cases, the continent or world. One issue is the access of individuals and communities to health care in terms of financial, geographical or socio-cultural constraints to accessing and using services. Applications of the public health system include the areas of maternal and child health, health services administration, emergency response, and prevention and control of infectious and chronic diseases.
No, absolutely not. Our pure CBD dominant oil is produced in an FDA Approved facility in Kentucky with the blessings of the Government of Kentucky including Senate Majority Leader Mitch McConnell, Former Presidential Candidate Senator Rand Paul, and Governor Matt Bevin. All HW Products are manufactured here including Renew, Revive, Relief, and all of the pure CBD oil and Dog Treats. Contact us if you are looking for more information here.
Harvesting tall varieties for grain is difficult. In France, the principal grower of dual-purpose varieties, the grain is taken off the field first, leaving most of the stalks for later harvest (Fig. 49). Putting tall whole plants through a conventional combine results in the straw winding around moving parts, and the fibers working into bearings, causing breakdown, fires, high maintenance, and frustration. Following the French example of raising the cutting blade to harvest the grain is advisable. Growing short varieties dedicated to grain production eliminates many of the above problems, and since the profitability of hemp straw is limited at present, seems preferable. Grain growers should be aware that flocks of voracious birds are a considerable source of damage to hempseed, particularly in small plantations.
Another notable study conducted by Mechoulam was done on mice bred to have a version of type-1 diabetes. The diabetes was designed to manifest right around 14 weeks, so the mice were treated with CBD for the first 7 weeks of their life and then again in another 7 weeks. He concluded that only 30% had developed diabetes compared to the 90-100% given the placebo.
And now that the updated U.S. Farm Bill has been passed which more or less legalizes hemp, we can expect to start seeing more and more very high quality CBD oils hit the American market in the coming years. HempWorx has been around for awhile, and they’re simply doing what they can from a business perspective in order to gain a foothold in the industry. In our mind, this should not take away at all from the quality of their products.
HempWorx CBD is short for HempWorx CBD (cannabidiol) products featuring HempWorx CBD oil and 5 additional CBD products. The HempWorx CBD oil products are full spectrum meaning they consist of many parts of the hemp plant with a host of cannabinoids rather than isolated CBD alone. Our third party lab test results show you the breakdown of the cannabinoid profile and potency. Full spectrum CBD Oil combines the powerful active ingredients of the hemp plant to create an entourage effect which has been shown to be more effective in treating conditions such as chronic pain than isolated CBD only.
The most pressing need of the hemp industry in North America is for the breeding of more productive oilseed cultivars. At present, mainly European cultivars are available, of which very few are suitable for specialized oilseed production. More importantly, hempseed oil is not competitive, except in the novelty niche market, with the popular food oils. As argued above, to be competitive, hemp should produce approximately 2 t/ha; at present 1 t/ha is considered average to good production. Doubling the productive capacity of a conventional crop would normally be considered impossible, but it needs to be understood just how little hemp has been developed as an oilseed. There may not even be extant land races of the kind of hemp oilseed strains that were once grown in Russia, so that except for a very few very recent oilseed cultivars, there has been virtually no breeding of oilseed hemp. Contrarily, hemp has been selected for fiber to the point that some breeders consider its productivity in this respect has already been maximized. Fiber strains have been selected for low seed production, so that most hemp germplasm has certainly not been selected for oilseed characteristics. By contrast, drug varieties have been selected for very high yield of flowers, and accordingly produce very high yield of seeds. Drug varieties have been observed to produce more than a kilogram of seed per plant, so that a target yield of several tonnes per hectare is conceivable (Watson and Clarke 1997). Of course, the high THC in drug cultivars makes these a difficult source of germplasm. However, wild plants of C. sativa have naturally undergone selection for high seed productivity, and are a particularly important potential source of breeding germplasm.
CBD shatter is CBD isolate (which have already discussed above) but in the form of isolated crystals and with terpenes added. Like CBD isolate, it is the purest form of cannabidiol, or CBD, that you can get — it just has some extras added to give it the flavor and strain profile of some other types. In other words, to make CBD shatter, we’ve infused CBD isolate with terpenes.
Hemp is considered by a 1998 study in Environmental Economics to be environmentally friendly due to a decrease of land use and other environmental impacts, indicating a possible decrease of ecological footprint in a US context compared to typical benchmarks. A 2010 study, however, that compared the production of paper specifically from hemp and eucalyptus concluded that "industrial hemp presents higher environmental impacts than eucalyptus paper"; however, the article also highlights that "there is scope for improving industrial hemp paper production". Hemp is also claimed to require few pesticides and no herbicides, and it has been called a carbon negative raw material. Results indicate that high yield of hemp may require high total nutrient levels (field plus fertilizer nutrients) similar to a high yielding wheat crop.
Then came World War II. The Japanese attack on Pearl Harbor shut off foreign supplies of "manila hemp" fiber from the Philippines. The USDA produced a film called "Hemp For Victory" to encourage U.S. farmers to grow hemp for the war effort. The U.S. government formed the War Hemp Industries Department and subsidized hemp cultivation. During the war, U.S. farmers grew about a million acres of hemp across the Midwest as part of that program.
Hemp does best on a loose, well-aerated loam soil with high fertility and abundant organic matter. Well-drained clay soils can be used, but poorly-drained clay soils are very inappropriate because of their susceptibility to compaction, which is not tolerated. Young plants are sensitive to wet or flooded soils, so that hemp must have porous, friable, well-drained soils. Sandy soils will grow good hemp, provided that adequate irrigation and fertilization are provided, but doing so generally makes production uneconomical. Seedbed preparation requires considerable effort. Fall plowing is recommended, followed by careful preparation of a seedbed in the spring. The seedbed should be fine, level, and firm. Seed is best planted at 2–3 cm (twice as deep will be tolerated). Although the seedlings will germinate and survive at temperatures just above freezing, soil temperatures of 8°–10°C are preferable. Generally hemp should be planted after danger of hard freezes, and slightly before the planting date of maize. Good soil moisture is necessary for seed germination, and plenty of rainfall is needed for good growth, especially during the first 6 weeks. Seeding rate is specific to each variety, and this information should be sought from the supplier. Fiber strains are typically sown at a minimum rate of 250 seeds per m2 (approximately 45 kg/ha), and up to three times this density is sometimes recommended. In western Europe, seeding rates range from 60–70 kg/ha for fiber cultivars. Recommendations for seeding rates for grain production vary widely, from 10–45 kg/ha. Densities for seed production for tall, European, dual-purpose cultivars are less than for short oilseed cultivars. Low plant densities, as commonly found in growing tall European cultivars for seed, may not suppress weed growth adequately, and under these circumstances resort to herbicides may pose a problem for those wishing to grow hempseed organically. Hemp requires about the same fertility as a high-yielding crop of wheat. Industrial hemp grows well in areas that corn produces high yields. Growing hemp may require addition of up to 110 kg/ha of nitrogen, and 40–90 kg/ha of potash. Hemp particularly requires good nitrogen fertilization, more so for seed production than fiber. Adding nitrogen when it is not necessary is deleterious to fiber production, so that knowledge of the fertility of soils being used is very important. Organic matter is preferably over 3.5%, phosphorus should be medium to high (>40 ppm), potassium should be medium to high (>250 ppm), sulfur good (>5,000 ppm), and calcium not in excess (<6,000 ppm).
Probably indigenous to temperate Asia, C. sativa is the most widely cited example of a “camp follower.” It was pre-adapted to thrive in the manured soils around man’s early settlements, which quickly led to its domestication (Schultes 1970). Hemp was harvested by the Chinese 8500 years ago (Schultes and Hofmann 1980). For most of its history, C. sativa was most valued as a fiber source, considerably less so as an intoxicant, and only to a limited extent as an oilseed crop. Hemp is one of the oldest sources of textile fiber, with extant remains of hempen cloth trailing back 6 millennia. Hemp grown for fiber was introduced to western Asia and Egypt, and subsequently to Europe somewhere between 1000 and 2000 BCE. Cultivation in Europe became widespread after 500 ce. The crop was first brought to South America in 1545, in Chile, and to North America in Port Royal, Acadia in 1606. The hemp industry flourished in Kentucky, Missouri, and Illinois between 1840 and 1860 because of the strong demand for sailcloth and cordage (Ehrensing 1998). From the end of the Civil War until 1912, virtually all hemp in the US was produced in Kentucky. During World War I, some hemp cultivation occurred in several states, including Kentucky, Wisconsin, California, North Dakota, South Dakota, Minnesota, Indiana, Illinois, Ohio, Michigan, Kansas, and Iowa (Ehrensing 1998). The second world war led to a brief revival of hemp cultivation in the Midwest, as well as in Canada, because the war cut off supplies of fiber (substantial renewed cultivation also occurred in Germany for the same reason). Until the beginning of the 19th century, hemp was the leading cordage fiber. Until the middle of the 19th century, hemp rivaled flax as the chief textile fiber of vegetable origin, and indeed was described as “the king of fiber-bearing plants,—the standard by which all other fibers are measured” (Boyce 1900). Nevertheless, the Marihuana Tax Act applied in 1938 essentially ended hemp production in the United States, although a small hemp fiber industry continued in Wisconsin until 1958. Similarly in 1938 the cultivation of Cannabis became illegal in Canada under the Opium and Narcotics Act.
Canadian experience with growing hemp commercially for the last 4 years has convinced many growers that it is better to use a single-purpose cultivar, seed or fiber, than a dual-purpose cultivar. The recent focus of Canadian hemp breeders has been to develop cultivars with high seed yields, low stature (to avoid channeling the plants’ energy into stalk, as is the case in fiber cultivars), early maturation (for the short growing seasons of Canada), and desirable fatty acid spectrum (especially gamma-linolenic acid).
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The objectivity of scientific evaluation of the medicinal value of marijuana to date has been questioned. In the words of Hirst et al. (1998): “The ...status of cannabis has made modern clinical research almost impossible. This is primarily because of the legal, ethical and bureaucratic difficulties in conducting trials with patients. Additionally, the general attitude towards cannabis, in which it is seen only as a drug of abuse and addiction, has not helped.” In a recent editorial, the respected journal Nature (2001) stated: “Governments, including the US federal government, have until recently refused to sanction the medical use of marijuana, and have also done what they can to prevent its clinical testing. They have defended their inaction by claiming that either step would signal to the public a softening of the so-called ‘war on drugs.’... The pharmacology of cannabinoids is a valid field of scientific investigation. Pharmacologists have the tools and the methodologies to realize its considerable potential, provided the political climate permits them to do so.” Given these current demands for research on medicinal marijuana, it will be necessary to produce crops of drug types of C. sativa.