Cannabis Strain
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''Cannabis'' strains are either pure or
hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...
varieties Variety may refer to: Arts and entertainment Entertainment formats * Variety (radio) * Variety show, in theater and television Films * ''Variety'' (1925 film), a German silent film directed by Ewald Andre Dupont * ''Variety'' (1935 film), ...
of the plant genus ''
Cannabis ''Cannabis'' () is a genus of flowering plants in the family Cannabaceae. The number of species within the genus is disputed. Three species may be recognized: ''Cannabis sativa'', '' C. indica'', and '' C. ruderalis''. Alternatively ...
'', which encompasses the species '' C. sativa'', '' C. indica'', and '' C. ruderalis''. Varieties are developed to intensify specific characteristics of the plant, or to differentiate the
strain Strain may refer to: Science and technology * Strain (biology), variants of plants, viruses or bacteria; or an inbred animal used for experimental purposes * Strain (chemistry), a chemical stress of a molecule * Strain (injury), an injury to a mu ...
for the purposes of marketing or to make it more effective as a
drug A drug is any chemical substance that causes a change in an organism's physiology or psychology when consumed. Drugs are typically distinguished from food and substances that provide nutritional support. Consumption of drugs can be via insuffla ...
. Variety names are typically chosen by their growers, and often reflect properties of the plant such as taste, color, smell, or the origin of the variety. The ''Cannabis'' strains referred to in this article are primarily those varieties with recreational and medicinal use. These varieties have been cultivated to contain a high percentage of
cannabinoid Cannabinoids () are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tet ...
s. Several varieties of ''cannabis'', known as
hemp 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 o ...
, have a very low cannabinoid content, and are instead grown for their fiber and seed.


Major variety types


Taxonomic paradigm

The two species of the ''Cannabis'' genus that are most commonly grown are ''
Cannabis indica ''Cannabis indica'' is an annual plant species in the family Cannabaceae which produces large amounts of tetrahydrocannabinol (THC) and is cultivated for purposes including hashish in India. The high concentrations of THC provide euphoric effec ...
'' and ''
Cannabis sativa ''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 fibe ...
''. A third species, ''
Cannabis ruderalis ''Cannabis ruderalis'' is a variety, subspecies, or species of ''Cannabis'' native to Central and Eastern Europe and Russia. It contains a relatively low quantity of psychoactive compound tetrahydrocannabinol (THC) Some scholars accept ''C.&nb ...
'', is very short and produces only trace amounts of
tetrahydrocannabinol 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' ...
(THC), and thus is not commonly grown for industrial, recreational or medicinal use. However, because ''Cannabis ruderalis'' flowers independently of the photoperiod and according to age, it has been used to breed autoflowering strains. Pure ''sativas'' are relatively tall (reaching as high as 4.5 meters), with long
internodes A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, stores nutrien ...
and branches, and large, narrow-bladed leaves. Pure ''indica'' varieties are shorter and bushier, with wider leaflets. They are often favored by indoor growers for their size. ''Sativas'' bloom later than ''indicas'', often taking a month or two longer to mature. The subjective effects of ''sativas'' and ''indicas'' are said to differ, but the ratio of
tetrahydrocannabinol 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' ...
(THC) to cannabidiol (CBD) in most named drug varieties of both types is similar (averaging about 200:1). Unlike most commercially developed strains, ''indica''
landrace A landrace is a domesticated, locally adapted, often traditional variety of a species of animal or plant that has developed over time, through adaptation to its natural and cultural environment of agriculture and pastoralism, and due to isolatio ...
s exhibit plants with varying THC/CBD ratios. Avidekel, a medical marijuana strain developed in Israel, has a very low content of THC but a high content of CBD, limiting its psychoactive potential while exploring the beneficial medical effects of the latter. The informal designation ''sativa'' and ''indica'' may have various, controversial meanings. Morphologically, the name ''sativa'' designates tall plants with narrow leaves, while ''indica'' refers to short plants with wide leaves. Among the marijuana community however, ''sativa'' rather refers to equatorial varieties producing stimulating psychoactive effects , whereas ''indica''-type plants from Central Asia are used for relaxing and sedative drugs (THC:CBD > 1). File:Cannabis_indica.jpg, ''
Cannabis indica ''Cannabis indica'' is an annual plant species in the family Cannabaceae which produces large amounts of tetrahydrocannabinol (THC) and is cultivated for purposes including hashish in India. The high concentrations of THC provide euphoric effec ...
'' File:Cannabis ruderalis habitus.jpg, ''
Cannabis ruderalis ''Cannabis ruderalis'' is a variety, subspecies, or species of ''Cannabis'' native to Central and Eastern Europe and Russia. It contains a relatively low quantity of psychoactive compound tetrahydrocannabinol (THC) Some scholars accept ''C.&nb ...
'' Image:Cannabis sativa 001.JPG, ''
Cannabis sativa ''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 fibe ...
'' File:Cannab2 new.png, Relative size of ''cannabis'' types


Alternative classifications

There is an increasing discussion about whether the differences between species adequately represents the variability found within the genus ''Cannabis''. There are five chemotaxonomic types of ''cannabis'': one with high levels of THC, one which is more fibrous and has higher levels of CBD, one that is an intermediate between the two, another one with high levels of
cannabigerol Cannabigerol (CBG) is one of more than 120 identified cannabinoid compounds found in the plant genus ''Cannabis''. Cannabigerol is the decarboxylated form of cannabigerolic acid, the parent molecule from which other cannabinoids are synthesized ...
(CBG), and the last one almost without cannabinoids. There has also been a recent movement to characterize strains based on their reported subjective effects. For example, WoahStork has used machine learning algorithms to classify strains into six Distinct Activity groups.


Breeding

In addition to pure ''indica'', ''sativa'', and ''ruderalis'' varieties, hybrid varieties with varying ratios of these three types are common, such as the White Widow hybrid which has about 60% ''indica'' and 40% ''sativa'' ancestry. These hybrid varieties exhibit traits from both parental types. There are also commercial
crossbred A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations. ''Crossbreeding'', sometimes called "designer crossbreeding", is the process of breeding such an organism, While crossbreeding is used to main ...
hybrids which contain a mix of both ruderalis, indica or sativa genes, and are usually autoflowering varieties. These varieties are bred mostly for the medicinal ''cannabis'' market, since they are not very appreciated by recreational ''cannabis'' users because ''ruderalis'' varieties are lower in THC and impart a slightly unpleasant taste. "Lowryder" was an early auto-flowering hybrid that retained the flowering behavior of ''ruderalis'' plants, while also producing appreciable amounts of THC and CBD. Autoflowering ''cannabis'' varieties have the advantage of being discreet due to their small stature. They also require shorter growing periods, as well as having the additional advantage that they do not rely on a change in the photoperiod to determine when to flower. Breeding requires pollinating a female ''cannabis'' plant with male pollen. Although this occurs spontaneously and ubiquitously in nature, the intentional creation of new varieties typically involves selective breeding in a controlled environment. When ''cannabis'' is cultivated for its psychoactive or medicinal properties, male plants will often be separated from females. This prevents fertilization of the female plants, either to facilitate '' sin semilla'' flowering or to provide more control over which male is chosen. Pollen produced by the male is caught and stored until it is needed. When a male plant of one strain pollinates a female of another strain, the seeds will be
F1 hybrid An F1 hybrid (also known as filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where the term F1 crossbreed may be used. The term is some ...
s of the male and female. These offspring will not be identical to their parents. Instead, they will have characteristics of both parents. Repeated breeding results in certain characteristics appearing with greater regularity. It is impossible for a hermaphrodite to create any male-only seeds. A hermaphrodite may create female only seeds and hermaphrodite seeds. Also the female-only seeds may carry the hermaphrodite trait. Hybridization is the process of plants and animals breeding. Natural wind currents help speed up this hybridization process and promotes a positive growth. Some plants produce many seeds while some produce little to none depending on how it is bred. If seeds are produced traits from both the original parents will be expressed. Techniques such as
mutation breeding Mutation breeding, sometimes referred to as "variation breeding", is the process of exposing seeds to chemicals, radiation, or enzymes in order to generate mutants with desirable traits to be bred with other cultivars. Plants created using mutagene ...
are used to develop new strains using
irradiation Irradiation is the process by which an object is exposed to radiation. The exposure can originate from various sources, including natural sources. Most frequently the term refers to ionizing radiation, and to a level of radiation that will serve ...
or chemical mutagens such as
colchicine Colchicine is a medication used to treat gout and Behçet's disease. In gout, it is less preferred to NSAIDs or steroids. Other uses for colchicine include the management of pericarditis and familial Mediterranean fever. Colchicine is taken ...
. Various companies have been experimenting with creating new strains using
genetic engineering Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including t ...
techniques.


THC vis-à-vis CBD

During the selective breeding process for medical marijuana, THC:CBD ratios are accounted for and accommodated to the needs of the client's preference/illness. Due to the large genetic diversity and different geographical climates and environments, a wide range of strains and properties exist. THC is associated with the psychoactive ''high'', while CBD is not psychoactive and is purported to have medicinal properties. There is little evidence about the safety or efficacy of cannabinoids in the treatment of epilepsy.


Genetic stability

In order for there to be genetic stability within a marijuana strain the breeder has to go through selection and breeding, pinpointing the dominant and recessive genes within the two strains being crossed. After analyzing offspring with the preferred traits a breeder is looking for, the breeder will select the preferred traits and continue to breed those offspring to create the desired final product. Selection is a crucial process for a breeder to create a strain, especially if a client is looking for something with specific plant traits the breeder has to ensure that the hybrid's genetic traits have been closed in enough so unwanted traits aren't expressed in future harvests.


Varieties

In a retail market that is decriminalized such as in
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, where wholesale production is illegal but prosecutions are not always enforced because of the contradiction of the law that is recognised by the courts, competition puts pressure on breeders to create increasingly attractive varieties to maintain market share. Breeders give their strains distinct and memorable names in order to help differentiate them from their competitors' strains, although they may in fact be very similar.


Acapulco Gold

Acapulco Gold Acapulco Gold is a strain of ''Cannabis sativa'' that was popular during the 1960s counterculture movement for its potency and unique color. History First recorded in the United States in 1964, Acapulco Gold was defined by the ''Oxford English ...
is a golden-leafed ''
Cannabis sativa ''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 fibe ...
'' strain originally from the
Acapulco Acapulco de Juárez (), commonly called Acapulco ( , also , nah, Acapolco), is a city and major seaport in the state of Guerrero on the Pacific Coast of Mexico, south of Mexico City. Acapulco is located on a deep, semicircular bay and has bee ...
area of southwest
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
.


Bedrocan

Bedrocan is a medicinal ''cannabis'' variety cultivated from a
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...
medical marijuana 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 ...
''Cannabis sativa'' L. strain, having a standardized content of THC (22%) and CBD (1%). It is currently cultivated by Bedrocan Nederland, Bedrocan Canada and Bedrocan Česká Republika. It was introduced in 2003 and is dispensed through pharmacies after prescription from a physician.


Blue Dream

Blue Dream is a hybrid cannabis strain widely used for both medical and recreational purposes, developed in 2003.


Charlotte's Web

Charlotte's Web is a high-
cannabidiol 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. , clinical research on CBD incl ...
(CBD), low-
tetrahydrocannabinol 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' ...
(THC) ''cannabis'' variety and extract marketed as a
dietary supplement A dietary supplement is a manufactured product intended to supplement one's diet by taking a pill, capsule, tablet, powder, or liquid. A supplement can provide nutrients either extracted from food sources or that are synthetic in order ...
under federal law of the United States. It is produced by the Stanley brothers in Colorado. It does not induce the
psychoactive A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. Th ...
"
high High may refer to: Science and technology * Height * High (atmospheric), a high-pressure area * High (computability), a quality of a Turing degree, in computability theory * High (tectonics), in geology an area where relative tectonic uplift ...
" typically associated with recreational marijuana strains that are high in THC. In September 2014, the Stanleys announced that they would ensure that the product consistently contained less than 0.3% THC. Charlotte's Web gained national attention when it was used to treat
Charlotte Figi Charlotte Figi (October 18, 2006 – April 7, 2020) was an American girl with Dravet syndrome, who took cannabidiol (CBD) oil to prevent seizures, and inspired the name of the medical cannabis strain Charlotte's Web. Life Figi was born on Oc ...
's
epileptic seizure An epileptic seizure, informally known as a seizure, is a period of symptoms due to abnormally excessive or synchronous neuronal activity in the brain. Outward effects vary from uncontrolled shaking movements involving much of the body with los ...
s.
Se
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Her story has led to her being described as "the girl who is changing medical marijuana laws across America," as well as the "most famous example of medicinal hemp use".


Skunk

Skunk refers to ''cannabis'' strains that are strong-smelling and have been likened to the smell of the spray from a
skunk Skunks are mammals in the family Mephitidae. They are known for their ability to spray a liquid with a strong, unpleasant scent from their anal glands. Different species of skunk vary in appearance from black-and-white to brown, cream or ginge ...
. These strains of ''cannabis'' are believed to have originated during the early 1990s in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
prior to larger-scale development and popularization by
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...
growers. Just as with other strains of ''cannabis'', skunk is commonly grown in controlled indoor environments under specialized
grow light A grow light is an electric light to help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varyi ...
s, or in a
greenhouse A greenhouse (also called a glasshouse, or, if with sufficient heating, a hothouse) is a structure with walls and roof made chiefly of Transparent ceramics, transparent material, such as glass, in which plants requiring regulated climatic condit ...
when full outdoor conditions are not suitable; skunk strains are hybrids of ''Cannabis sativa'' and ''Cannabis indica''.


Sour Diesel

Sour Diesel Sour Diesel is a hybrid strain of ''Cannabis sativa'' In popular culture Sour Diesel has appeared in works by Ryan David Jahn and Toby Rogers. The strain gave its name to two rap albums by Doap Nixon, as well as a single by Dame Grease. The Fl ...
is a hybrid strain of Cannabis sativa and Cannabis indica.


See also

*
Autoflowering cannabis Autoflowering cannabis or day neutral cannabis varieties automatically switch from vegetative growth to the flowering stage based on age, as opposed to the ratio of light to dark hours required with photoperiod dependent/short-day strains. Ma ...


References


External links

* {{Cannabis strains Cannabis-related lists