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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. Many autoflowering varieties are ready to harvest in less than 10 weeks from seed.
To induce flowering, the plant must be subject to at least 8 hours of darkness per day; this number is very strain-specific and most growers use 12 hours of darkness. Flowers from certain plants (e.g. cannabis) are called bract/bracteole, and are (with cannabis) the most prized part of the plant.
All known strains of Cannabis are wind-pollinated [16] and the fruit is an achene. [17] Most strains of Cannabis are short day plants, [16] with the possible exception of C. sativa subsp. sativa var. spontanea (= C. ruderalis), which is commonly described as "auto-flowering" and may be day-neutral.
These strains of cannabis are believed to have originated during the early 1980s in the United States prior to larger-scale development and popularization by Dutch growers. [45] Just as with other strains of cannabis, skunk is commonly grown in controlled indoor environments under specialized grow lights, or in a greenhouse when full outdoor ...
A Cannabis plant in the vegetative growth phase of its life requires more than 16–18 hours of light per day to stay vegetative. Flowering usually occurs when darkness equals at least 12 hours per day. The flowering cycle can last anywhere between seven and fifteen weeks, depending on the strain and environmental conditions.
The strain gave its name to two rap alb ums by Doap Nixon, [3] as well as a single by Dame Grease. [4] The Flatbush Zombies single "Face-Off", a rap song about recreational drug use, also mentions Sour Diesel at the start of its second verse: "Perfect day, 10 bitches, and some sour diesel." [5] It is a favorite strain of rapper Wiz Khalifa. [6]
[19] [20] Cannabis x intersita Sojak, a strain identified in 1960, is a cross between C. sativa and C. ruderalis. [3] Attempts to produce a Cannabis strain with a shorter growing season are another application of cultivating C. ruderalis. [8] C. ruderalis when crossed with sativa and indica strains will carry the recessive autoflowering trait ...
In 2018, surveys indicated that almost half of the people in the United States had tried marijuana, 16% had used it in the past year, and 11% had used it in the past month. [45] In 2014, surveys said daily marijuana use amongst US college students had reached its highest level since records began in 1980, rising from 3.5% in 2007 to 5.9% in ...