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The test was initially developed in the 1930s by the French medical biochemist Pierre Duquénois (1904–1986) and was adopted in the 1950s by the United Nations as the preferred test for cannabis. The test was originally claimed to be specific to cannabis. After several modifications, it became known as the Duquenois–Levine test.
Climacteric fruit can be either monocots or dicots and the ripening of these fruits can still be achieved even if the fruit has been harvested at the end of their growth period (prior to ripening on the parent plant). [2] Non-climacteric fruits ripen without ethylene and respiration bursts, the ripening process is slower, and for the most part ...
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.
Climacteric fruits ripen after harvesting and so some fruits for market are picked green (e.g. bananas and tomatoes). Underripe fruits are also fibrous, not as juicy, and have tougher outer flesh than ripe fruits (see Mouth feel). Eating unripe fruit can lead to stomachache or stomach cramps, and ripeness affects the palatability of fruit.
Johnson said THC levels really started to take off after marijuana became legal for recreational use in Colorado in 2014. Since then, 24 states, two territories and Washington, D.C. have legalized ...
A growing number of states support the legalization of marijuana. Currently, recreational cannabis use is legal in 24 states , while medical use is legal in 38 states.
As cannabis legalization spreads across North America, researchers and policymakers are scrambling to solve the issue of road safety. ... looked at drivers over 65 — one of the fastest-growing ...
In the UK, so much cannabis is grown in illegal facilities that the UK is an exporter of cannabis. After cannabis as a drug was rescheduled as a Class B drug in 2008 (see below), more people started reporting on their suspicions of illegal operations and in 2009-2010 almost 7000 illegal facilities were found by police in one year. Vietnamese ...