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Cannabis grown is induced into flowering by decreasing its photoperiod to at least 10 hours of darkness per day. In order to initiate a flowering response, the number of hours of darkness must exceed a critical point. Generally the more hours of darkness each day, the shorter the overall flowering period but the lower the yield. Conversely, the ...
The Cannabis ruderalis heritage causes flowering after 2–3 weeks from germination [17] No need for a separate vegetative and flowering environment (unlike with photoperiod dependent/ short-day strains) Due to short life span can be grown in cold climates where summers are short and cold [18] Can produce multiple harvests outdoors in one ...
[3] [4] Photoperiodic flowering plants are classified as long-day plants or short-day plants even though night is the critical factor because of the initial misunderstanding about daylight being the controlling factor. Along with long-day plants and short-day plants, there are plants that fall into a "dual-day length category".
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.
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) and does not require photoperiod to blossom (unlike C. indica and C. sativa).
Much emphasis is placed on photoperiod when discussing plant development. However, it is the number of hours of darkness that affects a plant’s response to day length. [41] In general, a “short-day” is one in which the photoperiod is no more than 12 hours. A “long-day” is one in which the photoperiod is no less than 14 hours.
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Florigens (or flowering hormone) are proteins capable of inducing flowering time in angiosperms. [1] The prototypical florigen is encoded by the FT gene and its orthologs in Arabidopsis and other plants. [2] Florigens are produced in the leaves, and act in the shoot apical meristem of buds and growing tips. [3] [4]