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[5] [additional citation(s) needed] It is typically a dioecious (each individual is either male or female) annual plant. [6] [7] [8] C. sativa and C. indica generally grow tall, with some varieties reaching 4 metres or 13 feet. Female plants produce tetrahydrocannabinol (THC) (up to 31% by weight) as the season changes from summer to autumn.
Cannabaceae are often dioecious (distinct male and female plants). The flowers are actinomorphic (radially symmetrical) and not showy, as these plants are pollinated by the wind. As an adaptation to this kind of pollination, the calyx and corolla are radically reduced to only vestigial remnants found as an adherent perianth coating the seed. A ...
The leaf angle distribution (or LAD) of a plant canopy refers to the mathematical description of the angular orientation of the leaves in the vegetation. Specifically, if each leaf is conceptually represented by a small flat plate, its orientation can be described with the zenith and the azimuth angles of the surface normal to that plate.
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The flowers of Cannabis sativa plants are most often either male or female, but, only plants displaying female pistils can be or turn hermaphrodite. Males can never become hermaphrodites. [3] It is a short-day flowering plant, with staminate (male) plants usually taller and less robust than pistillate (female or male) plants.
Cannabis is predominantly dioecious, [16] [18] having imperfect flowers, with staminate "male" and pistillate "female" flowers occurring on separate plants. [19] " At a very early period the Chinese recognized the Cannabis plant as dioecious", [ 20 ] and the (c. 3rd century BCE) Erya dictionary defined xi 枲 "male Cannabis " and fu 莩 (or ju ...
Sinsemilla cannabis is a cultivation technique, so it should not be confused with skunk, which refers to strains with a high percentage of THC, of up to 34% THC content. [6] The expression sinsemilla is practically obsolete since feminized seeds emerged in the 1990s, seeds genetically modified to only sprout females.
C. indica strains are frequently cross-bred with C. ruderalis to produce autoflowering plants with high THC content, improved hardiness and reduced height. [ 19 ] [ 20 ] Cannabis x intersita Sojak, a strain identified in 1960, is a cross between C. sativa and C. ruderalis . [ 3 ]