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Cannabis ruderalis has naturally low concentrations of THC. With hybrid breeding, autoflowering plants can contain levels of THC similar to the strain they're bred with. [13][2][14] Breeders have reported THC content around 25% in some newer varieties while many varieties also have high CBD content. [15][16] Some advantages of autoflower plants ...
Rudyard Kipling wrote, "The fire-weed glows in the centre of the drive ways". [28] In The Fellowship of the Ring, J. R. R. Tolkien lists fireweed as one of the flowering plants returning to the site of a bonfire inside the Old Forest. [29] As the first plant to colonise waste ground, fireweed is often mentioned in postwar British literature.
Watering frequency and amount is determined by many factors, including temperature and light, the age, size and stage of growth [22] of the plant and the medium's ability to retain water. A conspicuous sign of water problems is the wilting of leaves. [23] Giving too much water can kill cannabis plants if the growing medium gets over-saturated.
Seed dispersal. Appearance. In spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. [ 1 ] Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living (biotic) vectors such as birds.
In favourable conditions, adult plants will produce an offshoot every 3–4 cm (1 + 1 ⁄ 8 – 1 + 5 ⁄ 8 in), [14] resulting in new plants as the tips continue to grow and the old ends die off and separate. Due to the rapid growth rate of this species, countless new plants can be produced in a short period of time in this fashion.
Phytoextraction is a subprocess of phytoremediation in which plants remove dangerous elements or compounds from soil or water, most usually heavy metals, metals that have a high density and may be toxic to organisms even at relatively low concentrations. [ 1 ] The heavy metals that plants extract are toxic to the plants as well, and the plants ...
pl. adelphiae A bundle or structure of stamens forming one unit in an adelphous flower; for example, the stamen tube around the pistil of Hibiscus. adelphous Having organs, particularly filament s such as stamen s, connected into one or more adelphiae, whether in the form of bunches or tubes, such as is commonly seen in families such as Malvaceae. Usage of the term is not consistent; some ...
Passive sub-irrigation, also known as passive hydroponics, semi-hydroponics, or hydroculture, [52] is a method wherein plants are grown in an inert porous medium that moves water and fertilizer to the roots by capillary action from a separate reservoir as necessary, reducing labor and providing a constant supply of water to the roots. In the ...
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