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Cannabis sativa is an annual herbaceous flowering ... A Cannabis plant in the vegetative growth phase of its life requires more than 16–18 hours of light per day to ...
Fertilizer burn on a leaf. Outdoor cultivation is common in both rural and urban areas. Outdoor cultivators tend to grow indica-based strains because of its heavy yields, quick maturing time, and short stature. Some growers prefer sativa because of its clear-headed high [citation needed], better response to sunlight, and lower odor emissions.
Growth rings of Castanea sativa . The sweet chestnut (Castanea sativa), also known as the Spanish chestnut or just chestnut, is a species of tree in the family Fagaceae, native to Southern Europe and Asia Minor, and widely cultivated throughout the temperate world.
Bark of C. sativa (sweet chestnut). Chestnut trees are of moderate growth rate (for the Chinese chestnut tree) to fast-growing for American and European species. [4] Their mature heights vary from the smallest species of chinkapins, often shrubby, [5] to the giant of past American forests, C. dentata that could reach 60 metres (200 feet).
Cannabis (/ ˈ k æ n ə b ɪ s /) [2] is a genus of flowering plants in the family Cannabaceae.The number of species within the genus is disputed. Three species may be recognized: Cannabis sativa, C. indica, and C. ruderalis.
Ion balance is a key factor in plant development to produce yield. Too high salt concentration in soil lowers the water potential in root tissue which becomes toxic; stunting growth and inhibiting flowering by dehydrating the plant. Stomatal closure is also a response to high salinity, leading to lowered sugar production and transpiration rates ...
3. Medications. Some medications have been associated with temporary hair loss. Most of the time hair loss related to medication is due to the drug disrupting the hair growth cycle leading to a ...
The second component is the 'Unit Leaf Rate' (ULR), which is also termed 'Net Assimilation Rate' (NAR). This variable indicates the rate of biomass increase per unit leaf area, with typical values ranging from 5-15 g.m −2.day −1 for herbaceous species and 1-5 g.m −2.day −1 for woody seedlings. Although the ULR is not equal to the rate ...