Environmental Factors that Influence Cannabis Cultivation

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Update time : 2022-09-13 14:48:06
Environmental factors such as temperature, CO2, and light all influence the growth and development of the plant, and by controlling these factors, it becomes possible to steer production towards the desired outcome, within the limits of the genotype. Let’s take a look at those factors:


Every plant species has an optimum temperature range to grow and develop. To get the most out of your cannabis plants, it is important to keep the temperature at optimum levels during cultivation. Finding the right temperature for optimum development can be tricky as this can differ for each cultivar but generally speaking, the temperature should be between 22 to 26°C. However, plant growth and development are not dependent on just one factor. The optimum temperature for photosynthesis and development depends on the light intensity, as well as the CO2 concentration in the cultivation environment.

CO2 concentration

CO2 supplementation is the other factor to improve flower yield in cannabis cultivation. By supplying CO2 into a controlled environment, it is possible to increase photosynthetic activity by up to 50%. In general, CO2 levels between 400-800 ppm during the vegetative phase and 800-1000 ppm during the flowering stage are recommended. However, this must be accompanied by the high light intensity in order not to restrict photosynthetic activity, or else most of the supplemented CO2 is wasted.


Light intensity, quality, source, and photoperiod have great influence on cannabis productivity and quality. The net photosynthesis rate will increase with increased light intensity until the light saturation point is reached (when CO2 or temperature becomes the limiting factor). In commercial cannabis cultivation, it is quite common to cultivate under high light intensities of up to 1000 to 1500 µmol m2/s1. However, it is also important to keep a balance between light intensity, temperature, and CO2 concentration in the growth environment to ensure optimal growth is achieved.

Source: mmjdaily.com

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