The dangers of PGR "CALI" in indoor cultivation
Table of contents
Introduction
Plant growth regulators (PGR) are chemical substances used in agriculture to improve crop yields. However, their use in cannabis cultivation raises many concerns. Contrary to popular belief, the term "CALI" does not refer to a specific cannabis strain, but rather strains grown in California. However, with the rise of the cannabis market, some strains from Canada or Nevada are also called "CALI", although many of them are grown with PGR. This phenomenon raises questions about the authenticity and quality of the products offered to consumers.
What is PGR and why is it used?
PGR (Plant Growth Regulators) are used to accelerate plant growth and increase their yield. They allow growers to produce denser, more compact, and visually attractive buds. However, these regulators alter the natural structure of the plant, thus affecting the flavor, smell, and overall quality of the product. Unlike organic cultivation, where plants develop naturally, those treated with PGR have an abnormally hard texture, often darker color, and a generally less resinous appearance.
Growers mainly use PGR for economic reasons. Rather than using traditional nutrient and stimulants, some producers turn to plant growth regulators (PGR) to speed up crop development and increase bud mass. These substances help optimize crop profitability by increasing yields and improving the visual appearance of plants. However, this economic advantage comes with major health risks for consumers, as the accumulation of these compounds in crops can have harmful long-term health effects

Health risks related to PGR
One of the main dangers of PGR lies in its toxicity. Several studies have shown that some substances used in PGR are carcinogenic and can cause serious health problems. Inhaling cannabis treated with these chemicals exposes consumers to increased risks of respiratory disorders, lung irritations, and hormonal disruptions. Some PGR, such as paclobutrazol, daminozide, and chlormequat, are banned in several countries due to their harmful health impact.
Regular consumption of cannabis containing PGR can also damage the nervous system and cause undesirable side effects such as headaches, nausea, and an unusual feeling of heaviness. Unlike organic cannabis, which offers a smoother and more authentic experience, chemically treated cannabis can produce a harsher and more irritating smoke sensation.
How to identify plants grown with PGR?
To avoid buying cannabis treated with PGR, it is essential to learn how to recognize the distinctive signs. First of all, the appearance of the product is a key indicator. PGR buds are often abnormally dense, compact, and hard to the touch, which contrasts with natural buds that are more airy and resinous.
Smell is also a good indicator. If the cannabis has an artificial or muted odor, there is a strong chance it has been treated with PGR. Additionally, abnormal burning, with thicker smoke and a metallic or chemical taste, may indicate the presence of these harmful substances.
Legislation around PGR and their ban in California
In response to the dangers of PGR, several states and countries have taken strict measures to ban their use in cannabis cultivation. California, one of the largest cannabis production centers in the world, has banned these chemicals due to their negative impact on public health. This ban sends a strong message: if even California, where the cannabis industry is thriving, considers these substances dangerous, it is clear that their consumption poses a real danger.
Other countries like Canada and several U.S. states have also strengthened their regulations to guarantee the quality of legally sold cannabis. In Europe, awareness around this issue is rising, although the black market remains a major channel for distributing cannabis treated with PGR.
Conclusion
The use of PGR in cannabis cultivation is a major health issue for consumers. While these substances offer increased yields to producers, they harm the quality of the product and pose significant health risks. Consumer vigilance, strict regulation, and the promotion of organic cultivation are key elements to ensure purer and safer cannabis. By favoring natural and certified products, everyone can contribute to a healthier and more responsible cannabis industry.
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