The Science of Mycorrhizae: Enhancing Cannabis Root Health

Photo The Science of Mycorrhizae: Enhancing Cannabis Root Health

Mycorrhizae are a type of beneficial fungi that form a symbiotic relationship with the roots of plants, including cannabis. This relationship is mutually beneficial, as the mycorrhizae provide the plant with increased access to nutrients and water, while the plant provides the mycorrhizae with carbohydrates. This symbiosis has been shown to greatly enhance the health and vitality of cannabis plants, leading to improved growth and yield.

The Role of Mycorrhizae in Enhancing Cannabis Root Health

When mycorrhizae colonize the roots of cannabis plants, they form a network of hyphae that extend into the surrounding soil. This network acts as an extension of the plant’s root system, greatly increasing its surface area and ability to absorb nutrients and water. The mycorrhizae also produce enzymes that break down organic matter in the soil, making nutrients more readily available to the plant.

In addition to improving nutrient uptake, mycorrhizae also enhance root structure and function. They can help increase root branching and density, which allows for better nutrient absorption and anchorage in the soil. Mycorrhizae also produce a sticky substance called glomalin, which helps bind soil particles together and improve soil structure. This can prevent soil erosion and improve water retention, further benefiting the health of cannabis roots.

Types of Mycorrhizae and Their Benefits to Cannabis Plants

There are two main types of mycorrhizae that form symbiotic relationships with cannabis plants: arbuscular mycorrhizae (AM) and ectomycorrhizae (ECM). AM fungi are the most common type found in cannabis cultivation and form a mutualistic relationship with over 80% of plant species. They penetrate the root cells of cannabis plants, forming arbuscules that exchange nutrients with the plant. ECM fungi, on the other hand, form a sheath around the roots of cannabis plants and do not penetrate the root cells.

Both types of mycorrhizae provide numerous benefits to cannabis plants. They can improve nutrient uptake, particularly for phosphorus, which is often limited in soil. Mycorrhizae can also enhance the plant’s ability to absorb water, making it more resistant to drought conditions. Additionally, mycorrhizae can help protect cannabis plants from pathogens and pests by stimulating the plant’s immune response.

Different strains of cannabis may benefit from different types of mycorrhizae. Some strains may have a natural affinity for certain types of mycorrhizae, while others may benefit from a combination of both AM and ECM fungi. It is important for growers to experiment and find the best mycorrhizal inoculant for their specific strain and growing conditions.

How Mycorrhizae Help Cannabis Plants Absorb Nutrients and Water

Mycorrhizae play a crucial role in improving nutrient and water absorption in cannabis plants. The hyphae of mycorrhizae extend into the soil, greatly increasing the surface area available for nutrient uptake. This allows the plant to access nutrients that may be otherwise unavailable or difficult to reach.

One of the key nutrients that mycorrhizae help cannabis plants absorb is phosphorus. Phosphorus is an essential nutrient for plant growth, but it is often present in soil in forms that are not readily available to plants. Mycorrhizae produce enzymes that break down organic matter in the soil, releasing phosphorus and making it more accessible to the plant.

Mycorrhizae also improve water absorption in cannabis plants. The hyphae of mycorrhizae act like tiny straws, drawing water from the surrounding soil and delivering it directly to the roots of the plant. This can be particularly beneficial in dry or drought conditions, as mycorrhizae can help cannabis plants survive and thrive with less water.

Mycorrhizae and Their Effect on Cannabis Plant Growth and Yield

Numerous studies have shown that mycorrhizae can greatly improve cannabis plant growth and yield. Research has demonstrated that cannabis plants inoculated with mycorrhizae have larger root systems, increased biomass, and higher levels of chlorophyll compared to non-inoculated plants.

Mycorrhizae have also been shown to enhance the overall health and vigor of cannabis plants. They can help plants resist stress, such as drought or nutrient deficiencies, by improving nutrient and water uptake. Mycorrhizae can also help protect cannabis plants from diseases and pests by stimulating the plant’s immune response.

In terms of yield, mycorrhizae have been shown to increase the number and size of flowers in cannabis plants. This can lead to higher yields and improved quality of the final product. Additionally, mycorrhizae can enhance the production of secondary metabolites in cannabis plants, such as cannabinoids and terpenes, which contribute to the plant’s medicinal properties.

How to Identify Mycorrhizae in Cannabis Plants

Identifying mycorrhizae in cannabis plants can be challenging, as they are microscopic fungi that live within the roots. However, there are a few signs that growers can look for to determine if their plants are benefiting from mycorrhizal colonization.

One way to identify mycorrhizae is by examining the roots of cannabis plants. Mycorrhizal colonization can be observed under a microscope or with the naked eye using staining techniques. The presence of hyphae or arbuscules within the root cells is a clear indication of mycorrhizal colonization.

Another way to identify mycorrhizae is by observing the overall health and growth of cannabis plants. If plants are exhibiting vigorous growth, have a healthy root system, and are resistant to stress and disease, it is likely that they are benefiting from mycorrhizal colonization.

It is important for growers to identify mycorrhizae in their cannabis plants in order to optimize their benefits. If mycorrhizae are not present or are present in low levels, growers may consider inoculating their plants with a mycorrhizal inoculant to enhance root health and overall plant performance.

The Importance of Mycorrhizae in Organic Cannabis Cultivation

Mycorrhizae can be an important component of organic cannabis cultivation. They can help reduce the need for synthetic fertilizers and pesticides, as they improve nutrient uptake and enhance the plant’s immune response.

In organic cultivation, it is important to build healthy soil that is rich in organic matter and beneficial microorganisms. Mycorrhizae play a crucial role in this process, as they break down organic matter and make nutrients more available to plants. They also help improve soil structure, preventing erosion and improving water retention.

By incorporating mycorrhizae into their growing practices, organic cannabis growers can enhance the health and vitality of their plants while reducing their reliance on synthetic inputs. This can lead to a more sustainable and environmentally friendly approach to cannabis cultivation.

Methods for Incorporating Mycorrhizae into Cannabis Growing Mediums

There are several methods for incorporating mycorrhizae into cannabis growing mediums. One common method is to mix a mycorrhizal inoculant into the soil or growing medium before planting the cannabis seeds or clones. This ensures that the mycorrhizae are in close proximity to the roots of the plants and can establish a symbiotic relationship early on.

Another method is to apply a mycorrhizal inoculant as a root drench or foliar spray. This can be done throughout the growing cycle to ensure that the mycorrhizae are continuously present and active in the root zone.

Some growers also use mycorrhizal inoculants in combination with compost teas or other organic fertilizers. This can help create a diverse and balanced soil ecosystem that promotes the growth of beneficial microorganisms, including mycorrhizae.

It is important for growers to carefully follow the instructions provided by the manufacturer when using mycorrhizal inoculants. Different products may have different application rates and methods, so it is important to read and understand the label before use.

Common Misconceptions About Mycorrhizae and Cannabis Cultivation

There are several common misconceptions about mycorrhizae and their role in cannabis cultivation. One misconception is that all cannabis plants benefit from mycorrhizal colonization. While mycorrhizae can be beneficial for most cannabis plants, there may be some strains or growing conditions where they are not necessary or beneficial. It is important for growers to experiment and determine if their specific strain and growing conditions can benefit from mycorrhizal inoculation.

Another misconception is that mycorrhizae can replace the need for proper soil preparation and nutrient management. While mycorrhizae can greatly enhance nutrient uptake, they are not a substitute for providing a balanced and fertile growing medium. It is still important for growers to properly prepare their soil or growing medium and provide adequate nutrients for their cannabis plants.

A third misconception is that mycorrhizae are harmful or detrimental to cannabis plants. Some growers may be concerned that mycorrhizae could become parasitic or cause harm to their plants. However, research has shown that mycorrhizae form mutualistic relationships with plants and provide numerous benefits without causing harm.

Future Research and Development in Mycorrhizae for Cannabis Cultivation

There is ongoing research and development in the field of mycorrhizae for cannabis cultivation. Scientists are exploring different strains of mycorrhizae and their specific benefits to different strains of cannabis. They are also studying the effects of different growing conditions, such as soil type and nutrient management, on mycorrhizal colonization and plant performance.

Future developments in mycorrhizae for cannabis cultivation may include the development of new mycorrhizal inoculants that are specifically tailored to the needs of cannabis plants. Researchers may also explore the use of mycorrhizae in hydroponic or aeroponic systems, where traditional soil-based inoculants may not be suitable.
Mycorrhizae play a crucial role in enhancing the health and vitality of cannabis plants. They form a symbiotic relationship with the roots of cannabis plants, improving nutrient and water absorption, enhancing root structure and function, and promoting overall plant growth and yield. Mycorrhizae can be an important component of organic cannabis cultivation, reducing the need for synthetic inputs and promoting a more sustainable approach to cultivation. By incorporating mycorrhizae into their growing practices, cannabis growers can optimize the health and performance of their plants, leading to improved quality and yield. It is important for growers to experiment and find the best mycorrhizal inoculant for their specific strain and growing conditions, as different types of mycorrhizae may benefit different strains of cannabis.

If you’re interested in enhancing the root health of your cannabis plants, you may also want to check out this informative article on the benefits of using a grow light strip for indoor plants. A grow light strip can provide good support for your plants by supplementing the light they receive, especially in indoor environments where natural sunlight may be limited. To learn more about how different colors of light can affect plant growth, you can also read this fascinating article that explores the impact of light color on plants.


What are mycorrhizae?

Mycorrhizae are a type of fungi that form a symbiotic relationship with the roots of plants. They help the plant absorb nutrients and water from the soil, and in return, the plant provides the fungi with carbohydrates.

How do mycorrhizae enhance cannabis root health?

Mycorrhizae can increase the surface area of the roots, allowing the plant to absorb more nutrients and water. They can also help protect the roots from pathogens and improve soil structure.

Are mycorrhizae safe for cannabis plants?

Yes, mycorrhizae are safe for cannabis plants and are commonly used in organic cultivation practices.

How do I apply mycorrhizae to my cannabis plants?

Mycorrhizae can be applied as a soil amendment or as a root drench. Follow the instructions on the product label for best results.

Can mycorrhizae be used in hydroponic systems?

Mycorrhizae are not typically used in hydroponic systems, as they require a soil environment to thrive. However, there are some products available that are specifically designed for use in hydroponic systems.

What are the benefits of using mycorrhizae in cannabis cultivation?

Using mycorrhizae can improve nutrient uptake, increase plant growth and yield, and improve the overall health of the plant. It can also reduce the need for synthetic fertilizers and pesticides.

About the Author

Big Hippo Cannabis Seeds

Big Hippo supply top of the range cannabis seeds in the UK, including grow equipment, and CBD products - we also provide cannabis-related articles and information on our website at Big Hippo.

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