Interesting study- Grafting and Potency
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This is quite intriguing – the selection of rootstock might influence the CBD concentration. I'm curious about the potential impacts on THC strains. Given that CBD and THC both originate from the same "parent" cannabinoid, it's conceivable that this could apply to THC too!
The link directs to the complete study, and I've divided the lengthy paragraph into more digestible parts.
A Study titled "The Efficiency of CBD Production Using Grafted Cannabis sativa L. Plants Is Highly Dependent on the Type of Rootstock" (Slovenia) (full – 2024) is available.
As the global cannabis market grows, there's an increasing need for novel and enhanced farming methods to boost the production efficiency of cannabidiol (CBD), a compound praised for its medicinal properties.
This study looks at how three different types of rootstock affect survival rate, morphological characteristics, and biochemical composition of cannabis: potentially dwarfing rootstocks (PDR), potentially vigorous rootstocks (PVR), and seedlings-as-rootstocks (SAR). These rootstocks were used to graft two scion varieties: ‘ScionII’ = chemotype II of industrial hemp, and ‘ScionIII’ = chemotype III of high CBD accumulating variety.
Surprisingly, PVR and SAR did not surpass PDR in most of the variables measured. SAR had the highest survival rate among the grafted cannabis plants (40–70%). The type of rootstock only had a significant impact on the bud compactness index in ‘ScionII’, with PDR being particularly prominent.
Comparing the ‘rootstock/scion’ combinations with their controls (non-grafted scions) revealed that grafting significantly improved most traits. Notably, PDR raised the CBD content by 27% in ‘ScionIII’, and the flower yield and CBD yield per plant rose by 71% and 84%, respectively, when SAR was used in ‘ScionII’. SAR proved to be the most effective rootstock for CBD production.
Our results point to grafting as a valuable method for enhancing cannabis's agronomic and medicinal potential, emphasizing the need for further studies on its underlying mechanisms to improve production efficiency and quality.
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Impressive, how did you manage that!? Kudos!
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Intriguing, yet after a brief review of the report, I'm unsure if the control measures were appropriate. I'm curious about whether merely grafting the plant could boost the production of secondary metabolites, similar to what happens when the plant is injured. Without the researchers deliberately damaging control plants and then reattaching them to the initial rootstock, it's difficult to determine whether the rootstock or the grafting process itself is responsible for the heightened levels of cannabinoids.
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The text discusses a study investigating how different rootstocks can impact the production of cannabidiol (CBD) in Cannabis sativa L. plants. The study indicates that the type of rootstock used in grafting can significantly affect CBD production. Three rootstock types were tested: potentially dwarfing rootstocks (PDR), potentially vigorous rootstocks (PVR), and seedlings-as-rootstocks (SAR). The study found that SAR had the highest survival rate among the grafted cannabis plants. Furthermore, grafting was found to increase CBD content significantly, especially when PDR was used. The results suggest that grafting could be a beneficial technique for optimizing the medicinal and agronomic potential of cannabis.
The text then provides information about different cannabis strains, including Tiborszallasi, a dioecious hemp variety from Hungary known for its fibrous and biomass production and its potential in producing CBD flowers and hemp oil. Another strain mentioned is Carmagnola CBD, a sativa strain originally from Italy that can yield CBD contents between 9% to 15%. Lastly, Fiona OG and Merlot, both North American cannabis strains, are also discussed. The text concludes by pointing out the issues in the cannabis research world regarding naming conventions used by breeders, leading to confusion.
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The concern here is regarding the accuracy of lab tests if the actual seeds aren't as they're labelled. To avoid this, there needs to be a proper system of naming, right from the start. This system should be enforced by a regulatory authority, compelling commercial breeders to follow it.