Suitability of colloidal Nano Gold for application in performing allelopathic screening studies in laboratory conditions
Plamen Marinov-Serafimov
Abstract: Nanomaterials are widely used in medicine and industry, while in agriculture their application is relatively limited, but they have the potential to be included in screening studies to establish allelopathic interference in plant communities. Therefore, a key element is to establish the suitability of nanomaterials for introduction when performing screening allelopathic studies in a laboratory setting. In this aspect, the impact of eleven concentrations colloidal Nano Gold Gold-Rubin with nanoparticles 20 ppm on seed germination and initial development of Lactuca sativa L. variety Great Lakes and Medicago sativa L. variety Pleven 6 under laboratory conditions. It was found that applied higher concentrations (from 5.0 to 20.0 ppm) of colloidal Nano Gold in L. sativa and M. sativa, had an indifferent effect on the global germination index (GI) of the test plants, allowing concentrations of 20.0 ppm, to be used in performing allelopathic studies under laboratory conditions with both crops. However, a disproportionate influence on the biometric indicators of the test plants included in the study was found with increasing Gold-Rubin concentrations applied, suggesting the need for further research related to combined application with aqueous extracts or hydrolates of plants with proven allelopathic potential, including validation in vessel trials and greenhouse conditions.
Keywords: allelopathy; biotest; inhibition; nano solutions; nanoparticles
Citation: Marinov-Serafimov, P. (2025). Suitability of colloidal Nano Gold for application in performing allelopathic screening studies in laboratory conditions. Bulg. J. Agric. Sci., 31(4), 759–771.
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