Effect of Phyto-mediated Silver Nanoparticles of Walsura trifoliata (A. Juss) Harms on Seed germination and Seedling growth

Abstract

The present study highlights the eco-friendly production of silver nanoparticles (AgNPs) using leaf extract as a promising alternative to conventional chemical and physical synthesis methods. Specifically, we synthesized AgNPs using an aqueous extract from the medicinal tree Walsura trifoliata and evaluated their effect and seedling growth. The green-synthesized AgNPs were characterized by UV–Vis spectroscopy and transmission electron microscopy (TEM). A characteristic absorption band confirmed the formation of AgNPs at 434 nm in the UV–Vis spectra. TEM analysis revealed that the nanoparticles were predominantly spherical, with sizes ranging from 25.81 to 29.43 nm and an average diameter of 27.65 nm. Application of these AgNPs resulted in a positive impact, notably enhancing all experimental growth parameters on seeds of Ground nut. The results indicate that the green synthesized AgNPs may be used to remove the seed dormancy and enhance the vigour of agricultural crops.