Impact of GA3 encapsulated nanosilica on maize seed viability

Abstract

The nanoparticles have the potential ability of the passing cell membrane because of their nano sizes. The SiO₂ nanoparticles are one of the major and frequently used engineered oxide nanoparticles. In present investigation, the potential effect of SiO₂ (10-20 nm) nanoparticles on maize seed viability were studied. We observed quick result of seed viability and also increase the seed viability percentage in presence of GA₃ loaded silica nanoparticles. Three concentration of (0.5, 0.2 and 0.1%) tetrazolium salts were also used for staining of living tissue. In the present experiment seeds conditioned in 150 pp GA₃ encapsulated nanosilica and tested in 0.5% TZ salt gave maximum viable seeds which was due to the increased availability of GA₃ and showed quick staining over 0.2% and 0.1% concentration. Among the varieties, var. Navin imbibed in 150 ppm GA₃ loaded nanosilica showed higher value of viable seed under 0.5% tetrazolium solution by better availability of GA₃. Gibberellic acid enhances metabolic activity of seed by secretion of α-amylase enzyme which is important for quick staining of embryonic tissue.