In this book, overall plant and soil system are examined exclusively in terms of gold nanoparticles (Au-NPs) exposure. Au-NPs influence plant growth and yield performance. They also affect plant and soil system interactions. Au-NPs responses are primarily depends on the concentration, plant species or cultivars, exposure time, shape and size of NPs. Investigation have shown that the lower concentrations of Au-NPs increase seed germination, beneficial biochemical components, rate of photosynthesis, and overall growth, however, at higher concentrations, all these responses are declined in...