Effect of Zinc Oxide Nanoparticles on Growth, Chemical Composition and Yield of Potato (Solanum tuberosum L.).

In this study ZnO NPs powder was used hence various analytical techniques, such as UV–Visible spectroscopy, such as Fourier transform infrared spectroscopy and UV-Visible spectroscopy. (FTIR), Transmission Electron Microscopy (TEM). TEM revealed both ZnO NPs small round nanoparticles and big rod nanoparticles. Zinc oxide nanoparticles' UV-vis absorbance spectrum, which ranges from 190 nm to 1100 nm. Field experiment was done in the Tag El-Ezz Experimental Research Station of the Agricultural Research Center in the Egyptian governorate of Dakahlia, during two successive seasons; 2019 and 2020 to assay the effect of foliar spraying with nanoparticles (NPs) of Zinc (0, 20, 40, 60, 80,100 and 200 mgL) and non-nanoparticles Zn in the form of ZnEDTA at 200 mgL with a randomized complete block design on the growth, chemical composition and yield of potato (Solanum tuberosum L.). In general Spraying Zn0-NPs onto leaves greatly improved the vegetative growth characteristics, yield and improved nutritional contents of potato tubers. It is worthy to mention that, 80 mgL of ZnO-NPs have the highest effect on most characters and increase the yield of potato tubers (ha) by (69.89 and 41.69%) compared to control during the two seasons.