Effect of Spraying with Nano Silica and Water Salinity Levels on Growth and Yield of Wheat

Abstract

A field experiment was carried out during the winter season 2020-2021 at research station of the College of Agriculture, University of Al-Muthanna (Al - Bandar) to study the effect of spraying with nano silica and salinity levels of irrigation water on the growth and yield of wheat. The experiment was applied in a strip split plot design. With three replications, the spraying included three concentrations of silica (3, 6, 9 ppm) and three concentrations of irrigation water salinity (3, 6, 9 ds m−1). The results indicated that the level of 9 ppm sprayed exceeded significantly in the following traits and gave the highest means.: plant height 84.26 cm, number of tillers 354.10 m2 tillers, area of flag leaf 40.19 cm2, spike length 9.89 cm, number of spikes 288.93 m2 and yield 4.27 tons ha−1. The results also indicated that the increase in salinity level led to a decrease in the characteristics of plant height 82.22 cm, number of tillers 319.43 m2 tillers, area of flag leaf 39.93 cm2, spike length 9.19 cm, number of spikes 260.13 m2, and yield, which amounted to 3.86 tons ha−1.