Toward decide the consequence of treating with nano zinc and nano selenium as well as potassium silicate as foliar application on, yield and excellence of bread wheat grains underneath water stress situations during 2019 for each 2020 and 2020 for each 2021 seasons. The trials were conceded in a strip-plot layout with three repeats. Perpendicular plots were designated to three water stress transactions expressed as withholding watering i.e. normal watering (5 waterings "control treatment"), withholding the last one watering (4 irrigations) and withholding the last two watering (3 irrigations). The horizontal plots were allocated to eight foliar application transactions with nano zinc and nano selenium as well as potassium silicate. The obtained results showed that withholding last one or two waterings significantly decreased the whole examined traits of wheat in both time of year. Sprinkling wheat plants with sol of potassium silicate at the rate of 4 cm³ for each L exceeded other studied foliar application transactions and produced the maximum amounts of growing characters, yield and its ingredients and grains excellence traits in both time of years. To sustain elevated yields and grains excellence at the identical time diminish water requirements, it could be suggested that sprinkling two times by potassium silicate at 4 cm³ for each L in each sprinkling and withholding last watering (4 irrigations) under the environmental circumstances of Dekernis district, Dakahlia Governorate, Egypt.