Gad, D., Radwan, G., Abdrabbo, M. (2023). Effect of spraying with potassium silicate and phosphorus fertilizer levels on growth, yield, and fruit quality of eggplant plants under low temperatures stress. Egyptian Journal of Agricultural Research, 101(1), 213-223. doi: 10.21608/ejar.2023.189007.1326
Doaa A.M. Gad; Ghada U.M. Radwan; Mohamed A.A. Abdrabbo. "Effect of spraying with potassium silicate and phosphorus fertilizer levels on growth, yield, and fruit quality of eggplant plants under low temperatures stress". Egyptian Journal of Agricultural Research, 101, 1, 2023, 213-223. doi: 10.21608/ejar.2023.189007.1326
Gad, D., Radwan, G., Abdrabbo, M. (2023). 'Effect of spraying with potassium silicate and phosphorus fertilizer levels on growth, yield, and fruit quality of eggplant plants under low temperatures stress', Egyptian Journal of Agricultural Research, 101(1), pp. 213-223. doi: 10.21608/ejar.2023.189007.1326
Gad, D., Radwan, G., Abdrabbo, M. Effect of spraying with potassium silicate and phosphorus fertilizer levels on growth, yield, and fruit quality of eggplant plants under low temperatures stress. Egyptian Journal of Agricultural Research, 2023; 101(1): 213-223. doi: 10.21608/ejar.2023.189007.1326
Effect of spraying with potassium silicate and phosphorus fertilizer levels on growth, yield, and fruit quality of eggplant plants under low temperatures stress
1Application of Agriculture Climate Research Department, Central Laboratory for Agricultural Climate (CLAC), Agricultural Research Center, Giza, Egypt
2Central Laboratory for Agricultural Climate (CLAC), Agricultural Research Center, Giza, Egypt
Abstract
Low temperatures have a negative impact on eggplant growth, and development. Also, cold stress especially causes yield-limiting during the Autumn growth season. So, the experiment was carried out in the net house at the Central Laboratory for Agricultural Climate, Giza, Egypt during the 2020/2021 and 2021/2022 seasons. This studied factors were three different levels of phosphorus fertilizer (50,100 and 150% from recommended before transplanting doses) and foliar spraying with potassium silicate (0, 1, 2, 4 and 8g/L). The effect of the two studied factors on growth, yield and quality of eggplant plants was tested. The experimental design was split-plot design with three replicates. The obtained results showed that applying 100% of phosphorus fertilizer has a significant positive effect on all studied traits. Otherwise, the least values were recorded by applying 50% of phosphorus fertilizer in the two seasons. Foliar spraying with potassium silicate at 1g/L increased all measured values on eggplant plants. On the contrary, the lowest values were reported by foliar spraying with potassium silicate at 8g/L in the two study seasons. The application combined 100% of phosphorus fertilizer rate and foliar spraying with potassium silicate at 1g/L had the best all measured parameters. Alternatively, the lowest values were obtained by the application combined application 50% of phosphorus fertilizer and foliar spraying with potassium silicate at 8g/L under conditions trail.
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