ElGhanam, A., Rahhal, M., Ragab, S., Khafagi, E. (2024). Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.). Egyptian Journal of Agricultural Research, 102(3), 479-492. doi: 10.21608/ejar.2024.289594.1544
Abeer A. ElGhanam; Mohamed M.H. Rahhal; Seham S. Ragab; Eman Y. Khafagi. "Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.)". Egyptian Journal of Agricultural Research, 102, 3, 2024, 479-492. doi: 10.21608/ejar.2024.289594.1544
ElGhanam, A., Rahhal, M., Ragab, S., Khafagi, E. (2024). 'Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.)', Egyptian Journal of Agricultural Research, 102(3), pp. 479-492. doi: 10.21608/ejar.2024.289594.1544
ElGhanam, A., Rahhal, M., Ragab, S., Khafagi, E. Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.). Egyptian Journal of Agricultural Research, 2024; 102(3): 479-492. doi: 10.21608/ejar.2024.289594.1544
Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.)
Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt
Abstract
This study evaluated the response of three pea cultivars (Pisum sativum L.): Master B, Blmewar, and Sugar Gum to damping-off under greenhouse conditions. It also investigated the effect of seed soaking in silicate solutions on damping-off and plant growth under field conditions. Fungal pathogens identified were Fusarium oxysporum, Rhizoctonia solani, Sclerotinia sclerotiorum, and Pythium ultimum. These pathogens caused varying levels of damping-off in pot experiments. Field trials at the Etay El-Baroud Agricultural Research Station, El-Beheira Governorate, were conducted over two seasons (2021/2022 and 2022/2023) using magnesium silicate, potassium silicate, and Rizolex/Thiram treatments. Sugar Gum showed the lowest damping-off rates and superior growth characteristics, including root length, fresh and dry weight, and seed protein content. It also had the lowest polygalacturonase and Cx-cellulase activities. Blmewar had the highest seed weight per plant. Rizolex/Thiram was the most effective treatment, but both silicates also significantly reduced damping-off compared to the control. MgSiO3 (4 g/L) was particularly effective, showing the lowest pre-emergence damping-off and improved growth parameters.
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