Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.) | ||
| Egyptian Journal of Agricultural Research | ||
| Article 13, Volume 102, Issue 3, September 2024, Pages 479-492 PDF (768.09 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejar.2024.289594.1544 | ||
| Authors | ||
| Abeer A. ElGhanam; Mohamed M.H. Rahhal; Seham S. Ragab; Eman Y. Khafagi* | ||
| 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. | ||
| Keywords | ||
| Pea; magnesium silicate; potassium silicate; damping-off stress; lignin; nitrogenase; bacterial nodules; polygalacturonase; Cx-cellulase | ||
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