Silicon sources-controlled damping-off and enhanced health of pea (Pisum sativum L.)

Document Type : Original Article

Authors

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

Files

Share

How to cite

Statistics