PJB-2019-855
Effects of silicon compounds and its role on controlling of soybean charcoal rot disease caused by Macrophomina phaseolina
Waled
Abstract
This work designed to study the efficacy of silicon compounds (sodium silicate and potassium silicate) to control the charcoal rot disease caused by Macrophomina phaseolina in in vitro, under greenhouse, and field. In vitro study indicated that, sodium silicate and potassium silicate at all concentration were effective on the growth of the pathogen. Sodium silicate treatment increasing of root, stem and leaves thickness layers of cortex (CO) and pith (PI) compared to untreated soybean plans. Under greenhouse conditions, treatments with sodium silicate caused the highest percentage of disease reduction and potassium silicate gave the lowest reduction of charcoal rot disease compared with control plants. Under field conditions, application of sodium silicate for controlling charcoal rot disease showed reduce the severity of the disease as well as increased the yield of soybean. From results of this study we can concluded that application of sodium and potassium silicate could be useful in reduction the charcoal rot diseases under greenhouse and field conditions.
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