Effect of silicon on incidence and severity of purple blotch disease in onion was assessed by conducting field experiments at College of Horticulture Bengaluru. Silicon treatments significantly reduced the disease incidence and severity in two varieties (Bellary Red -Highly susceptible and Arka Kalyan - moderately resistant) of onion taken for the study. | Effect of silicon on incidence and severity of purple blotch disease (Alternaria porri (Ellis) Cif.) in Onion (Allium cepa L.)
