Archive | 2021
Silicon reduces Fusarium Head Blight Development in Barley
Abstract
The evaluation of Si supplied to barley incorporated into the soil and as a foliar spray against four FHB species under controlled conditions was investigated. In addition, the potential resistance mechanisms related to the reduction of Disease Incidence (DI) and Disease Severity (DS) measured at 7, 14, 21, and 28 days post-inoculation (dpi) were proposed. Four Si concentrations of both a SiO2 powder incorporated into the soil as a solid source, i.e., of 0.00, 0.50, 1.50 and 3.00 g/kg and a liquid formulation of Si as a foliar spray, i.e., of 0.0, 0.8, 1.7 and 3.4 ppm were tested to study their effect on the development of FHB fungi on two barley moderately resistant “MR” and susceptible “S” cultivars.