Induced systemic resistance and promotion of wheat and barley plants growth by biotic and non-biotic agents against barley yellow dwarf virus

Abstract

8CFU/ml, Sea force extract and Elsa fungicide at 1 ml/L were used to induce resistance in the plant against BYDV. The four elements were applied before and after virus-plant inoculation. Results show that all elements stimulated plant growth as estimated by plant heights and chlorophyll concentrations, and elicited significant reduction in disease incidence as determine by BYDV-disease scoring symptoms. The applications of these elements twice (before and after virus inoculation) were found to be more efficient in promoting plant growth and reducing virus disease score. The plant heights, chlorophyll concentrations and BYDV-disease scores were 82.25, 85.59, 74.38, 76.26 cm, 54.19, 45.81, 47.98, 47.85 µg/cm 2