Induced systemic resistance in groundnut by foliar application of Headline (Pyraclostrobin 20% WG)

Plant’s own defence mechanisms can be stimulated by the application of elicitors for its protection. We evaluated the ability of Headline (Pyraclostrobin 20% WG) to induce systemic resistance in 40-day-old field-grown groundnut plants by foliar application. Elevated levels of defence-related enzymes such as phenylalanine ammonia lyase, peroxidase, β 1,3 glucanase, nitrate and nitrite reductase and other biochemical parameters such as total phenol, total protein, total carbohydrate and total chlorophyll content were found highest in Headline treated plants on fourth day after treatment in comparison with untreated plants. The treated plants showed enhanced growth and development as well as increased yield up to 16%. About 10% mortality rate was found in groundnut seeds treated with Headline when grown on Sclerotium rolfsii-infested soil than control. These results indicate that foliar application of Headline can be successfully developed the broad-spectrum resistance against pathogens in groundnut.