Programmeringsstudie Meeldauw : Invloed van bestaande en nieuwe interventies op geïnduceerde weerbaarheid tegen biotrofe schimmel

Purpose of this TKI project Programming study powdery mildew is to generate new knowledge about existingand new interventions aimed at prevention of mildew development in horticultural crops. This research isconducted by Wageningen University & Research greenhouse horticulture business unit. The project is supportedby LTO Glaskracht Nederland. To test the impact of existing interventions on the natural defenses of a plant testsin climate chamber were carried out with total daylight sum, CO2 and relative humidity. After three weeks theinfluence on the production of pathogen related proteins, which is a measure for induced resistance, was veryminor. However, it is confirmed that relative humidity and the daily light sum influence the mildew developmentdirectly and to a higher extent than the CO2. In addition, changes in nutritional composition of plants may be oneof the first indicators for enhanced disease risk (e.g. sodium)