Bandara, R.M.G.A., Ranasinghe, C., Kumara, U.M.A. and De Costa, D.M. (2017). Determination of the expression of defense-related genes in papaya leaf tissues of plants treated with plant growth promoting rhizobacteria (PGPR) to manage papaya ringspot virus (PRSV) disease. Proceedings of the 4th symposium of Faculty of Agriculture Undergraduate Research Symposium, Faculty of Agriculture, University of Peradeniya, 12 January 2018, 13