Supervised research projects:

(a).“Detection of Salmonella sp. in Sri Lanka’s export shrimp” M.Sc student’s project 2004. 

(b) “Survey of some microbial pathogens in farm shrimps and in culture environment” on going M.Sc. research project . 

(C). “Evaluation of Biotechnological processes for management of wastewater generated from textile industries” M.Sc student’s project 2004. 

(d). “Rapid detection and studies on genomic variability of banana bunchy top virus (BBTV) using molecular biological techniques” M.Sc student’s project 2004. 

(e). “Identification and characterization of dieback syndrome in Camellia sinensis (TRI 2025)” M.Sc Student’s project 2005. 

(f). “Fungi associated with stem-end-rot of kartuthacolomban mango (Mangifera indica) and possible ways in infection” M.Sc student’s project 2005. 

(g). “A molecular method for rapid detection of Salmonella in desiccated coconut” M.Sc students project 2005. 

(h). “Collection and characterization of plant pathogenic bacteria from the local agricultural plants” M.Sc student’s project 2005. 

(i). “Collection and Characterization of the plant pathogenic bacteria isolated from the local agricultural and horticultural plants” Research project funded by University of Kelaniya 2004.  

Publications:

Jayaratne,D.L;. (1997) Detection and differentiation of potyviruses affecting yam (Dioscorea spp.) Thesis submitted for the degree of Doctor of Philosophy, University of London.

Jayaratne, D. .L;  (1997) Sugarcane diseases caused by mycoplasma like organisms in Sri Lanka. Pathology and Molecular Biology workshop, International Society of Sugarcane Technologist, South Africa, May 1997.

Jayaratne, D. L; Seal, S E., Isaac, A. M and Mansfield, J (1994) Detection and differentiation of potyviruses in yams (Dioscorea spp.) Seminar on plant virology, Association of Applied Biologists (UK), 20 Oct. 1994.

Jayaratne, D. L., Shanthichandra, W. K. N. and Keerthipala, A. P. (1992) The present status of the mycoplasma disease of sugarcane in Kantale sugarcane plantation seminar organised by the Department of Agriculture and SRI at the University of Peradeniya on 16 Feb. 1992.

Jayaratne, D. L; and Shanthichandra, W. K. N. (1991) Use of Entomorphogenic fungi in sugarcane pest management. Symposium on Microbiology in Agriculture Food and Industry, Organised by SLAAS.

Jayaratne, D. L; (1990) Sugarcane varietal screening for important sugarcane diseases. Seminar on Developments in plant pathological research, Institute of Biology (Sri Lanka), 15 June 1990.

Jayaratne, D. L; (1988) Pineapple diseases of sugarcane caused by Ceratocystis paradoxa: the survial and pathogenicity of the organism in  relation to soil conditions. Workshop on Soil Biology of Natural and Cultivated Ecosystems, organised by the University of Calgary and the University of Kelaniya, 7-10 March 1988.

Jayaratne, D. L; and Widanapathirana, S (1987) Ratoon stunting disease of sugarcane in Sri Lanka. Journal of the National science Council o Sri Lanka, 15,227-237.

Jayaratne, D. L; (1985) Some aspects of ratoon stunting disease of sugarcane in Sri Lanka. Thesis submitted for the degree of Master of Science, University of Kelaniya.

Jayaratne, D. L; and Widanapathirana, Ratoon stunting disease of sugarcane in Sri Lanka. SLAAS annual session 1985.

Sajeevika, W A J; Deshappriya, N and Jayaratne, D. L (1998) Selection of suitable inocula  for studies of leaf scald disease of sugarcane.  Proceedings of  54th SLAAS annual sessions.

Kulluppuarachchi, G.B.U., Abeygunawardena, S.I., Widanapathirana, S and Jayaratne, D.L (2002) Characterization of wastewater generated by textile industry.  Proceedings of 58th SLAAS annual sessions. 

Kumari, S., sarananda, K.H and Jayaratne, D.L (2003) An approach to control stem-end-rot of ‘Karuthacolomban’ mango.  Proceedings of Faculty of Graduate Studies Symposium, University of Kelaniya. 

Kanakaratne, U N D S and Jayaratne, D. L (2004) An alternative (molecular) method for the rapid detection of Salmonellae in desiccated coconut.  Proceedings of Faculty of Graduate Studies Symposium, University of Kelaniya. 

Ranasinghe, C.P., Balasuriya, A and Jayaratne, D.L (2005) Identification and characterization of dieback syndrome in Camellia sinensis (TRI 2025).  Proceedings of Faculty of Graduate Studies Symposium, University of Kelaniya. 

Fernando, S and Jayaratne, D.L (2005) Bacteriological investigation on Sigiriya Frescoes.  Scientific Research in Archeology, December 2005, 14-21. 

Fernando, S and Jayaratne, D.L (2005) Microbiological investigations of the World Heritage Site - Sigiriya.  Scientific Research in Archeology, December 2005, 39-43. 

Jayaratne, D.L and Fernando, S (2006) Microbial investigations of Sigiriya Frescoes.  Proceedings of Faculty of Graduate Studies Symposium (2006), University of Kelaniya. 

Jayaratne, D.L (2006) Genetic Engineering, Genetically Modified Organisms and Biosafety in Sri Lanka.  Proceedings of Holistic Foundation for Assessment and Regulation of Genetic Engineering and Genetically Modified Organisms, Bogor, Indonesia. 

Fernando, S.G. and Jayaratne, D.L. (2007) Microbiological investigations of preserved anchor arms at Galle Archeological Museum.  Maritime Lanka, June 2007, Vol: 02, 2-4. 

Jayaratne, D.L., Kanakaratne, U.N.D.S. and Shanthichandra,W.K N  Polymerase Chain Reaction (PCR) for the rapid detection of Salmonella in Desiccated Coconut (DC), CORD International Journal on Coconut R&D, 2007, 23 (2), 39-45.