- Plant Eco-Physiology, Soil- Plant Relationships, Wood Science
- Research Interests- Plant tissue culture, Natural products, Plant systematics
- Publications-
- 1. Kariyawasam, P. S. 1997. A Survey of marine macro algae in some selected sites of the southern coast of Sri Lanka. Sri Lanka Association for the Advancement of Science, 53 rd annual session. Pro. part 1, abstracts.
- 2. Samarakoon, S. P., P. S. Kariyawasam, R. Karunatilleka. 1997. Ecology of marine algae of southern Sri Lanka. Part 11: Species composition, dominance and habitats at Goyambokka near Tangalle, Sri Lanka. Sri Lanka Association for the Advancement of Science, 53 rd annual session. Pro. part 1, abstracts.
- 3. Oberbauer, S. F., P. S. Kariyawasam, J. N. Burch. 1997. Comparative analysis of growth, nutrition, carbon isotope ratios and hurricane related mortality of slash pines in South Florida. Florida Scientist, Vol. 60. No. 4. USA.
- 4. Kariyawasam, P. S. 1999. Study of tree-ring formation in South Florida Slash Pine; Pinus elliottii var. densa. Sri Lanka Association for the Advancement of Science, Proceedings of the 55 th annual session, Part 1, Abstracts.
- 5. Kariyawasam, P. S. A key to the genera of macroalgae in the southern coast of Sri Lanka. First Science Symposium, Dec. 2002. Faculty of Science, Univ. of Ruhuna, Sri Lanka.
- 6. . Wijeweera, A. A., D. N. Samaraweera, P. S. Kariyawasam, M. D. Malkanthi. 2011. Studies on effects of different potting mixtures on growth of young cinnamon (Cinnamomum zeylanicum). Proceedings: International Symposium on Agriculture and Environment, Faculty of Agriculture, Univ. of Ruhuna, Sri Lanka.
- 7. Kariyawasam, P. S. 2013. An illustrated Guide to the Marine Macroalgal Genera of Southern Sri Lanka. ISBN 978-955-44799-0-6. Author publication.
- 8. Kariyawasam, P. S., Peiris M.Y.M. and Samaraweera, D. N. 2018. Effects of water deficit stress on growth, leaf relative water content and stomata density of Capsicum annum L. cv. CA8. Proceedings of 5 th International Science and Technology conference, University of Ruhuna, Matara, Sri Lanka. Feb. 15.2018.ISSN:1391-8796.
