SUSL Staff Directory

Mr. JBDAP Kumara



PhD. (Reading)*

Research area: Crop simulation modeling for upland field crops

Post Graduate Institute of Agriculture, University of Peradeniya, Sri Lanka.


MSc. Environment Science -2011

School of Environment Science

Jawaharlal Neheru University, New Delhi, India


BSc. Agricultural Sciences - 2001, Second Class upper division,

Faculty of Agricultural Sciences, Sabaragamuwa University of Sri Lanka, Sri Lanka.

Specialty – Plantation crop managemnt

Research Interests

Crop simulation modeling

Climate change 

Current Research Projects

Crop simulation modeling for upland field crops

Climate change and extreme weather events in Sri Lanka

Recent Publications

  1. De Costa, W.A.J.M., Abhayapala, K.M.R.D., Malaviarachchi, M.A.P.W.K., Kumara, J.B.D.A.P., Fonseka, R.M., Suriyagoda, L.D.B. & De Costa, D.M. (2018). Impacts of climate resilient and eco-friendly crop management practices on yield of a representative range of crops grown across a natural temperatura gradient in tropical South Asia. Proceeding, 2nd International conference on climate change, Colombo, Sri Lanka. 15th-16th February 2018.


  1. Abhayapala, R., De Costa, W.A.J.M., Malaviarachchi, M.A.P.W.K., Kumara, J.B.D.A.P., Suriyagoda, L.D.B. & Fonseka, R.M. (2018). Exploitation of differential temperature-sensitivities of crops for improved resilience of tropical smallholder cropping systems to climate change: A case study with temperature responses of tomato and chilli. Agriculture Ecosystem & Environment. 261: 103-114.


  1. Malaviarachchi, M.A.P.W.K.,  De Costa, W.A.J.M.,  Kumara, J.B.D.A.P., Suriyagoda, L.D.B. &  Fonseka, R.M. (2015). Response  of  Mung  Bean  (Vigna  radiata  (L.)  R.  Wilczek)  to  an  Increasing  Natural  Temperature Gradient under Different Crop Management Systems. Journal of Agronomy & Crop Science. 202(01): 51-68.


  1. Kumara, J.B.D.A.P., Suriyagoda, L.D.B. & De Costa, W.A.J.M., (2014). Estimation of Leaf initiation and canopy development in widely grown maize , mungbean and tomato varieties in Sri Lanka. proceeding HETC symposium 2014. Colombo, Sri Lanka. 7th and 8th of July 2014.


  1. Kajenthini, S., Kumara J.B.D.A.P. & De Costa, W.A.J.M. (2014). Evaluation of selected climate-adaptive crop and Soil management practices for mung bean Vigna radiata (L.) Wilczek, in the mid-country intermediate zone of Sri Lanka. Proceeding Peradeniya University international research session iPURSE, 2014.


  1. Kumara J.B.D.A.P., Suriyagoda L.D.B., De Costa W.A.J.M. & Mallaviarachchi, M. A. P. W. K.. (2013). Modeling Canopy Development, Biomass and Yield of Maize (Zea mays L.) Under Optimal Management. Tropical Agricultural Research. 25 (2): 214 -227.


  1. Mallaviarachchi M. A. P. W. K.., De Costa W.A.J.M., Fonseka, R.M., Kumara J.B.D.A.P., Abhayapala K.M.R.D.  & Suriyagoda L.D.B. (2013). Response of Maize (Zea mays L.) to a Temperature Gradient Representing Long-Term Climate Change Under Different Soil Management Systems Tropical Agricultural Research. 25 (3): 327 – 344.


  1. Kumara, J. B.D.A.P. Kamal, V., Singh, C.K. & Mukherjee, S. (2011). Remote sensing and hydrogeomorphology based tool for decision making in Tea (Camellia sinensis (L) O. Kuntze) plantations of Sri Lanka, Proceeding annual research session, Sabaragamuwa University of Sri Lanka.


  1. Ariyarathna, H. A. C. K.,  Gunasekare, M. T. K.,  Kottawa-Arachchige, J. D.,  Paskarathevan, R.,  Ranaweera,  K. K., Ratnayake M. & Kumara,  J. B. D. A. P. (2011). Morpho-physiological and phenological attributes of reproductive biology of tea (Camellia sinensis (L.) O. Kuntze) in Sri Lanka. Euphytica.181(02): 203-215.


  1. Kumara, J.B.D.A.P., Ariyarathna, H.A.C.K.,  Ratnayake, M., Arachchi J.D.K. & Gunasekare, M.T.K. (2008). Seasonal and genetic variations in flowering and fruit set of tea [Camellia sinensis (L.) O. Kuntze] in Sri Lanka: Implications to tea breeding programme Proceeding of national symposium / faculty of agricultural Science Ruhuna University.


  1. Gunasekara K &. Kumara, J.B.D.A.P. (2005). Special distribution of estate selection tea clones in    Sri       Lanka, The Journal of Tea Science. 70(2): 69-81.


    11. Sundaravathany, Kumara, J.B.D.A.P. & Gunasekara, K.M.T. (2005). Characterization of tea germplasum using reproductive traits, proceeding of Jaffna Science Association, 12 (01).


    12. Karunarathne, P.A.M.A.S., Wijeratne A.W. & Kumara, J.B.D.A.P. (2005). Linear estimation of girth as a covariate on yield parameters of rubber (Hevea brasiliensis Muell.Arg.): correlation of girth with latex volume and weight: The Journal of Agricultural Sciences. 1 (01): 7-11.