Wathulanda, H.C.J.; Jayasinghe-Mudalige, U.K.; Lokuge, L.D.M.N.; Edirisinghe, J.C.; Herath, H.M.L.K.; Udugama, J.M.M.; Silva, K.D.R.R.; Josephkumar, T.
(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)