(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2006) Kadawatha arachchige, L.N; Illeperuma, C.K.; Wewegama, L.B.; Gunawardhane, M.H.W.
(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2004) Sooriyamoorthy, S.S.; Silva, K.F.S.T.; Gunawardhane, M.H.W.; Illeperuma, C.K.
