The electronic version of the Tr

The electronic version of the Tropical Agricultural Research Volume 23, Number 2, 2012

ISSN: 1016.1422

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	Research Articles	Page

1.	Morphological variation of Four Tilapia Populations in Selected Reservoirs in Sri Lanka	105
	S.P. Samaradivakara, N.Y. Hirimuthugoda, R.H.A.N.M. Gunawardana, R.J. Illeperuma,,N.D. Fernandopulle, A.D. De Silvaand P.A.B.D. Alexander
2	*Antioxidant Activity of Caryota urens* L. (Kithul) Sap**	117
	P. Ranasinghe, G.A.S. Premakumara, C.D. Wijayarathna and W.D. Ratnasooriya
3	*Biochemical Basis for Antibiosis Mechanism of Resistance in Sugarcane to Early Shoot Borer, Chilo infuscatellus* Snellen**	126
	B. Bhavani, K.D. Reddy , N.V. Rao and M.B. Lakshmi
4	Effect of Shade Levels on Leaf Area and Biomass Production of Three Varieties of Dracaena sanderiana L. in the Dry Zone of Sri Lanka	142
	*S. Srikrishnah, S.E. Peirisand S. Sutharsan*
5	Economic Impacts of Porcine Reproductive and Respiratory Syndrome (PRRS) Outbreak in Vietnam Pig Production	152
	*H. Zhang and H. Kono*
6	Cloning and Functional Characterization of Key Enzymes in Putative Octadecanoid Pathway of Physcomitrella patens	160
	*P.K.G.S.S. Bandara, R.P. Karunagoda, K. Takahashi and K. Nabeta*
7	Effect of Soil Amendments on Reclamation of Saline-Sodic Soil	168
	*K. Prapagar, S.P. Indraratne and P. Premanandharajah*
Short Communications
8	Assessment of Groundwater Resources in Jaffna Limestone Aquifer	177
	*M. Thushyanthy and C.S. De Silva*
9	Luffa cylindrica (L.) M. Roemer (Sponge Gourd-Niyan wetakolu): An Emerging	186
	*M.W.K.P. Silva, R.H.G. Ranil andR.M. Fonseka*