Browsing by Author "Paranagama, P.A."
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Item A secondary metabolite with in vitro radical scavenging activity from endolichenic fungus Daldinia eschscholzii found in lichen,Parmotrema sp. in Sri Lankav(NSF:Colombo, 2020-06) Manthrirathna, M.A.T.P.; Kandiah, R.; Gunasekera, D.S.; Samanthi, K.A.U.; Welideniya, D.T.; Maduranga, H.A.K.; Paranagama, P.A.Item A study of the essential oil of turmeric (Curcuma longa L.) by combined GC-MS analysis(1990) Jayatileke, G.S.; Jayawardena, A.L.; Mubarak, A.M.; Senanayake, U.M.; Paranagama, P.A.; Wimalasena, S.Item Activity of chitosan films enriched with the essential oil of Alpinia malaccensis rhizome against S. aureus, E. coli and C. musae(NSF:Colombo, 2016-06) Wickramarachchi, P.A.S.R.; Samaratunge, I.N.; Kaushalya, C.H.T.C.; Rasangika, W.P.M.; Paranagama, P.A.Item Analysis of Sri Lankan essential oils by gas chromatography and mass spectroscopy(1991) Paranagama, P.A.Item Assessment of the egg parasitoid guild of rice leaf folder, Cnaphalocrocis medinalis (Guenee): a search for biocontrol agents(NSF:Colombo, 2016-06) Senanayake, P.D.; Mohotti, K.M.; Paranagama, P.A.Item Azadirachtin effects on proteins synthesized in fat body, haemolymph, ovary and mid-gut of locusts, Schistocerca gregaria(National Science Foundation:Colombo, 2004) Paranagama, P.A.; Connolly, J.D.; Strang, R.H.C.Item Bioactivity of leaf volatiles of Azadirachta indica A. Juss. and Murraya koenigii spreng. against Sitophilus oryzae L. (Coleoptera : Curculionidae)(University of Ruhuna. kamburupitiya, 2002) Paranagama, P.A.; Abeysekera, K.H.T; Nugaliyadde, L.Rice Research and Development Institute; Abeywickrama, K.Item Bioactivity of the essential oil of lemongrass (Cymbopogen citratus) against rice weevil-Sitophilus oryzae (L.) and grain moth-Sitotroga cerealella (Olivier)(2001) Jayaratne, K.H.T.; Paranagama, P.A.; Nugeliyadde, L.; Abeywickrama, K.P.Item A comparison of essential oil constituents of bark, leaf root and fruit of cinnamon (cinnamomum zeylanicum Blum), grown in Sri Lanka(National Science Foundation:Colombo, 2001) Paranagama, P.A.; Wimalasena, S.; Jayatilake, G.S.; Jayawardena, A.L.; Senanayake, U.M.; Mubarak, A.M.Item Effect of azadirachtin on growth and the activity of midgut enzymes of the cockroach periplaneta americana(National Science Foundation:Colombo, 2001) Paranagama, P.A.; Kodikara, K.A.B.C.H.; Nishantha, H.M.I.; Mubarak, A.M.Item Effect of azadirachtin on incorporation of 35S-cysteine into peptides in the brain and corpus cardiacum in the locust Schistocerca gregaria(National Science Foundation:Colombo, 2003) Paranagama, P.A.; Connolly, J.D.; Strang, R.H.C.Item Effect of azadirachtin on specific tissues of cockroaches - periplanata americanaKodikara, K.A.B.C.H.; Paranagama, P.A.Item Evaluation of volatile constituents of neem (Azadirachta Indica A. Juss.) leaf extracts against Callosobruchus maculatus (F)(National Science Foundation:Colombo, 2003) Paranagama, P.A.; Adhikari, A.A.C.K.; Abeywickrama, K.P.; Bandara, K.A.N.P.Item Identification and substrate utilisation of fungi associated with low country live wood termite, Glyptotermes dilatatus Bugnion and Popoff and the host plant, Camellia sinensis L.O. Kuntze(NSF:Colombo, 2016-06) Senanayake, P.D.; Mohotti, K.M.; Paranagama, P.A.Item Presence of Arsenic in pesticides used in Sri Lanka(2011) Jayasumana, M.A.C.S.; Paranagama, P.A.; Amarasinghe, M.; Fonseka, S.I.; Wijekoon, D.V.K.Item Repellency and toxicity of four essential oils to Sitophilus oryzae L. (Coleoptera:Curculionidae)(National Science Foundation:Colombo, 2004) Paranagama, P.A.; Abeysekera, K.H.T.; Nugaliyadde, L.; Abeywickrama, K.P.Item Toxicity and repellant activity of cymbopogon citratus (D.C.) stapf. and Murraya koenigii Sprang. against Callosobruchus maculatus (F.) (Coleoptera; Bruchidae)(University of Ruhuna. Kamburupitiya, 2002) Paranagama, P.A.; Adhikari, A.A.C.K.; Abeywickrama, K.P.; Bandara, K.A.N.P.Item Toxicity and repellency of essential oils from four medicinal plants against stored rice weevil Sitophilus oryzae(2002) Paranagama, P.A.; Jayaratne, K.H.T.; Nugaliyadde, L.; Abeywickrama, K.Item Two new antioxidant active polyketides from Penicillium citrinum, an endolichenic fungus isolated from Parmotrema species in Sri Lanka(NSF:Colombo, 2015-06) Samanthi, K.A.U.; Wickramaarachchi, S.; Wijeratne, E.M.K.; Paranagama, P.A.Item Two new bioactive polyketides from Curvularia trifolii, an endolichenic fungus isolated from Usnea sp., in Sri Lanka(NSF:Colombo, 2015-09) Samanthi, K.A.U.; Wickramarachchi, S.; Wijeratne, E.M.K.; Paranagama, P.A.