Browsing by Author "Balasubramaniam, S."
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Item Alkaloids of the Catharanthus species of Sri Lanka:some preliminary studies(National Science Council:Colombo, 1976) Gunatilaka, A.A.L.; Siriwardene, H.M.U.; Sotheeswaran, S.; Balasubramaniam, S.Item Benzylisoquinoline alkaloids from Anamirta cocculus and Diploclisia glaucescens(National Science Council:Colombo, 1992) Jayasinghe, U.L.B.; Wannigama, G.P.; Balasubramaniam, S.; Nasir, H.; Atta-Ur-RahmanItem Boron content of marine algae from the Mandaitivu and Kirinda coasts and mineral content of nine species of algae from the Kirinda coast(National Science Council:Colombo, 1985) Mageswaran, R.; Balakrishnan, V.; Balasubramaniam, S.Item Carbohydrate constituents of the marine algae of Sri Lanka. Part I:some physico-chemical properties of phycocolloids from eight species of red algae(National Science Council:Colombo, 1981) Dantanarayana, A.P.; Savitri Kumar, N.; Sultanbawa, M.U.S.; Balasubramaniam, S.Item Chemical investigation of Sri Lankan plants. Part 42:a survey of plants of Sri Lanka for alkaloids II(National Science Council:Colombo, 1980) Gunatilaka, A.A.L.; Sultanbava, M.U.S.; Balasubramaniam, S.Item Chemical studies on the sea weeds of Sri LankaSultanbawa, M.U.S.; Balasubramaniam, S.; Kumar, N.S.Item Chemotaxonomic studies of Croton species in Sri Lanka(National Science Council:Colombo, 1988) Ratnayake, B.M.; Wimalasiri, W.R.; Balasubramaniam, S.Item Composition, biomass and primary production of some grasslands in the Ruhuna National Park, Sri Lanka(1983) Chamber, M.R.; Balasubramaniam, S.; Santiapillai, C.; Ishwaran, N.Item A double seedling condition in Rhizophora apiculata Bl(University of Peradeniya. Peradeniya, 1972) De Fonseka, R.N.; Balasubramaniam, S.Item Effect of plant maturity on oil composition of two mint varieties recently introduced to Sri Lanka(National Science Council:Colombo, 1982) Peiris, B.D.; Balasubramaniam, S.; Jayawardane, A.L.; Herath, H.M.W.Item Fingitoxic and insecticidal properties of three Croton species Euphorbiaceae(1987) Bandara, B.M.R.; Wimalasiri, W.R.; Adikaram, N.K.B.; Balasubramaniam, S.; Ranasinghe, M.A.S.K.; Bandara, K.A.N.P.Item The food of the tadpoles of Rhacophorus cruciger cruciger (Blyth)(University of Peradeniya. Peradeniya, 1965) Costa, H.H.; Balasubramaniam, S.1) Examination of food in the alimentary canal of Rhacophorus tadpoles showed that the plankton algae present in the water were ingested without discrimination. @0 Chlorella was the dominant item in the food. Other algae constituted a small fraction. The ingested food also contained a large amount of debris. 3) Except for the diatoms and fragments of green filamentous algae, most of the ingested algae passed out undigested. 4) Experiments showed that starved tadpoles fed on filaments of Spirogyra and the cells of these were partly digested in the alimentary canal.Item A glossary of Sinhala and Tamil names of the plants of Sri Lanka(Department of Forest:Colombo, 1974) Bandaranayake, W.M.; Sultanbawa, M.U.S.; Weerasekara, S.C.; Balasubramaniam, S.Item A phytosociological analysis of three stands of forest in the vicinity of Peradeniya, Kandy district(Forest Department:Colombo, 1980) Greller, A.M.; Gunatilleke, C.V.S.; Gunatilleke, I.A.U.N.; Balasubramaniam, S.Item A preliminary floristic-climatic classification of the forests of Sri Lanka(Forest Department:Colombo, 1980) Greller, A.M.; Balasubramaniam, S.Item Some ecological aspects of the mangroves on the west coast of Sri Lanka(1984-85) De Silva, K.H.G.M.; Balasubramaniam, S.Mangrove formation (mangals) on the west coast are not extensive and, in most places, are limited to narrow strips bordering river mouths and estuaries. A clear ecological zonation is difficult to discern, except for a Rhizophora-Bruguiera zone at the edge of the water followed by a zone containing the other core species. The low level of tidal amplitude as well as persistend and long-term human interference are major factors that led to the limitation of mangroves to narrow strips and to the disappearence or non-establishment of proper ecological zonation. Floristic composition of wet zone mangroves is somewhat different from that of dry zone mangroves. This difference appears to be due to prevailling salinity differences, wet zone mangroves experiencing lower salinity conditions and dry zone mangroves experiencing higher salinity conditions. In each zone, there are riverine and estuarine mangroves. Four types of high salinity (dry zone) estuarine mangroves, viz, fringing, scrub, overwash, and basin, could be distinguished depeding on the geomorphic and flooding characteristics. Basin mangroves are not found on the west coast. MAngroves in Sri Lanka have been subjected to man's detrimental interference to a greater or lesser degree for a long time. In the north-east, mangroves have received relatively less interference, but, those on the west and south-west coasts have been highly interfered with, and in some cases, mangroves have virtually disappeared. Urgent conservation measures are requaired to save Sri Lankan mangrovesItem Studies on root and tuber crops grown in association with coconut 1. . survey on root and tuber crops found under coconut and the morphological characterization of edible aroids(Coconut Research Institute. Lunuwila, 1983) Ibrahim, M.N.M.; Raveendranath, S.; Balasubramaniam, S.