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Faculty of Science University of Ruhuna R STCON RISTCON 2014 Towards Transdisciplinary Research Culture Abstracts of Presentations 1st Ruhuna International Science and Technology Conference 22 and 23 January 2014 Faculty of Science, University of Ruhuna, Matara, Sri Lanka. RISTCON 2014 RISTCON 2014 „Towards Transdisciplinary Research Culture‟ Abstracts of presentations 1st Ruhuna International Science and Technology Conference January 22-23, 2014 Faculty of Science University of Ruhuna Matara 81000, Sri Lanka ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 1st Ruhuna International Science and Technology Conference ISSN: 1391-8796 © RISTCON 2014 Faculty of Science University of Ruhuna Matara 81000, Sri Lanka All rights reserved. The official electronic PDF copy of the book is available at University of Ruhuna website archives at http://www.sci.ruh.ac.lk/conference/ristcon2014. No part of this serial publication will be reproduced in any form. ii ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 Advisory Board Prof. Chris Austin – Charles Darwin University, Australia Prof. Alfred Antony Christy – University of Agder, Norway Prof. W.G.D. Dharmaratna – University of Ruhuna, Sri Lanka Prof. Susirith Mendis – University of Ruhuna, Sri Lanka Dr. Tony Sahama – Queensland University of Technology, Australia Assoc. Prof. J. F. Sarmiento – Ateneo de Manila University, Philippines Editor-in-Chief Prof. (Ms.) K.B. Suneetha Gunawickrama Editorial Board Prof. (Ms.) Pushpa D. Abeysinghe Dr. (Ms.) Madurani Edussuriya Dr. K. Rodney Fernando Ms. M.A.L. Kalyani Ms. D.W. Chathurika P. Kumari Dr. (Ms.) D.H.N. Munasinghe Dr. H.D.S.D. Perera Mr. L.W. Somathilake Dr. Sarath Wanniarachchi Prof. (Ms.) K.K.A.S. Yapa Cover page design: Mr. Ranil Wickramaratne Responsibilities of the content of the abstracts included in this publication remain with the respective authors. iii ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 The 1st Ruhuna International Science and Technology Conference, RISTCON 2014 was organized by the Faculty of Science, University of Ruhuna with the theme „Towards Transdisciplinary Research Culture‟. The abstracts arisen from research work in diverse disciplines of Science & Technology have been peer-reviewed prior to acceptance. The abstracts presented at the conference have been edited to maintain language accuracy and page limits and included in this publication after receiving author confirmation to the edited version. Funding received for publishing this book of abstracts from the grant „Transforming University of Ruhuna to International Status‟ (TURIS) and National Science Foundation (NSF) of Sri Lanka is greatly appreciated. Editor-in-chief 1st RISTCON 2014 Our Major Sponsors TURIS Grant Harischandra National Science Faculty of Science Amazon Trading University of Ruhuna Pvt. Ltd. Foundation University of Ruhuna Pvt. Ltd. When citing the abstracts published, this serial publication is to be referred to as „Abstracts of Presentations of the 1st Ruhuna International Science and Technology Conference, Jan 22-23, 2014, University of Ruhuna‟. iv ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 TABLE OF CONTENTS pg Abstracts of Oral Presentations Evaluation of anti-histamine and membrane stabilization potentials 1 on red blood cells of acetone extract of Pleurotus ostreatus. W.J.A.B.N. Jayasuriya, S.M. Handunnetti, C.A. Wanigatunga, G.H. Fernando, D.T.U. Abeytunga and T.S. Suresh Prevalence of Obstructive Sleep Apnea risk among public 2 transport bus drivers in Jaffna, Sri Lanka. Balachandran Gajalaksan, Sundaralingam Lija, Pethirupillai A. D. Coonghe and B. Thirumaran Study of fasting plasma glucose levels in non-diabetic subjects 3 related to selected risk factors for type 2- diabetes. K.N.W. Walatara, M.F.F. Nusha, K. Anusha, L.V. Athiththan, P.P.R. Perera and U.P.K. Hettiaratchi Association of C-reactive protein concentration with weight of 4 patients awaiting Coronary Artery Bypass Graft (CABG). E.M.S. Bandara, S. Ekanayake, A.D. Kapuruge and C.A. Wanigatunge Branching pattern of Inferior thyroid artery and its relationship to 5 the recurrent laryngeal nerve in Sri Lankans. Romini Niranjan, Sivananthini Uthayakumar and Surangi G. Yasawardene The distribution of somatotypes and sexual dimorphism among a 6 group of young Sinhalese adults. L.H.L.C. De Silva, H.M.I.U. Herath, W.L.N.S. Samaranayake, S.I. Jayasinghe, P.P.C.K. Gunawardena, A.P.H.M. Ariyawansha, K.K. Wijeyarathne, M.A.M. Azam, A.A.H. Supunda, A.K.P. Rathnayake and J.K. Dissanayake v ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 Influence of body weight, gender and milking interval on venom 7 yield of scorpion Heterometrus swammerdami (Simon 1872) (Scorpionidae) from Jaffna peninsula. K. Veronika, K. Akilan, A. Murugananthan and T. Eswaramohan Comparison of soil-dwelling insect fauna in eco-friendly versus 8 conventional home gardens at selected localities in Hambanthota District. K.S. Hemachandra, B.P.U.R. Bandara, W.A.P. Weerakkody, J.K.S. Wasantha, U.G.A.I. Sirisena, T.D.C. Priyadharshani and J.M. Soorasena Prevalence of ticks and tick-borne blood parasites in selected cattle 9 farms in Mirigama veterinary range in Sri Lanka. W.P.S.N. Wijeweera, K.A.M. Sudarshani and H.C.E. Wegiriya Successes and failures of inland fisheries management in 10 Ridiyagama Reservoir in Ambalantota, Sri Lanka. S. Devasiri and S. N. Dushani Production of simulated caviar using readily available freshwater 11 fish species Cirrhinus mrigala. I.G.S.N.K. Abeyrathne, N.P.P. Liyanage, G.G.N. Thushari and S.C. Jayamanne An assessment of heavy salting and salted drying on yield and 12 quality of Talang Queen (Scomberoides commersonianus) fish fillets. D.S. Ariyarathna and M.R. Perera Establishment of farmer operated, low cost, simple technology 13 mini hatchery for Genetically Improved Farmed Tilapia (GIFT). W.A.R.K. Senaarachchi and M.P.K.S.K. de Silva Evaluation of binders for Tilapia fish sausage production and shelf 14 life evaluation in frozen storage. D.D.A.D.U. Deshapriya, A.N. Lalantha and C.V.L. Jayasinghe vi ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 Effect of dietary C18 PUFA on fillet Long Chain concentrations: 15 A comparison between Murray cod and rainbow trout. Shyamalie D. Senadheera, Thanongsak Thanuthong, David S. Francis and Giovanni M. Turchini Rates of phosphorus on growth and yield of maize (Zea mays L.) 16 in the dry zone of Sri Lanka. D. M. S. Duminda, S. P. Indraratne and D. Kumaragamage Effects of different natural Organic Additives on In Vitro 17 regeneration of radish (Raphanus sativus L.) Var. Beeralu Rabu I.P. Manawadu, N. Dahanayake and S.G.J.N. Senanayake Allelic diversity and seedling tolerance of some rice (Oryza sativa) 18 germplasms under salt stress. B.A. Dahanayaka, N.S. Kottearachchi, D.R. Gimhani and W.L.G. Samarasighe Egg parasitoids of Cnaphalocrocis medinalis (Guenee): the first 19 record of Trichogrammatoidea bactrae Nagaraja, and Trichogrammatoidea nana Zehntner (Hymenoptera: Trichogrammatidae) in Sri Lanka. K.S. Hemachandra, A. Polaszek and M.C.D. Perera Salient characters of Weedy rice (Oryza sativa f. spontanea) 20 populations in highly infested areas in Sri Lanka. S. Somaratne, K.D.K. Karunarathna, S.R. Weerakoon, A.S.K. Abeysekera and O.V.D.S.J. Weeresena Selection of suitable mango variety for fruit bar preparation 21 K. Premakumar Heavy metal contamination in soils of a selected mapping unit in 22 dry-zone of Sri Lanka U.K.P.S. Sanjeevani, S.P. Indraratne, R. Weerasuriya, W.A.U. Vitharana and F. Rosemary vii ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 Identification of potential fertilizer management zones based on 23 the spatial variability of surface soil pH in a vegetable field, Sri Lanka. E.M.S.K. Thilakarathna, W.A.U. Vitharana, S.P. Indraratne, A. Verdoodt, M. Van Meirvenne, T. Saey and W.K. Balasooriya Present status of pesticides usage and level of awareness among 24 farmers in Jaffna peninsula K. Keerthika, K. Pakeerathan and G. Mikunthan Phytochemical screening and bacteriological assay of tea samples 25 from upcountry and Low country Sri Lanka S.K. Jayasinghe, J.A.U.I. Jayasinghe, A.A.F. Nusra, H.B.P. Sandani, P.D. Abeysinghe and R.N. Pathirana Preliminary evidence of Bermuda grass white leaf (BGWL) 26 phytoplasma associated with rice yellow dwarf disease (RYD) in Sri Lanka. S. Abeysinghe, W.G.S.M. Kumari and M. Dickinson Induced colonization of GFP-labelled Azorhizobium caulinodans 27 ORS 571 in rice roots. Thilini A. Perera and T.L. Shamala Tirimanne Heavy metal pollution effects on photosynthetic characteristics of 28 Fucus vesiculosus and Ulva lactuca W.A.A.D. Lanka Wickramasinghe, Valentine K. Mubiana and Ronny Blust Physicochemical and microbiological quality of some selected 29 non-carbonated bottled drinking water sold in Southern Province of Sri Lanka K.K.G.U. Hemamali and A.A.F. Nuzra Inhibition effect of Jackfruit (Artocapus heterophyllus) leave 30 extract on the corrosion of Mild Steel in 1M HCl medium. M. Edussuriya and U.S.K. Arachchige viii ISSN: 1391-8796 Abstracts of Presentations 1st Ruhuna International Science & Technology Conference University of Ruhuna, Matara, Sri Lanka January 22-23, 2014 Phenolic content and antioxidant activities of millet grains as 31 affected by extraction methods and solvents.