Postgraduate Institute of Agriculture
Inaugural Session-November 17, 2021 ,
Chairperson: Prof. C.M.B Dematawewa, Director, PGIA
| 9.00 a.m. | National Anthem |
| 9.10 a.m. | Welcome address by Prof. P.C.G. Bandaranayake Coordinator-PGIA Congress 2021 |
| 9.20 a.m. | Address by Mr. V.G.T.D.De Silva President Postgraduate Agriculture Students' Association |
| 9.30 a.m. | Address by Dean Faculty of Agriculture, University of Peradeniya |
| 9.40 a.m. | Address by Prof. C.M.B Dematawewa Director, Postgraduate Institute of Agriculture, University of Perdeniya |
| 9.50 a.m. | Address by Prof. M.D. Lamawansa Vice Chancellor, University of Peradeniya |
| 10.00 a.m. | Address by the Chief Guest Mr. Vimlendra Sharan Sri Lanka and Maldives Country Representative at UN FAO |
| 10.15 a.m. | Presentation of the Journal “Tropical Agricultural Research, Vol. 33(1)” |
| 10.20 a.m. | Keynote Address by Prof. Jessica Fanzo Professor of Global Food Policy and Ethics Johns Hopkins Nitze School of Advanced International Studies |
| 10.50 a.m. | Research Highlights of the 33rd PGIA Annual Congress |
| 11.00 a.m. | Commencement of Technical Sessions |
Session Coordinator: Dr. Pradeepa Malkanthi Venue: Seminar Room A, PGIA
| 11.00 a.m. | Dietary Diversity among Adolescents Aged 11–13 in the City of Colombo, Sri Lanka A.D.D.C. Athauda, D.G.N.G. Wijesinghe and G.A.P. Chandrasekara |
| 11.15 a.m. | Market Potential for Quality Certified Dried Fish: A Consumer Choice Experiment in the Galle District of Sri Lanka M.U.N. Gunawardana, W.N. De Silva and M. Aanesen |
| 11.30 a.m. | Behavioral Factors Influencing the Adoption of 1/2S d/2 Tapping System by Smallholder Rubber Farmers in Moneragala District P.K.K.S. Gunarathne, H.V.A. Wikramasuriya, M.W.A.P. Jayathilaka and W. Wijesuriya |
| 11.45 a.m. | The Typology of Tea Smallholding Development Societies: Assessing their Multifunctional Approach in Badulla District of Sri Lanka K.G.J.P. Mahindapala, M.W.A.P. Jayathilaka, L.N.A.C. Jayawardana, A. Abeysooriya and N. Gamage |
| 12.00 noon | Spatial Integration of Vegetable Markets of Sri Lanka during COVID-19 Pandemic D. M. N. J. Kumari, J. Weerahewa and D. Hemachandra |
| 12.15 p.m. | Strengthening the Livelihood Resilience of Smallholder Dairy Farmers against External Shocks in the Northern Dry-Zone of Sri Lanka S. Prasath and K. Umashankar |
Session Coordinator: Dr. Rasanjali Samarakoon Venue: Seminar Room B, PGIA
| 11.00 a.m. | Identifying Panel Inconsistency in Sensory Profiles using Multivariate Analysis of Variance (MANOVA) and Follow–up Canonical Variate Analysis (CVA) D .R. Fernando, S. Samita and T. U.S. Peiris |
| 11.15 a.m. | Nutritional and Phytochemical Composition of Leaves of Moringa oleifera Lam. Grown in Low Country Wet Zone of Sri Lanka B.E.P. Mendis, R.P.N.P. Rajapakse, R. Sivakanesan, A.H.M. Mawjood and M.S.S. Fawmiya |
| 11.30 a.m. | Determination of Nitrite, Nitrate, Total Fat and Heme Iron Contents in Selected Ready to Eat (RTE) Processed Meat Products Available in Sri Lanka M. B. F. Jemziya and T. Mahendran |
| 11.45 a.m. | Manufacturing of Low Haze Instant Tea Extracts Using Sri Lankan Broken Mixed Fannings (BMF) as Raw Materials K.A.P. Dalpathadu, H.U.K.D.Z. Rajapakse, C.V.L. Jayasinghe and S.P. Nissanka |
| 12.00 noon | Total Phenolic Content, Antioxidant Activity and In Vitro Bioaccessibility of Minerals in “Gasnivithi” (Talinum triangulare) and “Keren koku” (Acrostichum aureum) Available in Sri Lanka P.S. Peduruhewa, K.G.L.R Jayathunge and R. Liyange |
| 12.15 p.m. | Effect of Thermal Processing on the in vitro Bioavailability of Minerals and Anti-nutritional Factors from Indian Almond (Terminalia catappa) Nuts G.M. Saibu, O.B. Adu, O.O. Ogunrinola, S.O. Ogun, G.A. Adeyemo, C.M. Nnaife, R.A. Alli1, O.H. Olokodana, M.A. Aruna and O.O. Oguntibeju |
Session Coordinator: Dr. Lalith Rankoth Venue: Seminar Room C, PGIA
| 11.00 a.m. | Population Parameters of Penaeus semisulcatus (De Haan,1884), Caught by Fyke Net Fishers from Kachchai Fishing Ground of Jaffna Estuary, Sri Lanka N. Vithursha, N. Ragavan and U. Edirisinghe |
| 11.15 a.m. | Effects of Elevated Temperature and CO2 on Biomass and Sucrose Accumulation of Selected Sugarcane Genotypes A.L.C. De Silva, W.A.J.M. De Costa and L.D.B. Suriyagoda |
| 11.30 a.m. | Effect of Exotic Tilapia (Oreochromis spp.) on the Population of Native Fish, Climbing Perch (Anabas testudineus, Bloch, 1792) in Malwathu Oya-Nachchaduwa Floodplain P. A. C. T. Perera, C. M. B. Dematawewa, T. V. Sundarabarathy, S. P. Kodithuwakku and U. Edirisinghe |
| 11.45 a.m. | Cellulose Decomposition Potential of Soil as Affected by Vegetable Cultivation: A Case Study in Kegalle District, Sri Lanka W.A.M.S Wickramaarachchi and W.S Dandeniya |
| 12.00 noon | Micronutrient Status in Commercial Sugarcane-growing Alfisols at Sevanagala, Sri Lanka H.A.S. Weerasinghe, G.P. Gunaratne, A.N. Jayakody and R.S. Dharmakeerthi |
| 12.15 p.m. | Analysis of Water Productivity in Paddy Cultivation within the Ulagalla Tank Cascade System in Sri Lanka K.K.P.N. Kahathuduwa and D.V.P. Prasada |
| 11.00 a.m. | Impacts of Nutrient Management and Crop Rotation on Weed Dynamics in Rice under Dry Zone (DL1b) of Sri Lanka W. M. D. M. Wickramasinghe, D. A. U. D. Devasinghe, D. I. D. S. Benaragama, L. D. B. Suriyagoda and W. C. P. Egodawatta |
| 11.15 a.m. | Management of Sugarcane Smut Disease Using Triazole Fungicides and Synthetic Elicitors A. N. W. S. Thushari and D. M. De Costa |
| 11.30 a.m. | Prevalence of Bovine Tuberculosis among Cattle and Buffaloes in the Central Province of Sri Lanka Y.H.P.S.N. Kumara, A. Amarasinhe, P.G.A. Pushpakumara, H.M.S Wasana, W.M.T.D Rathnakumara, G. A. Gunawardana and B. Alexander |
| 11.45 a.m. | Snap Bean Breeding for Rust Resistance: Validation of Molecular Markers for the Ur-11 Gene Introgression H.M.P.S. Kumari, C.K. Weebadde and P.C.G. Bandaranayake, M. A. Pastor Corrales, R.G.A.S. Rajapakshe |
| 12.00 noon | Varietal Screen for Susceptible Stage of Saccharum Hybrids for Deltocephalus menoni (Hemiptera: Cicadellidae), Vector of Sugarcane White Leaf Disease K.M.G. Chanchala, K.S. Hemachandra, L. Nugaliyadde, V.K.A.S.M. Wanasinghe and W.R.G. Witharama |
| 12.15 p.m. | Screening of Finger Millet (Eleusine coracana) Germplasm in Sri Lanka for Blast Disease (Magnaporthe grisea) Resistance W.M.R. Kumari, D.K.N.G. Pushpakumara and W.M.W. Weerakoon D.M.J.B. Senanayake and H.D. Upadhyaya |
| 11.00 a.m. | Ex-post Study on Expected Utility of Weather Information: Quasi Experiment on Sri Lankan Paddy Farming N. M. K. C. Premarathne, A. Senaratne and L. H. P. Gunaratne |
| 11.15 a.m. | Regeneration of Tea [Camellia sinensis (L.) O Kuntze] cv. TRI 5001 through Somatic Embryogenesis in Liquid Dynamic Medium K. K. Ranaweera, M.A.B. Ranatunga, J.P. Eeswara, S. Thilakarathne and H. Kadono |
| 11.30 a.m. | Evaluation of Clay Brick and Laterite Brick as Low-Cost Adsorbents for the Removal of Cd2+ and Pb2+ in Aqueous Solutions K.R. Hettiarachchi, D.M.S.H. Dissanayaka, M.I.M. Mowjood and R.A.A.S Rathnayaka |
| 11.45 a.m. | Pulse-Width-Modulation Control of a Heat Pump Dryer with Cascade Evaporators and Parallel-Flow Condensers A. J. Fernando, K. S. P. Amaratunga, D. A. N. Dharmasena, R. M. R. D. Abeyrathna, I. L. Gajasinghe, H. S. T. Weerakoon, E. M. A. C. Ekanayake and D. M. S. P. Bandara |
| 12.00 noon | Modelling the Particle Size Distribution of Pulverized Gallnuts E. M. A. C. Ekanayake, K. S. P. Amaratunga and A. J. Fernando |
| 12.15 p.m. | Assessment of Mobile-based Extension Service Usage by Medium-scale Tea Growers in Kandy District, Sri Lanka K. G. M. J. W. Gunapala, U. I. Dissanayeke and C. Munasinghe |
| Lunch Break 01.00 p.m. – 01.30 p.m. |
| Invited Presentation I-November 17, 2021 Chairperson: Prof. D.M. De Costa Time: 01.30 p.m. Dissecting & Modulating the Regulation of Postharvest Ripening Pathways in Tomato Towards Reduced Produce Waste & Loss Prof. Diane Beckles Professor of Postharvest Integrative Biology University of California Davis, USA |
| Display Posters 02.10 p.m. – 03.00 p.m. |
| Invited Presentation II-November 17, 2021 Chairperson: Prof. A.J. Mohotti Time: 03.00 p.m. Impact of Climate Change on Tea Production and the Adaptation Strategies Prof. Wenyan Han Tea Research Institute Chinese Academy of Agricultural Sciences |
Chairperson: Prof. C.M.B. Dematawewa, Director, PGIA
| 03.45 p.m. | Invited Presentation by Distinguished PGIA Alumnus Prof. Udith Jayasinghe Secretary, Ministry of Agriculture |
| 04.20 p.m. | Presentation of Awards |
| 04.35 p.m. | Closing Remarks Prof. P.C.G. Bandaranayake Coordinator – PGIA Congress 2021 |
| 04.50 p.m. | Vote of Thanks Ms. L.M.J.N.K. Dissanayake Secretary, Postgraduate Agriculture Students’ Association, PGIA |
Postgraduate Institute of Agriculture, Peradeniya
Stakeholder Behaviour on Food Quality and Safety
Session Coordinator: Dr. Rasanjali Samarakoon Venue: Seminar Room A, PGIA
| 10.00 a.m. | Dietary Micronutrient Adequacy in Early Adolescence in the City of Colombo, Sri Lanka A.D.D.C. Athauda, D.G.N.G. Wijesinghe and G.A.P. Chandrasekara |
| 10.05 a.m. | Assessment of Knowledge and Practices regarding Iron Deficiency Anaemia among Pregnant Women in Kattankudy D.S. Division of the Batticaloa District M.R. Roshana and T. Mahendran |
| 11.10 a.m. | Willingness to Pay for Sustainable Seafood Products across Regions: A Meta-analysis I.P. Lokugamage, W.N. De Silva and M. Aanesen |
| 10.15 a.m. | Effect of Marketing Mix Antecedents on Consumer Brand Preference of Milk Powder M. G. T. Lakmali, G. C. Samaraweera, N. M. N. K. Narayana and W. M. R. Laksiri |
| 10.20 a.m. | A Comparative Analysis of Stakeholder Linkages in Integrated Farming System (IFS) for Technology Reach in selected Agro-Climatic Zones (ACZ) of Karnataka H.R. Ramya, M.C.A. Devi, N. Naveena, S. Subash and P. Kar |
| 10.25 a.m. | A Study on Food Safety Assurance in the Sri Lankan Hospitality Sector and Relevance of Legislations to Promote Food Safety K.G.A. Omalka, R.P.N.P. Rajapakse and B.E.P. Mendis |
Disease Control and Pest Management in Food Crops
Session Coordinator: Ms. Sewwandhi Chandrasekara
Venue: Seminar Room B, PGIA
| 10.00 a.m. | Antifungal Potential of Leaf Extracts of Selected Plants against Colletotrichum gloeosporioides Causing Anthracnose in Papaya R.W.K.M.R.U.S. Bandara, D.W.M.M.M. Kumari and G.D.N Menike |
| 10.05 a.m. | Composition and Antimicrobial Activity of Different Plant Parts of Parthenium hysterophorus L. K. Niranjan, R.Kapilan, P.N.Yapa and P.Kavashana |
| 10.10 a.m. | Status of Fusarium Head Blight on Wheat Fields in Southwestern Ethiopia M. Kebede, G. Adugna and B. Hundie |
| 10.15 a.m. | Antimicrobial Properties of Garcinia cambogia Fruit Rinds and Leaves K.T.N.K. Wijithasena, P.C. Arampath and K.M. Somawathie |
| 10.20 a.m. | Evaluation of Effectiveness of Diamond Back Moth Management Strategies in Cabbage of Up Country Region in Sri Lanka H.A.S.N. Hettiarachchi and K.S. Hemachandra |
| 10.25 a.m. | Wild Rice Species in Sri Lanka as Genetic Resources in Breeding for Brown Planthopper (Nilaparvata lugens (Stål) Resistance in Rice A.V.C. Abhayagunasekara, G.D.S.N. Chandrasena, D.M.O.K.B. Dissanayake, J.M. S. M. Jayasundara, D.K.N.G. Pushpakumara, W.L.G. Samarasinghe and P.C.G. Bandaranayake |
| 10.30 a.m. | Assessment of Grain Preference among Selected Rice Varieties by Field Rat, Bandicota bengalensis and House Rat, Rattus rattus In Sri Lanka S.R. Sarathchandra, K.P.S.D. Hennayake, M.P.H.K. Jayaweera, L. Nugaliyadde, K.S. Hemachandra and A.D.N.T. Kumara |
| 10.35 a.m. | Pesticides Used in Rice Cultivation: Application Pattern by Farmers inTrincomalee District, Sri Lanka D. M. P. N. K. Dissanayke, S. N. T. De Silva, S. Pathmarajah, K. A. D. A. Kodagoda, T. M. R. Chandimal and H. M. T. D. Herath |
Experimentation and Data Analysis
Session Coordinator: Dr. Nuwan de Silva
Venue: Seminar Room C, PGIA
| 10.00 a.m. | Effect of Seed Treatments on Seed Gemination of Madhuca longifolia (“Mee”) Seeds H. G. M. K. Karunarathna, J. P. Eeswara and M. C. M. Iqbal |
| 10.05 a.m. | The Effects of varying Light Intensity on the Growth and Tissue Nutrient Contents of Allium porrum Cultivated Hydroponically under Greenhouse Conditions B. Ntobela, O. O. Oguntibeju, E. A. Akinpelu and F. Nchu |
| 10.10 a.m. | Mid-IR Spectral Characterization and Chemometric Evaluation of Different Solvent Extracts of Coconut Testa Flour K. M. R. U. Gunarathne, J. M. N. Marikkar, E. Mendis, C. Yalegama, L. Jayasinghe and B. S. K. Ulpathakumbura |
| 10.15 a.m. | Niche Partitioning of Sri Lanka White-Eye and Oriental White-Eye (Passeriformes: Zosteropidae) in Sympatry W. M. C. S. Wijesundara, M. W. S. K. Yatigammana and G. L. L. P. Silva |
| 10.20 a.m. | Fitting the Linear, Poisson and Gamma Distributions to Data of a Tropical Pest Study K. Iamba |
| 10.25 a.m. | Factors Influencing the Success of Tank Rehabilitation Projects in India and Sri Lanka: A Meta-Analysis S. Sirimanna and D.V.P. Prasada |
| 10.30 a.m. | Time Series Analysis of Rainfall using Seasonal ARIMA and SAMA Circular Model: Study from Vadamaradchi, Jaffna, Sri Lanka T. Sellathurai, T. Sivananthawerl, S.S. Sivakumar, T. Mikunthan and T. Karunainathan |
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