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The Annals of the Sri Lanka Department of Agriculture presents research findings generated by scientists and agricultural professionals of the Department of Agriculture (DOA). The contributions are selected through a rigorous review process coordinated by the ASDA Editorial Committee, with the involvement of subject matter experts from universities and other research institutions serving as independent reviewers.

The Annals includes full research papers, short communications, abstracts of preliminary research studies presented as posters at the symposium, and research news articles highlighting significant scientific and technological developments. The published contributions encompass a broad spectrum of agricultural disciplines, including agronomy, plant breeding, agricultural economics, biotechnology, plant protection, agricultural extension, soil and water management, climate smart agriculture and other related fields.

The Annals of the Sri Lanka Department of Agriculture serves as an important platform for disseminating evidence-based research findings, sharing scientific knowledge, and highlighting the outcomes of collaborative research undertaken by scientists and agricultural professionals of the DOA, thereby contributing to the advancement of agricultural research and development in Sri Lanka.

ASDA ANNALS

2026

Agripreneurship through SMART AGRICULTURE

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2021

	Biodiversity, Climate Change and Homeostasis in Crop Improvement M.P. Dhanapala
	Characterization of Native Phosphorus Solubilizing Fungal Species and Development of a Phosphorus Biofertilizer Formulation for Rice Cultivation T.G.I. Sandamali, Y.J.P.K. Mithasena, D.M.J.B. Senanayake, K.N.G.Y. Prasanna, D.K.T.S. Kumara, J.N. Silva, M.Y.G. Perera, K.K.D. Chandrasekara, G.D.A. Priyantha
	*Silicon Mediated Enhanced Resistance in Rice Plants Against Thrips; Stenchaetothrips biformis* (Bagnall) (Thripidae: Thysanoptera)** G.D.S.N. Chandrasena, H.N.S. Fernando, W.M.J. Bandara, D.M.O.K. Dissanayake, U.C. Kahawaththa, P.M.H. Cooray, M. Pagirathi
	Assessment of Genetic Purity of Chilli Hybrids Using Molecular Markers W.A.R. Dhammika, D.M.J.B. Senanayake, K.N. Kannangara, P.G.S.D. Gunasena, P.N. Deniyagedara, I.M.S.N. Ilangakoon
	*Sustainable Management of Fall Armyworm, Spodoptera frugiperda* (Lepidoptera: Noctuidae) in Maize Cultivation of Sri Lanka Through Local Natural Enemies** K.A.N.P. Bandara, S.S. Weligamage, K.M.D.W.P. Nishantha, Y.D.G.C. Yubak
	Improving Quality and Storage Life of Watermelon, Capsicum and Okra Seeds by Polymer and Fungicide Film Coating M.G.D.L. Priyantha, A.R.J. Athukorala, H.M.J.K. Herath, A.S. Rathnayake
	Evaluation of Pineapple Hybrids for Quantitative and Qualitative Characters and Inheritance of Leaf Spine Distribution I. Kalubowila, S.M.G.D. David, R.M.M.N.K. Rathnayaka, H.G.B. Darshana
	Selection of Culm Characteristics of Rice to Improve Lodging Resistance and Yield Components L.C. Silva, Y.M.S.H.I.U. De Silva, H.R.M.C. Rathnayake, W.R.C.P. Samarasinghe, W.C.P. Egodawatta, D.M.J.B. Senanayake, J.M.S.V. Bandara, K.A.K. Wijesena
	*Seed Quality Improvement of Eggplant (Solanum melongena L.) through Canopy and Nutrient Management Package* S.M.S.W. Wanigadewa, H. Fonseka, K. Iizuka, G.V.G.T.D. Kulathunga
	Regional Diversity of Local and Exotic Finger Millet Germplasm based on Qualitative and Quantitative Traits in Sri Lanka W.M.R. Kumari, D.K.N.G. Pushpakumara, W.M.W. Weerakoon, D.M.J.B. Senanayake, H.D. Upadhyaya
	Determination of Trace Elements Contents in Rice and Vegetables Cultivated in Selected Districts of Sri Lanka C. Magamage, W.H.M.C.U. Waidyaratna, W.R.W. Wimalasena, D.G.G.S. Dharmarathna
	*How do Different Storage Conditions Affect the Seed Longevity? Empirical Evidence from Chilli (Capsicum Annuum L.) Seeds of Variety MI 2 in Sri Lanka* R.A.I.S. Ariyarathna, S.L. Weerasena, C.K. Beneragama
	*Nutrient Composition and In-Vitro Starch Digestibility of Selected Rice Varieties (Oryza Sativa L.) in Sri Lanka* S.P. Rebeira, B.M.K.S. Menike, A. Bentota, D.M.J.B. Senanayake, B.D.R. Prasantha, N.D.V. Champika, D.K. Padmalatha, K.M.K. Kumarihamy
	*Germinability of In-Vitro* Conserved Dioscorea Microtubers in Different Storage Conditions** E.S.C Edirisinghe, W.L.G. Samarasinghe, S.K. Wasala, R.W. Kemali, K.M.G. Kulathunga
	Development of Salinity and Submergence Tolerant Rice Lines M.C. Millawithanachchi, M.G.N. Rupasinghe, T.G.I. Sandamale, S.M.C.N. De Silva, U.H.K. Waiyanatha, H.K. De Silva, E.A.N.P.K. Edirisinghe, J.S.H. Liyanaarachchi, G.W.N. Navoda, D.K.T.S. Kumara

	Effect of Non-Chemical Weed Management Options on the Yields and Profitability of Direct Seeded Rice Cultivation T. K. Illangakoon, W.U.S. Geethika, C.H. Piyasiri, C. Kodithuwakku, M. Perera, H.M.S. Herath
	Bg 375 Medium Age Rice Variety for Potential Rice Growing Environments W.S.Priyantha, S.W.Abeyseakera, B.I.Hettiarachchi, S.S.Paththinige, K.G.P.B.Karunarathna, H.M.A.I.Kumarasinghe, U.W.K.Jayasinghe, M.A.D.Jayasundara W.M.P.D.Jayarathna
	An Evaluation of the Economic Impacts of Research on Hybrid Chilli Package by the Department of Agriculture A.T. Sooriyaarachchi, R.A.C.J. Perera, H.M.N.S. Herath
	*Development of Natural Food Colorant from Pumpkin (Cucurbita maxima) Varieties Available in Sri Lanka* W. Marasinghe, S.M.A.C.U. Senarathne, C. Gunawardane, L. Jayathunga
	Bg 314, a Promising Rice Variety for Rainfed Areas of Dry and Intermediate Zones of Sri Lanka C.H. Piyasiri, T.K. Illangakoon, W.M.W. Weerakoon, R.S.K. Keerthisena, A.P. Bentota, D.M.J.B. Senanayake, S.S. Paththinige, K.S. Udawela, S.P. Rebeira, S.R. Sarathchandra, K.R.D. Gunapala, W.S. Priyantha, R.M.U.S. Bandara, W.M.U.S. Geethika, J.M.N.P. Somarathne, D.A.P. Kanthi, D.D. Witharana
	Physical Properties, Proximate Composition and Fatty Acid Profile of Sesame Varieties and Promising Lines of Sri Lanka I.R Liyanage, R.A.A. Ranathunga, U.I.P. Perera, G.T.N. Gunasekara, R.K.R. Dilhani
	*Influence of Processing Method and Variety on the Quality of Fried Sticks and Frozen Fries of Cassava (Manihot esculenta)* S.P. Rebeira, R.M.L.K. Piyasena, H.B. Sasiprabha, S.M.A.C.U. Senarathna, A.M.M.U. Adikari, K.G.U.K. Koongahage, M.H.M.D.M.L. Medagoda

Recent Studies of Rice Research and Development Institute Related to Environmentally Friendly Rice Cultivation

H.M.N.K. Herath, D.M.J.B. Senanayake, U.A.K.S. Udawela, C.H. Piyasiri,T.K. Illangakoon, T.G.T. Sadamali, S.R. Sarthchandra, K.R.D. Gunapala, H.N.S. Fernando, H.M.S.Herath

	Development of Locally Adaptable Cytoplasmic Male Sterile Rice Lines via Backcross Breeding W.S. Priyantha, U.A.K.S. Udawela, M.A.R.A. Mandanayake, K.R.D. Gunapala, S.R. Sarathchandra, D.M.N.D. Dasanayake, R.P.D.H. Hemachandra, D.D. Witharana
	Influence of Weather Parameters on Seasonal Variation of Aphid and Whitefly Populations on Potato in Up Country Wet Zone of Sri Lanka H.A.S.N. Hettiarachchi, M.A. Kumarage, K.M.C.R.K. Bandara
	Impact of Intensive Farming on Soil Fertility Status in Regosols in The Kalpitiya Peninsula S.B.A. Weerawarna, H.K. Kumuduni, K.M.A. Kendaragama, N.V.A. Manjula, P.D.K.D. Jayarathne
	*Effect of Different Seed Hydropriming Techniques on Field Germination, Vigor, Growth and Yield of Groundnut (Arachis hypogaea L.)* I.C.S. Edirimanna, K.D.C.D. Priyadarshani, T.S. Hewawitharana, M.P.H.D. Pathirana
	Impact of Calender-based Fungicide Application for the Management of Potato Late Blight in Up Country Wet Zone of Sri Lanka C. Ranasinghe, H.K.B.M.I. Karunarathna, K.P.H. Chathuranga, W.M.A.S. Bandara
	Significance of Grain Quality Characteristics of Imported Basmati Rice W.S. Priyantha, D.M.J.B. Senanayake, U.A.K.S. Udawela, M.A.N. Manawadu, W.M.C.D.Wanisekara, K.M.K. Kumarihamy, D.M.G.H. Tennakoon
	*Possibility of Using Pineapple (Ananas comosus) Crown as an Alternative Propagule for Commercial Cultivation* S.T. Baddegama, B.L.D.L.D. Wijesundera, R.N. de Silva
	Selection of Traditional Rice Cultivars for Galle District Based on Agronomic and Farmer – Consumer Perspectives W.G.M. Wickramasinghe, M.C. Millawithanachchi, L.M. Abeywickrama

		Abstract	Poster
	Quality of the Commercially Available Composts and the Compliance with Sri Lanka Quality Standards (SLS 1635:2019) N.R.N. Silva, M.M.T. Roshima, P. Wakwellaand, W.M.C.N.Wijesinghe
	Effects of Crop Establishment Methods on Plant Characteristics of Photoperiod Sensitive Rice Variety Bg 38 Under Rainfed Conditions of WL_2a Agro- Ecological Region G.D.A. Priyantha, W.A.K.S. Wijesooriya , W.D.P. Weerasinghe, N.T. Prathapasinghe
	Characterization of ‘Candidatus Phytoplasma Asteris’ (16SrI)Associated with Dieback and Yellow Crinkle Diseases of Carica papaya in Malaysia T.M.N.D. Tennakoon, K.L. Ling, K.B. Ahmad, G. Vadamalai
	Rice Varietal Preference of Bandicota bengalensis (Field Rats) Under Controlled Conditions S.R. Sarathchandra, D.M.J.B. Senanayake, U.A.K.S. Udawela, M.P.H.K. Jayaweera, K.P.S.D.Hennayake, S.Y.R. Jayananda, N.M.M.U. Nawarathne, R.M.C.Y. Rajapaksha, D.M.O.K.B. Dissanayake
	Dose Revision of Herbicide; Florpyrauxifen benzyl 25 g/L EC R.M.U.S. Bandara, J.A. Sumith, U.S.K. Abeysinghe, W.M.U.B. Wickrama, Y.M.S.H.I.U. de Silva, H.M.M.K.K.H. Dissanayaka
	*Longevity of Seeds of “Nivithi”(Basella alba L.) Variety “Yoda” as Influenced by Two Storage Conditions* K.K.S.D. Pradeepika, P.A.G.C. Kumari, A.S.L. Abeynayake, W.G.D.S. Jayalath, D.H. Dilrukshika
	An Efficient Micropropagation Protocol For Kolikuttu Banana Variety Agra D.A. Shirani, A.W. Gaminie, S.G.U. Chanaki
	Participants Responses to Improve Trainers Training Programs H.M.N.K. Herath, D.M.J.B. Senanayake, K.R. Thilakasiri, L.A.D.S. Wijesinghe , G.G.V. Shyamali
	Pre-Plant Weed Management Through Depletion of Soil Seed Bank by Poly Mulching in Lowland Paddy Fields R.M.U.S. Bandara, B. Marambe, V. Kumar, W.M.U.B. Wickrama, Y.M.S.H.I.U. de Silva, H.M.M.K.K.H. Dissanayaka
	Potential Phytosanitary Risk on Importation of Seed Potato to Sri Lanka N.H.M.S. Chithrapala, W.A.R.T. Wickramaarachchi, N.O. Rajapaksha, D.M.P. Sulomani
	*Evaluation of Selected Plant Extracts Against Rice Brown Planthopper (Nilaparvata lugens)* S.R. Sarathchandra, D.M.O.K.B. Dissanayake, A.P. Jayasundara, A.G.G.S. Kumari, S.Y.R. Jayananda, K.P.S.D. Hennayake, M.P.H.K. Jayaweera, C.H. Piyasiri

2020

	Optimizing Cue-Lure and Methyl Eugenol Blends for Male Attraction of Zeugodacus cucurbitae P.H. Ranaweera, M. Siriwardana, P.V. J. S. Wijethilake and M. D. M. Nayomi
	Effect of Production Environment and Storage Condition on Soybean Seed Longevity W.M.I. Weerasekara, U. R. Sinniah , S. A. Abdurahman, S. Satheeswaran, L. Priyantha, L.L.R.R. Lokuliyanage , E.M.G.K.Edirisuriya, R.A.P.S. Wimalasena, A.W.A. Samarasinghe, A. S. Rathnayaka
	Germplasm Evaluation and Donor Identification for Early Seedling Vigour in Rice under Dry and Wet Direct Seeded Cultivation: A Descriptive and Multivariate Approach M.G.S.P. Pathirana, D.M.J.B Senanayake, R.S.W. Gamlath, S. Paththinige, S. Dixit,J.E. Hernandez
	From Native to Novel: Unlocking the Potential of Modified Cassava Starches through Comprehensive Characterization R.A.A. Ranathunga, D.M.P.K.G.N.D. Dissanayake, P.A.B.N. Perumpuli, H.M.D.B. Hemanayake
	*Additive-Dominance Model Explaining Inheritance of Reaction to Mungbean Yellow Mosaic Virus Disease in Mungbean [Vigna radiata* (L.) wilczek]** M.J.M.P. Kumararathna, D.S. de. Z. Abeysiriwardena, D.M. de. Costa, D.M.J.B. Senanayake, W.H.M.L.S. Waidyarathna, N.D.G.K.D.P. Jayasingha
	*Performance of Mung Bean (Vigna radiate* L.) Treated with Seed Priming and Plant Growth Regulators under Moisture Stress** D.A. Shirani, G.A.R. Nisansala , N.G.S. Koshila, D.A.B.N. Gunarathne
	Formulation and Quality Assessment of Sweet Corn Enriched Yoghurt: A Functional Twist to Conventional Dairy R.A.A. Ranathunga, A.M.I.P. Alahakoon, D.M. Hunupolagama and H.M.A.D.B. Hennayake
	Identification of Maturity Indices and Optimal Harvesting Stage of Different Okra Varieties S.A.S.M. Kumari, S.A.L.C. Senanayaka , D.K.C. Sandanayake, W.P.A.L. Wickramanayaka,J.M.D.D.E. Jayamanna
	Effectiveness of Seed Coating and Seed Priming Techniques to Withstand Submergence Stress in Rice W.M.N.D. Gunathilaka, L.G.S. Madusanka, W.G.H.N. Premarathna, P.G.T. Dilshani
	*Optimizing BAP Concentration and Culture Duration for Genetically Stable Micropropagation of Pineapple (Ananas comosus* L.) cv. Mauritius** R.N.I. Perera, K.P.S. Sandaruwani, R.S.K. H. Sulakshana, A. P. Wijesinghe
	Mechanization, Climate, and Technical Efficiency in Potato Production in Sri Lanka K.G.C.D.B. Wijesinghe
	Application of Gamma Irradiation for Extension of Shelf Life of Banana Variety Gannoruwa Red M. Bulathkandage, J.D.C. Dinesh, R. Gunawardena, K.L.T. Deemantha
	Evaluation of Trellising Methods on Growth and Yield Performance of Heavy Fruit-Bearing Cucurbitaceous Crops J.M.D.D.E. Jayamanne, W.M.C.N Wijesinghe, H.D.S.N. Wijesooriya, H.P.M. Dasanthi
	*Physicochemical Characterization and Determination of Maturity Stage for Preparation of Bilin (Averrhoa bilimbi) Acidulant Cube* S.M.A.C.U. Senaratne, D.H.R.S. Rajapaksha, N.Y. Jayanath, K.W.P.D. Karandawala, N.Y.G.V.K. Nikaanga, K.B.G. Anusha Tharangani
	Assessing Price Response of Selected Vegetable Crops in Sri Lanka (1990-2023) K.G.C.D.B. Wijesinghe
	Spatio–Temporal Patterns in 1920 Farmer Advisory Service Usage: Four- Season Crop Based Study M.B. Weerasuriya, T.A. Kamiss, W.L.H. Peiris
	*Decoding Diversity: Morphological and SSR Marker-Based Evaluation of Pachchaperumal Traditional Rice (Oryza sativa) Conserved in Sri Lanka* D.G.C. Jeewani, N. Ganesharajah, N.M. Ubeysekara, K.A.D.H. Jayatissa, E.M.P.A.W. Nugapitiya, K.M.P.D. Karunarathna
	Residual Effects of Dolomite on Soil pH Amelioration and Nutrient Availability in Paddy Cultivation M.G.N. Rupasinghe, M.Y.P. Perera, P.M.H. Weerasinghe, A.R. Millawithanachchi, S. Umange, A. Weerasinghe
	*Grafting Solanum melongena* (Brinjal) Scions to Solanum torvum and Solanum indicum Root Stocks and Field Evaluation** D.P. Karunananda, R.L. Senanayake, I.P.H. Chandrasiri
	Screening of Tomato Lines with Diverse Origin for Genetical Resistance of Tomato Yellow Leaf Curl Disease H. M. V. T. Welegama, M. Y. Rafii, K. Ahmad, S. I. Ramlee, Y. Oladosu
	Sequential Chemical and Botanical Treatments for Managing Thrips and Whiteflies in Chilli M.A.R.A. Mandanayaka, C. Magamage, D.G.G.S. Dharmaratna, M.K.L.K. Rajapaksha,R.A.R.S. Nayanajeewa
	*Morphological Characterization and Duplicates Identification of Conserved Yard Long Bean (Vigna unguiculata* sp. sesquipedalis L.)** E.S.C. Edirisinghe, R.M.P.U.B. Kapukotuwa, J.P. Eeswara, D.M.N.J. Dhanapala, K.M.C.L. Kondasinghe, A.S.J. Danwaththa, M.M.F. Manzura
	*Identification of Correct Maturity Stage of Local Banana (Musa* spp.) Varieties (Gannoruwa Rath Kesel and Millawa Suwedel) Grown in Wet Zone of Sri Lanka** S.T. Baddegama, B.L.D.L.D. Wijesundera, T.L.D.C. Lakshani
	Social Media Platforms in Agricultural Extension: Perceptions of Extension Agents in Galle District, Sri Lanka D.A. Palihawadana, W.N. De Silva, K.N.N. Silva
	Rice Generation Advancement through Speed Breeding Technique to Accelerate Breeding Programmes while Shortening the Breeding Cycle K.G.P.B. Karunarathne, S. Sandamali, M. Munasinghe, H.M.A.I. Kumarasinghe, C. Benaragama, M.M.N. Damayanthi
	Determination of Pesticide Residues and Heavy Metals in Irrigated Water from Kalpitiya C. Magamage, P.A.M. Jayawardana, W.H.M.C.U. Waidyaratna, M.K.L.K. Rajapaksha, W.P.A.P. Dhanapala, W.R.W. Wimalasena

	Addressing Challenges through a User-Centered Crop Recordkeeping Solution for Smallholder Farmers in Sri Lanka H.R.U.T. Erabadupitiya, P.S. Wichkramathilaka, T.M.P.G.S.P. Thennakoon
	*Standardization of GR50 Dose (50% Growth Reduction Dose) of Gamma Irradiation for Local Genotypes in Luffa (Luffa acutangula* (L.) Roxb.); Radio Sensitivity Test** N.B.U. Dissanayaka, M.I.F. Shifa, W.D.G.P. Nilanthi, P.N.M.V. Pootan, E.M.N.T.M. Ekanayaka
	*The Effect of Pre Treatments on Hard Seed of Mung Bean (Vigna Radiata* L.) Var. MI 6** I.C.S. Edirimanna, G.T.N. Gunasekara , W.A.D. Dasanthi
	*Evaluation of varieties/ Lines and Seed Establishment Methods on Growth and Yield of Sesame (Sesamum indicum* L.) Under Organic Cultivation** I.C.S. Edirimanna, G.T.N. Gunasekara
	*Enhancing Waterlogging Tolerance in Onion (Allium cepa) through Osmopriming* I.H.M.C. Hitinayake, J. W.K. Samaranayake, M.G. Tharanga, W.M. Danushka, H.S.T.Hewage, S.P.J.M. Disanayake, V. Vishnukaran, W.M.S.S. Wijesundara, D.M.D. Disanayake
	*Effect of Different Growing Media and Fertigation Mixtures on Growth and Yield of Hybrid Chilli (Capsicum annum* L.)Grown under Protected Environmental Conditions** R.L. Senanayake, R.A.C.J. Perera , K.N. Kannangara, E.M.P.S. Ekanayake, D.K.M.G.B.P.Jayasundara
	Phenotyping of Soybean Breeding Lines for Drought Stress H.M.S.N. Herath, T.M.W.R.T.B. Dissanayake
	*First Evidence of the Absence of Xylella fastidiosa* (Wells et al., 1987) in Sri Lanka** M.H.A.D. Subhashini, D.D.E. Piyathissa, I.R.T. Athukorala, A.A.S. Yasodara, R.P. Gunasiri, A.A.P. Adikari, C. Leelarathna, P.A.P. Sisilakantha, P. Mallikaarachchi
	Challenges Faced by Fruit and Vegetable Farmers in Galle District P.S.R. Premarathna, J. Ponnamperuma Arachchi, R.A.K. Kalyani
	E-Agriculture as a Catalyst for Sustainable Farming and Rural Development: Evidence from North Western Sri Lanka P.S. Kumara, K.A.D. Sandaruwini, A.L. Sandika
	*Balancing Sustainability and Yield: Maize (Zea mays* L.) Response to Conservation and Conventional Agriculture in Dry Zone Soils** D.A. Shirani, N.A. Wimalasooriya, S.S.W. Samarasekara, U.A.J Rathnayake
	Assessment of Morphological and Yield Traits in Traditional Rice Cultivars of Sri Lanka K.Wijesena, D.A.G. Dissanayake, P.R.W. Kumari
	Toward Eco-Friendly Slug Management: Evaluating the Performance of Chemical Barrier Substances H. A. S. N. Hettiarachchi, B. K. Amarasekara, K. M. Rajapaksha
	Screening and Selection of High-Performing Stress-Tolerant Rice Genotypes Adapted to Sri Lankan Ecosystems R.M.N.H. Senanayake, M.G.S.Pathirana, K. R. D. Gunapala, S. R. Sarathchandra, B. M. K. Senarathna, K. M. A. S. Konara, J.W. E. I. Gunarathna, D. M. M. N. Dissanayake, N. Bamithra, W. G. Wijepala
	*Influence of Rainfall and Temperature on the Population Fluctuation of the Cassava Lace Bug (Vatiga illudens) (Hemiptera: Tingidae) Across Different Cassava Varieties* P. H Ranaweera, M.D.M. Nayomi, M. Siriwardana, Y.S. M. Yallarawa and J. Kannangara
	*Influence of Different Establishment Methods on Growth and Yield Responses of Irrigated Rice (Oryza sativa* L.) in Low Country Dry Zone of Sri Lanka** K.H.C.H. Kumara, M.H.U. Siriwardena

	Optimizing Sweet Potato Kenpi: Effect of Varieties, Frying Methods, and Packaging on Quality, Nutritional Properties and Shelf Life H.R.P. Fernando , P.K. Thudugala , B. Perumpuli , H.M.A.U. Hippola , J.H.M.R.C. Jayapathma, D.P. Karunananda, N.M.W.M. Bandara
	Nutritional Enhancement and Waste Reduction: Fortifying Bread with Avocado Seed Flour H.R.P. Fernando, G.A.W.M.R.V. Athapaththu, E. Jayawardane, H.M.A.U. Hippola, J.H.M.R.C.Jayapathma
	Molecular and Phenotypic Screening of Rice Restorer Lines for Resistance to Brown Plant Hopper (BPH) and Bacterial Leaf Blight (BLB) R.G.S. Iroshani, K.M.A.S. Kaluarachchi, H.M.A. Herath, H.A.N. Sachethana, N.V.A.Manjula, M.R.A.B. Madduma, S.R. Sarathchandra
	Toward Efficient Nitrogen Use in Rice Production: Practices and Technologies M.G.N. Rupasinghe, T.M.H. Weerasinghe, A.R. Millawithanachchi, M.Y.G. Perera
	Plant Growth Regulators in Sri Lanka: Importation Trends, Efficacy Evaluations and Recommendations T.K. Illangakoon, C.E.T.M.A.M. Ekanyake, J.M.N. P. Somarathne, H.M.C.A.B. Hellarawa,D.M.N.N. Dassanayake
	*Sweet Potato (Ipomoea batatas) Varietal Improvement through Hybridization* N.M.W.M. Bandara, E.M.N.D. Ekanayake, S.M.A.S. Sumathipala, W.D.M.R.R. Dissanayake,W.G.M.A. Thilakarathna

	Advanced Insect Netting: Red Netting as an Effective Thrips Deterrent P.H. Ranaweera, P.M.A.S. Bandara, Y.S.M.A.I. Kumari
	Drying it Right: Finding the Seed Drying Period to Reach 5% Moisture Content for Long-Term Conservation E.S.C. Edirisinghe, H.G.C.E. Dissanayake, W.C.P. Egodawatta, D.M.P.G.K.K. Dasanayake,B.M.U.H. Basnayake, T.M.T.G.U. Tennakoon
	*Locally Available Natural Enemies of Tuta absoluta* in the Up-Country Region of Sri Lanka: Potential for Sustainable Pest Management** H.A.S.N. Hettiarachchi, K. Amarasekara, K.M.Rajapaksha
	Fruit Fly Species Diversity in Gampaha District, Sri Lanka: Assessment Using Methyl Eugenol and Cue-Lure Pheromone Traps N.H.M.S. Chithrapala, D.M.S.K. Dissanayaka, W.N.A.U.N. Weerasinghe, T.C. Jayathilaka,S.M.A.O. Nadeeshani, J.A.Y.P. De Silva, W.M.U. Jayamali, L.H.P.S. Priyantha,S.T. Nishadini, H.A.S. Sithkelumi
	Screening of Selected Traditional Rice Varieties for Resistance to Rice Brown Planthopper (Nilaparvata lugens), Rice Gall Midge (Orseolia oryzae), and Rice Thrips (Stenchaetothrips biformis) under Greenhouse Conditions S.R. Sarathchandra, D.M.P.S. Dissanayake, D.M.O.K.B. Dissanayake, S.A.T.P. Senarath, S.H.A.S.N. Semasinghe, P.V. Liyanage, L.B.T. Dilanka, M.P.H.K. Jayaweera, K.S. Sandadevani
	In-vitro Efficacy of Selected Plant Extracts for Controlling Anthracnose Disease in Avocado S.S. Paththinige, D.M.K.W. Gunasekara, D.M.T.P. Dassanayake, J.A.D.T. Dananjani
	Farmers’ Perceptions of the Impact of Farmer Training Schools (FTS) on Livelihood Development under the Climate Smart Irrigated Agriculture Project (CSIAP) P.S. Kumara, P.M.N.M. Pathiraja, A.L. Sandika

	Do Farmers Acquire Agricultural Knowledge from Neighbors? The Case of Farmer Field Schools in Anuradhapura District A.M.B.N. Abeysinghe, M.H.B.P. Madana, B.K.S.M. Gowri
	*Development of Plant Regeneration Protocol through Male Bud Culture of Kolikuttu Banana (Musa* spp.) Var. Agra** D.A. Shirani , S.G.U. Chanaki, R.D.L.L.C. Jayaratne, S.D.S. Yapa, A.W. Gaminie
	*Diversity Analysis and Identification of Duplicates of Conserved Sweet Potato (Ipomoea batatas* (L.) Lam.) Accessions by Morphological Characterization** E.S.C. Edirisinghe, C.H. Denagamage, D.M.T.S. Dasanayake
	Use of Vegetation Indices Derived from Unmanned Aerial Vehicles (UAVs) Imagery for Monitoring Growth and Yield of Paddy and Identifying Weeds in Paddy Fields: A Case Study in Sri Lanka H.M.S. Herath, R.M.U.S. Bandara, P. Senadheera , R.F. Haffe, P.A.M. Krishanthi, A.A.U.M. Jayasinghe, N.M.S. Maheshika , D.A.J. Dissanayake, D.M.J.B. Senanayake, K.M.K.I. Rathnayake, S.H. Nuwan, P. De Silva , M. Ariyaratne, B. Marambe
	Effect of pH and Fat Levels on the Physico-chemical and Sensory Properties of Beetroot and Carrot-based Bread Spreads H.R.P. Fernando, B.M.D.S. Piyasena, M. Thenabadhu , C.D. Kodithuwakkuarachchi,T. Dharmathilake , U.L. Manage
	*Effect of Plant Density Spacing and Trellising System on Productivity of Yellow Passion Fruit (Passiflora edulis f. flavicarpa Sims)* I. Kalubowila, H.G.B. Darshana, W.M. Wimalasekara
	Evolution of Technical Efficiency in Paddy Production (2004-2019): Unravelling the Impact of Fertilizer Subsidy K.G.C.D.B. Wijesinghe
	Variation of Physico-chemical, Proximate Composition and Functional Properties of Flours of some Selected Artocarpus Species for Food Application M. Bulathkandage, R. Gunawardena, J.D.C. Dinesh , A.G.M. Perera, A.U. Gamage
	*Variability of Bioactive and some other Chemical Constituents in Soursop Fruits (Annona muricata* L.) Grown in Selected Potential Areas of Sri Lanka** M. Bulathkandage, W.M.T. Madhujith, J.P. Eeswara, R. Gunawardena, J.D.C. Dinesh ,A.G.M. Perera
	*A Promising Male Phenylbutanoid Attractant for Enhancing Mating Performance in Bactrocera dorsalis* (Hendel)** M.A.R.A. Mandanayake, Alvin. K.W. Hee
	Input Demand and Substitution Effects in Upcountry Vegetable Cultivation in Sri Lanka P.S.R. Premarathna, D.V.P. Prasada
	Improvement of Amphiphilic Properties of High and Low Amylose Rice Starch through Chemical and Physical Modification and its Functionality in an Emulsion System R.A.A. Ranathunga, P. Suwannaporn
	*Assessment of Advanced Breeding Lines of Rice (Oryza sativa* L.) for Nutritional and Nutraceutical Grain Quality Characteristics** S.P. Rebeira, D.V. Jayatilake, B.D.R. Prasantha, B.M.K. Senarathne Menike, C.H. Piyasiri,W.D.P. Weerasinghe, W.L.G. Samarasinghe

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Annals of the Sri Lanka Department of Agriculture

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2026

Agripreneurship through SMART AGRICULTURE

ASDA Annals 2026 - 2002

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	Awareness and Usage of Krushi Advisor Mobile Application Among Extension Officers: A Case Study from Southern Province D.M. Wewelwala, U.I. Dissanayeke, T.A. Kamiss
	Effect of Variety, Stage of Harvest and Breaking Pre-treatment on Quality Attributes of Tomato Paste C.K.D. Wellala, U.T. Udakanda, E.M.M.D. Ekanayake
	Diversity and Relationship of Leaf Characters on Yield Components of Selected Rice Varieties for Future Varietal Improvement L.C. Silva, Y.M.S.H.I.U. de Silva, J.M.S.V. Bandara, W.J. Nimanthika, H.R.M.C. Rathnayaka
	*Evaluation of Grain Quality Attributes of Imported Aromatic Rice (Oryza sativa L.) Samples* B.M.K. Senarathne, W.M.C.D. Wanisekara, R.G.N. Rajapaksha, R.A.P.K. Wijerathna, D.M.G.H. Tennakoon
	Exploring Farmer Perspectives and Practices: A Comparative Study of Sri Lankan Good Agricultural Practices (SL-GAP) in Certified and Non-Certified Farms P.S.R. Premarathna, R.A.K. Kalyani, D.S. Rathnasinghe
	Assessment of Genetic Diversity of Sesame using Quantitative Agro-morphological Characteristics U.I.P. Perera, D.L.C.A.K. Weerasinghe, A.C. Vidanapathirana
	Effectiveness of WhatsApp® Groups for Agricultural Knowledge and Information Sharing: A Case Study on Asi Disi Krushi Hawla I.P. Liyanage , K.N.N. Silva, T.A. Kamiss , W.A. Nadeesha, P.S. Hewapathirana, P.G.R. Namali
	Technology Adoption in Maize Production in Monaragala District N.P. Liyanage, V.G.S. Nilantha, J.W.L. Surangi
	Estimation of Plant Nutrient Uptake of Selected Maize Varieties at Different Fertilizer Rates under Dry Zone Conditions in Sri Lanka A.W.S. Lakmali, M.A.P.W.K. Malaviarachchi, D.M.D.Dissanayake, S.R.G.H.S.M. Jayarathna
	“Dakshina Govi Sahana Sevaya”: An ICT-Based Agricultural Extension Tool for Cost-Effective and Quality Farm Advisory Services in Galle District S.H. Kahingala, K.P.P. Kopiyawattage
	Cassava Intercropping: Boosting Yields and Diversifying Farm Income H.M.P.T.K. Hettigedara, J.K. Galabada, H.A.I. Depawela
	Potential of Slug Attractants for Managing Slugs under Up-Country Wet Zone Conditions H.A.S.N. Hettiarachchi, M.A. Kumarage, R.P.B. Dunuwila, K.M. Rajapaksha
	Improving Longevity and Storage Life of Groundnut Seeds through the Use of Packaging Materials and CaCl2 W.M.N.D. Gunathilaka, T.S. Hewawitharana
	*Screening Groundnut Genetic Materials for Resistance to Stem Rot Disease Caused by Sclerotium rolfsii* Sacc.** M.T. Gunasena, M.S. Heshani, S. Kumara
	Identification of the Most Heat Tolerant Fruit Fly Species Infesting Mangoes through Hot Water Immersion Test N.H.M.S. Chithrapala, I.K. Warshamana, D.M.S.K. Dissanayaka , S.M.A.O. Nadeeshani,J.A.Y.P. De Silva, R.P.D. Randunu , S.T. Nishadini, W.M.U. Jayamali, L.H.P.S. Priyantha,W.L.S. Priyangika, H.A.A. Sithkalumi, L.C. Hewage
	Grafting Radish Rootstock to Trigger Non-Vernalization Flowering in Cabbage P.D. Abeytilakarathna, S.M.A. Samanmali

	Najas minor (Family: Najadaceae): A Newly-Emerging Invasive Aquatic Weed Species in Paddy Fields in the Southern Province of Sri Lanka R.M.U.S. Bandara, H.M.S. Herath, Y.M.S.H.I.U. De Silva, J.P. Arachchi ,U.A.K.S. Udawela, D. Gunawardana, M.H.U. Siriwardana, E.L.A. Jeewantha, N. Wijesinghe,W.M. Gunadasa
	Impact of Weather Parameters on Population Dynamics of Four Major White Grub Species in Nuwara-Eliya Region in Sri Lanka H.A.S.N. Hettiarachchi, K. Pushpanjie, M.A. Kumarage, R.P.B. Dunuwila, K.M. Rajapaksha
	*Study on Hybrid Seed Production of Bitter gourd (Momordica charantia) in Poly-tunnel and Open-field Conditions* H.M.P.S. Kumari, P.U. Nisansala, E.P. Wijewardhana, T.L.C. Kusalani
	Assessment of the Mineralization Rate of Various Green Manures Under Up-Country Wet Zone Conditions M.A.P. Mayakaduwa, W.R.N.M. Gunawardhana, K.R.S.C.B. Kahawandala
	*Management of White Mold Disease of Cabbage (Sclerotinia sclerotiorum) Using Bio-control Agents* K. Pushpanjie, K.P.H. Chathuranga, A.S. Jayasekera, W.M.A.S. Bandara
	Optimizing Soil Conservation and Profit Margins in Fruit and Vegetable Farming through Inter-cropping Techniques R.K.G.C. Rahubaddh, P.G.K. Jayatissa, H.K. Kadupitiya, A.G. Chandrapala, R.A.R. Swarnalatha, M.D. Kumarage
	Effect of β–caryophyllene Consumption on Mating Performance of Male Bactrocera dorsalis (Diptera: Tephritidae) P.H. Ranaweera, Alvin Kah-Wei Hee
	Adoption of Recommended Technologies in Mushroom Production: A Case Study in Kegalle District K.A.S. Thilakarathna , E.P. Serrano, R.D.T. Baconguis, E.G. Centeno, K.G.M. Shamindha,W.R.W.M.S.N.P. Weerakoon, M.A.I. Dayanandha, M.D.M. Kumari, R.P.N.L. Rajapaksha
	Limitations Faced by Farm Women in Participating Agriculture Extension Programs: A Case Study in Pulasthigama Agriculture Instructor (AI) Range K.A.S. Thilakarathne, E.S. Warawaththa, K.P.P. Kopiyawattage, U.I. Dissanayake,W.R.W.M.S.N.P. Weerakoon, P.W.R.C. Paragahagoda, W.A.K.D.R. Bandulasena,G.G. Madushani , H.W.P.S. Gunathilaka

	Formulation of Botanical Extracts as Nanoemulsions:Towards A Sustainable Pest Management in Agriculture –A Review T.K.A.I. Hadji, N.S Senanayake, A. Dharmasena
	Identification of Gall Midge (Orseolia oryzae) Resistant Rice Germplasms in Sri Lanka W.A.R. Dhammika, D.M.J.B. Senanayake, S.R. Sarathchandra, H.M.Y.G.N.K. Herath,M.R.A.B. Madduma, D.M.O.K.B. Dissanayake, G.R. Fernando, N.S. Thilakarathne, K.A.K.Wijesena, A.J.D. Perera
	Assessing the Effectiveness of the Agricultural Exhibition and Trade Fair Conducted by the DOA to Promote Local Ya and Tuber Crops in Urban and Semi-Urban Areas: An Action Research Approach K.A.S. Thilakarathna, E.S. Warawaththa, H.M.N.S. Harankahawa, G.G. Madushani, J.R.Sudasinghe, U.I. Dissanayeke
	Mapping Carbon Sequestration Potential in Sri Lanka Using R-based Modelling Approach A.U. Iddawela, H.M.A.H. Uduwerella, H.K. Kadupitiya
	Occupational Exposure to Highly Hazardous Pesticide Formulations Causes Poisoning Incidents among Farmers:Survey Outcome in Selected Areas in Anuradhapura,Kurunegala and Puttalam Districts J.P. Marasinghe, A.M.S.M. Abeysinghe, A.P.D.P. Vimalasiri, J.A. Sumith
	Spatial and Temporal Rainfall Trends Analysis in the Yala and Maha Seasons in Sri Lanka from 1994 to 2020 R.K.G.C. Rahubaddhe, H.K. Kadupitiya
	Evaluation of Double-modified High Amylose Rice Starch and Applications in Food Models R.A.A. Ranathunga, P. Suwannaporn
	Estimation of Genetic Parameters and Path Analysis on Yield and Yield-Related Characteristics of Ridged Gourd(Luffa acutangula L. Roxb.) N.B.U. Dissanayaka, P. Malathy, K. Hettiarachchi, W.D.G.P. Nilanthi, T. Ekanayaka,W.M.K.W.S.S. Kotandeniya, P.N.M.V. Pootan
	Enhancing Conventional Freezing: Assessing Pre-treatments for Optimal Preservation of Selected Vegetables S.M.A.C.U. Senarathne, K.W.P.D. Karandawala, H.M.N.D.B. Hennayaka, C.D.Kodithuwakkuarachchi, N.Y.G.V.K. Nikaanga, D.K. Wijerathne
	Effect of Different Ethylene-scavenging Packaging on Extending Shelf Life and Maintaining Fruit Quality of Guava(Psidium guajava L.) H.R.P. Fernando,C.D. Kodithuwakkuarachchi, H.N.N. Hewawasam, H.A.P.W.Hettiarachchi
	Assessment of Soil Erosion and Deposition Using Fallout Radionuclide Technique under Different Land Uses and Its Relationship with Soil Chemical Properties in the Low Country Dry and Intermediate Zones of Sri Lanka A.G. Chandrapala, K.M.A. Kendaragama, S.K. Weththasinghe, C. Dissanayake
	A Novel Low-Cost Method for Liquid Bacterial Biofertilizer Production T.G.I. Sandamali, D.M.J.B. Senanayake, S.T. Munasinghe, M.P. Weerasinghe, K.G.N.Sureshika, D.K.T.S. Kumara, W.P.S. De Silva
	Rambutan (Nephelium lappaceum L.) Fruit Peel: Possibility of Extraction and Incorporation of the Microencapsulated Crude Extract in Product Development S.M.A.C.U. Senarathne, S.M.V.G.A.P. Samarakoon, D.C.K. Illeperuma, D.K. Wijerathne,K.W.P.D. Karandawala, H.M.N.D.B. Hennayaka, N.Y.G.V.K. Nikaanga, C.D.Kodithuwakkuarachchi
	Quality Comparison of Vine-ripe and Postharvest – Ripened Seven Tomato Varieties Harvested at Different Stages of Maturities C.K.D. Wellala, M.R.A. Sha, E.M.M.D. Ekanayake, H.M.V.T. Welegama
	R-Modelling-Based Quantile Regression Approach for Spatial Prediction and Mapping Soil Properties in Sri Lanka H.M.A.H. Uduwerella, A.U. Iddawela, H.K. Kadupitiya
	Morphological and Molecular Characterization of Ex-situ Conserved Kaluheenati (Oryza sativa L.) Traditional Rice Accessions in Sri Lanka D.G.C. Jeewani, K.M.A.N. Kulathunga, N.M. Ubeysekara, K.G.C.N. Jayarathne
	Influence of Combine Treatments on Enzymatic Browning,Microbial Growth and Sensory Attributes of TJC Mango Pulp H.R.P. Fernando, M.H.F. Rukshana, C.D. Kodithuwakkuarachchi, N.W.I. Jayawardane,T. Dharmathilake, U.L. Manage
	Relationship between the Indian Ocean Dipole (IOD) and Paddy Cultivation during the Maha Season in Sri Lanka A.B. Abeysekera, B.V.R. Punyawardena, B. Marambe, I.M.S.P. Jayawardena,T. Sivananthawerl
	An Alternative Planting Geometry to Facilitate Chemical Control of Fall Armyworm (Spodoptera frugiperda) in Maize,and Its Impact on Growth and Yield M.A.P.W.K. Malaviarachchi1, K.N.C. Gunawardana1, S. Thrikawala, S.R.G.H.S.M.Jayarathna, H.G.P.B. Darshana
	Exploring and Mapping of Potential Areas for Cultivating Fruit Crops in Sri Lanka A.G. Chandrapala, S.M.V. Pushpakumara, H.K. Kadupitiya, M.A.K. Munasinghe

	Optimum Spacing for Newly Released Hybrid Capsicum(Capsicum annum L.) Variety ‘Prarthana’ K.A.D.S.D. Kahandawa Arachchi, B.M.A.U.K. Bandara, C.E.T.M.A.M. Ekanayake, E.W.M.A.K.Ekanayake, A.R. Jayasena
	Assessment of Profitability and Constraints and Suggestions to Improve Watermelon Production in Ampara and Monaragala Districts S. Mathangaweera, I.G.P.N. Wickramasinghe, R.R.M.P.M. Bambaradeniya, S.M.J.M.C.Abeyratne, H.M.S.P. Herath
	Economic Analysis of Potato Production in Jaffna District S. Mathangaweera, R.R.M.P.M. Bambaradeniya, I.G.P.N. Wickramasinghe,S.M.J.M.C. Abeyratne, T. Kugendran
	Study on Land Preparation Method, Mulching and Organic Manure Application on Low-Cost Organic Cultivation of Tomato H.M.P.T.K. Hettigedara , H.A.I.K. Depawela
	Detection of Plant Parasitic Nematodes (PPN) Associated with Locally Produced Organic Fertilizer I.K. Warshamana1, D.M.S.K. Dissanayaka1, W.M.U. Jayamali1, A.S.Y.P. Ranasinghe,W.A.R.T. Wickramaarachchi
	Evaluation of Different Priming Techniques on Seed Dormancy, Germination and Vigor of Groundnut (Arachis hypogaea L.) Variety Lanka Jumbo I.C.S. Edirimanna, K.D.C.D. Priyadarshani, N.G.S. Koshila, L.R.D.S. Bandara
	Efficacy of the Anti-Termite Barrier – TRITHOR® to Control Termites in Pre-constructing Buildings in Sri Lanka H.H.M.N.K. Hapukotuwa, M.A.G.C.N. Premarathne, M.S.K.K. Perera, K.M.D.W.P. Nishantha
	Readiness of Paddy Farmers to Use Phone-based Digital Tools for Extension Advice: A Case Study from Galle District D.A. Palihawadana, W.N. De Silva, K.N.N. Silva
	Effectiveness of Defense Inducers (Salicylic Acid and Jasmonic Acid) against Viral Disease Complex of Pumpkin W.M.S.K. Weerasinghe, B.A.S.N. Lakmali, M.A.I. Ishari, M.S.N. Premaratne
	Technology for Pumpkin (Cucurbita maxima) and Pineapple(Ananas comosus) Incorporated Fruit Leather D.N. Hettiarachchi, P.M.G.C.B. Wijerathna, C.A.K. Dissanayake, D.L.C.N Hitigedara,S.M.K. Rathnayake, H.M.D.K. Jayarathna, R.A.Wijerathna
	A New Leaf Spot Disease of Salad Cucumber (Cucumis sativus L.): Identification and In-vitro Screening of Fungicides against Causative Pathogen W.A.P.G. Weeraratne, W.M.S.D.K. Wijerathne, D.M.K.K. Dissanayakea
	Variability in Fatty Acid Profile of Advanced Peanut Breeding Lines Available in Sri Lanka Y.P.J. Amarasinghe, D.G.C. Jeewani, G. Wijesinghe, R.W. Pushpakumara
	In vitro Efficacy of Selected Plant Extracts against Colletotrichum musae, Causing Anthracnose Disease in Banana S.S. Paththinige, D.M.K.W. Gunasekara, D.M.T.P. Dassanayake, Y.B.K.T. Lakshani
	Assessments of the Impact of Institutional Quality on Agriculture Productivity: A Global Perspective N.W.V.U. Shashikala1, N.S. Cooray
	Successful Rearing of Fruit Fly (Bactrocera dorsalis) on Liquid Brew Yeast Media I.K. Warshamana, R.P.D. Randunu, J.A.Y.P. De Silva, S.T. Nishadini, D.M.S.K.Dissanayaka, W.M.U. Jayamali, H.A.A. Sithkalumi, W.A.R.T. Wickramaarachchi,U.G.A.I. Sirisena
	Enhancing F1 Seed Yield in Chilli (Capsicum annuum L.) under Dry Zone Conditions in Sri Lanka through Emasculation,Optimal Pollination Timing for Maximum Stigma Receptivity and Pollen Storage H.M.S.N. Herath, H.M.S. Bandara, W.G. Wijepala
	First Record of Boeremia spp. Causal Agent of Cabbage Leaf Spot Disease in the Upcountry Wet Zone of Sri Lanka C. Ranasinghe, K.G.D.T.H. Dhananjaya, M.L.M.C. Dissanayaka, Y.A.P.K. Dayasena,K.P.H. Chathuranga