Research Publications :
  1. Medagoda, I., T. M. K. Tennakoon, W.M.C.J.K. Chandrarathna and N.D.C.P Nakandala. 2005. Studies on floral biology and pollination behaviour of Durian(Durio zibethinus J. Mur) Annals of the Sri Lanka Department of Agriculture, Department of Agriculture, Peradeniya, Sri Lanka. Vol. 7
  2. Medagoda, I., and M.D.S. Chandrasekara. 2005. Varietal development in papaya (Carica papaya L.) through conventional and heterosis breeding. Sri Lanka Association for the Advancement of Science.  Proceeding of the 61st Annual Session. 
  3. Medagoda, I., T. M. S. K. Tennakoon and M. A. Roonage. 2004.  Effect of irrigation methods and fertigation on growth and yield of papaya (Carica papaya L.) Proceedings: CARP Competitive Contract Research Grants ProgrammeSri Lanka  Agricultural Research Policy, ISBN-955-9224-14-X
  4.  Warshamana, I.K., I. Medagoda. 2003. Effect of storage conditions on the germination of papaya (Carica papaya L.) Annals of the Sri Lanka Department of Agriculture, Department of Agriculture, Peradeniya, Sri Lanka. Vol. 5
  5. Medagoda, I., SAM Punchikumariharmy, P.M. Bandaranayake. 2002. Varietal evaluation and rehabilitation studies on Rambutan (Nephelium lappaceum L.).  Annals of the Sri Lanka Department of Agriculture.  Vol.4.
  6. Medagoda, I., T.M.S.K. Tennakoon. 2002.  Preliminary evaluation of banana (Musa spp.) introductions in Sri Lanka.  Sri Lanka Association for the Advancement of Science.  Proceeding of the 58th Annual Session.  pp. 82.
  7. Medagoda, I, T.M..K. Tennakoon. 2001. Some studies on exploration, evaluation and conservation  of jackfruit (Artocarpus heterophyllus Lam.) in Sri Lanka. Annals of the Sri Lanka Department of Agriculture, Dept of Agriculture, Peradeniya, Sri Lanka. Vol. 3.
  8. Medagoda, I. (1999), Breeding and propagation techniques for developing papaya varieties in Sri Lanka. Annals of the Sri Lanka Department of Agriculture, Dept of  Agriculture, Peradeniya, Sri Lanka. Vol. 1
  9. Medagoda, I. 1999. Genetic variability and seasonality of fruiting of durian (Durio zebathinusJ. Murr) in Sri Lanka. Fruit for the future. Proceeding of the 10th National  workshop on Multi purpose Trees (MPTS), Sri Lanka (Vol. 1).
  10. Medagoda, I., I.J. De Zoysa, S, Sivasubramanium. 1998.  Survey of Papaya Viruses in Sri Lanka. Sri Lanka Association For the Advancement of Science 54th Annual Session, Part I.
  11. Medagoda, I. 1998. A new papaya (Carica papaya L.) variety with desirable characters for local & export market. Sri Lanka Association for the Advancement   of Science, 54th  Annual Session, Part I.
  12. Medagoda, I. 1998. Evaluation of mango variety Malwana amba (under ground). Sri Lanka Association For the Advancement of Science, 54th Annual Session, Part I.
  13. Medagoda, I., T.M.K Thilakarathna. 1997. Evaluation of Carambola,(Averrhoa  carambola L.) varieties in Sri Lanka.  Sri Lanka Association for the Advancement of Science.  Proceeding of the 53rdth Annual Session. Part 1.
  14. Medagoda, I. 1996.  Studies on Seasonal and Genetic variation during Clonal Selection  in Durian (Durio zebathinus) Association For the Advancement of Science, 52nd Annual Session, Part I.
  15. Medagoda, I. 1995. Effect of storage conditions on the germination of papaya (Carica papaya L) seeds, Sri Lanka Association for the advancement of science, 51th Annual Section, Part 1, pp 81.
  16. Medagoda, I. 1994.  Preliminary Aassessment of Rambutan Cultivars in Sri Lanka, Sri  Lanka Association for the advancement of science, 50th Annual Section, Part 1, pp 40.
  17. Medagoda, I., S. Balasubramanium. 1988. Identification of wild and cultivated varieties of passiflora in Sri Lanka and screening of these plants for cyanogenic glycosides. Tropical Agriculturist, 144: pp 135- 145   

PUBLICATION IN NON - REFEREED JOURNALS AND BULLETINS

  1. Medagoda, I. 2005. Mango species and cultivars in Sri Lanka and future needs.  Accepted for publication in Krushi 
  2. Medagoda, I. 2005. Performance of some banana (Musa spp.) introductions in comparison with the local banana cultivars. Accepted for publication in Krushi 
  3. Medagoda, I. 2003.  Distribution, Diversity, Conservation and Evaluation of jackfruit. Agricultural Research News, CARP (Vol.3 No. 4).
  4. Medagoda, I. (2003).  Growth, Flowering and Yield Performances of Papaya (Carica papaya L.) Under Drip and Basin Irrigation. Agricultural Research News, CARP, Vol.3 No. 4  April- June
  5.  Medagoda, I. 2003.  Seed production of papaya "Saubhagya" Seed Producers  Association of Sri Lanka Vol. 1 No. 4.
  6.  Medagoda, I. 2002. Carambol a new fruit  "Govikam Sagarawa". Vol 40. No.1.
  7. Medagoda, I.  and  T.M.S.K. Thennakoon. 2002.   Prevent powdery Mildew Disease in Rambutan.  Govikam Sagarawa.  Vol 40 No. 2.
  8. Medagoda, I. 2002.  Good quality hard flesh type Durian Variety, Ambethenne Technical Newsletter, Department of Agriculture.  Vol. 6 No.2. 
  9. Heenkenda, H.M.S. and I. Medagoda. 2002. Conservation and utilization of fruits genetic resources in Sri Lanka, PGRC
  10. Medagoda, I. 1997. Papaya Seed Production.Technical Newsletter, Department of Agriculture. Vol. 2, No. 7, pp 3-4
  11. Medagoda, I. 1997. Dwarf Ambaralla. Govikam Sagarawa, No 38
  12. Medagoda, I. 1997. Promising papaya varieties.Technical Newsletter, Department of  Agriculture Vol. 2, No. 4  
  13. Medagoda, I, I.J. De Zoysa. 1997. Papaya Ring Spot Virus Disease. Technical Newsletter, Department of Agriculture Vol. 2, No. 5, pp 2
  14. Medagoda, I. 1997. Rathna the first papaya variety of Sri Lanka , Technical Newsletter, Department of Agriculture Vol. 3, No. 3
  15. Medagoda, I. (1996), Descriptors used in the identification of the varieties of vegetables and root and tuber crops. Annual Research Conference Research Division, Dept. of Agriculture 
  16. Medagoda, I, B. Hemachandra, M. Bandaranayka. 1996. Performance of Macadamia in Sri Lanka. Technical Newsletter, Department of Agriculture.Vol. 3, No. 2, pp 81
  17. Medagoda, I.1996. New Papaya. Govi Janatha, Vol. 1, No. 8.  
  18. Medagoda, I,. I. S. Padmasiri.  1994. Cultivation of Rambutan. Govikam  Sangarava,  Vol. 37, No. 1, pp 9-14
  19. Medagoda, I. 1994. Hope for papaw growers Technical Information Bulletin, DOA, Vol. 1, No. 1
  20. Medagoda, I. 1994.  Waraka type jackfruit varieties.  Technical Newsletter, Department of Agriculture, Vol. 1, No. 1
  21. Medagoda, I. 1994. Vegetative propagation of papaya through budding and grafting.  Technical Newsletter, Department of Agriculture, Vol. 1, No. 1
  22. Medagoda, I. 1994. Polyebbroyony in citrus cultivars in Sri Lanka..  Krushi, Vol. 14, No. 3-4.
  23. Medagoda, I. 1994. A survey on distribution of papaya virus in Sri Lanka, Technical Newsletter, Department of Agriculture, Vol. 1 , No 1
  24. Medagoda, I, S.M.A. Punchi Kumari. 1993. Increased production of passion fruit through vegetative propagation. Krushi, 13: No. 1-2,  pp. 43-46
  25. Medagoda, I , B.V.R. Punyawardena.  Influence of Dry/Wet conditions on flower initation of Rambutan (Nephelium lappaccium L.) Accepted publishing in  “Krushi”
  26. Medagoda, I. 1985. Seed rules and charactors of vegetables and root and tuber  Crops, Hand Book (part III) , Seed Certification Service, Dept. of Agriculture Seed rules and crops.
  27. Medagoda, I. 1984. Selection of mango root stock in the nursery stage. Krushi, 6: No. 3,  pp. 22-27
  28. Medagoda, I. 1983. Studies on the Genus Passiflora in Sri Lanka, Krushi, 6: No. 1pp. 1-3
REPORTS (NATIONAL AND INTERNATIONAL)
  1. Medagoda, I. (2004-2007) Council for Agricultural Research Policy (CARP) project on Investigation of seed germinabilaty and the success of propagation techniques using varieties having high yield quality nuts of Macadamia. 12/654/492
  2. Medagoda, I. (2000).    Report on third country expert visit to Ghana on tropical  fruit cultivation (JICA funded).
  3. Medagoda, I., S.D.G. Jayawardena. (1997), Status Report on Genetic Resources of  Jackfruit in Sri Lanka. International Plant Genetic Resources Institute (IPGRI)  Project No. B06.
  4. Medagoda, I., S.D.G. Jayawardena. (1997), Status Report on genetic resources of citrus in Sri Lank . International Plant Genetic Resources Institute PGRI).Project No. B06.
  5. Medagoda, I., S.D.G. Jayawardena. (1997), Status Report on genetic resources of  mango in Sri Lanka. . International Plant Genetic Resources Institute, PGRI). Project No. B06.
  6. Medagoda, I. (1997), Information gathering on plant genetic resources, propagation  and production, post-harvest, socio economic, marketing and uses of jackfruit. Published in Under Utilized Tropical Fruit in Asia Net Work.
  7. Medagoda, I. (1990) (Chief investigator) Council for Agricultural Research Policy (CARP) project on Papaya varietal improvement with special emphasis to Papaya Ringspot Virus. Project number 12/90/71.
  8. Medagoda, I. (1999 – 2002) (Chief investigator) Council for Agricultural Research Policy (CARP) project – Field evaluation of tissue cultured and seedlings of Papaya in two agro ecological regions with different irrigation methods.Project no. 12/316/311

BOOKLETS / CDs/ CONTRIBUTIONS (LOCAL AND INTERNATIONAL)

  1. Medagoda, I. (2005). Papaya Cultivation CD rom.
  2. Medagoda, I. (2005). Jack Fruit  Cultivation CD rom.
  3. Medagoda, I. (2003), Descriptors for Rambutann (Nephelium lappaccium L.), International Plant Genetic Resources Institute (IPGRI), Rome, Italy. ISBN 92-;9043-586-0 (contributor)
  4. Medagoda, I. (2000), Descriptors for Jackfruit ( Artocarpus heterophyllus), International  Plant         Genetic Resources Institute (IPGRI), Rome, Itally.ISBN 92-90423-450-3 (contributor).
  5. Medagoda, I. (2005), A booklet on Jackfruit cultivation.  
  6. Department of Agriculture at the turn of the century. (2000). Fruits. Department of Agriculture, Ministry of Agriculture and Land, Sri Lanka (Contributor for fruit information). (6): pp 45-69.
  7. Ministry of agriculture and Land, (1998).  Year round production of vegetables and fruits in Sri Lanka.  Council for Agriculture Research Policy. (Contributor for fruit information) 
  8. Rambutan (1996) - booklet, Publication of Department of Agriculture in the Ministry of Agriculture and Land, Department of Agriculture.
  9. Dwarf Amberella (1998) - booklet, Publication of Department of Agriculture in the Ministry of Agriculture and Land.
  10. Tropical Fruits of Sri Lanka (1997). Publication of Department of Agriculture in the Ministry of Agriculture and Land.
  11. Vegetable seed rules and crops -Seed Certification Service (SCS) (Hand Book, Part III)

VARIETIES RELEASED

- Mango - Variety Malwana amba (1996)- Also developed mother plant orchard at Wariyapola and Vanathvillu
- Papaya -Variety Rathna (1997)  - Production of breeder seeds annually
- Carambola - Variety Honey sweet (1999) - Developed mother plant orchard at Gannoruwa
- Jackfruit - Varieties Kothmale,Maharagama and Father Long (1999) - Developed mother plant orchards at Eraminigolla, Gannoruwa and Ambathanna Farm
- Durian  - Variety Ambathanna  (2002)  -Developed mother plant orchard at Gannoruwa and Ambathanna
- Out of sixteen cultivars recommended Malwana Rambutan for large scale cultivation

NEWS PAPER ARTICLES
  1. Medagoda, I. (1998), Rathna papaya for export market. The Lankadeepa - Sandalla, -  Gahaka Kolaka Sevum Balum.
  2. Medagoda, I. (1998), Honey sweet carambola  fruit as well as vegetable. The Lankadeepa - Sandalla, - Gahaka Kolaka Sevum Balum.
  3. Medagoda, I. (1998), Malwana special rambutan for export market. The Lankadeepa -  Sandalla, - Gahaka Kolaka Sevum Balum.
  4. Medagoda, I. (1998), Good quality, hard flesh type (waraka) of jackfruit cultivars for fruit as well as vegetable (Kothmale, Maharagama, Kothmale). The Lankadeepa -  Sandalla, - Gahaka Kolaka Sevum Balum.
  5. Medagoda, I., Y.M.S.B. Uduwela (1999), Rain reduce rambutan returns, Supplement of the Ministry of Agriculture.
  6. Medagoda, I., T.M.S.K.Tennakoon (2001). Preventive and control measures of  rambutan powdery mildew. The Dinamina - Aswenna
  7. Medagoda, I., Seed production of papaya.  Lankadeepa 09.06.2003.

    

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