Viharnaa Raveenthira
  • Lecturer
  • B.Sc. (Hons) in Agriculture (Eastern, SL), PG Dip. in Agric Extension (Peradeniya, SL), PG Dip. in Education (OUSL)
  • rviharnaa@tech.jfn.ac.lk
  • Member of Jaffna Science Association(JSA)
Google Linkedin Link
  • Crop production
  • Crop physiology
  • Organic farming
  • Vermitechnology
  • Sustainable Agriculture
  • Floriculture and Landscape
  • Basic biology
  • Farm production systems
  • Floricultural technology
  • Urban gardening
  • Agronomy of underutilized crops
  • Vermitechnology
  • Agroforestry techniques
  • Organizational Management and Landscape and architectural design

Proceedings

  1. Viharnaa, R. and Thivahary, G., Adoption and impact of Natural Farming Practices in Batticaloa district, First Virtual Annual Research Session (FARS 2020), 2nd of Dec. 2020, Faculty of Applied Science,Vavuniya Campus
  2. Viharnaa, R. and Thivahary, G., A study on factors shaping net profit of groundnut farmers in Ampara district, Sri Lanka, Accepted in UCIARS Symposium 2020, Institute for Agro-Technology and Rural Sciences, University of Colombo, Hambantota, Sri Lanka.
  3. Viharnaa, R., Nishanthi, S. and Seran, T.H., Combined usage of organic and inorganic potassium on pod characteristics of cowpea cv.waruni (JUICE 2016), 12th & 13th August 2016, University of Jaffna, Sri Lanka.
  4. Tharani, S.A., Harris, K.D., Geretharan, T., Paskaran, A. and Viharnaa, R. Effect of different potting media on growth and yield of Capsicum. International Conference (ICE 2014), 4th & 5th Dec. 2014, Eastern University, Sri Lanka
  5. Viharnaa, R. and Thivahary, G. Information Flow in the Eastern University, Sri Lanka. Proceedings of the Fourth International Symposium of South Eastern University of Sri Lanka, 02nd & 03rd August 2014.
  6. Viharnaa Selvarajah and Thivahary Geretharan, Information utilization pattern of coconut farmers in Batticaloa district, International Symposium on Agriculture and Environment, Ruhuna University of Sri Lanka.
  7. Viharnaa Selvarajah and Thivahary Geretharan, Information utilization for weedicide usage among the paddy farmers from Eravur-pattu Divisional Secretariat division of Batticaloa District, 2nd Annual Science Research Session, South Eastern University of Sri Lanka.
  8. Viharnaa Selvarajah and Thivahary Geretharan, Socio-economic status of smallholder paddy farmers in the Batticaloa district, 2nd International Conference on Social Sciences, University of Kelaniya, Sri Lanka.
  9. Viharnaa. S and Thivahary Geretharan, Factors affecting the herbicide purchasing decision of paddy farmers in Batticaloa District, published in International Conference, Eastern University of Sri Lanka.
  10. Viharnaa. S and Thivahary Geretharan, Adoption of agronomic practices by smallholder rice farmers in Ampara district, published in Annual International Symposium, General Sir Kotelawala Defence University of Sri Lanka.
  11. Viharnaa. S.,  Seran, T.H., and Hassaan, A.M., Dry matter content of groundnut (Arachis hypogaea) fertilized with liquid organic fertilizer, published in 3rd International Symposium, South Eastern University of Sri Lanka.
  12. Viharnaa. S and Thivahary Geretharan, Factors that influence the adoption of improved coconut management practices in Batticaloa district: A Logit Model Approach, published in 3rd International Symposium, South Eastern University of Sri Lanka.
  13. Viharnaa. S, T. H. Seran and Piraveena. S, Root-shoot ratios of soybean (Glycine max) plants as affected by organic manure and rock phosphate, 4th International Symposium, Sabaragamuwa University of Sri Lanka.
  14. Viharnaa. S and T. H. Seran, Pod formation of okra as affected by organic manure application, 4th International Symposium, Sabaragamuwa University of Sri Lanka.
  15. Viharnaa. S and T. H. Seran, Impact of cow and poultry manures on seed yield of okra in sandy regosol, published in 1st Annual Science Research Session, South Eastern University of Sri Lanka.
  16. Viharnaa. S and T. H. Seran, Effect of plant spacing on fruit yield of okra (Abelmoschus esculentus), published in 10th Annual Research Session, Eastern University of Sri Lanka.
  17. Pavithra. P, Selvaskanthan. S, Raveenthira.V and Sivachandiran.S, Effect of different
    dehydration techniques for preservation of selected garden flowers, published in First NABS
    International Conference on 26th and 28th, August 2021, Annamalai University,
    Chidambaram, Tamil Nadu, India.
  18. Viharnaa.R, Dayananda.A.N.P.E. and Pakeeratharan.K, The effect of different
    concentration of vermin tea on morphophysiological characteristics of Amaranthus viridis,
    published in First NABS International Conference on 26th and 28th, August 2021,
    Annamalai University, Chidambaram, Tamil Nadu, India.
  19. Pavithra, P., Selvaskanthan, S., Raveenthira, V. and Sivachandiran, S. (2022).
    Standardization of dehydration techniques for preservation of selected ornamental foliage,
    9th Ruhuna International Science and Technology Conference, University of Ruhuna,
    Matara, Sri Lanka, held on 19th of January,2022
  20. Fathimasahna, M.S., Selvaskanthan, S., Raveenthira,V and Sivachandiran, S., (2022), Effect
    of different anti-senescence chemicals and packaging materials on post-harvest shelf life of
    Jasminum sambac, Fifth National Symposium on Agriculture-2022 (NSA 2022), Faculty of
    Agriculture, Eastern University, Sri Lanka
  21. Joynirogan, J., Geretharan, T., Raveenthira, V., Srikrishnah, S. and Eeswaran,R., (2023),
    Effect of Defoliation on Growth and Yield of Okra (Abelmoschus esculentus
    L.),published in 1st International Conference on Multidisciplinary Research, jointly
    organized by Eastern University, Sri Lanka and Sri Sathya Sai University for Human
    Excellence, India.

Journal

  1. Viharnaa, R. and T. H. Seran, Seed yield of Abelmoschus esculentus L. as influenced by the combined use of inorganic and organic fertilizers, Published in Research Journal of Agriculture and Forest Sciences, International Science Community Association.
  2. Viharnaa. S and T. H. Seran, Effect of cow and poultry manures as a basal fertilizer on marketable fruit yield of okra, Accepted in International Journal of Tropical Agricultural Research and Extension, Ruhunu University of Sri Lanka.
  3. Viharna Raveenthira, Sewwandi,V.H.P. , Jeyavanan, K. and Sritharan, S.(2022).Effects of
    Goat Manure, Compost Tea and Gliricidia Leaf Extract on Growth and Yield Performance of
    Sessile Joyweed (Alternanthera sessilis), J. Innovation Sciences and Sustainable
    Technologies, 2(3)(2022), pp 137 - 145.

Books

  1. Aruvadaikku Pinnana Tholinudpam
  2. Natural Farming (ISBN 978-955-44337-1-7)

     

  1. Somasundaram First Class Award- 2011 for obtaining first class in all four years in
    the Bachelor of Science in Agriculture Degree Programme 2010/ 2011
  2. Prof V Arulnandhy Commendation Award- 2011 for the best performance during the first three years in Agricultural Biology 2010/2011
  3. Batticaloa Lions Club Award for the best performance at the first year examination of the B.Sc. Agriculture - 2008