Prof. Dr. Shyama Ranjani Weerakoon
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Prof. Dr. Shyama Ranjani Weerakoon

Professor
Open University of Sri Lanka, Sri Lanka

Highest Degree
Ph.D. in Plant Breeding and Genetics from University of Western Australia, Australia

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Area of Interest:

Plant and Soil Sciences
100%
Plant Reproductive
62%
Tropical Agriculture
90%
Medicinal Plants
75%
Plant Breeding
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
0
Abstracts
0

Selected Publications

  1. Munasinghe, S.P., S. Somaratne and S.R. Weerakoon, 2017. Screening of sri lankan rice (Oryza sativa l.) landraces for drought tolerance. Trop. Agric. Res., 28: 183-191.
    CrossRef  |  
  2. Ekanayake, E.M.S.I., S.R. Weerakoon, S. Somaratne and O.V.D.S.J. Weerasena, 2017. Developing herbicide resistant Sri-lankan rice (Oryza sativa L.) varieties: An application of Self Organizing Map. J. Inf. Process. Agric., 4: 140-149.
    CrossRef  |  Direct Link  |  
  3. Weerakoon, S.R., S. Somaratne, P.K.D. Peiris and O.V.D.S.J. Weerasena, 2016. The ecological provenance of phenotypic and genotypic variation in mustard [Brassica juncea (L.) Czern. Coss.] accessions in Sri Lanka. Acta Hortic., 1127: 503-504.
    CrossRef  |  Direct Link  |  
  4. Weerakoon, S.R. and S. Somaratne, 2016. Impacts of recent and anticipated changes in atmospheric CO2 concentrations on growth performance of Weedy Rice (Oryza sativa f. Spontanea) bio-types in Sri Lanka. Int. J. Current Res., 8: 43371-43376.
  5. Karunaratne, K.D.K., S.R. Weerakoon, S. Somaratne and O.V.D.S.J. Weerasena, 2016. Distribution patterns and genetic relationships of weedy rice (Oryza sativa f. spontanea) populations in different climatic zones in Sri Lanka. Int. J. Current Res., 8: 42777-42783.
    Direct Link  |  
  6. Ekanayaka, E.M.S.I., S.R. Weerakoon, T.D. Silva and S. Somaratne, 2016. Induction of Herbicide resistance via seed-derived rice (Oryza sativa) calli. IRA-Int. J. Appl. Sci., 3: 448-458.
    CrossRef  |  
  7. A.M. DonPaul, S.R. Weerakoon, S. Somaratne 2016. Antioxidant Properties of Leaf, Twig and Calli Extracts of Neolamarckia cadamba (Roxb.) Bosser in Sri Lanka Res. J. Med. Plants, 10: 314-319.
    CrossRef  |  
  8. Karunaratne, K.D.K., S.R. Weerakoon, S. Somaratne and O.V.D.S.J. Weerasena, 2015. Molecular and agro-morphological differences among traditional rice variety pachchaperumal and closely related weedy rice eco-types in sri lanka. Int. J. Trop. Agric., 33: 3315-3322.
  9. Weerakoon, S.R., 2014. Introducing herbicide resistant crops to sri lanka: A review. OUSL J., 7: 95-122.
    CrossRef  |  
  10. Somaratne, S., K.D.K. Karunarathna, S.R. Weerakoon and A.S.K. Abeysekera, 2014. Salient characters of weedy rice (oryza sativa f. spontanea) populations in highly infested areas in sri lanka. Ruhuna J. Sci., 5: 31-36.
    CrossRef  |  
  11. Weerakoon, S.R., S. Somaratne, R.G. Wijeratne and E.M. Ekanayaka, 2013. Natural herbicide resistance (hr) to broad-spectrum herbicide, glyphosate among traditional and inbred-cultivated rice (oryza sativa l.) varieties in sri lanka. Pak. J. Biol. Sci., 16: 796-803.
    PubMed  |  Direct Link  |  
  12. S.R. Weerakoon, S. Somaratne 2013. Agronomic Potential of Lupin (Lupinus spp.) in Sri Lanka as an Alternative Crop: Growth and Yield Performance in Different Agro-ecological Regions Asian J. Agric. Res., 7: 1-14.
    CrossRef  |  
  13. Abeysekera, A.S.K., S.R. Weerakoon, D.K. Karunaratne and D.E. Johnson, 2012. Morphological variation in offspring derived from single panicle of weedy rice. Ann. Sri Lanka Department Agric., 14: 1-9.
  14. Weerakoon, S.R., 2011. Producing inter-specific hybrids between brassica juncea (l.) czern & coss and b. Oleracea (l.) to synthesize trigenomic (abc) Brassica. J. Sci., Univ. Kelaniya, 6: 13-34.
    CrossRef  |  
  15. Weerakoon, S.R. and S. Somaratne, 2011. Seasonal variation of growth and yield performance of mustard (Brassica juncea (L.) Czern & Coss) genotypes in Sri Lanka. J. Agric. Sci., 6: 1-15.
    CrossRef  |  
  16. Iqbal, M.C.M., S.R. Weerakoon, H.D.N. Geethanjalie, P.K.D. Peiris and O.V.D.S.J. Weerasena, 2011. Changes in the fatty acids in seeds of interspecific hybrids between Brassica napus and Brassica juncea. J. Crop Pasture Sci., 62: 390-395.
    Direct Link  |  
  17. Weerakoon, S.R. and S. Somaratne, 2010. Agro-morphological characterization and relationships amoung mustard germplasm (Brassica juncea [L.] Czern & Coss) in Sri Lanka: A classification tree approach. J. Agric. Sci., 5: 89-97.
    CrossRef  |  
  18. Yan, G., M.N. Nelson, A. Pradhan, W. Cowling, S.R. Weerakoon,et al, 2009. Progress towards the creation of trigenomic Brassica hexaploid populations. SABRAO J. Breeding GEN., .
    Direct Link  |  
  19. Weerakoon, S.R. and S. Somaratne, 2009. Phytoextractive potential among mustard ( Brassica juncea ) genotypes in Sri Lanka. Cey. J. Sci. Bio. Sci., 38: 85-93.
    CrossRef  |  
  20. Iqbal, M.C.M., S.R. Weerakoon and P.K.D. Peiris, 2006. Variability of fatty acid composition in interspecific hybrids of mustard brassica juncea and brassica napus. Cey. J. Sci. Bio. Sci., 35: 17-23.
  21. Pathirana, P.S.K., S.R. Weerakoon and S. Somaratne, 2005. Prior learning experience and student performance in distance education : A cross sectional survey on B.Sc. students at Ousl. J. Hum., Soc. Sci. Educ., 3: 31-48.
    Direct Link  |  
  22. Dahanayake, S.R. and R.L.C. Wijesundera, 1994. Penicillium purpurogenum on fruits of Averrhoa bilimbi in Sri Lanka. J. Nat. Sci. Coun. Sri Lanka, 22: 23-24.
    Direct Link  |