Dr. (Mrs) Nanda. P. Dissanayaka
Senior Lecturer (Grade I)
Senior Lecturer (Grade I)
B.Sc. Special Degree (PERADENIYA, SL)
PhD in University of Reading, U.K.
Specialization � Plant Physiology and Weed Biology
Email - Nandapd@bot.ruh.ac.lk
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- Plant Diversity
- Plant Physiology and biochemistry
- Weed Biology and management
- Seed physiology and technology
- Wetland management in Sri Lanka
- Research interests-
- weed biology, weed crop competition, plant physiology, seed physiology
- Jayatissa, L.P., Weerakkody, W.A.T., Dissanayake, N.P., Senanayaka G., Sanjeewani, S.(2006), A study of salt secretion by mangroves of Rekawa lagoon, Sri Lanka ,Ruhuna journal of Science, Volume 1,1-15
- Dissanayake, N.P and Amarasena, K.M.C (2008), Assesment and comparison of salt content in mangrove plants in Sri Lanka, Ruhuna journal of Science, Volume 3, pp59-65
- N.P.Dissanayake, S.K.Madarasinghe, K.A.S.Kodikara, L.P.Jayatissa, A.J.D. Perera, N.. Koedam, and F.Dahdouh-Guebas (2014). Preliminary study on the propagule dependency of Rhizophora seedlings. Journal of the Department of wild life conservation, 2014-2:143-153.
- N.P.Dissanayake, K.A.S. Kodikara, D.S. Vithanage, S. A. Krishnarajah, M. K. Rubasinghe, L.P. Jayatissa, T.G. Dayananda; Genetic relationship of Sri Lankan Exacum trinervium complex based on random amplified polymorphic DNA technique. WILDLANKA. Department of Wildlife Conservation, Sri Lanka. Vol. 3, No. 3, pp. 133 - 138, 2015
- N.P.Dissanayake ,K.A.S.Kodikara, D.S.Withanage, S.A.Krishnarajah, M.K.Rubasinghe , T.G.Dayananda: Effects of 6 Benzyl Amino Purine (BAP) treatment on seed germination and seedling vigour of endemic herb Exacum trinervium L. in Sri Lanka: Conservation strategy Journal of University of Ruhuna 2015 1: 4-13
- N.P.Dissanayake ,K.A.S.Kodikara, S. Premachandra, L.P. Jayatissa Structural and functional responses of xylem in Rhizophora mucronata seedling under drought and hypersaline conditions, Ruhuna Journal of science Vol. 9 xx-xx, 2018 13-31
- Sugunadasa,G.G.M.S., Dissanayake, N.P.(2006) Preliminary investigation on the role of indigenous pathogenic fungi in control of Echinochloa sp. 3rd Academic sessions , University of Ruhuna. Pp, 118-120
- B.P.Sandani, C.Ranasinghe, W.G.S.M.Kumari, N.P.Dissanayake, R.T.Ekanayake,D.M.K.W.Gunasekara and S.Priyadarshani Prevalence of diseases on Carica papaya L. in Western and Southern provinces, ISAE December 2013, Faculty of Agriculture, University of Ruhuna, Matara. pp 452-455
- Abstracts published
- Dissanayake, N.P. A preliminary study on distribution and density of dicot weeds in Southern Sri Lanka. SLAAS 53rd Annual Session 1997
- Dissanayake N.P. The influence of increasing rhizospheric calcium on the ability to control water status. SLAAS 54th Annual Session 1998
- Dissanayake, N.P and Hewage, H.R. Lithium as anon radioactive tracer in maize legume intercropping system. SLAAS 55th Annual Session 1999
- Dissanayake, N.P. Seed production characteristics in crop and non crop situations. SLAAS 55th Annual Session 1999.
- Dissanayake N.P. Effect of temperature fluctuation, light and nitrate on germination of some of the composite weeds. SLAAS 57th Annual Session 2001.
- Dissanayake,N.P. Effect of soil factors on seed germination of some common weeds. SLAAS 57th Annual Session 2001
- Dissanayake, N. P. and Chandrani, P.A. K. Dry matter accumulation of a C3 and a C4 plant species under different light conditions. SLAAS 57th Annual Session 2001)
- Dissanayake, N. P. and Chandrani, P.A. K. Nutritional use efficiency of Euphorbia hirta (C4) and Euphorbia heterophylla (C3) species. SLAAS 57th Annual Session 2001.
- Perera , R.A.B.J.D. and Dissanayake N. P. Study of productivity and Response in Chillie legume intercroppinf system using Lithium as a tracer. Annual Session of Institute of Biology 2002.
- Medawatta, W. W. M.A. B. and Dissanayake N. P. Priliminary ecological study in Dikpathana. 3rd Science Symposium, University of Ruhuna, 2005
- Kalupahana, V. R and Dissanayake, N. P. Role of weeds in perpetuation of Rhizoctonia solani (Rice sheath blight fungus ) . 3rd Science Symposium, 2005,University of Ruhuna, 2005.
- Dissanayake, N.P. Effect of Propanil and Ronstar PL on survival of some cyanobacteria in paddy fields of Southern Sri Lanka. 6th Science symposium, 2009, University of Ruhuna, Matara
- DS Withanage, NP Dissanayake, TG Dayananda, SA Krishnarajah and MK Rubasinghe. Effect of pre sowing treatment on seed germination and seedling vigour in Sri Lankan Exacum trinervium, an endemic herb. 7th Science symposium, University of Ruhuna, 2010.
- DS Withanage, TG Dayananda NP Dissanayake, , SA Krishnarajah and MK Rubasinghe. Genetic variability of Exacum trinervium complex in Sri Lanka, 7th Science symposium, University of Ruhuna, 2010
- Ransara GBM, Dissanayake NP,and Jayatissa, LP. A comparison of the survival and growth performance of selected mangrove and non mangrove seedlings under non saline conditions. The national conference on identification of knowledge gaps for sustainable management of mangrove ecosystems in Sri Lanka, Green dyke project , University of Ruhuna, 2010
- Masakorala,K and Dissanayake NP. Food and medicinal uses of mangroves in Sri Lanka. The national conference on identification of knowledge gaps for sustainable management of mangrove ecosystems in Sri Lanka, Green dyke project , University of Ruhuna, 2010
- S.U. Welmillage, N.P Dissanayake and M.K.Rubasinghe A study on the effect of some factors on rooting and plantlet regeneration on Chirita zeylanica and C. walkeri leaf cuttings ,9th Ruhuna Scince Symposium,University of Ruhuna, January 2013.
- N.P. Dissanayake, T.G.I. Lakmini and K. Masakorala, Growth performance of Wedelia trilobata in Matara District and its competition and allelopathic effect on Axanopus compressus 9th Ruhuna Scince Symposium,University of Ruhuna, January 2013
- Eranthi,K.L.G.N., Kumari, W.G.S.M., Dissanayake, N.P., Jayatissa, L.P The vulnerability of the invasive plant, Lantana camara L. in Sri Lanka for pathogenic diseases, 10th academic sessions, University of Ruhuna,March 2013.,
- SK Madarasinghe, KAS Kodikara, NP Dissanayake and LP jayatissa; Acacia auriculiformis (Fabaceae), a threat to mangrove forest in Rekawa lagoon, Sri Lanka; A case study. Proceedings of the 35th Annual sessions of the Institute of Biology, September 2015
- Rasanga Gunasekara, Eric Coppejans, Nanda p. Dissanayake, Olivier de Clerk, C.N. Samaranayake. (2009) Sea weeds in Sri Lanka: an untouched resource. Proceeding of the symposium, African Botany in Brusels. Page 82. Rathnayake R.M.M.N and Dissanayake, N.P. A preliminary survey of the current use of hydrophonic agricultural methods in selected areas. 5th Science symposium, 2008.
- C.Priyadarshanie,KASKodikara,,NP Dissanayake and LP Jayatissa Investigation of optimum conditions for growth and nitrogen fixation of Azolla pinnata under greenhouse conditions, Proceedings of the Wayamba University International Conference, Sri Lanka, 29-30 August,2014.
- SK Madarasinghe, KAS Kodikara, NP Dissanayake, AJD Perera, LP Jayatissa, FDahdouh-Guebas and N Koedam; Which species will perform better in mangrove restoration fields in Sri Lanka; Rhizophora mucronata or Rhizophora apiculata. Proceedings of the Wayamba University International Conference, Sri Lanka, 29-30 August, 2014.
- NP Dissanayake , AJD Perera and GT Punchihewa. Preliminary study on common weeds of leafy vegetable cultivations in southern Sri Lanka with particular emphasis on alligator weed (Alternanthera philexeroides) [MART.] GRISEB 8th International research conference, KDU, Sri Lanka,2015
- Dissanayake N.P. ,Premachandra G.S.D, Kodikara K.A.S and Jayatissa L.P. Hydraulic architecture and hydraulic conductivity of Rhizophora mucronata Lam. In response to water stress. 4 th Ruhuna International Science and Technology Conference, 2017
- Madarasinghe, S.K., Kodikara,K.A.S., Dissanayake, N.P., Sathyanarayan, B.,Jayatissa, L.P. Land use changes over past two decades in Rekawa lagoon region, Sri Lanka; 3rd Ruhuna International Science and Technology Conference, 2016.
- Thara Madhurangi H.M.T., Dissanayake N.P., Kodikara, K.A.S., Perera, A.J.D, Jayatissa, L.P. Morphological and anatomical responses of Rhizophora mucronata Lam. To water stress under greenhouse conditions. 3 rd Ruhuna International Science and Technology Conference, 2016.
- Dissanayake N.P. ,Premachandra G.S.D, Kodikara K.A.S and Jayatissa L.P. Hydraulic architecture and hydraulic conductivity of Rhizophora mucronata Lam. In response to water stress. 4 th Ruhuna International Science and Technology Conference, 2017
- Dissanayake, N.P. Hathurusinghe U.I., Kodikara K.A.S., Ranasinghe P. andJayatissa, L.P.Cell membrane integrity and proline content of Rhizophora mucronata Lam. Seedlings under hypersaline and drought conditions. 5th Ruhuna International Science and Technology Conference, 2018
- Gunawardana, M.H.S.A.V, Abeysekara, R.I., Dissanayake N.P. , Kodikara K.A.S and Jayatissa L.P. Recovery potential and nutrient uptake behavior of Chilli plants (Capsicum annum L.)exposed to soil moisture stress: indication for water and fertilizer management. 6th Ruhuna International Science and Technology Conference, 2019
- JCM Gamage, SK Madarasinghe, KAS Kodikara, NP Dissanayake KKAS Yapa and LP Jayatissa. A preliminary study on mangrove forest dieback in Kalametiya Lagoon, Southern province of Sri Lanka. 16th academic sessions, University of Ruhuna, 6th Ruhuna International Science and Technology Conference, 2019
- Madarasinghe S.K., Yapa K.K.A.S., Kodilara K.A.S., Dissanayake N.P., Sripal, D.D.N.,and Jayatissa, L.P., Management plan for rehabilitation of degrading Southern coastal lagoons; new directions for wetland management, 6th Ruhuna International Science and Technology Conference, 2020
- Chapters in books
- LP Jayatissa, KAS Kodikara, NP Dissanayake, B Sathyanarayan (2016); Chapter 4, Tsunamis and earthquakes in coastal environments. Significance and restoration pp47-64; In Post Tsunami assessment of Coastal Vegetation, with the view to protect coastal areas from ocean surges in Sri Lanka (Eds;Santiago Fandino V,Tanaka H, Spiske M).
- Dissanayake N.P. (2009), Marine algae and sea grasses (uqyqoq we,af.a iy uqyqoq ;DK) pp 42-50; In Trainer�s manual for community based coastal resource management (Editor L.P. Jayatissa), published and distributed by SEWALANKA Foundation
- 1990-British Government Technical Co-operation Training Award- for Ph.D. in Reading, U.K.
- 2009- j�I mQ�K fiajd Wmydr ;s,sK (jir 25 fiajd ld,h msrSu ksus;af;ka,) University of Ruhuna.
- Head/ Department of Botany from July 2010 to 12th December 2012
- Student councellor in Faculty of Science, University of Ruhuna from 2017 December up to date
- Acting Co-ordinator of the Green Dyke project from 2009.05.01 and also in the same position from 20th September 2013 to 17th December 2013.
- Senior treasurer of the Botanical Society during 2005-2008
- A member of the IQAC committee in Faulty of science
- A member of the innovation and exhibition committee
- A member of the student grievances redressal committee
