The electronic version of the Tropical Agricultural Research Volume 25, Number 3, 2014

ISSN: 1016.1422


 
 

Research Articles

 

 

1.

Aligning Sowing Dates with the Onset of Rains to Improve Rice Yields and Water Productivity: Modelling Rice (Oryza sativa L.) Yield of the Maha Season in the Dry Zone of Sri Lanka

277

R.P.R.K. Amarasingha, L.W. Galagedara, B. Marambe G.L.L.P. Silva, R. Punyawardena, U. Nidumolu, M. Howden and L.D.B. Suriyagoda
 

2

Site Specific Fertilizer Recommendations for Maize (Zea mays L.) Grown in Reddish Brown Earth and Reddish Brown Latasolic Soils

287
J.A.S. Chathurika, S.P. Indraratne and W. S. Dandeniya

 

3 Efficacy of Pomegranate (Punica granatum L.) Peel Extracts in Suppressing Oxidation of White Coconut Oil Used for Deep Frying 298
Dilini Bopitiya and Terrence Madhujith

 

4 Empowerment of Women through Self-Reliance Approach in the Rice Processing Village Programme 307

C.A.K. Dissanayake, J.A.S. De Silva, W.M.C.B. Wasala and B.M.K.S. Thilakarathne

 

5

Livelihood Status of Tribal People Practicing Shifting (Jhum) Cultivation in Tripura State of North-East India

316
Jayasree Datta, N.R. Gangadharappa and G.S. Biradar

 

6 Response of Maize (Zea mays L.) to a Temperature Gradient Representing Long-Term Climate Change Under Different Soil Management Systems 327

M.A.P.W.K. Malaviarachchi, W.A.J.M. De Costa, R.M. Fonseka, J.B.D.A.P. Kumara, K.M.R.D. Abhayapala and L.D.B. Suriyagoda

 
7

Area Suitability Prediction for Conserving Elephants: An Application of Likelihood Ratio Prediction Model

345
M.S.L.R.P. Marasinghe, N.D.K. Dayawansa and R. P. De Silva

 

8

Clustering of Rice (Oryza sativa L.) Varieties Cultivated in Jaffna District of Sri Lanka based on Salt Tolerance during Germination and Seedling Stages

358
L. Pradheeban, N.A.A.S.P. Nissanka and L.D.B. Suriyagoda

 

9 Variations of Incidence, Types of Virus Diseases and Insect Vector Populations of Tomato (Solanum lycopersicum L.), Grown in Different Agro-ecological Regions of Sri Lanka under Two Crop Management Systems 376
K. Prasannath, K.N.P. Dharmadasa, D.M. De Costaand K.S. Hemachandra

 

10

Link Function for Binomial Model in Estimating Knockdown Time (KT95 and KT50) of Mosquito Repellents

396
T.J. Silva, S. Samita and S.A.S.C. Senanayake

 

11 Variation of Salinity in Batticaloa Lagoon in Sri Lanka During Wet Season 403
M. Sugirtharan, S. Pathmarajah and M.I.M. Mowjood

 

12

Morphological and Pathogenic Variations of the Causal Organisms of Leaf Twister Disease of Red Onion (Allium cepa L.) in Jaffna District of Sri Lanka

412
A. Vengadaramana and D.M. De Costa

 

Short Communications
     
13 Influence of Gypsum Application on Yield and Visual Quality of Groundnut (Arachis hypogaea L.) Grown in Maspotha in Kurunegala District of Sri Lanka 432
  S.M.C.R. Thilakarathna, J.P. Kirthisinghe, B.L. Gunathilaka and D.M.P.V. Dissanayaka  
14 Socio-Demographic Factors Contributing to the Productivity in Paddy Farming: A Case Study 437
  A.N. Siriwardana and L.N.A.C. Jayawardena