The electronic version of the Tropical Agricultural Research Volume 26, Number 2, 2015

ISSN: 1016.1422


 
 

Research Articles

Page

1 Evaluation of the Potential of Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) as a Bio-control Agent for Trichoplusia ni, cabbage semi-looper 223
S.A.A. Singhamuni, M.I.U.F. Jayasuriya, K.S. Hemachandra and U.G.A.I. Sirisena

 

2

Scanning Electron Microscopy of Six Selected Mealybug (Hemiptera: Pseudococcidae) Species of Sri Lanka

237

 
U.G.A.I. Sirisena, G.W. Watson, K.S. Hemachandra, O. Sage and H.N.P. Wijayagunasekara

 

3 Seasonal Changes in Home Range and Habitat Use of Elephants in Southern and North-Central Provinces of Sri Lanka 248
M.S.L.R.P. Marasinghe, N.D.K. Dayawansa and R. P. De Silva

 

4 Comparative Study on Morphological and MorphometricFeatures of Village Chicken inSri Lanka 261
R.P. Liyanage, C.M.B. Dematawewa and G.L.L.P. Silva

 

5 Modelling the Impact of Changes in Rainfall Distribution on the Irrigation Water Requirement and Yield of Short and Medium Duration Rice Varieties Using APSIM During Maha Season in the Dry Zone of Sri Lanka 274

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

 

6 Factors Predicting the Intention of Academics of Faculties of Agriculture in the State Universities in Sri Lanka to Engage in Outreach Activities 285
R.M.S. Wijerathna, H.V.A. Wickramasuriya and B. Marambe

 

7

Performance of Different Breeding Methods Cowpea (Vigna unguiculata (L). Walp) Improvement Programmes

294
M.C. Millawithanachchi, V.A. Sumanasinghe, A.P. Bento1 and S. de Z. Abeysiriwardena

 

8

Equal-Weighted Information Criterion for Model Selection in Univariate  Time Series Analysis

303
Sampson Ankrah, B.L. Peiris and R.O. Thattil

 

9 Validation of Molecular Markers for the Analysis of Genetic Diversity of Amylose Content and Gel Consistency among Representative Rice Varieties in Sri Lanka 317

H.K.D.H. Fernando, T.J.C. Kajenthini, S.P. Rebeira, T.C. Bamunuarachchige and H.A.M. Wickramasinghe

 

10

An Efficient Protocol for Isolation of Functional RNA from Peel Tissue of Different Banana (Musa spp.)Cultivars for Gene Expression Studies on

Anthracnose Development

329
U.M. Aruna Kumara and Devika M. De Costa

 

11 Comparative Performance Assessment of Major Irrigation Systems in Upper  Deduru Oya Basin 343
W.A.S. Lakmali, E.R.N. Gunawardena and N.D.K. Dayawansa

 

12 Vibration Simulation Testing of Banana Bulk Transport Packaging Systems 355
W.M.C.B. Wasala, D.A.N. Dharmasena, T.M.R. Dissanayake and B.M.K.S. Thilakarathne

 

13 Brassinosteroids Improve Quality of Table Grapes (Vitis vinifera L.) cv. Flame Seedless 368
W.A. Harindra Champa, M.I.S. Gill, B.V.C. Mahajan, N.K. Aror and Seema Bedi

 

14 Morphological Variation in Selected Sri Lankan Rice (Oryza sativa L.) Accessions in relation to the Vegetative Parameters 380
H.C.D. Wijayawardhana, H.M.V.G. Herath, P.A. Weerasinghe and H.M.D.A.K. Herath

 

Short Communications
15 Prevalence of Stunting Among Pre-School Children In Food Insecure Rural Households In Sri Lanka 390
  J. Thamilini, K.D.R.R. Silva and J.M.U.K. Jayasinghe  
16 Adsorption Characteristics of Cadmium and Lead heavy Metals into Locally Synthesized Chitosan Biopolymer 395
  J.M. Unagolla and S.U. Adikary  
17 Effects of Hydro-Climatic Fluctuations on Catchability of Fish in  Vavuniya Reservoir, Sri Lanka 402
  A.E.S. Patrick, S. Kuganatha and U. Edirisinghe  
18 A Preliminary Investigation on Methods of Reducing Antibiotic Resistant Bacteria in Broiler Litter in Selected Farms in Mid Country Sri Lanka 409
  E.M. Herath, W.S. Dandeniya, A.G.S.I. Samarasinghe, T.P.M.S.D. Bandara and R.N. Jinadasa

 

 
19 Organic Matter Content of a Lowland Paddy Soil as Affected by Plant Growth and Urea Fertilisation 415
  T. Sellathurai, T. Sivananthawerl, L.W. Galagedara and M.I.M. Mowjood