Tropical Agricultural Research Volume 31, Number 2, April 2020



Research Articles



Assessment of Marker Based Genotype Diversity of Saltol QTL in Relation to Seedling Stage Salinity Tolerance in Selected Rice Genotypes 1 - 11

Y.A.P.K. Dayasena, U.A.K. Udawela and S.D.S.S. Sooriyapathirana

2 Evaluation of Energy Balance in Tropical and Temperate Crossbred Dairy Cows at Post-Partum Transition Stage: A Case Study 12 - 20


 K.K.T.N. Ranaweera, M.B.P.K. Mahipala and W.M.P.B. Weerasinghe

3 Extraction of Microfibrilated Cellulose Using Waste Garment Cotton Fabrics 21 - 28

 J.M.R Jayasinghe, A.M.P.B. Samarasekara and D.A.S. Amarasinghe

4 Changes in Population Densities of Two White-Eye Species (Passeriformes: Zosteropidae) Along an Altitudinal Gradient in Sri Lanka 29 - 40

 C.S. Wijesundara, S.K. Yatigammana and P. Silva



Rainfall Trends in the North-Western and Eastern Coastal Lines of Sri Lanka Using Non-Parametric Analysis

41 - 54

W.W.U.I. Wickramaarachchi, T.U.S. Peiris and S. Samita


6 Variations in Soil Chemical Parameters of Long Term SugarcaneGrowing Alfisols under Contrasting Cropping Conditions at Sevanagala, Sri Lanka 55 -64

H.A.S. Weerasinghe, G.P. Gunaratne, A.N. Jayakody and R.S. Dharmakeerthi

7 Unobserved Components Model for Forecasting Sugarcane Production in Sri Lanka 65 - 74

B.D.S.K. Ariyawansha , N.R. Abeynayake and T. Sivananthawerl

8 Field Performance of Mixtures of Pseudomonas and Bacillus spp. in Managing Papaya Ringspot Virus Disease and their Effect on Plant Defense Enzyme Activity 75 - 86

C. Ranasinghe and D.M. De Costa

9 Modified Atmospheric Packaging Extends the Postharvest Shelf Life of Mukunuwenna (Alternanthera sessilis L.) 87 - 96
  B.A.M.S. Kumara and C.K. Beneragama  
10 A Comparison of Chemical Profiles of Callus, Plant and Agarwood Extracts of Gyrinops walla using Thin Layer Chromatography 97 -105
  S. Selvaskanthan, D.B.R. Kaushalya, D.K.N.G. Pushpakumara, L. Jayasinghe and J.P. Eeswara  
11 Application of Polyphasic OJIP Chlorophyll Fluorescent Transient Analysis as an Indicator for Testing of Seedling Vigour of Common Bean (Phaseolus vulgaris L.) 106 -115
  R.A.I.S. Ariyarathna, S.L. Weerasena and C.K. Beneragama  
Postgraduate Institute of Agriculture, university of Peradeniy, Sri Lanka
ISSN: 1016 - 1422