The electronic version of the Tropical Agricultural Research Volume 18, 2006
ISSN: 1016.1422



Research Articles

     
I Soil and Water Management

 

     
 1

 Shift in Onset of First Inter Monsoon Rain in Coconut Growing Areas in Sri Lanka

 K.P. Waidyarathne, T.S.G. Peiris and S. Samita

 

 
2

Effect of Electrical Conductivity [EC] of the Nutrient Solution on Nutrient Uptake, Growth and Yield of Leaf Lettuce (Lactuca sativa L.) in Stationary Culture

U.C. Samarakoon, P.A. Weerasinghe and W.A.P. Weerakkody

 

 

3

Analysis of Quality and Consumer Preference for Harvested Rainwater in Anuradhapura District

M.A.C.S. Bandara, R.P. De Silva and N.D.K. Dayawansa

 
 
4

Technical and Socio-Economic Assessment of Micro Irrigation Systems in the Small Scale Farming Sector of Sri Lanka

E.M.T. Ekanayake, L.H.P. Gunaratne and E.R.N. Gunawardena

 
 
5

A Site-Specific Fertilizer Recommendation for Rice Grown in Imperfectly Drained Reddish Brown Earth Soils in Low Country Dry Zone of Sri Lanka

W.M.J. Bandara, D. Kumaragamage, D.B. Wickramasinghe and S.B.A. Weerawarna

 
 
6

Reasons for and Impacts of Excessive Fertilizer Usage for Potato Farming in the Nuwara Eliya District

W.S.B. Ariyapala and S.P. Nissanka

 

 
7

Evaluation of Kinetics of Nitrogen Uptake by Five Macroalgal Species in Eutrophic Coastal Waters Using 15N

V. Raikar and M. Wafar

 

 
     
II Food Science and Nutrition

 

     
8

The Effect of Nutritional Status on Cognitive and Motor Development of  Pre-School Children

S.M.L.P. Subasinghe and D.G.N.G. Wijesinghe

 

 
9

Development and Quality Evaluation of a Protein Enriched Instant Noodle

U.S. Jayarathne, P.C. Arampath and P.F.S. Pemasiri

 

 
10

Liquor Quality of Rice Wine as Affected by Yeast Strains Isolated from Coconut and Palmyrah Sap

C.K.D. Wellala, C.K. Illeperuma, R.M.M.L.B. Wewegama and M.H.W. Gunawardhane

 

 
11

Quality of Rice Wine as Affected by Rice Polishing Ratio

L.N. Kadawatha Arachchige, C.K. Illeperuma, L.B. Wewegama and M.H.W. Gunawardhane

 

 
12

Studies on Utilization of Coconut Flour as a Source of Cell Wall Polysaccharides

L.L.W.C. Yalegama and J.K. Chavan

 

 
13

Effect of Chitosan Coating on Postharvest Life of Papaya (Carica papaya L.) var. Rathna Grown in Sri Lanka

I.G.N. Hewajulige, D. Sivakumar, Y. Sultanbawa, R.S. Wilson Wijeratnam and R.L.C. Wijesundera

 

 
14

Development of Little Millet (Panicum sumatrense Roth ex Roem. & Schult.) Substituted Biscuits and Characterization of Packaging Requirement

G. Hemalatha, S. Amutha, D. Malathi, P. Vivekanadan and G. Rajannan

 

 
     
III Plant Protection

 

     
15

Mode of Transmission of Sugarcane (Saccharum officinarum L.) White Leaf  Phytoplasma in Sri Lanka

J.A.U.T. Seneviratne, J.M.R.S. Bandara, D. Ahangama and Li Huaping

 

 
16

Mycopathogens Associated with Pests of Chilli and their Pathogenicity  Against Thrips (Scirtothrips dorsalis) and Mites (Polyphagotarsonemus latus)

G. Mikunthan and M. Manjunatha

 

 
17

Induction of Defense Mechanisms in Coffee (Coffea arabica L.) Against Coffee Leaf Rust Caused by Hemileia vastatrix by Native Rhizobacterial Isolates

P. Panneerselvam, M. Thangaraju and Jayarama

 

 
     
IV Energy and Farm Mechanization

 

     
18

Design and Fabrication of an Engineering Model of a Crop Dryer

R.M.S.P. Rathnayake, A.R. Ariyaratne and S.P. Prematilake

 

 
19

Paddy Husk Fuel Block

R.P.K.C.S. Rathnayaka and A.R. Ariyaratne

 

 
20

Development of a Coconut De-Shelling Machine

T. Vidhan Singh and R. Udhayakumar

 

 
     
V Genetics and Biological Conservation

 

     
21

Development of New High Yielding Chilli Hybrids (Capsicum annuum L.) Based on Heterobeltiosis and Characterization of Parental Germplasm for DNA Polymorphisms

M.C. Millawithanachchi, A.L.T. Perera, B.C.N. Peiris and H.M. Fonseka

 

 
22

Comparison of Effectiveness of RAPD, ISSR and SSR Markers for Analysis of Coconut (Cocos nucifera L.) Germplasm Accessions

R. Manimekalai, P. Nagarajan and P.M. Kumaran

 

 
23

More Precise QTL Mapping Using STAIRS

S.A.C.N. Perera, T.M. Wilkes and M.J. Kearsey

 

 
24

Phenotypic Diversity of Sri Lankan Tea (Camellia sinensis L.) Germplasm Based on Morphological Descriptors

J.H.N. Piyasundara, M.T.K. Gunasekare, T.U.S. Peiris and I.P. Wickramasinghe

 

 
25

Variation of Pyrrosia heterophylla (L.) Price and Evidence for Occurrence of Two Other Pyrrosia Species in Sri Lanka

R.H.G. Ranil, D.K.N.G. Pushpakumara and T. Sivananthawerl

 

 
     
VI Economics, Extension and Sampling

 

     
26

Construction of a Composite Index to Measure Consumption Poverty and it's Comparison with the Conventional Indicator

R.M.L. Rathnayake and L.H.P. Gunaratne

 

 
27

Economic and Health Consequences of Lime Dust Emission in Digana, Kandy District

S.M.T.K. Samarakoon and S. Thiruchelvam

 

 
28

Analysis of Suitability of “Shifting Cultivation Stabilization Pilot Project” as an Preferential Information Sources of Farmers in Udaipur District of Rajastan, India on Improved Farm Practices

M. Kurukulasuriya, W.A.D.P.Wanigasundera and C. Sivayoganathan

 

 
29

Preferential Information Sources of Farmers in Udaipur District of Rajastan, India on Improved Farm Practices

A.M.A.P.G. Gunawardana and V.P. Sharma

 

 
30

Determination of the Sampling Technique to Estimate the Performance at Grade Five Scholarship Examination

W.M.R. Kumari and S. Samita

 

 
     
VII Crop Science

 

     
31

Feasibility of Single Palm Plot in Coconut Experimentation

J.D.J.S. Kularatne, T.S.G. Peiris and S. Samita

 

 
32

Rapid Determination of Seed Quality during Development and Maturation of Fodder Sorghum (Sorghum bicolor (L.) Moench) Seeds by using Digital Image Processing

M. Shanmugavalli and P.R. Renganayaki

 

 
33

Antioxidant Response of Rice (Oryza sativa L.) Varieties to Salt Stress at Different Growth Stages

M.I.S. Safeena and D.C. Bandara

 

 
34

Relationship Between Above Ground Live Biomass and Satellite Image Spectral Responses (Landsat ETM+) of Pinus caribaea Morelet at Lower Hantana Region in Sri Lanka

A.R. Gunawardena, S.P. Nissanka and N.D.K. Dayawansa

 

 
35

Plant Training and Spatial Arrangement for Yield Improvements in Greenhouse Cucumber (Cucumis sativus L.) Varieties

M.G.S. Premalatha, K.B. Wahundeniya, W.A.P. Weerakkody and C.K. Wickramathunga

 

 
36

Short-term Storage of Encapsulated Zygotic Embryonic Axes of Tea (Camellia sinensis (L.) Kuntze) at Low Temperature

T.H. Seran, K. Hirimburegama and M.T.K. Gunasekare

 

 
37

Somatic Embryogenesis from Embryogenic Leaf Callus of Tea (Camellia sinensis (L.) Kuntze)

T.H. Seran, K. Hirimburegama and M.T.K. Gunasekare

 

 
38

In Vitro Flower Induction in Gerbera (Gerbera Jamesonii Adlam)

R.A.T.D. Ranasinghe, A.G.N.I. Abayagunawardana, H.I.D.D. Hettiarachchi , A.R.F. Farzana and J.P. Eeswara

 

 
     
  Short Communications  
   

 

39

Effect of Different Cultivars and Preparation Methods on Vitamin E, Total Fat and Fatty Acid Content of Soybean (Glycine max (L.) Merr.) Seeds

S. Vasantharuba, P.G. Liyanage and R. Sivakanesan

 

 
40

Effects of Fertilizer Dosage and Nutrient Balance on the Growth and Nutrient Uptake of Greenhouse Tomatoes

R.A.S. Ranasinghe and W.A.P. Weerakkody

 

 
41

Potential Exploitation of Refuse Tea as an Alternative Medium in Mushroom Cultivation

K.H. Rupasingha and K.A. Nandasena