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International Symposium on Agriculture and Environment (ISAE): Recent submissions

Now showing items 741-760 of 1226

Assessment of Genetic Diversity of Cowpea Germplasm based on Morphological Characters

Millawithanachchi, M.C.; Saranasinghe, S.N.K.; Bentota, A.P.; Prathapasinghe, N.T. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Cowpea is a grain legume well adapted for low input agriculture systems in subsistence farming. Development of suitable cowpea varieties with better yield attributes will be beneficial for the cowpea growing farmers. ...
Efficiency of Callogenesis and Amenability to Agrobacterium Mediated Transformation of Selected Traditional Sri Lankan Rice Varieties

Bandara, M.M.K.; Kekulandara, D.S.; Dissanayake, D.M.R.B.N.; Samarasinghe, W.L.G.; Bamunuarachchige, T.C. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Traditional rice (Oryza sativa L.) varieties possess many important traits such as medicinal and nutritional properties, drought and pest resistance, salt tolerance, etc. Efficient plant regeneration culture and ...
Diversity and Abundance of Ground Beetles (Carabidae: Coleoptera) in Eco-Friendly Home Gardens in Comparison with Conventional Home Gardens in Southern Dry Zone of Sri Lanka

Hemachandra, K.S.; Bandara, B.P.U.R.; Weerakkody, W.A.P.; Wasantha, J.K.S.; Sirisena, U.G.A.I.; Priyadarshani, T.D.C.; Soorasena, J.M. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Insect diversity plays an important role in agro-ecosystem in relation to stability and productivity; therefore, conservation of biodiversity is important for long-term viability of agro-ecosystems. Biodiversity in farm ...
Some Parasitoids of Rice Pests Collected from Insecticide-Free Rice Fields in Sri Lanka

Lakshman, L.H.D.S.; Wijayagunasekara, H.N.P. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Insect pest problem in rice have become much more frequent and complexes in the last three decades mainly due to the expansion of growing areas over time and space. Continuous availability of food source helps pests to ...
Genotypic Variations on Yield and Yield Related Parameters of Mung Bean ( Vigna Radiata (L.) Wilczek) under Water Stress in the Low Country Dry Zone of Sri Lanka

Eeswaran, R.; Weerakoon, W.M.W.; Sangakkara, U.R. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

According to several climate predictions, the crop production in the sub humid tropical regions seems to be threatened by climate change mainly by the reduction in water availability due to heated atmosphere and erratic ...
Germination Behavior of Weedy Rice at Different Sowing Depths under Field Conditions

Rupasingha, K.M.A.S.K.; Ratnasekera, Disna (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Weedy Rice (Oryza sativa complex) becomes the most dominant and competitive weed in Sri Lanka. Seed shattering and seed dormancy have enriched the soil seed bank. Weedy rice seeds remain longer period in soils at different ...
No-Tillage Farming for Sustainable Biomass Production

Komatsuzaki, Masakazu (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Sustainable biofuel production systems are desirable for building sustainable societies, and will have an important role for producing biofuel feedstock in this century. However, there are several obstacles that need ...
Cadmium and Lead in Dry and Wet Zone Rice - Vegetable Cropping Systems

Dilshani, D.W.A.W.; Indraratne, S.P.; Silva, N.R.N. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

High input agriculture could lead to accumulation of heavy metals in soils. This research is undertaken to compare the total concentration of Cd and Pb in selected rice-vegetable cultivations of wet and dry zones of Sri ...
Exogenous Application o f Salicylic Acid with Irrigation to Alleviate Drought Stress of Rubber Nursery Plants in the Intermediate Zone o f Sri Lanka

Nakandala, S.A.; Weerasinghe, K.D.N.; Senevirathne, P.; Iqbal, S.M.M.; Pathirana, P.D. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

With the increasing demand for natural rubber, the Government of Sri Lanka (GOSL) explores the possibilities of expanding rubber cultivation in to non traditional areas of the country. Drought is considered as one of the ...
Evaluation of the Recent Nitrogen Fertilizer Recommendation for Rice Variety Bg 300 in Dry Zone of Sri Lanka through a Modelling Approach

Amarasingha, R.K.; Suriyagoda, L.D.B. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

In most regions of Sri Lanka, rice is grown with intensive management under both irrigated and rainfed, low-land puddled conditions. Apart from use of high yielding improved rice varieties recommended by the Department ...
Extending the Soil Database of the Dry Zone of Sri Lanka to Cover the Northern Region

Mapa, Ranjith B.; Gowthamy, P.; Gnanavelrajah, Nalina; Kulasiri, A.H. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

With the agricultural development in the Northern region of Sri Lanka, there is a need to characterize the soils for land use planning and environmental applications. The objective of this study was to characterize the ...
Seed Crop of Bitter Gourd as Influenced by Soil Application of Phosphorus and Micronutrient Spray

Mandal, Joydip (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

An experiment was conducted on seed production and seed quality aspects of bitter gourd. The experiment comprising of five levels of phosphorus (0, 25. 50, 75 and 100 Kg P20 5/ha) and three levels of Micronutrients (water ...
Site Specific Nutrient Management for Low Productive Soils from Two Agro-Ecological Zones of Sri Lanka

Chathurika, J.A.S.; Indraratne, S.P.; Dandeniya, W.S. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Soils and their management options are considered as location and situation specific. An experiment was conducted to identify beneficial nutrient management practices to improve soil fertility for selected low productive ...
Nutrient Management Strategies for Two Different Soils in the Wet Zone of Sri Lanka

Mariaselvam, A.A.; Dandeniya, W.S.; Indraratne, S.P. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Combined use of organic amendments (OA) with mineral fertilizer is a feasible method of nutrient management to deal with soil fertility decline, soil organic matter depletion, crop growth and yield reduction. To study ...
Spatial Variability of Soil Properties in a Dry Zone Soil Catena of Sri Lanka

Rosemary, F.; Vitharan, U.W.A.; Indraratne, S.P.; Weerasooriya, S.V.R. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Detailed information on spatial variability of soil properties is important for the decision making in site specific soil management and land use planning. Available coarse scale classical soil maps are insufficient to ...
Origin and Spatial Distribution of Heavy Metals in a Soil Map Unit of Sri Lanka

Sanjeevani, U.K.P.S.; Indraratne, S.P.; Vitharana, W.A.U.; Weerasooriya, R.; Rosemary, F. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Total concentrations and spatial distribution of heavy metals and their relationship with soil properties in soils are important in sustainable soil management. Therefore, a study was conducted to examine the total ...
Effect of Different Mulching Materials on Productivity of Papaya (Carica papaya) and Soil Moisture Availability

Chandrapala, A.G.; De Silva, S.H.S.A.; Jayalath, H.A.P. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Mulching is the process or practice of covering the soil/ground to make more favorable conditions for plant growth, development and efficient crop production. Effects of different mulching materials on the productivity ...
Ecosystem based Adaptation Options against Salinity Intrusion in Freshwater Aquaculture System in Sundarban Delta of India

Chand, B.K.; Trivedi, R.K.; Rout, S.; Ghosh, S.K.; Beg, M.M.; Das, U.K.; Dubey, S.K. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Fish loss in freshwater ponds in Sundarban delta due to saline water intrusion during cyclones and storm surges is a serious climate induced risk for the farmers. This study tested whether problem can be solved through ...
Protein Metabolism in Swamp Buffalo

Thanh, Vo Thi Kim (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

The food for ruminants; forages and fibrous roughages, consist mainly of |3-linked polysaccharides such as cellulose, which cannot be broken down by mammalian digestive enzymes. Ruminant have therefore evolved a ...
Present Status of Shark Liver Oil Industry in Sri Lanka

Hirimuthugoda, N.Y.; Gunawardhana, H.G.T.N.; Gamage, G.S.; Pethiyagoda, N.A.; Gamage, Kumudu R. (Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)

Forty six shark species are known to be found in the seas around Sri Lanka and out of them six species are used to produce shark liver oil. Shark liver oil contains high levels of squalean and alkylglycerols (AKG) and ...

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