Neelamanie Yapa

Neelamanie Yapa
Rajarata University of Sri Lanka · Faculty of Applied Sciences

Doctor of Philosophy

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26
Publications
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111
Citations

Publications

Publications (26)
Article
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Aquatic pollution is considered a major threat to sustainable development across the world, and deterioration of aquatic ecosystems is caused usually by harmful algal blooms (HABs). In recent times, HABs have gained attention from scientists to better understand these phenomena given that these blooms are increasing in intensity and distribution wi...
Article
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As a main component of soil microbiota arbuscular mycorrhizal fungi (AMF) play a benefi cial role in the agro-ecosystems. Introduction of AMF inoculum as a biofertilizer to the rice cultivation system is one of the environmentally healthy solutions that may increase crop productivity and yield, when compare to the non-AMF relationships. Within an e...
Article
Full-text available
Arbuscular mycorrhizal fungi (AMF) are soil-borne fungi that form mutualistic symbiosis with plant roots, and can signifi cantly improve plant nutrient uptake and increase resistance to several biotic and abiotic stresses. Though most rice cultivation systems involved submerged growing conditions, researchers are exploring the potential of AMF colo...
Article
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Environmental changes and heavy metal pollution are some of the consequences of anthropogenic activities. Many ecosystems, including edaphic ecosystems, suffer from the effects of pollution. The accurate assessment of soil heavy metal contamination leads to better approaches for remediating soils. The exploration of different ways, including biolog...
Article
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Although biofertilizers have been used for an exceptionally long time, challenges still remain in using them to phase out chemical fertilizers. Chemical fertilizers generate environmental pollution and negatively impact beneficial organisms as well as human and animal wellbeing, causing a paradigm shift towards safer improved biofertilizers. Hence,...
Article
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Chemical fertilizers have been extensively used in Sri Lanka, and they have contributed to the pollution of groundwater and soil. Therefore, a field experiment was conducted to reduce the potential risk of toxic metal contamination of rice farming through sustainable nutrient management, with the scope of replacing the conventional chemical fertili...
Conference Paper
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Cereal production is an important source of food and is expected to play a key role in meeting the needs of the world population. Maize is a major cereal faced on drought induced yield losses. AMF assisted maize to withstand moderate drought stress and to recover rapidly when irrigation was restored. Plants colonizing arbuscular mycorrhizae might i...
Article
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Mycorrhizae are symbiotic associations between a soil-borne fungus and plant root. Arbuscular mycorrhizal fungi (AMF) are the most common type of mycorrhizal associations occurring in plants. AMF can increase plant growth mainly by improving nutrient uptake and making plants resistant to several biotic and abiotic stresses. Thus, AMF could be refer...
Article
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Alterations of healthy soil properties can result from land degradation. However, application of some grass species that are colonized with arbuscular mycorrhizal fungi (AMF), such as vetiver (Chrysopogon zizanioides L.), can mitigate the negative impacts of soil degradation. The present study evaluated the ability of AMF-colonized vetiver to impro...
Article
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Rice is considered as the most important food crop in Sri Lanka and most of the Asian countries. Over the past three decades, rice farmers have become increasingly dependent on synthetic chemical phosphorous fertilizers, mainly triple super phosphate (TSP) as a source of phosphorous (P). However, dramatically increasing costs, serious environmental...
Article
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A large number of comparison studies of soybean production in the world revealed that the organic production was equivalent to, and in many cases better than, conventional. In the drier climates organic systems had higher yields than conventional. When comparing the profitability of farming systems, it was found that organic cropping systems were a...
Article
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Aims: This study was aimed to compare aquatic weed, biochar and compost carrier substances for the development of effective pelleted biofertilizer for paddy (Oryza sativa L.) using co-inoculated bacteria, Azospirillum sp., Pseudomonas fluorescens and arbuscular mycorrhizal fungi (AMF). Place and Duration of Study: Faculty of Applied Sciences, Rajar...
Article
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Pot experiment was carried out in dry zone of Sri Lanka in the year 2015 with the aim of investigating the effects of organic manure, biofertilizers and synthetic fertilizer application on growth, yield and seed nutrient quality of soybean (Glycine max L.). Treatments were field soil only (T0), field soil and 5% biochar (T1), field soil and 5% cow...
Article
With the climatic changes, occurrence of drought has become a major problem in agriculture, which leads to scarcity of surface as well as groundwater which negatively affects the physiological responses of plants. Therefore, farmers need to find ways to preserve groundwater for dry years. Groundwater can be preserved for dry years by reducing groun...
Article
Contamination of water with heavy metals is a rising concern for human health and the environment. Removal of heavy metal contaminants in soil- water environment is challenging. Therefore, feasible and effective methods are needed to remove those contaminants from soil and water. Arbuscular mycorrhizal fungi (AMF) are specific rhizospheric microorg...
Article
Glyphosate [N-(phosphonomethyl)-glycine] is a broad-spectrum non-selective herbicide that is commonly used to control perennial weeds in agriculture. Glyphosate losses to the environment are undesirable because of possible environmental hazards - e.g. soil and water contamination. It is important to develop methods for enhancing glyphosate degradat...
Conference Paper
Full-text available
Rice (Oryza sativa billion people in Asia and hundreds of millions in Africa and Latin America. Understanding the effects of eco-farming practices for rice growing would be important concepts of sustainability. Therefore, this study was carried out to evaluate the effects of the organic amendments, phosphate rock and the microbial inoculant applica...
Article
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Sri Lanka has an enormous diversity of medicinal plants, and most are in dry zone forests. Mihintale sanctuary has some of the widely used medicinal plants in our ayurvedic system. Vesicular Arbuscular mycorrhiza (VAM) is the most abundant form of mycorrhiza and, plays a very important role in enhancing plant growth by increased nutrient uptake. Th...
Conference Paper
Full-text available
Maize is the third most important cereal under global cultivation, after wheat and rice. Maize grain yields in the temperate developed world average 8.2 ton/ha, vs. 3.5 ton/ha in tropical less developed countries. In both production environments, drought is the most important abiotic stress constraining and destabilizing maize grain production. In...

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Project (1)
Project
Main objective of this study is 1. To enhance and segment Mycorrhiza colonies in a specimens of roots 2. To formalized a efficient and accurate method to quantify the segmented Mycorriza colonies.