A5076022925- Rice Cultivation and Yield Improvement
- Plant nutrient uptake and metabolism
- Plant Micronutrient Interactions and Effects
- Heavy metals in environment
- Soil Carbon and Nitrogen Dynamics
- Legume Nitrogen Fixing Symbiosis
- Climate change impacts on agriculture
- Agronomic Practices and Intercropping Systems
- Agricultural Science and Fertilization
- Phosphorus and nutrient management
- Pasture and Agricultural Systems
- Urban Agriculture and Sustainability
- Crop Yield and Soil Fertility
- Heavy Metals in Plants
- Irrigation Practices and Water Management
- Plant Pathogenic Bacteria Studies
- Plant responses to water stress
- Horticultural and Viticultural Research
- Ruminant Nutrition and Digestive Physiology
- Arsenic contamination and mitigation
- Rabies epidemiology and control
- Agricultural Systems and Practices
- Soil and Water Nutrient Dynamics
- Plant-Microbe Interactions and Immunity
- Genetics and Plant Breeding
University of Peradeniya
2016-2025
The University of Western Australia
2014-2024
University of Göttingen
2017-2022
Saga University
2011
Kyoto Sangyo University
2011
Institute of Plant Biology
2011
Kagawa University
2011
Resource shortages, driven by climatic, institutional and social changes in many regions of Asia, combined with growing imperatives to increase food production whilst ensuring environmental sustainability, are driving research into modified agricultural practices. Well-tested cropping systems models that capture interactions between soil water nutrient dynamics, crop growth, climate farmer management can assist the evaluation such new One model is Agricultural Production Systems Simulator...
ABSTRACT Two key plant adaptations for phosphorus (P) acquisition are carboxylate exudation into the rhizosphere and mycorrhizal symbioses. These target different soil P resources, presumably with carbon costs. We examined effect of inoculation arbuscular fungi (AMF) on amount carboxylates uptake 10 species low‐P adapted Kennedia grown 23 weeks in sand. Inoculation decreased some (up to 50%), dry weight (21%) increased content (23%). There was a positive logarithmic relationship between...
Light is critical for supplying carbon to the energetically expensive, nitrogen-fixing symbiosis between legumes and rhizobia. Here, we show that phytochrome B (phyB) part of monitoring system detect suboptimal light conditions, which normally suppress Lotus japonicus nodule development after Mesorhizobium loti inoculation. We found number nodules produced by L. phyB mutants significantly reduced compared with WT Miyakojima MG20. To explore causes other than photoassimilate production,...
Societal Impact Statement Cinnamomum zeylanicum (“Ceylon cinnamon/true cinnamon”) is native to Sri Lanka. In addition generating significant foreign income, over 350,000 families are involved in the cinnamon industry, demonstrating its long‐established role Lankan society. The spice constitutes many bioactive compounds with antioxidant, antimicrobial, and insecticidal properties, therapeutic preventive effects against diseases disorders. New uses of continue emerge, this review, we discuss...
Many Australian legumes have evolved in low-phosphorus (P) soils and low-rainfall areas. Therefore a study was made of the interaction soil [P] water availability on growth, photosynthesis, water-use efficiency (WUE) P nutrition two native with pasture potential, Cullen australasicum C. pallidum, widely grown exotic legume, lucerne (Medicago sativa).
Abstract The presence of excessive arsenic (As) in paddy fields poses a significant risk to human health due its accumulation rice grains. However, the current level As Sri Lankan remains unclear. Therefore, this research aims assess distribution exchangeable concentration and investigate effects agro-climatic zones (ACZs), soil orders, water sources on fields. For purpose, 7,154 samples were collected from using stratified random sampling method representing six ACZs, three sources. Arsenic...
Maize is the second most widely cultivated cereal in Sri Lanka. A field survey conducted from 2021 to 2022 assessed present status and explored possibilities of increasing maize production North Central Province (NCP) pre-tested structured questionnaire was administered (n=56) together with farmer observations (n=28), key informant interviews (KII; n=10), focus group discussions (FGD; n=5), monitoring selected fields practices at bi-weekly intervals (n=3). Data were analyzed using chi-square...
Summary Proteaceae species in south‐western Australia thrive on phosphorus‐impoverished soils, employing a phosphorus‐mining strategy involving carboxylate‐releasing cluster roots. Some develop symptoms of phosphorus toxicity at slightly elevated soil concentrations, due to their low capacity down‐regulate uptake. In contrast, Chile, e.g. E mbothrium coccineum J.R. Forst. & G. Forst., occur volcanic which contain high levels total phosphorus, but availability is low. We hypothesised that...
Even though the concentrations of total cadmium (Cd) in paddy soils from different countries have been reported, exchangeable Cd (Ex-Cd) concentration these are unknown despite its importance agriculture. This study was conducted with a 5,460 soil samples collected Sri Lanka, representing six agro-climatic zones (ACZ), orders, and three irrigation types. The extracted using 0.01 M CaCl2 analyzed an inductively coupled plasma-mass spectrophotometry (ICP-MS). Ex-Cd ranged between <0.31-163 μg...
More than 60% of phosphorus (P) taken up by rice (Oryza spp) is accumulated in the grains at harvest and hence exported from fields, leading to a continuous removal P. If P removed fields not replaced inputs then soil stocks decline, with consequences for subsequent crops. Breeding genotypes low concentration could be strategy reduce maintenance fertilizer needs slow depletion input systems. This study aimed assess variation grain concentrations among across diverse environments evaluate...