Disna Ratnasekera
YOU?
Author Swipe
View article: Physio-Chemical and Molecular Characterization of Salinity Stress in Wheat: Mitigation Approaches and Future Perspectives
Physio-Chemical and Molecular Characterization of Salinity Stress in Wheat: Mitigation Approaches and Future Perspectives Open
Wheat constitutes the backbone of global food supplies, and its production is directly linked to the food and nutritional security of the mounting population. Wheat is vulnerable to abiotic stresses like heat, salinity, and drought. These …
View article: One-year continuous observations of near-surface atmospheric water vapor stable isotopes at Matara, Sri Lanka, reveal a strong link to moisture sources and convective intensity
One-year continuous observations of near-surface atmospheric water vapor stable isotopes at Matara, Sri Lanka, reveal a strong link to moisture sources and convective intensity Open
Atmospheric water vapor stable isotopes are crucial for understanding hydrological cycle processes under climate change. This study presents the results from a year-long in situ monitoring of atmospheric water vapor stable isotopes (δ18O, …
View article: Exploring climate change impacts on morphology and phenology of common wild rice in Sri Lanka
Exploring climate change impacts on morphology and phenology of common wild rice in Sri Lanka Open
Exploring phenotypic plasticity and adaptive potential of natural populations of wild rice is crucial because of the recent drastic climatic changes. The wild progenitors of cultivated rice (O. rufipogon and O. nivara) provide an excellent…
View article: Phenological and morphological variations of Oryza rufipogon and O. nivara in Sri Lanka and their evolutionary implications
Phenological and morphological variations of Oryza rufipogon and O. nivara in Sri Lanka and their evolutionary implications Open
View article: A-year Continuous Observations of Near-Surface Atmospheric Water Vapor Stable Isotopes at Matara, Sri Lanka
A-year Continuous Observations of Near-Surface Atmospheric Water Vapor Stable Isotopes at Matara, Sri Lanka Open
Atmospheric water vapor stable isotopes are crucial for understanding hydrological cycle processes under climate change. This study presents a year-long in-situ monitoring of atmospheric water vapor stable isotopes (δ18O, δD) at Matara, Sr…
View article: Supplementary material to "A-year Continuous Observations of Near-Surface Atmospheric Water Vapor Stable Isotopes at Matara, Sri Lanka"
Supplementary material to "A-year Continuous Observations of Near-Surface Atmospheric Water Vapor Stable Isotopes at Matara, Sri Lanka" Open
View article: Exploring the Adaptability of Exotic Safflower(<i>Carthamus tinctorius</i> L.) as a Viable Oilseedfor Oil Scarcity
Exploring the Adaptability of Exotic Safflower(<i>Carthamus tinctorius</i> L.) as a Viable Oilseedfor Oil Scarcity Open
Safflower is a climate-resilient, quality oilseed with high resistance to water scarcity, soil salinity, and frost-prone areas, and it has a wide range of applications in daily life, ranging from food to pharmaceutical to industrial.Adapti…
View article: Characterization of chromosomal segment substitution lines developed in thegenetic background of rice variety K 343
Characterization of chromosomal segment substitution lines developed in thegenetic background of rice variety K 343 Open
In this study, BC3F2 convergent population [(K343*3/RML22 × K343*3/DHMAS) × K343] was constructed by marker-assisted backcross breeding using K343 as the recurrent parent. DHMAS and RML22 were used as donor parents for the rice blast resis…
View article: Discrimination of Mung Bean (<i>Vigna Radiata</i> L.)Genotypes Exposed to PEG-Induced Water DeficitReveals the Selection Criteria for ImprovedBreeding from Germinationto Seedling Development
Discrimination of Mung Bean (<i>Vigna Radiata</i> L.)Genotypes Exposed to PEG-Induced Water DeficitReveals the Selection Criteria for ImprovedBreeding from Germinationto Seedling Development Open
Mung bean is a valuable pulse crop that faces a considerable water shortage during its growth period (March-May).Hence, the study was formulated to determine the variability and diversity
View article: Phenological and morphological variations of Oryza rufipogon and O. nivara in Sri Lanka and their evolutionary implications
Phenological and morphological variations of Oryza rufipogon and O. nivara in Sri Lanka and their evolutionary implications Open
Phenological and morphological variation are widely viewed as a pivotal driver of ecological adaptation and speciation. Oryza rufipogon and O. nivara, the wild progenitors of cultivated rice, are most closely related and provide a unique s…
View article: ADAPTABILITY POTENTIAL OF JUSTICIA ADHATODA L. TO XERIC ENVIRONMENTS THROUGH ROOT MORPHOPHYSIOLOGICAL AND ARCHITECTURAL MODULATIONS
ADAPTABILITY POTENTIAL OF JUSTICIA ADHATODA L. TO XERIC ENVIRONMENTS THROUGH ROOT MORPHOPHYSIOLOGICAL AND ARCHITECTURAL MODULATIONS Open
View article: YIELD AND PHYSIOLOGICAL ASSESSMENT OF SESAME (SESAMUM INDICUM L.) VARIETIES IN RESPONSE TO PLANT GROWTH PROMOTERS
YIELD AND PHYSIOLOGICAL ASSESSMENT OF SESAME (SESAMUM INDICUM L.) VARIETIES IN RESPONSE TO PLANT GROWTH PROMOTERS Open
View article: Do the six types of Sri Lanka's Oryza comprise a domesticated-weed-wild complex?
Do the six types of Sri Lanka's Oryza comprise a domesticated-weed-wild complex? Open
Genetic studies of Domesticated-Weed-Wild Complexes (DWWC) have typically focused on one-way introgression of crop alleles into wild or weedy populations, with little consideration of the entire natural ecosystem. In Sri Lanka, DWWC is div…
View article: Weedy rice: An insight into genetic diversity and population structure for effective weed management
Weedy rice: An insight into genetic diversity and population structure for effective weed management Open
Weedy rice (Oryza sativa f. spontanea) is a conspecific weed that has invaded cultivated rice fields, effectively adapted to modern management practices, leading to substantial yield losses and reduced harvest quality. The understanding of…
View article: COB YIELD, NUTRITIONAL QUALITY AND HERBAGE PRODUCTIVITY OF BABY CORN AS INFLUENCED BY IRRIGATION AND INTEGRATED NUTRIENT FERTILIZATION
COB YIELD, NUTRITIONAL QUALITY AND HERBAGE PRODUCTIVITY OF BABY CORN AS INFLUENCED BY IRRIGATION AND INTEGRATED NUTRIENT FERTILIZATION Open
The optimization of plant nutrients and irrigation regimes hold potential to boost maize growth, cob yield, herbage biomass and revenue generation of maize.A field study was conducted to optimize irrigation and fertilization management for…
View article: New Chlorinated Metabolites and Antiproliferative Polyketone from the Mangrove Sediments-Derived Fungus Mollisia sp. SCSIO41409
New Chlorinated Metabolites and Antiproliferative Polyketone from the Mangrove Sediments-Derived Fungus Mollisia sp. SCSIO41409 Open
Two new chlorinated metabolites, 8-chlorine-5-hydroxy-2,3-dimethyl-7-methoxychromone (1) and 3,4-dichloro-1H-pyrrole-2,5-dione (3), and eight known compounds (2 and 4–9) were isolated from the mangrove sediments-derived fungus Mollisia sp.…
View article: Anther culture performances of selected <em>Indica</em> rice varieties in Sri Lanka: ability of callus induction and plant regeneration
Anther culture performances of selected <em>Indica</em> rice varieties in Sri Lanka: ability of callus induction and plant regeneration Open
Tropical Agricultural Research and Extension is a peer-reviewed international scientific journal covering a wide range of subject areas in tropical and subtropical agriculture published quarterly by the Faculty of Agriculture, University o…
View article: Innovative strategic planning for a sustainable green university: University of Ruhuna, Sri Lanka
Innovative strategic planning for a sustainable green university: University of Ruhuna, Sri Lanka Open
University of Ruhuna (UOR) consists of ten faculties thatspread over 366 acres in six different locations in the Southern Province ofSri Lanka. Economically viable and mutually benefited public-privatepartnerships, which ensure the common …
View article: Phytohormones as Growth Regulators During Abiotic Stress Tolerance in Plants
Phytohormones as Growth Regulators During Abiotic Stress Tolerance in Plants Open
Phytohormones (PHs) play crucial role in regulation of various physiological and biochemical processes that govern plant growth and yield under optimal and stress conditions. The interaction of these PHs is crucial for plant survival under…
View article: Phenotypic Characterization of Oryza nivara (Sharma et Shastry) Collected from Different Ecological Niches of Sri Lanka
Phenotypic Characterization of Oryza nivara (Sharma et Shastry) Collected from Different Ecological Niches of Sri Lanka Open
Information on the genetic diversity of wild rice species in Sri Lanka is relatively meagre, though it plays a key role in crop improvement programs of cultivated rice (Oryza sativa L.). The present study was carried out to identify the mo…
View article: Adaptation Strategies to Improve the Resistance of Oilseed Crops to Heat Stress Under a Changing Climate: An Overview
Adaptation Strategies to Improve the Resistance of Oilseed Crops to Heat Stress Under a Changing Climate: An Overview Open
Temperature is one of the decisive environmental factors that is projected to increase by 1. 5°C over the next two decades due to climate change that may affect various agronomic characteristics, such as biomass production, phenology and p…
View article: Functional trait diversity of wild rice species in Sri Lanka: implications for field identification and application
Functional trait diversity of wild rice species in Sri Lanka: implications for field identification and application Open
The Journal of the National Science Foundation of Sri Lanka publishes the results of research in all aspects of Science and Technology. The journal also has a website at http://www.nsf.gov.lk/. 2021 Impact Factor: 0.682The JNSF provides im…
View article: Potential Role of Plant Growth Regulators in Administering Crucial Processes Against Abiotic Stresses
Potential Role of Plant Growth Regulators in Administering Crucial Processes Against Abiotic Stresses Open
Plant growth regulators are naturally biosynthesized chemicals in plants that influence physiological processes. Their synthetic analogous trigger numerous biochemical and physiological processes involved in the growth and development of p…
View article: Salinity Stress in Maize: Effects of Stress and Recent Developments of Tolerance for Improvement
Salinity Stress in Maize: Effects of Stress and Recent Developments of Tolerance for Improvement Open
Soil salinity has emerged as a global threat to sustainability of farming systems by deteriorating the quality and productivity of crops particularly in the coastal regions of the world. Although, as a C4 plant, maize (Zea mays L.) has abi…
View article: Salinity Stress in Wheat (Triticum aestivum L.) in the Changing Climate: Adaptation and Management Strategies
Salinity Stress in Wheat (Triticum aestivum L.) in the Changing Climate: Adaptation and Management Strategies Open
Wheat constitutes pivotal position for ensuring food and nutritional security; however, rapidly rising soil and water salinity pose a serious threat to its production globally. Salinity stress negatively affects the growth and development …
View article: Ornamental Plant Efficiency for Heavy Metals Phytoextraction from Contaminated Soils Amended with Organic Materials
Ornamental Plant Efficiency for Heavy Metals Phytoextraction from Contaminated Soils Amended with Organic Materials Open
Accumulation of heavy metals (HMs) by ornamental plants (OPs) from contaminated agriculture soils is a unique technique that can efficiently reduce the metal load in the food chain. Amaranthus tricolor L. has attractive characteristics acq…
View article: Normalized Difference Vegetation Index and Chlorophyll Content for Precision Nitrogen Management in Durum Wheat Cultivars under Semi-Arid Conditions
Normalized Difference Vegetation Index and Chlorophyll Content for Precision Nitrogen Management in Durum Wheat Cultivars under Semi-Arid Conditions Open
To impart sustainability to modern intensive farming systems, environmental pollution caused by nitrogenous fertilizers in needs to be reduced by optimizing their doses. To estimate the grain yield and nutrtional quallity of wheat, the nor…
View article: Consequences and Mitigation Strategies of Heat Stress for Sustainability of Soybean (<i>Glycine max</i>L. Merr.) Production under the Changing Climate
Consequences and Mitigation Strategies of Heat Stress for Sustainability of Soybean (<i>Glycine max</i>L. Merr.) Production under the Changing Climate Open
Increasing ambient temperature is a major climatic factor that negatively affects plant growth and development, and causes significant losses in soybean crop yield worldwide. Thus, high temperatures (HT) result in less seed germination, wh…
View article: An Overview of Current Status and Future Prospects of Grassland Resource in Sri Lanka
An Overview of Current Status and Future Prospects of Grassland Resource in Sri Lanka Open
In Sri Lanka, nearly 12,000 km2 of the total land area is under grass (Pemadasa, 1990). Use of grassland for livestock through traditional way goes back a number of centuries. Almost 20% of the countryside of the earth is covered by grassd…
View article: Pests and Diseases of Cinnamon (Cinnamomum zeylanicum Blume)
Pests and Diseases of Cinnamon (Cinnamomum zeylanicum Blume) Open
Incidence and severity of pests and diseases in cinnamon vary with growth stage. Young leaves at the nursery stage are susceptible to pests and diseases, leading to higher motility rates. Over 70 species of insect pests were reported from …