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SNP‑based discovery of salinity‑tolerant QTLs in a bi‑parental population of rice (Oryza sativa)

Gimhani, D. R; Gregorio, G.B.; Kottearachchi, N.S.; Samarasinghe, W. L. G. (© Springer, 2016)

Breeding for salt tolerance is the most promising approach to enhance the productivity of saline prone areas. However, polygenic inheritance of salt tolerance in rice acts as a bottleneck in conventional breeding for ...

In silico analysis of the fragrance gene (badh2) in Asian rice (Oryza sativa L.) germplasm and validation of allele specific markers

Withana, W.V.E.; Kularathna, R.M.R.E; Kottearachchi, N.S.; Kekulandara, D.S; Weerasena3, J.; Steele, K.A. (Plant Genetic Resources: Characterization and Utilization, 2020-01-08)

Badh2 of rice is considered to be the major gene responsible for the fragrance in rice. The wild type badh2 allele encodes betaine aldehyde dehydrogenase 2 (BADH2) enzyme while the mutated version of badh2 gene encodes ...

EXPLORATION OF RELATIONSHIP BETWEEN FRAGRANT GENE AND GROWTH PERFORMANCES OF FRAGRANT RICE (Oryza sativa L.) SEEDLINGS UNDER SALINITY STRESS

Wijerathna, Y M A M; Kottearachchi, N S; Gimhani, D R; Sirisena, D N (Journal of Experimental Biology and Agricultural Sciences, 2014-02)

Fragrant rice is associated with poor agronomic traits and low tolerability to salt stress. Present study was conducted to examine the relationship between fragrant intensity of Sri Lankan rice germplasms and their ...

Comparative Analysis of Salinity Responsive Candidate Gene Expression in Selected Sri Lankan Rice Varieties

Gimhani, D.R.; Vergara, G.; Gregorio, G.B.; Kottearachchi, N.S. (2015)

Studying of expression dynamics of salt responsive candidate genes under different genetic background of rice is important to develop resilient salt tolerant rice varieties. The present study was focused to assess ...

EFFECT OF BIOLOGICAL AGENTS AND BOTANICALS IN CONTROLLING ROOT KNOT NEMATODES, MELOIDOGYNE SPP., IN NICOTIANA TABACUM

Motha, KF; Abeysekara, R.; Kottearachchi, NS (Faculty of Agriculture, University of Ruhuna, 2010-02-19)

A study was conducted to investigate the effectiveness of Pseudomonas fluorescens and Trichoderma viride and two botanicals; ground neem seed and tobacco waste dust for the control of Root-Knot Nematodes (RKN) in Tobacco. ...

Assessment of Salinity Tolerance and Analysis of SSR Markers Linked with Saltol QTL in Sri Lankan Rice (Oryza sativa) Genotypes

Dahanayaka, B. A.; Gimhan, D. R; Kottearachch, N. S.; Samarasighe, W. L. G. (American Journal of Experimental Agriculture, 2015)

Aim: This research was aimed at assessing Sri Lankan rice varieties for the salinity tolerance using morphological traits and to analyze the SSR markers closer to Saltol QTL of the chromosome 1 to be used in rice ...

Utilization of SNP-based Highly Saturated Molecular Map of a RIL Population for the Detection of QTLs and Mining of Candidate Genes for Salinity Tolerance in Rice

Abhayawickrama, B.P.; Gimhani, D.R.; Kottearachchi, N.S.; Herath, V. (The Journal of Agricultural Sciences - Sri Lanka, 2020)

Purpose : Previously, QTL hotspots were identified for salt tolerance from a RIL population of At354 x Bg352, under a temperature-controlled environment at the International Rice Research Institute, Philippine. However, ...

MICROSATELLITE MARKER BASED HYBRIDITY ASSESSMENT FOR SALINITY TOLERANCE IN RICE

Gimhani, D. R.; Kottearachchi, N. S.; Samarasinghe, W. L. G. (The Journal of Agricultural Sciences,, 2007)

Development salinity tolerant rice varieties have been a prioritized research area in rice breeding programs in Sri Lanka. Present study was initiated with the cross of At354, a salt tolerant parent and Bg352, a salt ...

MOLECULAR EVALUATION OF POTENTIAL RESISTANCE TO PAPAYA RING SPOT VIRUS IN MOUNTAIN PAPAYA (VASCONCELLEA CUNDINAMARCENSIS)

Rajapakshe, Bhavani N.; Kottearachchi, Nisha S.; Wickramarachchi, Ravin T.; Amalka, Thilini (Pakistan Phytopathological Society, 2017)

Papaya Ring Spot virus (PRSV) is a devastating viral disease in papaya cultivation in Sri Lanka. It was reported that mountain papaya (Vasconcellea cundinamarcensis) exhibits resistance to PRSV. Therefore, this study was ...

APPLICATION OF DNA MARKERS FOR THE DETECTION OF AMYLOSE CONTENT IN SRI LANKAN RICE (ORYZA SATIVA L.) VARIETIES

Kottearachchi, N.S.; Peiris, R.K.; Rebeira, S. (Asian J Agri Biol, 2014)

Grain quality improvement of rice is considered as prioritized research area in rice breeding programs in Sri Lanka. Amylose Content (AC) is a key determinant of end quality of rice. Amylose Content is controlled by ...

QTL MAPPING FOR SALINITY TOLERANCE USING AN ELITE RICE (Oryza sativa) BREEDING POPULATION

DAHANAYAKA, B.A.; GIMHANI, D.R.; KOTTEARACHCHI, N.S.; SAMARASIGHE, W.L.G. (SABRAO Journal of Breeding and Genetics, 2017-02-17)

A recombinant inbred line (RIL) population was previously developed with two high yielding rice varieties, At354, a salt tolerant parent and Bg352, a salt susceptible parent aiming at identifying salinity tolerant QTLs ...

CCTV Based Parking Occupancy Tracker Using Computer Vision

Perera JMSMG; Wickramarachchi WHC (2019)

With increasing the number of vehicles over the years, parking has become an important issue particularly in commercial environments such as shopping malls, schools, government offices, and airports. Finding a vacant ...

IoT and Fuzzy Logic Based Smart Mirror for the Hospitality Industry

Suraweera SAPD; Nagahamulla HRK; Vidanagama VGTN (2019)

Automation has been a best topic in the hospitality industry over the past few months. From AI concierge’s electronic butlers to fully intelligent hotels, hotels have been embracing this technology to improve their ...

Implementing a Data Infrastructure for Telecommunication Provider: A Case Study

Vithanage LS; Vidanagama VGTN (2019)

Data infrastructure is the key asset of the Telecom service provider to manage its operations. This paper showcases a case study with Design, Development and Implementation of a Data Infrastructure for a mobile operator ...

A Study on Information Security Gaps of Electronic Data Interchange (Edi) in Logistics Industry, Sri Lanka

Suraweera SAPD; Arudchelvam T (2019)

Electronic Data Interchange (EDI) plays a major role in improving business prospects. EDI usage is expected to increase in the immediate future. This high growth in a potentially paperless environment presents a variety ...

A Simulation on Unloading, Loading and Warehousing to Reduce the Waiting Times of the Processes

Samarawickrama IDW; Dilanthi MGS; Perera MKPVR (2019)

Loading, unloading and warehousing are three critical processes for a manufacturing organization. Therefore, reducing cycle and waiting times related to those are vital in improving its performance. This study aimed to ...

A Simulation on the Service Performance of Out Patient Department: A Case Study

Ranathunga RARY; Wijesiri MKNA; Rathnayaka RMHP; Madhushan WAP; Rambandara RDSS (2019)

This study focused on improving the performance of an Out Patient Department in a public hospital in Sri Lanka. There were two basic processes at the department namely; ticketing and channeling. The patients were first ...

A Simulation of the Service Performance of a Supermarket: A Case Study

Herath HMKM; Ramanayake RMAMK; Kaushala LMK; Ekanayake H; Rambandara RDSS (2019)

Simulation of waiting lines has become a widely studied research area of many researchers. Supermarket waiting lines are foremost among those experienced daily by ordinary Sri Lankans. Waiting in queues wastes the time ...

Web Based Procurement Management System

Perera JMSMG; Vidanagama VGTN (2019)

Procurement Management System is a formal method by which products (goods or services) are acquired for a project from external suppliers specifically in the Procurement Department Process. The system entails managing ...

Smart Helmet for Mining Industry with the Detection of Unsafe Gases, High Temperature and the Dark Areas

De Silva KKKMC; Vidanagama VGTN (2019)

Workers in high risk jobs like building & construction workers, fire men, miners etc. are frequently facing dangerous situations. Safety of these workers is an utmost concern of the employers. Equipment and tools that ...

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