Centre for Information Communication Technology

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Web enabled data warehouse: banking system case study
(Osmania Univesrsity-India, 2004) Sanga, Camilius; Elias, Mturi
This thesis is an explorative study of the early implementations of the corporate data warehouse that was intended for managers, executives, business analysts, and a few other high-level employees as a tool for analysis and decision making. Information from the data warehouse was delivered to this group of users in a client/server environment. But today’s data warehouses are no longer confined to a select group of internal users. Under present conditions, corporations need to increase the productivity of all the members in the corporation’s value chain. Useful information the corporate data warehouse must be provided not only to the employees but also to customers, suppliers and all other business partners. So today’s business climate, you need to open your data warehouse to the entire community of users in the value chain, perhaps also to the general public. This is a tall order. How can you accomplish this requirement to serve information to thousands of users in 24*7 mode? How can you do this without incurring exorbitant costs for information delivery? The Internet along with Web technology is the answer. The web will be your primary information delivery mechanism. When you bring your data warehouse to the Web, from the point of view of the users, the key requirements are: self-service data access, interactive analysis, high data quality, high availability and performance, zero-administration client (thin client technology such as Java applets), tight security and unified metadata.
A warehouse or local cache for web data
(Sokoine University of Agriculture, 2005) Ayubu, Jacob
The internet web is becoming important resource as a source of information. Various companies make the information from their databases available through search web page forms. The information ranges from indexed documents to product information. This information becomes more valuable if can be available to other software applications for further processing. In this project I present the efficient mechanism of extracting web data. The approach which I am using is based on anal) sing the patterns of the HTML tags. The customised general model of the web page is produced and is used for extracting data produced by subsequent web queries. The data extracted is populated to the database. The motivation behind this project is that the information is available to other software applications and hence can be used for decision making systems.
Ommerce alerter for web information changes & semi automatic web wrapper
(University of Essex, 2005) George, Henry
Data extraction is an area of computer science that will come to play an increasingly important role in the near future. This project provides two separate software applications that can help in the understanding of the various aspects of data extraction and the analysis of the different problems and tentative solutions. First is the E-Commerce alerter system, a program which is developed to monitor the change of products on an E-commerce site (www.eBay.com Auctions). The program extracts items from the www.eBay.com site and stores them in a Relational database. It is scheduled to check for updates in information on the site every twelve hours. Also, it monitors the stored data for the purpose of reporting updates to the users who request them. If any changes are found, the user is informed via electronic mail. Secondly, a semi automatic wrapper has been developed, which is a too! to assist system developer to wrap HTML pages into XML Documents. The tool helps in extracting the items of interest from an hind source page. The extracted data can he used by another application because it is stored in XML formal, which is well structured. The technique used in developing semi automatic wrapper is tag Set Progression Grid (TpGrid) which is the fingerprint representation of an hind page.
Role of food security groups’ networks in poverty reduction: a case study of Chamwino district, Dodoma region
(Sokoine University of Agriculture., 2007) Madaiha, Rasel
This study focused on the role of food security groups’ networks in poverty reduction in Chamwino district, Dodoma region Tanzania. The objectives of the study were to a) describe FGNs in terms of membership, activities and sustainability; b) identify the roles and extent to which Food Security Groups Networks have contributed towards poverty reduction: c) identify factors of success or failure and best practices in Food Security Groups Networks; d) identify and describe strategics for strengthening FSGNs. The study population consisted of all members of FSGNs who had participated in FSGNs for a minimum of three years. Data for this study were obtained using a case study research design whereby purposive sampling was used to select three villages out of 13 villages. The criteria for selecting the three villages were existence of FSGN in each of the villages, presence of a complete Community Cereal Bank building in a particular village and accessibility. A combination of quantitative and qualitative methods was used to collect data for this study, 'fools such as personal interviews, in depth interviews. documentary review, observations and focused group discussion were used to collect data. Qualitative data were analysed using content analysis whereby quantitative data mainly from structured questionnaires were analysed using the Statistical Package for Social Sciences (SPSS). The main findings of this study in relation to poverty reduction arc summarized as follows; the FSGNs have played different roles including increasing the capacity of members to access the extension services and empowering FSGN members in the areas of knowledge, decision making, finance and entrepreneurial
Role of food securty groups network in poverty reduction:A case study of Chamwino district, Dodoma region
(Sokoine University of Agriculture., 2007) Madaha, Rasel
This study focused on the role of food security groups’ networks in poverty reduction in Chamwino district, Dodoma region Tanzania. The objectives of the study were to a) describe FGNs in terms of membership, activities and sustainability; b) identify the roles and extent to which Food Security Groups Networks have contributed towards poverty reduction: c) identify factors of success or failure and best practices in Food Security Groups Networks; d) identify and describe strategics for strengthening FSGNs. The study population consisted of all members of FSGNs who had participated in FSGNs for a minimum of three years. Data for this study were obtained using a case study research design whereby purposive sampling was used to select three villages out of 13 villages. The criteria for selecting the three villages were existence of FSGN in each of the villages, presence of a complete Community Cereal Bank building in a particular village and accessibility. A combination of quantitative and qualitative methods was used to collect data for this study, 'fools such as personal interviews, in depth interviews. documentary review, observations and focused group discussion were used to collect data. Qualitative data were analysed using content analysis whereby quantitative data mainly from structured questionnaires were analysed using the Statistical Package for Social Sciences (SPSS). The main findings of this study in relation to poverty reduction arc summarized as follows; the FSGNs have played different roles including increasing the capacity of members to access the extension services and empowering FSGN members in the areas of knowledge, decision making, finance and entrepreneurial
Examining a technology acceptance model of internet usage by academics within Thai Business Schools
(Victoria University, Melbourne, Australia, 2007) Kripanont, Napaporn
Information Technology has been a significant research area for some time, but its nature has changed considerably since the Internet became prominent just over a decade ago. Many researchers have studied and proposed theories and models of technology acceptance in order to predict and explain user behaviour with technology to account for rapid change in both technologies and their environments. Each theory or model has been proposed with different sets of determinants and moderators and most of them have been developed in the U.S. It is therefore questioned whether the theories and models of technology acceptance that have been developed, modified, and extended in the U.S. can be used in other countries, especially in Thailand. It is also questioned whether there might be other determinants and moderators that also play important roles in this specific environment. This thesis (1) reviewed literature in respect of nine prominent theories and models, (2) reviewed previous literature about IT acceptance and usage within four contexts of study, (3) investigated the extent to which academics use and intend to use the Internet in their work, (4) investigated how to motivate academics to make full use of the Internet in their work, (5) investigated to what extent using the Internet helps in improving academics’ professional practice, professional development and quality of working life, (6) formulated a research model of technology acceptance regarding Internet usage by Thai academics, and (7) generated and validated the research model that best describes Thai academics’ Internet usage behaviour and behaviour intention. These last two objectives represent the main focus of the thesis. Questionnaire survey method was used to collect primary data from 927 academics within Business Schools in 20 Public Universities in Thailand. The survey yielded 455 usable questionnaires, with a response rate of 49%. Statistical analysis methods and Structural Equation Modelling with AMOS version 6.0 were used to analyse data. The research model was formulated with five core determinants of usage and up to nine moderators of key relationships. It was then tested and modified, the final modified model evidenced by goodness of fit of the model to the data, explained 31.6% (Square Multiple Correlation) of the variance in usage behaviour in teaching, 42.6% in usage behaviour in other tasks, 55.7% in behaviour intention in teaching and 59.8% in behaviour intention in other tasks. From the Findings, three core determinants: perceived usefulness, perceived ease of use and self-efficacy significantly determined usage behaviour in teaching. Two core determinants: perceived usefulness and self-efficacy significantly determined usage behaviour in other tasks. Finally, usage behaviour significantly influenced behaviour intention. In addition three moderators: age, e-university plan and level of reading and writing, impacted the influence of key determinants toward usage behaviour. Only two moderators: age and research university plan, impacted the influence of usage behaviour toward behaviour intention. The rest including gender, education level, academic position, experience and Thai language usage did not impact the influence of the key determinants toward usage behaviour and did not impact the influence of usage behaviour toward behaviour intention. Consequently, the final modified research model which is called the “Internet Acceptance Model” or “1AM” has the power to explain and predict user behaviour in a Thai Business Schools environment. A thorough understanding of the model may help practitioners to analyse the reasons for resistance toward the technology and also help them to take efficient measures to improve user acceptance and usage of the technology.
Effectiveness of hiv/aids campaigns on sexual behaviour among the youths in Bunda district, Tanzania
(Sokoine University of Agriculture, 2011) Lukuba, Zilipa Zabron
Despite campaigns against HIV/AIDS, youths continue to be affected disproportionally by the pandemic. Therefore, there is a need of measuring the effectiveness of HIV/AIDS campaigns among the youths since there is no cure of HIV/AIDS infection. The general objective of this study was to determine the effectiveness of HIV/AIDS campaigns on sexual behaviour among the youths in Bunda District, Tanzania. The specific objectives were documentation of main messages of campaigns on sexual behaviour among the youths; determination of the attitude of youths towards campaigns against IIIV/AIDS, assessment of the level of awareness about HIV/AIDS; assessment of their sexual behaviour; and determination of the correlation among the altitude towards campaigns against HIV/AIDS, knowledge about HIV/AIDS. The study adopted a cross-sectional design and a sample of 142 respondents was used. Data were collected through questionnaire - based interviews. 8 Focus Group Discussions and key informant interviews. The Statistical Package for Social Sciences (SPSS) Version 12 was used to analyse the data. Descriptive statistics, likert scales and correlation of variables were used to gauge levels of risky sexual behaviour, misconceptions about means of HIV/AIDS transmission, level of awareness about IIIV/AIDS, attitude of youths towards campaigns against HIV/AIDS, and attitude towards use of condoms. The major findings indicate that the main messages for HIV/AIDS campaigns were about HIV/AIDS transmission, VCT, and HIV infection prevention. The overall attitude towards HIV/AIDS was positive (30,5 out of 50.0); the overall awareness was high (39.2 out of 50.0); and the overall attitude towards condom use was 38.7 out of 50.0. The correlation between attitude towards campaigns against HIV/AIDS and sexual behaviour was not significant (p = 0.712). In view of the conclusion it is recommended that HIV/AIDS control programmes should measure the effectiveness of their campaigns against HIV/AID so as to enable them to come up with interventions for HIV/AIDS prevention.
Calibration of LiDAR histogram databases using a non-linear mathematical model
(University of Dar es Salaam, 2011) Nyarusanda, Linus
The airborne laser scanning technology (also known as Light Detection and Ranging- LiDAR) in Finland has been proved to be the efficient remote sensing technique used for forest data collection. The data obtained from this technology is used for pre diction of forest, stand characteristics for different forest inventories. Using airborne Laser scanning for the new inventory is very expensive. However as different forests have been laser scanned there is a need of utilizing such previous databases in new in ventory areas. Since the new site and the database sites have been laser scanned with different scanning instruments with different flying altitudes, there is a need of cali brating the databases to match with the new site LiDAR histograms. Therefore, the aim of this study is to the calibrate the LiDAR histogram databases by a non-linear mathematical model using the mean values of the LiDAR histograms. The accuracy of the calibrated LiDAR data is verified by predicting the forest stand characteristics using sparse Bayesian regression. The results obtained show that it is possible to calibrated histogram databases and the calibrated LiDAR histograms can be used in new inventory areas for the forest stand parameters estimation. It is observed that when the small number of calibration set from the new area (approximately 50 plots) is combined with the calibrated plots from the database, the estimation accuracy is almost equal to that when using the whole new area plots. This process is cost effective since instead of scanning the whole new inventory area, only ran- domly selected plots (approximately 50) can be scanned and be complemented with calibrated database plots for prediction of the forest stand characteristics. In some forests the geographical location does not support the aeroplanes to scan the forests, hence using calibrated databases can help to predict the forest characteristics of such areas.
A decision support system for enhancing crop productivity of smallholder farmers in semi-arid agricultureA decision support system for enhancing crop productivity of smallholder farmers in semi-arid agriculture
(2013) Churi, A. J.; Mlozi, M. R. S; Tumbo, S. D.; Casmir, R.; Mahoo, M. R. S
This study aimed at investigative decision support systems for assisting strategic and tactical decision making of smallholder farmers to reduce climate risks and increase crop productivity of semi-arid areas. Specifically, the study assessed farm-level decisions used by the farmers for reducing climate risks; examined information communication and knowledge sharing strategies for enhancing decision making and designed a system for assisting the farmers in selecting appropriate options for improving crop productivity. Development of DSS was governed by design science where prototyping approach was used to allow complete participation of end-users. The proposed architecture allows difference agricultural actors participate in communicating agricultural information and sharing of knowledge with smallholder farmers. The DSS was implemented and assessed by farmers as a useful tool for accessing information and advisories in agricultural systems. More research is recommended to enable simple and affordable mobile phones be used by farmers to access wealth of agricultural knowledge and policies from research centres and government resources.
Effect of crude root extract from Synadenium glaucescens on selected bacterial infections in albino mice (Mus musculus)
(2014) R. A. Max; C. Mwageni; G. G. Bakari
Modeling of an algorithm for design and analysis of water supply systems : a case of Ministry of Water, Tanzania
(University of Dar es Salaam, 2015) Nicodemus, Neema
Water supply system is a network of engineered hydraulic components which provide water supply to individuals and organizations. It has been noted that some areas experience shortage of water because of inadequate pressure and flows, illegal connections and leakages. This research focused to address the problem of pressure and flow variations at design stage. This is because the efficacy of a water supply system depends much on its design aspects. This was done through examination of key design aspects and generation of an algorithm for analysis and calibration of designs for water supply systems. The algorithm was developed to provide improvements and modifications until the intended standard is achieved. Interview and documentation analysis were the techniques applied for data collection. Analysis of data collected provided the foundation for model and algorithm design. Major principles considered were Continuity equation, Hazen William's equations and gravity-flow theory. The generalized model and the algorithm were implemented into software in order to make findings accessible while hiding unnecessary complexity to the user. Running time efficiency of the algorithm was found to be linear. Both the algorithm and its model proved to be correct through several tests done. Theories, principles and assumptions applied hold to be true for branched (tree or dead end) distribution systems. The prototype system provides a localized tool for design and analysis of water supply systems under local settings.
Computational modelling and entropy generation analysis of nanofluids in a channel
(Nelson Mandela African Institution of Science and Technology, 2016) Mkwizu, Michael H.
Nanofluid is a fluid containing nanometre- sized particles, called nanoparticles. These fluids are engineered colloidal suspension nanoparticles in a based fluid. The commonly used fluids are water, ethylene, oil and lubricant. Entropy is an extensive thermodynamic property that is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. That is it destroys the available energy in any flow process and thermal system. This study consists of six chapters. Chapter one is an introduction, in this chapter useful terms have been defined, objectives of the study, statement of the problem, significance of the study ware stated. The method used for analysis in all chapters is a semi discretization finite difference method together with Runge-Kutta Fehlberg integration scheme. The nanoparticles used was Copper (Cu) and Alumina (AI2O3). In chapter two, the analysis of the entropy generation in a variable viscosity channel flow of nanofluids with convective cooling was numerically investigated. The results revelled that Entropy generation rate generally increases with time /, Eckert number Ec, viscosity variation parameter /?, pressure gradient A, thermophoresis parameter Nt. Increase in Biot Bi increase entropy generation at the walls but decreases entropy generation within the channel. The paper was prepared and published in Comptes Rendus Mecanique. In chapter three, the combined effect of buoyancy force and convective cooling on the unsteady flow, heat transfer and entropy generation rate in water based nanofluids was investigated. A^Oj-water nanofluid observed to produces higher entropy than Cu-water nanofluid. Fluid friction irreversibility dominants the channel centreline region while the effects of heat transfer irreversibility near the walls increases with Grashof number Gr, Ec, A, but decreases with nanoparticles volume fraction
Analyzing usage of crowdsourcing platform Ushaurikilimo' by pastoral and agro-pastoral communities in Tanzania
(International Journal of Instructional Technology and Distance Learning, 2016-12) Fue, Kadeghe; Geoffrey, Anna; Mlozi, M.R.S.; Tumbo, Siza, D.; Haug, Ruth; Sanga, Camilius, A.
Earlier studies report that agricultural extension service for livestock keepers in Tanzania is not effectively offered. ‘Ushaurikilimo’ which is a crowdsourcing platform consisting of a Web and Mobile based agro-advisory system. It is a system which complements the traditional agricultural extension provided to pastoralists and agro-pastoralists. Mobile crowdsourcing for agricultural extension service is an emerging approach to address some of the problems experiencing in traditional agricultural extension service. This study explored the information seeking pattern of livestock keepers who are using ‘Ushaurikilimo’. In total 1739 questions are in ‘Ushaurikilimo’. Out of 1739 questions and answers, the study concentrated on 1312 questions since 427 questions related to forestry. Out of 1312 questions submitted to ‘Ushaurikilimo’ via livestock keepers’ mobile phones, 605 (47%) questions relate to livestock and 53% relate to crops. Most livestock keepers asked questions with keywords related to chicken, pigs and milk from ‘Ushaurikilimo’ knowledge base. Further data mining analysis showed that the following keywords are the most queried information by livestock keepers: poultry management, poultry equipment and accessories, hatching equipment, feed equipment, feed storage, feed manufacturing machinery, product handling/transport equipment, quality testing equipment and energy saving equipment, milk processing, housing and environment, building materials and equipment, feeds and feeding, food preservation, feed additives and dairy products. In this study, the pattern of information seeking behavior of livestock keepers matched the pattern which has been reported earlier by other researchers who explored the information seeking behavior of livestock keepers who are using other sources of information such as newspapers, television, radio, farmers’ friends and extension agents. One peculiar result from this study is that the average response time after the question had been assigned to an expert to answer was 32.49 hours. Thus, the crowdsourcing platform, web and mobile based agro-advisory system proved to be effective compared to conventional agricultural extension methods. This calls for a need to scale up ‘Ushaurikilimo’ to complement the traditional agricultural extension service in Tanzania.
Role of ICTS in accessing and disseminating information for improved urban livestock keeping in Tanzania. A review of related literature.
(DigitalCommons@UniversityofNebraska-Lincoln, 2017) Angello, Consolata
This review summarizes relevant research on the relevance of urban agriculture and how best various Information and Communication Technologies (ICTs) can be used in accessing and disseminating livestock husbandry information, in order to improve livestock husbandry practices in urban areas. Specifically, it reviews studies that have been conducted in relation to urban agricultural practices, the challenges of keeping livestock in urban areas and the solutions to overcome the challenges of urban livestock keeping. The review also discusses the extent of ICT integration in agriculture from a global perspective and specifically in Africa and Tanzania. The review focuses on the information needs of urban livestock keepers and the challenges encountered in using various ICTs in accessing livestock husbandry information. This review reveals gaps in the literature and recommends on possible ways forward that relevant stakeholders may take to address these gaps.
A systematic review on mobile learning in higher education: The African perspective
(TOJET, 2017-01) Kaliisa, Rogers; Picard, Michelle
The spread and popularity of mobile devices has led to their increased application in higher education. While studies have reviewed mobile learning initiatives in different contexts, none has explored this subject in Africa. This systematic review collates and compares studies published between 2010 and 2016 on mobile learning in higher education in the African context to explore the application, impact and challenges of mobile technologysupported learning. Findings show that mobile learning within higher education institutions in Africa increased student and lecturer collaboration and, provide dinstant communication, increased student participation and engagement, facilitating authentic learning and reflective practice, as well as fostering learning communities. A change in the lecturers’ approaches to teaching also occurred. The findings also indicate significant challenges in integrating mobile learning in higher education institutions within Africa: poor technological infrastructure, lack of access to modern mobile devices, lack of mobile learning pedagogical skills among lecturers, poor attitudes among students and lecturers, and incompatibility of mobile devices with the university online management systems. Policies to guide the implementation of mobile learning were also lacking. Large-scale studies assessing the effectiveness of mobile learning within African higher education institutions are lacking and existing studies lacked a theoretical framework. The review highlights enabling conditions for successful integration of mobile learning in African institutions addressing access, training, curriculum design, support and technical requirements. The absence of studies reporting on existing mobile learning projects reflects the limited penetration of this technology and associated pedagogies and a need to strengthen research in this emerging field
ECAWsoft: A web based climate and weather data visualization for big data analysis
(Global Journal of Computer Science and Technology: H Information & Technology, 2017-03) Tumbo, Siza D.; Kadeghe, Fue G.; Sanga, Camilius A.
In Tanzania, data for climate and weather are normally analyzed by Meteorological Agency and then are published through TV, website and radio. Different stakeholders normally obtain the weather and climate data / information in a generalized way. This calls for a need of a system which allows data to be shared openly to different stakeholders so that they can analyze those data as per their specific needs. Design/methodology/approach: The paper presents the overview of the developed system, ECAWsoft. Also, it gives some few interfaces showing different outputs from the system. Findings: The goal of this paper has been attained by developing a working data visualization tool for climate and weather called ECAWsoft. The system is current operational and is providing open data for different stakeholders.
Human sensor web crowd sourcing security incidents management in Tanzania context
(Scientific Research Publishing, 2018) Mshangi, M.; Nfuka, E. N.; Sanga, C.
Security incidents affecting information systems in cyberspace keep on rising. Researchers have raised interest in finding out how to manage security incidents. Various solutions proposed do not effectively address the problematic situation of security incidents. The study proposes a human sensor web Crowd sourcing platform for reporting, searching, querying, analyzing, visualizing and responding to security incidents as they arise in real time. Human sensor web Crowd sourcing security incidents is an innovative approach for addressing security incidents affecting information systems in cyberspace. It employs outsourcing collaborative efforts initiatives outside the boundaries of the given organization in solving a problematic situation such as how to improve the security of information systems. It was managed by soft systems methodology. Moreover, security maturity level assessment was carried out to determine security requirements for managing security incidents using ISO/IEC 21827: Systems security engineering capability maturity model with a rating scale of 0 - 5. It employed descriptive statistics and non-parametric statistical method to determine the significance of each variable based on a research problem. It used Chi-Square Goodness of Fit Test ( X 2) to determine the statistical significance of result findings. The findings revealed that security controls and security measures are implemented in ad-hoc. For managing security incidents, organizations should use human sensor web Crowd sourcing platform. The study contributes to knowledge base management learning integration: practical implementation of Crowd sourcing in information systems security.
Real-Time 3-D Measurement of Cotton Boll Positions using Machine Vision Under Field Conditions
(The Cotton Foundation, 2018-01-05) Kadeghe, F.; Glen, R.; Wesley, P.
Cotton harvesting is performed by expensive combine harvesters that hinder small to medium-size cotton farmers Advances in robotics provide an opportunity to harvest cotton using small and robust autonomous rovers that can be deployed in the field as an “army” of harvesters. This paradigm shift in cotton harvesting requires high accuracy 3D measurement of the cotton boll position under field conditions. This in-field high throughput phenotyping of cotton boll position includes real-time image acquisition, depth processing, color segmentation, features extraction and determination of cotton boll position. In this study, a 3D camera system was mounted on a research rover at 82° below the horizontal and took 720p images at the rate of 15 frames per second while the rover was moving over 2-rows of potted defoliated cotton plants. The software development kit provided by the camera manufacturer was installed and used to process and provide a disparity map of cotton bolls. The system was installed with the Robot Operating System (ROS) to provide live image frames to client computers wirelessly and in real time. Cotton boll distances from the ground were determined using a 4-step machine vision algorithm (depth processing, color segmentation, feature extraction and frame matching for position determination). The 3D camera used provided distance of the boll from the left lens and algorithms were developed to provide vertical distance from the ground and horizontal distance from the rover. Comparing the cotton boll distance above the ground with manual measurements, the system achieved an average R2 value of 99% with 9 mm RMSE when stationary and 95% with 34 mm RMSE when moving at approximately 0.64 km/h. This level of accuracy is favourable for proceeding to the next step of simultaneous localization and mapping of cotton bolls and robotic harvesting.
e-Agriculture promising practice UshuariKilimo information system web and mobile phones for extension services in Tanzania
(FAO, 2018-05) Sanga, C.
‘UshauriKilimo’ is a Swahili word from ‘Ushauri’ and ‘Kilimo’ which means ‘advisory’ and ‘agriculture’ respectively. ‘UshauriKilimo’ is a system for agricultural advisory services. It is an agro advisory and extension service system that allows any actor in the agricultural sector to ask for advisory services to an agriculture extension officer using either the web or a mobile phone. The mobile and web based advisory information system for farmers was developed in collaboration with the Kilosa Community Radio, using participatory action research to ensure the improved extension services would correspond to the needs of the end users. The Web based Farmers Advisory Information System (MFAIS) and Mobile based Farmers Advisory Information Systems (WFAIS) were released for public use in January 2015, after an awareness raising campaign conducted in Kilosa District of Tanzania.
Socio-economic and field performance evaluation of different rice varieties under system of rice intensification in Morogoro Tanzania
(2018-08-10) Kangile, R. J; Ng’elenge, H. S; Busindeli, I. M
Worldwide, many Studies on the System of Rice Intensification (SRI) indicate that, the practice has promising results on increased rice productivity especially with high-yielding varieties. Therefore, it was necessary to validate the system at smallholder farmers’ level under Tanzanian condition. The study sought to evaluate the performance of selected rice improved varieties under SRI in different fields and locations in Morogoro region through an action research. Four rice varieties were planted in Completely Randomized Block Design (CRBD) experimental fields at the spacing of 25cm x 25cm transplanted at 10 days after emergence. Experimental fields were set in three locations. The evaluation was followed by socio-economic participatory variety selection (pairwise and matrix scoring methods) which involved 36 farmers from all the three locations. It included both consumption (aroma, panicle size, grain weight, milling quality, cookability and palatability) and production traits (Yield, threshability, lodging, maturity, plant height, shuttering, disease tolerance and drought tolerance) of rice varieties. A statistical Package for Social Science computer software (SPSS) and Genestat were used in data analysis. Field results based on production trait (yield) indicated TXD 88 to have the highest yield (9.13t/ha). Other yield levels were 8.7t/ha, 8.4t/ha and 6.2t/ha for TXD 307, TXD 306 and Supa respectively. Yield was significantly influenced by number of productive tillers (P<0.05). Participatory Variety Selection results with consideration of both production and consumption traits highlighted TXD 306 to be suitable for farmers. We recommend the use of improved rice varieties under SRI. The dissemination efforts need to foster on the extensive promotion of TXD 306 since it serves the dual purposes by having competitive production and consumption traits under SRI production system. Breeding programs need to also embark on improving TXD 88 removing its chalkiness.

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