Articles
Page 4 of 1144, showing 50 records out of 57174 total, starting on record 151, ending on 200
November 2018
African Journal of Agricultural Research
Agromorphological traits variation in local sorghum varieties from the North region of Burkina Faso and identification of some interest traits
The aim of the study was to assess the agromorphological diversity of 150 local sorghum varieties collected from 13 villages of the North region of Burkina Faso, in order to understand the dynamics of diversity and to identify interest gene pools for varietal improvement. The varieties were characterized from 2017 to 2018 at INERA Saria Research Station in the North-Sudanian zone (700-900 mm of rainfall). The...
November 2018
African Journal of Agricultural Research
Effectiveness of combining certain biotechnical methods with thymol treatment against Varroa destructor infestation
In this study, the effectiveness of combining various biotechnical methods with thymol was investigated against the mite, Varroa destructor during late summer. Experimental colonies were randomly selected and six study groups were formed with nine colonies in each group. Experimental colonies were created as follows: colonies of renewed queen bees (RQ); colonies in which the queen is trapped on one comb, but worker bees...
November 2018
African Journal of Microbiology Research
Epidemiology of bloodstream infection in Saudi Arabia
Bloodstream infections are a challenge to clinicians due to high rates of morbidity and mortality. Moreover, rational antimicrobial therapy, if promptly started, can improve the prognosis of sepsis. The gold-standard blood culture has some limitations and it takes time to complete (about 2-5 days). This leaves the clinicians to start immediately broad-range antimicrobial therapy until microbiology culture’s...
November 2018
African Journal of Microbiology Research
Diagnosis of Trichomonas vaginalis using real-time polymerase chain reaction (PCR) among women at Institut Pasteur of Côte d’Ivoire
Trichomoniasis is a sexually transmitted disease caused by a mobile flagellate pathogenic protist protozoan of the urogenital tract, Trichomonas vaginalis. No data is available in Côte d’Ivoire about its diagnosis by molecular methods. This study aims to identify T. vaginalis by polymerase chain reaction (PCR) among women at Institut Pasteur of Côte d’Ivoire. Vaginal swabs were obtained from each...
November 2018
African Journal of Agricultural Research
Effects of tillage practices, cropping systems and organic inputs on soil nutrient content in
Machakos County
Low use efficiencies of inorganic fertilizers coupled with their rising costs has diverted attention of farmers towards organic sources. A study was conducted in Yatta sub-county between October 2012 to February 2013 short rains and April-August 2013 long rainy seasons to evaluate how tillage, cropping and organic inputs influenced soil nutrient status. A randomized complete block design with a split-split plot...
November 2018
African Journal of Agricultural Research
Chemical and biological managment of white mold (Sclerotinia sclerotiorum) disease in irrigated common beans (Phaseolus vulgaris) cultivation
The aim of this work was to study the effect of fungicides and biological agents on the control of white mold (Sclerotinia sclerotiorum) in common beans (cv. Pérola). Nine treatments were applied in six blocks (54 experimental units) using a randomized block design (RBD). The treatments were: T1 (control); T2, Bacillus subtilis strain QST 713 (4 L / ha); T3, B. subtilis strain QST 713 (4L / ha); T4, B. subtilis...
November 2018
African Journal of Agricultural Research
Impact of irrigation adoption on rural farmer’s welfare in Eastern Cape Province of South Africa: A propensity score matching approach
The aim of the present study was to assess the impact of irrigation adoption on farmer’s welfare measured by consumption expenditure and food consumption pattern. The paper was based on cross sectional farm household data collected in 2015 from a sample of 200 households in rural Eastern Cape of South Africa. The study used a stratified random sampling method to select farming households from three district...
November 2018
African Journal of Agricultural Research
Correlation and path coefficient analysis in mid-altitude sesame (Sesamum indicum L.) germplasm
collection of Ethiopia
The current investigation was aimed to study the genetic association of seed yield and its components in 81 mid-altitude sesame accessions based on morphological traits. The genotypes were evaluated in 9 × 9 simple lattice design at Melkassa Agricultural Research Center, Ethiopia, during the 2014 cropping season. The study mainly focused on determining the nature and extent of phenotypic and genotypic correlation...
November 2018
African Journal of Agricultural Research
OsHKT1;3 gene sequence polymorphisms and expression profile in rice (Oryza sativa L.)
Rice is sensitive to salt stress, but its sensitivity varies among genotypes, indicating natural variation in regulatory mechanisms and genetic makeup. High-affinity potassium transporters (HKTs) that transport cations across membranes play important roles in stress responses of plants. In this study, the gene sequence polymorphisms and expression level of OsHKT1;3 which is a member of the rice HKT gene family was...
November 2018
African Journal of Agricultural Research
Genetic diversity of rhizobia and plant growth promoting rhizobacteria of soil under the influence of Piliostigma reticulatum (DC.) Hochst and their impact on shrub growth
Piliostigma reticulatum shrub is a native legume found in fallow areas in dry and semi-dry savanna soil and is used in intercropping systems. The aim was to understand the functioning of the rhizosphere, particularly the involvement of symbiotic and free living-N fixing bacteria. Soil extracts collected from P. reticulatum roots were sampled in two contrasting areas and endophytic bacterial communities were isolated...
November 2018
African Journal of Business Management
Is there a weather effect? Evidence from a panel of emerging countries’ stock markets
A long history of psychological studies has postulated that good (bad) weather induces a positive (negative) mood. Other studies have concluded that mood can influence humankind decision-making process under risk and uncertainty. Several behavioural finance studies have raised the question of whether sunshine, temperature or other weather variables exert an impact on stock prices by affecting the behaviour of market...
November 2018
African Journal of Business Management
Entrepreneurship in the rural context: Practical reflection on success and innovation
Given the important role that entrepreneurship plays in the economy, it is desirable that entrepreneurs succeed. However, there is a noticeable trend of rural entrepreneurs migrating to urban areas. This study aims to ascertain the factors that contribute to entrepreneurial success. Using quantitative methods fifty respondents participated and data was collected using questionnaires. The collected data was analysed and...
November 2018
African Journal of Microbiology Research
Diversity of culturable endophytic fungi of Hevea guianensis: A latex producer native tree from the Brazilian Amazon
Hevea guianensis is a species of rubber tree native to the Amazon rainforest. This tree is highly exploited for latex extraction but is not cultivated. Therefore, few studies have investigated its microbiota. The aim of this study was to analyze the diversity of endophytic fungi in the leaves, stems and roots of H. guianensis trees from the Brazilian Amazon. A total of 92 fungi were isolated from different tissues of...
November 2018
African Journal of Microbiology Research
Impact of faecal bacteria contamination on drinking water supply in Aghien Lagoon, Abidjan, Ivory Coast
In developing countries, urban surface waters are particularly affected by faecal pollution from domestic wastewaters due to the lack of sanitation and wastewater treatment plants. The presence of pathogenic microorganisms limits the uses of these waters for recreation and economic activities. In Ivory Coast, due to the important gap between water demand and water supply in urban areas, use of surface waters for the...
November 2018
African Journal of Biotechnology
Evaluation of genetic diversity of pearl millet (Pennisetum glaucum L.) landraces from West Africa using microsatellite markers
Pearl millet (Pennisetum glaucum L.) is an important staple food crop, especially in arid and semi-arid regions of West Africa. However, the genetic diversity of pearl millet in these regions is poorly understood, and yet it is useful in identification of landmarks for in situ germplasm conservation and breeding programs, particularly in establishment of heterotic groups. Therefore, the aim of this study was to assess...
November 2018
Journal of Medicinal Plants Research
A review on the botanical aspects, phytochemical contents and pharmacological activities of
Warburgia ugandensis
Warburgia ugandensis Sprague (Family Canellacea) commonly known as Ugandan greenheart or pepper bark tree, is a highly valued medicinal plant in traditional medicine with a broad spectrum of antimicrobial activity whose parts especially the leaves and stem bark have for long been used in the treatment and management of many diseases and health conditions such as stomachache, cough, toothache, fever, malaria, oral...
November 2018
Journal of Medicinal Plants Research
Antibacterial and antioxidant potential of Albizia anthelmintica as a medicinal plant on pathogenic veterinary isolates
Albizia anthelmintica is a medicinal plant belonging to the Fabaceae family. It is widely used by smallholder farmers and pastoralists to treat internal parasites in their livestock. This study aimed to determine the antibacterial and antioxidant potential of A. anthelmintica on pathogenic veterinary isolates. 100% hexane (He100), 100% chloroform (Ch100), 100% ethanol (E100), and 70% ethanol (E70) extracts of the roots...
November 2018
Journal of Medicinal Plants Research
In vitro antibacterial and antidiarraheic activity of root bark extract of Anogeissus leiocarpa (Combretaceae) during an experimental bacterial diarrhea induced by Escherichia coli extended-spectrum β-lactamases (ESBL) in albino Wistar rats
The present study was conducted to investigate in vitro and in vivo antibacterial activity of the root bark extracts of Anogeissus leiocarpa (DC) Guill. & Perr, in Escherichia coli extended-spectrum β-lactamases (ESBL)-induced diarrhea in rat. The antibacterial activity was performed in vitro by determining the inhibition zone using standard agar diffusion method as well as in vivo on E. coli infected Wistar...
November 2018
Journal of Medicinal Plants Research
Antioxidant and antiproliferative activities of ethanolic extracts of Elateriospermum tapos Blume (Euphorbiaceae)
Phytochemicals possessing free radical scavenging and antiproliferative activities play an important role in cancer chemoprevention. In this study, the ethanolic extracts prepared from fresh and dried leaves, bark, and seed skin of Pra (Elateriospermum tapos Blume.) were tested for their antioxidant activity using a ferric reducing ability of plasma (FRAP) assay. The antiproliferative activities against four human...
November 2018
Educational Research and Reviews
Use of technology in constructivist approach
Over the course of history, the structures of societies have changed at certain periods depending on technological and scientific developments. In today’s societies, such mental processes as information processing and production have become prominent and the educational systems are revised according to the constructivist approach, which focuses on mind and is based on developing cognitive skills. Technological...
November 2018
Educational Research and Reviews
The effect of cooperative learning on the academic achievement and attitude of students in
Mathematics class
In the axis of basic skills and values, students' enjoyment of mathematics lesson and the realization of learning by taking a certain distance depend on the appreciation of the effort of the individual. Cooperative learning provides this requirement with a great deal of reward and success. Success increases individual's self-confidence and making him/her more powerful and positive in mathematical learning. By...
November 2018
African Journal of Agricultural Research
Sweetpotato seed exchange systems and knowledge on sweetpotato viral diseases among local farmers in Acholi Sub Region-Northern Uganda
Viral infections greatly limit sweetpotato yields. Good farming practices are critical for effective disease management. 383 Ugandan farmers were surveyed to document symptom incidence, crop-management practices, and buyer preferences. Results showed that 89.27% farmers grow sweet potatoes yearly and 62.76% of these farmers were female. A total of 56.83% farmers obtained vine seeds from their previous gardens, 25.85%...
November 2018
African Journal of Agricultural Research
Water excess in different phenological stages of canola cultivars
The objective of this study was to determine the stage of development with greater sensitivity to water excess and the period of time required to compromise the emergence and grain yield components of canola. The experiments were performed in a greenhouse at the Federal University of Santa Maria and at the Farroupilha Federal Institute, Campus of São Vicente do Sul, RS during the 2015 agricultural year. The...
November 2018
African Journal of Agricultural Research
Effects of biochar on carbon pool, N mineralization, microbial biomass and microbial respiration
from mollisol
Biochar incorporation as a soil amendment has been shown to enhance soil quality. However, there has been conflicting reports on its short term effects on C and N mineralization and microbial biomass. An incubation experiment was conducted to determine the effects of three different levels (0.5, 1 and 2%) of biochar on carbon mineralization, soil organic carbon, nitrogen mineralization, microbial biomass and total...
November 2018
African Journal of Pharmacy and Pharmacology
Effects of combination therapy of Bridelia ferruginea stem bark and diminazene aceturate on testicular and haematological changes in Trypanosoma brucei infected male rats
The study was done to assess the ameliorative effects of co-administration of methanol extract of Bridelia ferruginea stem bark and diminazene aceturate on trypanosomosis induced testicular and haematological changes in infected male rat. Twenty five male rats were used in the study and assigned into five groups (n=5). Trypanosoma brucei was inoculated into Groups 1, 2, 3 and 4 rats except Group 5. Diminazene aceturate...
November 2018
African Journal of Pharmacy and Pharmacology
The protective effects of Vitamin E and glibenclamide on spermatogenic and haematological changes in alloxan-induced diabetic male rats
This study was designed to evaluate the preventive potentials of vitamin E and glibenclamide on spermatogenic and haematological damages in alloxan-induced diabetic male rats. Thirty mature male albino rats randomly assigned into 5 groups (n=6) were used for the study. Diabetes was experimentally induced in groups 1 to 4 while group 5 rats served as the negative control. Rats in groups 1, 2 and 3 were treated with...
November 2018
African Journal of Agricultural Research
Economics and variety adoption of tuberose: A farm level survey in Bangladesh
qqqQ1`Recently, Bangladesh Government has incorporated flowers in its export policy. Flowers can be a source of earning huge foreign currency if established as a traditional export item. Using cross-sectional data obtained from a survey conducted during 2016/2017, gross margin analysis was used to calculate cost and returns for double (HYV) and single varieties tuberose farmers and multiple regressions for conducting...
November 2018
African Journal of Agricultural Research
Effects of cutting length, time and growing media on the sprouting of dormant semi-hardwood cuttings of pomegranate cv. Wonderful
Scientific confirmation of the traditionally known health benefits of pomegranates caused a tremendous increase in the consumption and production of this highly valuable fruit tree. Reproduction of pomegranate plants with seeds shows great variability in tree vigour and fruit quality. Cuttings is one of the most successful and preferred methods for the propagation of pomegranates. It is easy, quick, economic and most...
November 2018
African Journal of Agricultural Research
Preliminary survey of foliar maize diseases in North Western Ethiopia
In Ethiopia, maize is the staple food and one of the main sources of calories particularly in the major maize producing-regions of the country. Survey was conducted to determine the prevalence, incidence and severity of foliar maize diseases in North Gondar Zone. A total of 150 farmers’ fields were randomly sampled from five districts (Chilga, Gondar zuria, Takussa, Metema and Dembia) in North Gondar Zone of...
November 2018
African Journal of Agricultural Research
Organic matter and maize straw influence on soil moisture in an Oxisol under different tillages
Cultivation system is one of the main parameters inherent to soil water dynamics. Studies indicate that in soil conservation systems, such as no-tillage and crop-livestock integration, soil quality is maintained and even improved due to higher input of organic matter and straw kept on the soil surface. Thereby, the aim of this study was to analyze the influence of the spatial variation of maize straw and organic matter...
November 2018
African Journal of Agricultural Research
Influence of cytoplasmic genetic male sterility in the grain yield of maize hybrids
One of the main barriers to the production of hybrid maize seeds consists of needing detasseling of female parent in order to avoid contamination with unwanted pollen. This activity is a laborious practice, which makes the production more expensive and promotes productive losses. Thus, the use of cytoplasmic genetic male sterility can facilitate the hybridization process, and consequently, the production of hybrid...
November 2018
African Journal of Microbiology Research
Antibiotics resistance patterns of Panton-Valentine leukocidin-positive methicillin-resistant staphylococci isolated from clinical samples in Abidjan, Côte d’Ivoire
Methicillin-resistant staphylococci have emerged as significant pathogens which cause various infections and its multidrug resistance is a major concern. This study aimed to determine the prevalence of Panton-Valentine leukocidin (PVL) gene and antibiotic resistance patterns of staphylococci isolated from clinical infections in Abidjan. A total of 35 staphylococci strains was obtained from 35 clinical samples (pus,...
November 2018
African Journal of Microbiology Research
Phenotypic and molecular characterization of inducible clindamycin resistance among Staphylococcal strains isolated from cancer patients with febrile neutropenia
This work aimed at the phenotypic and molecular characterization of inducible clindamycin resistance among strains of Staphylococcus aureus isolated from cancer patients with febrile neutropenia. Out of 231clinical specimens Staphylococci were isolated from 179 (77.48%) cases. Isolates were identified by conventional microbiological methods. Antimicrobial sensitivity to all isolates was done using disc diffusion...
November 2018
African Journal of Biotechnology
Comparison of four DNA extraction methods in Heliconia (Heliconia L.)
Molecular analysis in plants requires the use of high quality DNA. Currently, there are a myriad of DNA extraction protocols, which still seems that their applicability across different species is not straightforward. The aim of the present study was to evaluate four different cetyl trimethylammonium bromide (CTAB)-based DNA extraction protocols for Heliconia species from lyophilized fully mature leaves. A split-plot...
November 2018
African Journal of Agricultural Research
Groundwater quality monitoring for agriculture irrigated in Catolé Do Rocha, Paraíba State, Brazil
The electrical conductivity and of cations (Ca2+, Mg2+, Na+ and K+) and anions (Cl-, CO32-, HCO3- and SO42) contents of the water an Amazon well, from State University of Paraíba, Catolé do Rocha city, Paraíba State, Brazil, located in the semi-arid region of the Brazilian High Sertão were evaluated monthly from January to December of year 2017. Despite the increase in electrical conductivity...
November 2018
African Journal of Agricultural Research
Performance and farmers selection criteria Evaluation of Improved Bread Wheat Varieties
Bread wheat is one of the most important cereal crops of the world and a staple food for about one third of the world’s population and is a major cereal crop in Ethiopia. One of the major challenges in improving food security is to develop varieties that are adapted to specific environment and farmers’ needs. Field trials were conducted at two locations, Hitosa (Sero-Anketo kebele) and Limu Bilbilo...
November 2018
African Journal of Agricultural Research
Competitiveness of Brazilian soybean exports
The objective of this article was to analyze the indicators of competitiveness in the foreign trade of Brazilian soybean from the year 2004 to 2014. The problem under study deals with the competitiveness of this commodity in the international market. The applied methodology initially used the descriptive statistics, seeking to demonstrate through tables and graphs the evolution of the soybean exports in the...
November 2018
African Journal of Agricultural Research
Factors affecting adoption of sustainable soil management practices among vegetable producers in Dhading, Nepal
A research was conducted using primary data for the year 2012 obtained from randomly selected 120 vegetable farmers using pre-tested semi-structured interview schedule. Nalang and Salang VDCs of Dhading district in Nepal were purposively selected for the study. Different variables were fed to probit regression model to identify and quantify the major factors affecting the adoption of sustainable soil management...
November 2018
African Journal of Agricultural Research
Seed-priming of sorghum with antifungal extracts from Balanites aegyptiaca and Eclipta alba in different agro-ecological zones of Burkina Faso
Seed-priming of sorghum with an aqueous extract from the herbal plant, Eclipta alba has previously been found to increase crop yield of sorghum in Burkina Faso dependent on field location. In the present study, a 2.5% w/v antifungal extract from the desert tree, Balanites aegyptiaca, was similarly shown to increase the yield of sorghum by seed treatment. The effect was compared to the effect of E. alba extract on...
November 2018
African Journal of Agricultural Research
Estimating of rainfall soil losses in Oltu Anzav Watershed
Erosion is a key factor for sustainability of land management. This study aimed to determine the spatial distribution of estimated total soil loss amount and erosion severity in the Oltu Anzav Watershed located in the East of Anatolia, Turkey. This study was conducted by using Geographical Information Systems (GIS) based on Revised Universal Soil Loss Equation (RUSLE) method. Topsoil samples (0-30 cm) were collected in...
November 2018
African Journal of Agricultural Research
Farmers’ perceptions, practices and proposals for improving agricultural productivity in South Sudan
This study was carried out to establish farmers’ perceptions regarding low agricultural productivity and to document their ideas for improving the performance of agriculture sector in South Sudan. The results reveal that the major challenges related to low agricultural productivity as perceived by farmers include poor leveling of fields, poor irrigation management, low water availability, loss of land due to...
October 2018
Journal of Horticulture and Forestry
Effect of manure and nitrogen rates on growth and yield of garlic (Allium sativum L.) at Haramaya,
Eastern Ethiopia
An experiment was conducted at Haramaya University, Horticulture Research Field, Haramaya during the period from 13 August, 2010 to 17 January, 2011 to investigate the effect of manure and different levels of nitrogen on yield and yield attributed traits. A local garlic cultivar was used for the study. The treatments consisted of four levels of nitrogen (0, 50,100 and 150 kg/ha) and three levels of goat manure (0, 10...
October 2018
Journal of Development and Agricultural Economics
Determinants of adoption of dorper black head Somali crossbred sheep in pastoral areas: the case of Yabello District, Southern Oromia, Ethiopia
This study aims to investigate determinants of adoption of the Dorper Black Head Somali (DBHS) Crossbred Sheep by the pastoralists in Yabello District, Ethiopia. Data from 123 sample respondents (pastoralists) were collected and analyzed using SPSS version 16.0. A binary logistic regression model was used to estimate the effects of hypothesized independent variables on the dependent variable (adoption of DBHS crossbred...
October 2018
Journal of Plant Breeding and Crop Science
Assessment of salt tolerance and variability within some rice germplasm using microsatelittes
Soil salinity is a major abiotic stress that affects rice production. It can reduce yield drastically and result in total crop failure. The objectives of this study are to determine the genetic diversity within thirty-six rice accessions and to identify genotypes that are tolerant to salinity. Thirty-six rice accessions including three check varieties were sown in experimental pots and their leaves harvested for DNA...
October 2018
African Journal of Food Science
The effect of mechanical kneading and absit preparation on tef injera quality
The aim of this study was to investigate the effect of mechanical kneading and ‘absit’ preparation difference on the quality of tef injera, the staple food of Ethiopians. Standard methods were adopted to determine the starch fraction, total phenol, flavonoid, phytate and tannins of injera. Sensory injera quality was assessed using 9-point-hedonic scale. Change in kneading conditions (time/speed) did not...
October 2018
African Journal of Food Science
Weaning food fortification and improvement of fermented cereal and legume by metabolic activities of probiotics Lactobacillus plantarum
The provision of cheap, balanced and adequate nutritional composition for growing infants is a major challenge in Africa. Most weaning foods are usually cereal-based gruels fermented by lactic acid bacteria (LAB). The major nutrient they supply being carbohydrate, uncontrolled or inappropriate intake might cause growth retardation and malnutrition in growing children. The nutritional requirement of weaning infants could...
October 2018
African Journal of Food Science
Determinants of traders’ nutrition knowledge and intake of traditional African vegetables in Tanzania
Indigenous and traditional African vegetables are receiving increasing attention because of their potential to contribute to food and nutritional security as well as enhance livelihoods in sub-Saharan Africa. Traditional African vegetables are important sources of nutrients like iron and calcium and also vitamins A, B complex, C, and E. The consumption of vegetables in sub-Saharan Africa, however, falls way below the...
October 2018
African Journal of Food Science
Effect of pregelatinized corn and rice flour on specific volume of gluten-free traditional Algerian bread «KhobzEddar» using central composite design
In the present study, the effect of addition of pregelatinized corn and rice flour on specific volume of gluten-free traditional Algerian bread Khobz Eddar was studied. The gluten-free breads were made from corn and rice/field bean formula in ratio 2/1 (w/w) and pregelatinized corn and rice flour were made by adding water to flour on the basis of 5/1 (w/w) and heated until 65°C. Response Surface Methodology (RSM)...
October 2018
African Journal of Food Science
Fate of aflatoxins during traditional melon cake and sauce processing
Melon cake is a non-fermented, traditionally processed food product obtained from melon seeds, and it is consumed as a snack or added to soup. Melon sauce is obtained during the final step of melon cake processing and it is used with melon cake during soup making. This study focused on evaluating the fate of aflatoxin during traditional melon seed processing into melon cake and sauce as a combined product. Shelled melon...
October 2018
Journal of Development and Agricultural Economics
Economic efficiency of smallholder farmers in barley production in Meket district, Ethiopia
This study analyzed the economic efficiency of smallholder farmers in barley production in the case of Meket district, Amhara National Regional State, Ethiopia. A cross sectional data collected from a sample of 123 barley producers during the 2015/2016 production season was used for the analysis. Two stages random sampling method was used to select sample respondents. The translog functional form was chosen to estimate...
Page 4 of 1144, showing 50 records out of 57174 total, starting on record 151, ending on 200
