Articles

 

Page 5 of 1122, showing 50 records out of 56058 total, starting on record 201, ending on 250

April 2018

International Journal of Genetics and Molecular Biology
Use of expressed sequence tags-derived simple sequence repeat (SSR) markers for population studies of released and elite sweet potato

Development of improved varieties of sweet potato to meet specific end users in the sub-Saharan African region has the potential of transforming the crop’s market, consumption and health benefits. Molecular biology techniques such as fingerprinting are key to crop improvement, and critical for numerous genetic studies. This study, carried out in Ghana, seeks to determine genetic relatedness among two populations...

Author(s): Marian Dorcas Quain, Kwadwo Adofo, David Appiah-Kubi, Ruth Naa Prempeh, John Asafu-Agyei, Belinda Akomeah and Harrison Dapaah

April 2018

African Journal of Pharmacy and Pharmacology
In-vitro membrane stabilizing, thrombolytic, antioxidant and antimicrobial activities of Bangladeshi origin Coccinia indica (Cucurbitaceae)

This study was made to investigate in-vitro membrane stabilizing, thrombolytic, antioxidant and antimicrobial activities of ethanolic leaf extract of Coccinia indica. Different extractives showed significant membrane stabilizing activity. The ethanol soluble fraction showed (45.36±0.45 % and 64.05±0.22 %) of Red blood cells haemolysis inhibition under heat and hypotonic solution induced conditions,...

Author(s): Razia Sultana, Kamrun Nahar and Sitesh Chandra Bachar  

April 2018

African Journal of Business Management
A study on the community online to offline (O2O) operation model in Nanjing

This study aims to study the online to offline (O2O) operation pattern of Chinese E-commerce and its features; analyze the current development and existing problems of Chinese O2O operation pattern; and explore the domestic O2O development layout of communities in Nanjing. Both qualitative and quantitative analyses are applied in this work. For the quantitative analysis, questionnaire was distributed to some consumers...

Author(s): Jing Wei

April 2018

African Journal of Business Management
Peer pressure and its influence on consumers in Taiwan

The social influence in the form of peer pressure is prevalent in many countries across the globe. Peer pressure is the influence of a group on behaviors of individual members of that group such that the individuals tend to follow what everybody does. In the field of business, understanding consumer’s interest is of paramount importance and therefore understanding peer pressure can be a useful tool to persuade...

Author(s): Shu Chun Chang and Trong An Nguyen

April 2018

African Journal of Microbiology Research
Good hygiene practices and microbiological contamination in commercial restaurants

Food services and commercial restaurants have gained more space in people’s lives. Thus, people are more concerned about food security and sanitary hygiene. The present study evaluated practices of manipulation and contamination of environments and the preparation of surfaces in commercial restaurants in Vitória-ES, Brazil. Data on good practices were collected through a checklist proposal based on the RDC...

Author(s): Rosiane Cosme Nascimento, Elizandra Maier Silva and Jackline Freitas Brilhante de São José  

April 2018

African Journal of Microbiology Research
blaKPC-2 and blaOXA-48 producing Klebsiella pneumoniae found in a Turkish hospital in the Balkans

Carbapenem-resistant Klebsiella pneumoniae carrying blaKPC-2, blaOxa48, and other metallo--lactamases (MBLs) are difficult to treat. This study was conducted to study the phenotypic and genotypic features of carbapenem resistance in isolates of K. pneumoniae isolated from a tertiary care hospital in the European region of Turkey. Isolates of K. pneumonia (n=100) resistant to at least one carbapenem (imipenem,...

Author(s): Sebnem Bukavaz, Metin Budak and Aygül Dogan Celik  

April 2018

African Journal of Agricultural Research
Genotype by environment interaction (GxE) as a measure of yield stability of Dutch potato varieties in Uganda

Twenty one (21) Dutch potato varieties were introduced in Uganda during 2015-2016 seasons for national yield performance and adaptability studies so that most stable varieties could be identified for production.  The effect of genotype (G), environment (E) and their interaction (G x E) on tuber yield was assessed to establish variety adaptation in different agro ecologies. Five sites were used in the study that...

Author(s): Arinaitwe Abel Byarugaba, Mateeka Benon, Deo Tibanyedera and Alex Barekye

April 2018

African Journal of Agricultural Research
Uncertainty, risk aversion, and management strategies – A case of cocoa farmers in Osun State Nigeria

Risk is a major issue that affects so many aspects of people’s livelihoods in the developing world. It is imminent in all management decisions of agricultural systems, as a result of fluctuations in price, yield and resource uncertainty. Hence, uncertainty, risk aversion and management strategies were investigated among the cocoa farmers in Osun State, Nigeria. Primary data employed in the study were obtained from...

Author(s): Agboola, Timothy Olusola, Balogun, Olubunmi Lawrence and Elugbaju, Dolapo Abigail  

April 2018

African Journal of Agricultural Research
Response of groundnut (Arachis hypogaea L.) to plant growth promoting Rhizobacteria in degraded soils

The effects of plant growth promoting Rhizobacteria (PGPR) on the growth, plant nutrient content and crop yield of groundnut (Arachis Hypogaea L.) cv. Golden were investigated under rainfed conditions in degraded lands within 2011 and 2014. The experiment was planned with a randomized complete block design having three replication. The two PGPR treatments alone or in combination with FYM were tested and compared with...

Author(s): Rahina Kausar, Muhammad Iqbal Choudhary, Muhammad Imran Akram, Muhammad Rashid, Obaid Ur Rehman, Ayesha Malik,Muhammad Azeem Ur Rahman Khalid, Muhammad Zubair and Sarosh Alvi  

April 2018

African Journal of Agricultural Research
The permanence in the plantation after harvest damages physical characteristics of Conilon coffee grains

The permanence of harvested fruits in the plantation can cause irreversible damage to Conilon coffee quality, possibly increasing the overall number of defects, causing losses to crop yield and changing the organoleptic properties of the product. The objective of this study was to quantify the changes caused by permanence time of the Conilon coffee in the plantation after harvest over the mass and classification of the...

Author(s): Abraão Carlos Verdin Filho, Paulo Sérgio Volpi, Tafarel Victor Colodetti, Wagner Nunes Rodrigues, Marcelo Antonio Tomaz, Lima Deleon Martins, Sebastião Vinícius Batista Brinate, Romário Gava Ferrão, Aymbiré Francisco Almeida da Fonseca, Maria Amélia Gava Ferrão, Marcone Comério and Saul de Andrade Júnior  

April 2018

African Journal of Agricultural Research
Single-line automated sorter using mechatronics and machine vision system for Philippine table eggs

An automated single-line table egg sorting machine that integrates machine vision and mechatronics principles was developed in this study. The machine was fabricated using low cost and locally available materials. The developed machine was composed of the feeding unit, computing unit and the sorting unit. The conveyor was powered by a 12V DC geared motor, and the sorting arm was actuated by a DC servo motor which...

Author(s): Erwin P. Quilloy, Delfin C. Suministrado and Pepito M. Bato

April 2018

African Journal of Agricultural Research
Performance of bread wheat genotypes under different environment in lowland irrigated areas of Afar Region, Ethiopia

Wheat is an important staple food for Ethiopian people, and its straw has been used as sources of feed for animals. Nine wheat genotypes introduced from International Center for Agricultural Research in the Dry Areas (ICARDA) were evaluated at Werer Agricultural Research Center from 2010/2011 to 2013/2014, at Gewane from 2011/2012 to 2012/2013 and at Waidulale in 2013/2014 cropping seasons using randomized complete...

Author(s): Mihratu Amanuel, Desta Gebre and Tolessa Debele

April 2018

African Journal of Biotechnology
Actinomycetes bioactive compounds: Biological control of fungi and phytopathogenic insect

Actinomycetes are aerobic and gram-positive spore forming bacteria. They belong to the order actinomycetales and are characterized by substrates and aerial mycelium growth. They are the most abundant microorganisms in soil. They play important roles in the cycling of organic matter and inhibit the growth of several plant pathogens in the rhizosphere. Due to the presence of enzymes such as proteases and chitinase,...

Author(s): Edelvio de B. Gomes, Léo Ruben L. Dias and Rita de Cássia M. de Miranda  

April 2018

African Journal of Biotechnology
Expression and purification of human IL-2 protein from Escherichia coli

Human interleukin 2 protein (IL-2) is an important cytokine found to be elevated in several types of cancer. A synthetic DNA sequence of the cDNA of mature IL-2 protein was cloned into the pRSET-B expression vector. The expressed IL-2 protein in Escherichia coli [BL21] was associated with the formation of insoluble inclusion bodies (IBs). The effect of different cultivation conditions (temperature,...

Author(s): Ramadan Hassan, Mohammed El-Mowafy and Eman Samy Zaher  

April 2018

African Journal of Biotechnology
Vitamin C, iron and zinc levels of selected African green leafy vegetables at different stages of maturity

Nutrient level at harvest of vegetables is an important aspect in the efforts to combat food and nutrition insecurity in developing countries. However information on the nutrient levels at different maturity stages of most indigenous African green leafy vegetables is scanty. This study was undertaken to determine the levels of vitamin C, iron and zinc in Amaranthus cruentus, Cleome gynandra and Solanum villosum at...

Author(s): Teddy Frederick Mamboleo, John Mbonea Msuya and Akwilina Wendelin Mwanri  

April 2018

Educational Research and Reviews
Enhancing pre-K-12 student learning outcomes: The need for synergies of policy-makers, school administrators and parents

Building strong synergy among policy-makers, school administrators, teachers and parents in the execution of their roles is very important to improve student learning outcomes. It helps to lay a firm educational foundation for children from Pre-K-12 and facilitates life-long learning in order to assist learners to acquire knowledge, skills, values and attitudes that empower them to contribute to sustainable development....

Author(s): Charles Gbollie and Shaoying Gong,  

April 2018

Educational Research and Reviews
Anthropological analysis of content knowledge of pre-service elementary mathematics teachers’ on graphs

The purpose of this study is to analyse the content knowledge on graphs of pre-service elementary mathematics teachers from an anthropological perspective. 112 pre-service elementary mathematics teachers participated in the study. Concentric mixed pattern research method has been used in the study. The data was collected through Graphic Content Knowledge Scale and interview method in order to examine the content...

Author(s): Filiz Tuba Dikkartin Övez and Nazlı Akar

April 2018

Educational Research and Reviews
Articulation of ethnomathematical knowledge in the intercultural bilingual education of the Guna people

The aim of this research is to study the fundamental elements used to broaden mathematical knowledge and to establish  guidelines for its development using Intercultural Bilingual Education (IBE) framework. This study is an experimental quantitative research. Problem solving pretest and posttest were given to the students of Carti Tupile School (control group) in Spanish and students of Sayla Olonibiginya School...

Author(s): Luisa Morales Maure, Diomedes Fábrega, Marcos Campo Nava and Orlando García Marimón ,  

April 2018

Educational Research and Reviews
Investigation of art literacy levels of fine arts education students

The purpose of this study is to examine the art literacy levels of fine arts education students. The study group consists of 111 music teacher candidate and 90 art teacher candidate, 201 students in total from Nigde Omer Halisdemir University, Fine Art Education Branch. The data of the work were collected by "Art Literacy Scale". The study was designed in a causal-comparative research model. In data analysis,...

Author(s): Aylin MENTİŞ KÖKSOY  

April 2018

African Journal of Pharmacy and Pharmacology
Effect of erythrinaline alkaloids from Erythrina lysistemon on human recombinant caspase-3

Prostate cancer is a leading killer disease among men all over the world. Inducing apoptosis (programmed cell death) is a strategic chemotherapeutic approach. Caspase-3 is a key effector of apoptosis, and its activation promotes apoptosis. It was hypothesized that erythrinaline alkaloids activate caspase-3. The alkaloids were isolated from the flowers and pods of Erythrina lysistemon. Their effect on human recombinant...

Author(s): Shanta Armwood, Bernard F. Juma, Japheth O. Ombito, Runner R. T. Majinda and Ephraim T. Gwebu  

April 2018

African Journal of Microbiology Research
Screening of bioactive compound, antimicrobial activity producing halophilic isolates from the saltpans of Thoothukudi district

Extreme environments harbor a number of microbes producing novel bioactive compounds. The aim of our study is to isolate and identify bioactive compound producing halophiles. Marine soil sediments were collected from the solar saltpans of Thoothukudi District, Tamil Nadu, India. Based on colony morphology, two species were isolated and identification was done by using morphological and biochemical tests. The extracts of...

Author(s): Deepalaxmi R. K. and Gayathri C.  

April 2018

African Journal of Microbiology Research
Effect of indigenous and effective microorganism fertilizers on soil microorganisms and yield of Irish potato in Bambili, Cameroon

Irish potato (Solanum tuberosum) is one of the world’s most consumed staple worldwide and an important crop in terms of food security in the face of population growth and increased hunger rates. Potato yields in Cameroon have often been low as a result of decrease in soil fertility. Soil fertility has often been regarded as the chemical and physical properties of soil, with the microbial aspect often being...

Author(s): Taffouo Victor Desiré, Muyang Rosaline Fosah, Mbouobda Hermann Desiré, and Fotso,  

April 2018

African Journal of Microbiology Research
Ameliorative effect of imipenem on pulmonary damage caused by extended spectrum β-lactamase (ESBL) producing bacteria isolates from non- human source

Acute lung infection induced by Extended Spectrum β-Lactamases (ESBL) producing isolates was determined by measuring inflammatory mediators; malondialdehyde (MDA), myeloperoxidase (MPO) and nitric oxide (NO). The mice were randomly divided into three groups of 20 animals each. All mice were given 104 c.f.u. ml-1 of the test organism intranasally in a volume of 50 µl while holding the mouse in an upright...

Author(s): Afunwa R. A., Iroha R. I., Ugwu M., Afunwa E. C., Unachuchwu M. N. and Esimone C. O.  

April 2018

African Journal of Agricultural Research
Nutrient absorption march and accumulation of nutrients in developing Roxo de Valinhos fig (Ficus carica L.) tree, cultivated under different water regimes

The nutrient absorption march in fig (Ficus carica L.) trees and other fruit trees has been studied only at the seedling stage, and little is known about nutrient accumulation in perennial plants when the entire life cycle of the plant is considered. To this end, the present study aimed to evaluate nutrient accumulation in the Roxo de Valinhos fig tree, cultivated with and without supplemental irrigation. The split-plot...

Author(s): Manoel Euzébio de Souza, Sarita Leonel, Andréa Carvalho da Silva, Adilson Pacheco de Souza, Ana Heloisa Maia, Roberto Lyra Villas Boas and Adriana Aki Tanaka

April 2018

African Journal of Agricultural Research
Nitrogen and phosphate fertilizers in elephant-grass for energy use

Nitrogen is the mineral element that plants most require. Its deficiency quickly inhibits plant growth. Excessive nitrogen fertilization raises the cost of biomass production. Therefore, there is a need to find the appropriate dose of nitrogen fertilizer that provides greater efficiency in dry matter production. The objective of this study was to evaluate the effects of nitrogen and phosphate fertilizers on the chemical...

Author(s): José Augusto de Almeida Sant&#;Ana, Rogério Figueiredo Daher, Niraldo José Ponciano, Marcia Maria Paes Santos, Alexandre Pio Viana, Erik da Silva Oliveira, Francisco José da Silva Ledo, Bruna Rafaela da Silva Menezes, Carlos Lacy Santos and Wallace Luís de Lima  

April 2018

African Journal of Agricultural Research
Thermal comfort analysis of agricultural machinery operators with thermography

Heat stress appears as a strong candidate for physical wear and tear, leading to lower yields and high risks of accidents due to lack of attention. In this context, this work aims to study the possible influence of the internal temperature of metal roof tractor, skin temperature of face operator, relating it to possible physiological responses connected with environmental variables such as relative humidity air and wind...

Author(s): Murilo Mesquita Baesso, Vinicius Bertuga Do Amaral, Alcir José Modolo, Clovis Fischer, Emerson Trogello,  Jonathas Cassimiro Silvestrini, Raquel Couto Evangelista Baesso and Marco Aurélio Spoljaric Gonçalves  

April 2018

African Journal of Agricultural Research
Towards being equal to them: Impact of organic certified production systems on women empowerment in agriculture

The objective of the study was to determine the degree of women empowerment in agriculture as well as examine the effect of organic certification and other socio-economic and cultural factors on women empowerment in agriculture in Kenya. This objective was achieved using data from peri-urban vegetable and rural honey producing households. It followed the innovative multidimensional measurement of women empowerment in...

Author(s): Oscar Ingasia Ayuya  

April 2018

African Journal of Agricultural Research
Genotypic variability in some sun flower (Helianthus annuus L.) hybrids evaluated in Khordunia under rainfed conditions

Twenty locally generated hybrids of Sun flower (Helianthus annuus L.) hybrids were evaluated in two seasons (2012 and 2013) for yield and yield components at Khordunia area, Blue Nile State under rain fed conditions. A randomized complete block design with six replications was used for laying out the field experiments. The seeds were sown in the second and third week of July in the first and second seasons, respectively...

Author(s): Mohamed E. K. Fadlalla, Hashim A. Fadlalla, Abdelwahab H. Adbdalla and Murwan K. Sabahelkhair  

April 2018

African Journal of Agricultural Research
Prospection and production of Solanaceae species resistant to the root knot nematode

Plant species of Solanaceae family are affected by numerous pathogens worldwide. Among them is the root-knot nematode which hinders the establishment of crops in the field, reducing their production capacity. This work aims to select Solanaceae species tolerant or resistant to root-knot nematode under the climatic conditions of Fortaleza, Ceará. Two experiments were performed. For both, the followings were...

Author(s): Janiquelle da Silva Rabelo, Marcelo de Almeida Guimarães, Carmen Dolores Gonzaga Santos, Benedito Pereira Lima Neto, Ana Régia Alves de Araújo Hendges, Caris dos Santos Viana, Jean Paulo de Jesus Tello and Hozano de Souza Lemos Neto

April 2018

African Journal of Agricultural Research
Effects of market price, cultivating area and price regulation on cotton production in China

This study examines the quantitative effects of market price in cotton producing areas of China. It also analyzes the qualitative effects of price regulation on cotton production. Secondary time series data were collected from National Bureau of Statistics in China, between 1990 and 2013. Calculation of the growth rate of cotton in production was done using linear trend model and multi-regression model to analyze the...

Author(s): Mansoor Ahmed Koondhar#, Lingling Qiu#, Xingyue Liu, Fahmida Abbassi, Masroor Ali Koondhar and He Ge  

April 2018

African Journal of Agricultural Research
Effect of calcium chloride dipping treatment on quality of Ziziphus spina-christi L. fruits during cold storage

Zizyphus spina-christi L. is one of the wide varieties of plant grown in Al-Ahsa Oasis in Saudi Arabia and known locally as Alnabaq (buckthorn). The objective of this investigation was to study the effects of postharvest calcium chloride applications on fruit quality of buckthorn under cold storage condition at 2°C and 90% RH for 5 weeks.¬¬ Fruits were dipped in calcium chloride at different concentrations...

Author(s): Mohamed S. AL-Saikhan  

April 2018

African Journal of Agricultural Research
Saflufenacil and indaziflam herbicide effects on agricultural crops and microorganisms

The herbicides saflufenacil and indaziflam have recently been registered in Brazil for weed control in sugarcane crops; however, little information exists regarding their residual effects or influences on soil microorganisms. Therefore, the present study aimed: (a) to determine the effects of saflufenacil and indaziflam on soil microorganisms and (b) to evaluate the residual and dose effects of these herbicides on...

Author(s): Beatriz Alexandre Torres, Silvana Perissatto Meneghin, Nágilla Moraes Ribeiro, Paulo Henrique Vieira dos Santos, Bruna Ferrari Schedenffeldt, and Patricia Andrea Monquero  

April 2018

African Journal of Agricultural Research
Integrated crop management (ICM) for increasing rice production in Barind area

An experiment was conducted at the Agronomy Field Laboratory, University of Rajshahi during the period from June, 2015 to December 2015 to study the effect of Integrated Crop Management (ICM) practice for increasing rice production in Barind area, Bangladesh. The experiment consisted of two factors that is, two variety which is BRRI dhan56 and BRRI dhan57, and five management practices like control, only weed...

Author(s): N. Khatun, M. A. Rahman and P. Devi

April 2018

African Journal of Biotechnology
Adaptation of sweet potato [Ipomoea batatas) (L.) Lam] genotypes in various agro-ecological zones of Malawi

Sweet potato [Ipomoea batatas) (L.) Lam] is grown by small holder farmers across a wide range of environments in Malawi. A multi-location trial of eight genotypes for three seasons at six research stations was undertaken using additive main effects and multiplicative interaction (AMMI) model analysis to determine the genotypes’ stability and influence of genotype × environment interactions (GEI) on storage...

Author(s): Felistus Chipungu, Wisdom Changadeya, Aggrey Ambali, John Saka, Nzola Mahungu and Jonathan Mkumbira  

April 2018

African Journal of Biotechnology
Assessment of plantain (Musa sapientum L.) accessions genotypic groups relatedness using simple sequence repeats markers

Plantains are important sources of high-calorie energy in Ghana. They are also of great socio-economic importance in the country, and very important sources of rural income. Although several species exist all over the world, plantains belonging to the AAB group are unique to West Africa and Ghanaian collections have unique features and peculiar taste. Morphological and biochemical characterization are the popular...

Author(s): Marian D. Quain, Adelaide Agyeman and Beloved M. Dzomeku  

April 2018

International Journal of Physical Sciences
Investigating influence of the phases of solar activity cycle 23 on coronal mass ejections transit time

It has been established that Coronal Mass Ejections (CMEs) follow the phase of solar activity cycle. CMEs are known to be the major cause of geomagnetic storms which have devastating effects on earth atmosphere. Predicting their arrival times has been a major issue in space weather forecast. Influence of the phases solar activity cycle 23 on CMEs transit time were investigated using fast CMEs data with initial speed...

Author(s): Ojih Victoria B. and Okeke Francisca N.  

April 2018

International Journal of Physical Sciences
A compact and sensitive avalanche photodiode-based gamma detection and spectroscopy system

This research presents the design of a simple and compact yet sensitive gamma detection system which finds optimal utility in student research and demonstration purposes. The design is based on an Avalanche Photodiode (APD), a compact solid-state device. It was argued that, by the virtue of its concise size, simplicity and lower cost, an APD based gamma detection system is a better alternative in these applications as...

Author(s): Masroor H. S. Bukhari and A. Rauf  

April 2018

African Journal of Pharmacy and Pharmacology
In vivo assessment of the antipyretic activity of tilmicosin

The aim of the present study was to assess the antipyretic activity of the macrolide antibiotic, tilmicosin, at dose levels of 20 and 40 mg/kg of body weight, subcutaneously, in Brewer's yeast-induced fever model in mice. Pyrexia was induced by subcutaneous injection of 20 mL/kg of 20% (w/v) Brewer’s yeast suspension into the animal’s scruff region. Eighteen hours later, feverish animals were treated...

Author(s): A. M. El-Mahmoudy, I. M. Gheith, A. A. Elmajdoub and S. K. Awidat

April 2018

Scientific Research and Essays
Path analysis to evaluate the direct and indirect effects of climatic variables in the development stages of Tuta absoluta (Lepidoptera: Gelechiidae) in tomato (Solanum lycopersicum L.)

The objective of this study was to evaluate the influence of climatic variables on the population dynamics of the tomato moth Tuta absoluta (Meyrick, 1917), (Lepidoptera: Gelechiidae) through correlations and path analysis, on the main variable in organic and conventional tomato crops (Solanum lycopersicum L., Solanaceae). We studied the effects of the pheromone (used Delta traps) on insect phase sampling in two areas...

Author(s): Rubens Pessoa de Barros, Ligia Sampaio Reis, Isabelle Cristina Santos Magalhães, Claudio Galdino da Silva, Miriany de Oliveira Pereira, Ana Cléía Barbosa de Lira, Jaciara Maria Pereira e Silva, João Gomes da Costa and Elio Cesar Guzzo

April 2018

African Journal of Business Management
Rigidity and performance threshold: How routinization process affects dynamic capabilities

Dynamic capabilities view has been considered vital to the long-term survival and adaptation of organizations in dynamic environments. Although, rich literature has probed into how dynamic capabilities are able to address organizational inertia issues and facilitate change, there are still heated debates on questions on dynamic capabilities’ heterogeneity and performance. Current thinking was integrated in major...

Author(s): Qiguo Gong and Zhiyuan Shang

April 2018

African Journal of Business Management
Is integrated reporting a new challenge for public sector entities?

Integrated reporting (IR) is a new communication tool that is gaining increasing attention among scholars, practitioners, and standard setters in both the private and public sectors. Therefore, it is important to discuss the suitability of the framework proposed by the International Integrated Reporting Council (IIRC). This paper offers some reflections based on case studies of public entities that differ in terms of...

Author(s): Francesca Manes-Rossi

April 2018

African Journal of Business Management
Effect of Chinese outward foreign direct investment on international trade of Africa

This article aimed at analyzing the relationship between foreign direct investments from China and the international trade of African countries. International trade was found to be affected by the degree of openness of the economy, the level of exports and the level of imports. The findings were brought out by using a Vector Error Correction Model in a cylindrical panel of 52 African countries on a period going from...

Author(s): Wang Aihu and Adolphe Bertrand Chedjou

April 2018

African Journal of Microbiology Research
Evaluation of gene xpert assay and microscopic examination for detection of Mycobacterium tuberculosis in sputum at Port Harcourt, Nigeria

The re-emergence and increase in the prevalence of tuberculosis cases and multidrug resistant strains is of public health concern. The conventional Acid Fast Bacilli detection tool is weak in the current disease trend especially in children, patients with human immunodeficiency virus (HIV) and low bacterial load. The aim of this research was to assess effectiveness of the Gene Xpert MTB/RIF assay and Microscopy in...

Author(s): Confidence Kinikanwo Wachukwu, Stella Paulinus Okwelle, Easter Godwin Nwokah and Ollor Amba Ollor  

April 2018

African Journal of Microbiology Research
Characterization of p30 membrane protein gene of Mycoplasma agalactiae isolates by polymerase chain reaction and restriction endonuclease enzyme assay

Seven hundred and eight (708) samples collected from the goats of Gujarat were screened for Mycoplasma agalactiae by culture and PCR using 16S rRNA based genus specific and species-specific primers. Amplification of the p30 membrane protein gene was carried out using specific primers and the resultant amplicons were subjected to restriction enzyme analysis. The isolates yielded 715 bp and 360 bp products with...

Author(s): Pranay K., Roy A. and Aher T. K.  

April 2018

African Journal of Agricultural Research
Quality of Soil in the function of biological fertilization and plant covering

The yield of soybean was influenced by the chemical and microbiological properties of the soil, which was favored by management techniques that promote improvement in soil quality. The objective of this study was to evaluate soybean yield, chemical and microbiological quality of the soil as a function of biological fertilization and soil cover conditions. The experiment was conducted in both crops seasons 2015/16 and...

Author(s): João Paulo Ascari, Dejânia Vieira de Araújo, Inês Roeder Nogueira Mendes, Marcos Vinícius Foschiera, Rafael Sbruzzi Prieto, Wagner Henrique Moreira Barboza, Willian Krause and Leopoldo Sussumu Matsumoto

April 2018

African Journal of Agricultural Research
A survey of the insect pests and farmers’ practices in the cropping of yellow pepper Capsicum annuum Linnaeus in Enugu State of Eastern Nigeria

Yellow pepper (Capsicum annuum L.) is the second market gardening crop after tomato, and subsequently, a major source of income to farmers in Nigeria. Pests and diseases reduce yields and quality of marketable fruits. A study was conducted in Ibagwa-Agu, Lejja, Edem, Alor-Uno and Eha-Alumona agro-based communities of Nsukka Local Government Area to assess the economic implications of insect infestation and control...

Author(s): Ekenma Julia Agwu, Gregory Ejikeme Odo, Felicia Ekeh, Gerald Nnadi Attamah, Michael Uwagbae and Chukwuemeka Eze

April 2018

African Journal of Agricultural Research
Seed health tests of traditional leafy vegetables and pathogenicity in plants

Traditional leafy vegetables play a significant role in the daily diets of many people in Zimbabwe. They are produced by smallholder farmers with limited knowledge on the agronomic value of high-quality seed, on seed storage, and on plant- and seed-borne pathogens. The quality of the seed is rarely tested for seed-borne pathogens posing risks of pathogen build-up. This study was conducted in order to determine the...

Author(s): Praxedis Dube, Paul C. Struik and Elizabeth Ngadze

April 2018

African Journal of Agricultural Research
Soybean development under soil water deficit

One of the main factors affecting soybean development is water deficiency, especially when it occurs during the flowering and pods filling stages. Thus, this study aimed to evaluate the soybean development under soil water deficit in different phenological phases, under soil and climatic conditions of Bom Jesus, Piaui State, Brazil. The test was conducted at São Luiz Farm, located 3 km from Bom Jesus  to...

Author(s): Marcelo Simeão, Aderson Soares de Andrade Junior, Everaldo Moreira da Silva, Aureliano de Albuquerque Ribeiro and Edson Alves Bastos

April 2018

African Journal of Agricultural Research
Rice farmers’ perception of climate change and adaptation strategies in the Ketu North District, Volta Region of Ghana

This study assessed rice farmers’ perception of climate change and adaptation strategies in the Ketu North District, Volta Region of Ghana. Climate variables particularly precipitation and temperature were taken in the climate change perception study. Multistage sampling technique was used to select 340 rice farmers from six farming sections, and a structured questionnaire was used to elicit data from the...

Author(s): Jacob Binda Kolleh and Marcus Tobodawolo Jones

April 2018

African Journal of Agricultural Research
Cropping systems and soil quality and fertility in south-central Uganda

Little is known about how cropping systems influence soil quality and fertility in Uganda. Some cropping systems are more valued and as a result are given more nutrients and planted in certain soils, all of which leads to varying soil quality and fertility. This study compared soil quality (soil pH, cation exchange capacity (CEC), electric conductivity (EC), total N, and depth to restrictive layer (DRL)) and fertility...

Author(s): Nataliya Apanovich, and Andrew W. Lenssen

Page 5 of 1122, showing 50 records out of 56058 total, starting on record 201, ending on 250