African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6183

AJAR Articles

July 2018

Screening of cowpea (Vigna unguiculata (L.) Walp.) lines for resistance to three Aphids (Aphis craccivora Koch) strains in Burkina Faso

Cowpea (Vigna unguiculata L. Walp.) is an important cash, food and nutritional security grain legume crop in the semi-arid regions of sub-Saharan Africa. However, its productivity is hampered by several biotic stress factors including numerous insect pests that infest and damage the crop at all its development stages in the field as well as during storage. This study sought to identify new sources of resistance to...

Author(s): Adelaїde P. Ouédraogo, Benoit J. Batieno, Fousseni Traore, Jean-Baptiste Tignegre, Bao-Lam Huynh, Philip A. Roberts, Timothy Close and Jeremy T. Ouédraogo  

July 2018

Technical efficiency and yield gap of smallholder wheat producers in Ethiopia: A Stochastic Frontier Analysis

Improving technical efficiency of smallholder farmers is one of the options to increase wheat yield in developing countries. This paper assesses technical efficiency, factors for inefficiency and the yield gap due to technical inefficiency in major wheat producing regions of Ethiopia, where the support to agricultural research for development of strategic crops (SARD-SC) wheat project has been implemented using primary...

Author(s): Tadele Mamo, Wudineh Getahun, Ali Chebil, Agajie Tesfaye, Tolessa Debele, Solomon Assefa and Tesfaye Solomon  

July 2018

Direct shoot regeneration from hypocotyl explants of Heracleum candicans Wall: A vulnerable high value medicinal herb of Kashmir Himalaya

Heracleum candicans belongs to the family Apiaceae, and is categorized as a vulnerable Himalayan medicinal herb. Due to its diverse chemical constituents it is having an increased demand in pharmaceutical industries, especially in international market. This herb is commercially useful as a major source of Xanthotoxin which is widely used to treat leucoderma and to prepare suntan lotions. During the present study direct...

Author(s): Mahroofa Jan, Seema Singh, Farhana Maqbool and Irshad Ahmad Nawchoo  

July 2018

Use of millimeter ruler as an alternative tool in the phenotyping of potential descriptors of soybean

The soybean stands out in the Brazilian agribusiness and part of this success stems from the development of improved cultivars. One of the requirements for the concession of protection to a given cultivar is that it should be distinct from others cultivars. Potential additional descriptors of soybean have been studied. Thus, the aim of this study was to evaluate the performance of the millimeter ruler in the measurement...

Author(s): Ronaldo Machado Junior, Guilherme Ferreira Alves, Victor Afonso Reis Gonçalves, Sylas Clemente Oliveira, Ronaldo Silva Gomes, Paulo Roberto Cecon, Silvana da Costa Ferreira and Eder Matsuo  

July 2018

Screening for resistance to Striga gesnerioides and estimation of yield loss among Cowpea (Vigna unguiculata (L.) Walp.) progenies in the Upper East Region of Ghana

Parasitic weed Striga gesnerioides (Willd.) is one of the major constraints of cowpea production. Host-plant resistance seems to be efficient and economical in controlling the pest. The objectives of this study were to evaluate recombinant inbred lines developed between IT97K 499-35 (Striga resistant parent,) and Sanzi (susceptible parent), by Single Seed Descent (SSD), for Striga resistance in Northern Ghana. The study...

Author(s): Leandre, S. P., Francis, K., Richard, A., Joseph, B., Jean Baptiste T, Jeremy T. Ouedraogo, Patrick A., Timothy J. Close and Philip A. Roberbs

July 2018

Cultivation of common bean with the application of biochar of ouricuri (Syagrus coronata (Mart) Becc.) endocarp

Biochar has attracted the attention of the scientific community due to its promising applicability and contribution to the elevation of soil chemical and biological aspects, directly influencing the microbiota, fertility levels and yield of agricultural crops. The objective of this study is to determine the chemical and biological attributes of an acrisol cultivated with beans and submitted to the application of...

Author(s): Felipe Alexandre Tenório, Abel Washington De Albuquerque, Tania Marta Carvalho Dos Santos, João Inácio Soletti, Ferdnando Mariano Brito Silva and Karoline De Melo Padilha  

July 2018

Greenhouse gas emissions from an alkaline saline soil amended with urea: A laboratory study

Soil of the former lake Texcoco is nitrogen (N) depleted, so any attempt to vegetate the area will require the application of an N fertilizer. Urea is commonly used as fertilizer, but its application to soil might affect emissions of greenhouse gases (GHG), such as carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4), and the high pH and electrolytic conductivity (EC) in the Texcoco soil might inhibit the...

Author(s): César Valenzuela-Encinas, Leslie Elizalde Contreras, Rocio J. Alcántara-Hernández, Marco Luna-Guido, Olivia Franco-Hernández, Víctor M. Ruíz-Valdiviezo, Luc Dendooven and Rodolfo Marsch  

July 2018

Climbing beans in Uganda: A perspective of smallholder farmers on their determinants, associated challenges and implications for research

In many parts of the world including Uganda climbing beans are mostly grown in highland areas where population density is high and land is limiting. The objective of this study was to contribute to understanding the current status of the factors affecting productivity of climbing beans among smallholder farmers in Uganda. Kisoro and Kabale districts in the South West were selected for the study. Primary data was...

Author(s): Rose Takusewanya, Annet Namayanja, Michael Adrogu Ugen, Stanley Nkalubo,Thomas Lapaka Odong and Godfrey Vianney Bwogi  

July 2018

Agriculture and food security under threat of change climate in Benin

Vulnerability of agriculture to climate change has been a key issue due to its negative effect on human survival. This study aims to determine the effect of climate change on the production of crops to draw the attention of plant breeders on the paramount necessity to breed new varieties that are tolerant to abiotic stress (drought, temperature, salinity and flooding) for the happiness of farmers. Data on the...

Author(s): Vincent Ezin, Ibouraïma Yabi, Emeric G. M. Kochoni and Adam Ahanchédé  

July 2018

Assessment of soil characteristics under four cropping and land management systems in south west Nigeria

Soil degradation and desertification pose a major threat to agricultural production in sub-Saharan Africa. The influence of cropping systems which had been established on selected physical and chemical properties of soil were investigated in Akinyode-Okinni community in Egbedore Local Government Area (LGA) of Osun State, Nigeria. The cropping systems included agri-silviculture (SCM), silvi-pasture (SPC),...

Author(s): Wasiu Agunbiade Lamidi, Onyegbula Chike Nwoke and Kabiru Alani Shittu  

June 2018

Benefits of grass-legume inter-cropping in livestock systems

Legumes (Fabaceae) are plants with the distinct ability to fix atmospheric nitrogen, the atmospheric nitrogen fixation by legumes is known as biological nitrogen fixation. Biological nitrogen fixation is the process whereby atmospheric nitrogen is reduced to ammonia in the presence of the enzyme nitrogenase. Nitrogen fixation in legumes starts with the formation of nodules. Inside the nodules, nitrogen fixation done by...

Author(s): Unathi Gulwa, Nobulungisa Mgujulwa and Solomon T. Beyene

June 2018

In support of a well-planned intercropping systems in south eastern soils of Nigeria: A review

Soil is the medium for all crop production activities and many of the tropical soils especially soils of South Eastern Nigeria show nutrient deficiency problems after only a short period of cultivation because of the fragile nature and prevailing environmental condition. Land available for further crop production purposes in this area is very limited. To offset some of these problems and boast crop production and yields...

Author(s): Nweke I. A.  

June 2018

Adaptability and genotype-environment interaction of finger millet (Eleusine coracana (L.) Gaertn) varieties in North Eastern Ethiopia

An experiment was conducted to study the adaptability and genotype × environment interaction of finger millet varieties in the north eastern part of Ethiopia. Eight finger millet varieties and a local check were tested at Sirinka, Kobo, and Jari in 2013 and 2014 cropping season. The experiment was laid out in a randomized complete block (RCB) design with three replicates. The result showed that the year 2013 was...

Author(s): Mulugeta Mamo, Fisseha Worede, Yemata Bezie, Solomon Assefa and Tsegaye Gebremariam  

June 2018

Characteristics of three morphotypes of Solenostemon rotundifolius [(Poir.) J. K. Morton] based on qualitative morphological traits

Solenostemon rotundifolius [(Poir.) J. K. Morton] (Lamiaceae) is commonly called Fabirama, Frafra potato or Innala. It is a tuber crop cultivated in many countries in Africa and Asia. Its tubers contain significant rate of carbohydrates, proteins, fibers, vitamins and antioxidants. Besides its nutritional attributes, S. rotundifolius has also strong agronomic and economic potentialities and could be financially...

Author(s): Romaric, K. Nanema, Pauline Bationo-Kando, Mahamadi Hamed Ouedraogo, Nerbewendé Sawadogo, Daniel Nyadanu, Aminata Hamidou, Renan Ernest Traore, Zakaria Kiebre, Mahamadou Sawadogo and Jean-Didier Zongo  

June 2018

Appropriate planting dates and plastic mulch for increasing common tomato varieties yield in South Texas

In South Texas, most of tomato (Lycopersicon esculentum Mill.) crops are produced on plastic mulch due to the elevated temperatures and solar radiations. The study objectives were to; determine the suitable planting dates for increasing tomato varieties production under different planting dates in early spring and late winter, and evaluate the influence of using the plastic mulch (black and white. In the Spring season,...

Author(s): Elsayed-Farag S., Anciso J., Marconi C., Avila C., Rodriguez A., Badillo-Vargas I.E., and Enciso J.,

June 2018

The complex distribution of plantain cultivars (Musa sp., AAB subgroup) in the Bas-Uele province of the Democratic Republic of Congo

Plantain is one of the most important sources of food in the African lowlands stretching from the lowlands of Guinea and Liberia to the central basin of the Democratic Republic of Congo (DR Congo). Because plantain cultivars do not produce seeds, plantain cultivation is based on vegetatively transplanted lateral shoots/suckers. The way by which plantain reached the African continent is still under speculation. The aim...

Author(s): Joseph Komoy Losimba, Joseph Adheka Giria, Benoît Dhed’a Djailo, Deborah Karamura, Guy Blomme, Rony Swennen, , and Edmond De Langhe

June 2018

The effects of drought on rice cultivation in sub-Saharan Africa and its mitigation: A review

Drought is the primary cause of yield loss in agriculture throughout the world, and is currently the most common reason for global food shortages. Three-quarter of the most severe droughts in the last ten years have been in Africa, the continent which already has the lowest level of crop production and drought adaptive capacity. The increased incidences of drought and erratic rainfall have thrown small holder farmers in...

Author(s): Ndjiondjop Marie Noelle, Wambugu Peterson Weru, Sangare Jean Rodrigue and Gnikoua Karlin

June 2018

Integrating crop and livestock in smallholder production systems for food security and poverty reduction in sub-Saharan Africa

The resource base that ensures food supply and the socio-economic component which depends on this resource base are the two major components that make up the food system in sub-Saharan Africa. The sequence of the food system is organized in a spatial flow framework of biomass base. The components of rural production system consist of food production biomass at homestead and farm level, and often at the communal base...

Author(s): Asrat Guja Amejo, Yoseph Mekasha Gebere and Habtemariam Kassa

June 2018

Evaluation of new papaya hybrids

To augment a narrow genetic base in papaya, this study aimed to evaluate the performance of new hybrids produced by Caliman Agrícola® S.A. The experiment was carried out in a randomized complete block design, with 12 treatments four replications and ten plants per plot. The treatments were the variety THB and the hybrids were CR1 × São Mateus, CR1 × 72/12, CR2 × São Mateus, CR3...

Author(s): Adriel Lima Nascimento, Alan de Lima Nascimento, Omar Schmildt, Karina Tiemi Hassuda dos Santos, Renan Garcia Malikouski, Rodrigo Sobreira Alexandre, Laercio Francisco Cattaneo, José Augusto Teixeira do Amaral, Márcio Paulo Czepak, Geraldo Antônio Ferreguetti and Edilson Romais Schmildt  

June 2018

Patterns of pre-weaning piglet mortality and economic losses in field condition

The study was purposively taken up with the objective to find out the patterns of pre-weaning piglet mortality and economic losses in field condition. The study was purposively taken up in Gorkhaland Territorial Administration area where pig farming is a common practice. The study shows that overall pre-weaning piglet mortality was 15.62% where it was slightly higher in exotic than indigenous breed. Highest pre-weaning...

Author(s): Roy R., Mondal T. and Moktan M. W.

June 2018

Performance of maize hybrids from a partial diallel in association with Azospirillum

One of the most prominent strategies to increase maize grain yield with a higher benefit/cost ratio and a lower environmental impact is the inoculation of plant growth-promoting bacteria. Among other factors, the success of the interaction plant-microorganism depends on genetic traits, therefore, selection of plant genotypes compatible with this association is extremely important to the viability of this technology....

Author(s): Alessandra Koltun, Alana Padia Cavalcante, Karla Bianca de Almeida Lopes, Matheus Dalsente Krause, Thiago Pablo Marino, André Luiz Martinez de Oliveira and Josué Maldonado Ferreira

June 2018

Microbial diversity as a soil quality indicator in agroecosystems in Brazilian Savannas

The importance of sustainable use of natural resources, especially of soil and water, has been a subject of increasing relevance. The increase of human activity in ecosystems has great impact on the dynamics of soil organisms. The comparison between cultivated systems and native areas without anthropic interference can be used as soil quality index. Microorganisms are ideal indicators because they are very sensitive to...

Author(s): Moura, Jadson Belem de, Ventura, Matheus Vinicius Abadia, Vieira Junior, Wagner Gonçalves, Souza, Rodrigo Fernandes, Lopes Filho, Luiz Cesar, Braga, Ana Paula Maciel, Matos, Diogo Jânio de Carvalho and Rocha, Elivan Cesar Vieira

June 2018

Is quantitative genetics still necessary in this age of genomics?

Quantitative genetics and genomics are two different disciplines that have separate evolutions. The quantitative genetics has enormous applications and has contributed a lot in four main distinct fields of plant breeding, animal breeding, evolutionary genetics and human genetics. This field is based on study of inheritance patterns and their underlying mechanisms using biometrical or statistical methods. The analysis of...

Author(s): Rukundo Placide, Karangwa Patrick and Uzayisenga Bellancille

June 2018

Efficiency of pre-inoculation of soybeans with Bradyrhizobium up to 60 days before sowing

The inoculation of nitrogen-fixing bacteria in soybean crops allows the achievement of high crop yield by reducing or eliminating the application of nitrogen fertilizers. Pre-inoculation of seeds can reduce costs and increase the efficacy of this agricultural practice. The objective of this study was to assess the efficacy of pre-inoculation of soybean seeds with a commercial inoculant of Bradyrhizobium (RIZOLIQ...

Author(s): Gabriela Silva Machineski, Andrea Silva Scaramal, Maria Aparecida de Matos, Oswaldo Machineski and Arnaldo Colozzi Filho

June 2018

Effect of seed rate on upland cotton (Gossypium hirsutum) seedling emergence

The most important factor to achieving profitable cotton yields is obtaining a uniform stand of healthy and vigorously growing seedlings. Cotton seedling emergence highly depends on the number of seeds that are planted on the same planting station. The cotton seedling stalk is weak and may fail to push up and crack the soil in order to emerge. Therefore several seedlings put together may use the power of numbers to push...

Author(s): Gwiranenzara C., Chapepa B., Mubvekeri W. and Kutywayo D.

June 2018

Soil organic carbon stock under different land use types in Kersa Sub Watershed, Eastern Ethiopia

Understanding and assessing soil organic carbon stock (SOCS) within the framework of greenhouse gas emissions and land degradation is so crucial in combating climate change and enhancing ecological restoration. The goal of this study was to quantify the current SOCS in major land use types in Kersa sub watershed, eastern Ethiopia. Replicated soil samples from 0 to 20, 20 to 40, and 40 to 60 cm depth were collected from...

Author(s): Yared Mulat, Kibebew Kibret, Bobe Bedadi and Muktar Mohammed

June 2018

What factors influence performance of farmer groups? A review of literature on parameters that measure group performance

Farmers form and participate in groups in order to benefit socially and economically through collective activities. However, membership in groups alone is not enough to facilitate improvement of livelihoods, owing to the fact that only successful groups would be able to fully exploit their potential and meet the interests of their members. Understanding group performance is therefore a pertinent issue among social...

Author(s): Sheilla Jeruto Tallam

June 2018

An on-farm comparison of the agronomics and economics of irrigated maize production systems in the Somali Deyr season

Domestic production only supplies half of Somalia’s cereal requirements and more than half of the country’s population is considered food insecure.  In this study, the Somali Agriculture Technical Group (SATG) used an on-farm participatory research approach to compare the economic viability and plant yield parameters of an improved maize production system (SATG system) with those of the traditional...

Author(s): Ryan Gavin, Hussein Haji, Nicolas Jelinski and Paul Porter

June 2018

The effect of velvet bean (Mucuna cinerea) extract on seedling growth of winter cereals

Some plants can have a beneficial or harmful effect on the germination and growth of other plants. This is known as the allelopathic effect. The objective of this study was to evaluate the effect of different doses of velvet bean (Mucuna cineruim) aqueous extract on germination and initial seedling growth of three winter cereals: white oat (Avena sativa), rye (Secale cereale) and wheat (Triticum aestivum). The...

Author(s): Cristiana Bernardi Rankrape, Ivan Carlos Zorzzi, Fabiana Rankrape, Jhessica Bortolotti, Pedro Valério Dutra Moraes, Dalva Paulus, Paulo Fernando Adami and Patricia Rossi

June 2018

Response of taro (Colocasia esculenyta (L.)) to variation in planting density and planting dates on growth, radiation interception, corm and cormels yield in Southern Ethiopia

Taro production is mainly affected by agroecology, planting time and planting density.  To this effect, a field study was conducted to determine influences of planting density and planting dates on growth, radiation interception and yields of taro (Colocasia esculenyta (L.)). The experiment was conducted using four levels of planting density (15037, 19607, 26666 and 38461 plants ha-1) and four planting dates from...

Author(s): Alemu Dessa, Bizuayehu Tessfaye, Walelign Worku, Amsalu Gobena and Anne Kathrine Hvoslef-Eide

June 2018

Climate analysis for agricultural improvement of the Economic Community of West African States according to Köppen and Thornthwaite

The Economic Community of West African States (also known as ECOWAS from its name in French: Union Économique et Monétaire Ouest-Africaine) is composed of eight countries: Benin, Burkina Faso, Ivory Coast, Guinea-Bissau, Mali, Niger, Senegal and Togo. This study is restricted to ECOWAS because it stems from a survey mission headed by the second author and aims to characterize the climate of the territory...

Author(s): MÜLLER, Marcela dos Santos, DOURADO-NETO, Durval, TIMM, Luís Carlos, REICHARDT, Klaus, SARTORI, Felipe Fadel and FELISBERTO, Guilherme

June 2018

Estimation of amylose, protein and moisture content stability of rice in multi locations

Rice quality is measured of the rice grown on different five locations by an auto grain analyzer. Auto Grain analyzer works on the Near-Infrared transmittance (720 - 1100 nm). Protein, amylose and moisture contents of the rice samples of 9 fine lines were tested. Different environment tested entries were evaluated and found that all the values have highly significant effect of environment and genotypes. The environment...

Author(s): Misbah Riaz, Muhammad Akhter, Muhammad Iqbal, Sultan Ali, Rana Ahsan Raza Khan, Mohsin Raza, Farrah Shamim and Neelum Shahzadi

June 2018

An agronomic approach to screen sugar and energy cane genotypes for drought tolerance

Sugarcane production can be affected by extreme environmental conditions, such as drought stress. This study focused on establishing a screening method to evaluate and select drought tolerant germplasm of Saccharum species. A new drought screening methodology is presented in this paper. A randomized block design experiment was conducted under greenhouse conditions with 2 months old seedlings of five genotypes of...

Author(s): S. Elsayed-Farag, M. De Almeida Silva, N.  Solis-Garcia, J. Enciso and J. Da Silva  

May 2018

In vitro regeneration of Treculia africana Decne. from embryo explants on different nutrients and sucrose conditions

The study is essential in reducing germination time of Treculia africana var. inversa. The effect of three different concentrations of sucrose namely 2, 3 and 4% were investigated on the in vitro regeneration of embryo explants of T. africana Decne. on the media of Murashige and Skoog (MS) and Gamborg et al. (B5)  respectively without any growth regulator. The experimental design was a 2 × 5 factorial in a...

Author(s): Isaac, U. G., Okafor, C. U. and Okezie, C. E. A

May 2018

Harnessing cultivar performance and stability for deploying superior groundnut plant types in the Lake Albert Crescent Zone of Uganda

Groundnuts (Arachis hypogaea L.) are the second most important legume crops after beans, an important source of protein (23 to 25%), fats/oils (40 to 52%) and carbohydrates (10 to 20 %) and widely grown and consumed in Uganda including the Lake Albert Crescent Zone (LACZ). Due to susceptibility of local varieties to groundnut rosette, National Agricultural Research Organisation (NARO) through the National Semi Arid...

Author(s): Kakeeto, R., Wambi, W., Barwogeza, M., Auma, L., Odongo, W., Ozuma, G. and Ssekiwoko, F.

May 2018

Characterization and evaluation of volatile compounds of three grape varieties (Vitis labrusca) from the region of Bento Gonçalves – RS

In grape must, the aroma is an indication of adequate conservation status. It is able to indicate losses due to thermal degradation, besides representing a great contribution in the properties of the sensorial quality of the grape juices most appreciated by consumers. This study identified the volatile compounds in different must cultivars of Vitis labrusca grapes. The volatile composition was evaluated by the solid...

Author(s): I. T. S. Viana, H. V. Pereira, M. R. Silva, M. N.S. Guedes, A. G. de Souza, R. Augusti, J. R. L. Freitas, G. H. Bueno and J. O. F. Melo

May 2018

Can early peroxidase quantification detect graft-compatible in anonaceous rootstocks?

This study aimed to quantify the class III peroxidase activity in young plants of different species belonging to Annonaceae botany family, with high potential as a rootstock, for early detection of graft-compatible atemoya (Annona x atemoya Mabb.). The experimental design was randomized block, that evaluated the species araticum-de-terra-fria (Annona emarginata (Schltdl.) H. Rainer ‘variety terra-fria’),...

Author(s): Daniel Baron, Amanda Cristina Esteves Amaro, Ana Claudia Macedo, Carmen Sílvia Fernandes Boaro and Gisela Ferreira

May 2018

Nutritive potential of amaranth weed grains

Amaranthus is a species with immense potential; however, information on its nutritional properties is limited, though widely cultivated in some countries. The objective of this work is to characterise the grains of three species of Amaranthus sp. aiming at their food potential, comparing two species considered as weed with a commercially grown species. The selected materials were cultivated and submitted to the same...

Author(s): João Barcellos Xarvier, Douglas Correa de Souza, Leticia Cavalheiro de Souza, Thiago Sampaio Guerra, Luciane Vilela Resende and Joelma Pereira

May 2018

Plant cover management and nitrogen fertilization in maize crop in a dystrophic red Latosol Brazilian Cerrado (Savannah)

An experiment was conducted in the agricultural year 2014/2015, aiming to evaluate the management of anticipated nitrogen fertilization, applied with a slow-release source in maize crop with two plant covers, in a Dystrophic Red Latosol. Matching the Oxisols in Soil Taxonomy and Ferralsols FAO/United States WRB (Unesco soil classification and the World Reference Base for Soil Resources. Pennisetum glaucus (Pennisetum...

Author(s): José Antônio Maior Bono, Bruna Kelle Della Colleta ,Marlos Ferreira Dornas Silvia Rahe Pereira, José Francisco dos Reis Neto, and Bianca Obes Corrêa

May 2018

Effect of splitting nitrogen fertilization on Tifton 85: Yield, nitrogen use efficiency, and nitrogen nutritional status of plants and soil

This two year study aims to verify the necessity of splitting nitrogen (N) fertilization by assessing the effect of different N fertilization strategies (split and not split), on cultivated Tifton 85 (Cynodon spp.) accumulation rate and total dry matter (DM) production, as well as quantifying the levels of nitrate (NO3) in Red Dystrophic Oxisol. Research was carried out at the experimental unit of the Agronomic...

Author(s): Tangriani Simioni Assmann, Etiane Tanise Sonego, Alceu Luiz Assmann, Paulo Fernando Adami and Claucia Cuzzi,

May 2018

Major biotic maize production stresses in Ethiopia and their management through host resistance

Biotic stresses are recently evolving very rapidly and posing significant yield losses of maize production in Ethiopia. A number of high yielding maize hybrids, initially developed as tolerant/resistant, have been taken out of production due to their susceptibility to major maize diseases. Furthermore, recent disease and insect pest epidemics have clearly shown the importance of breeding maize for biotic stresses and...

Author(s): T. Keno, G. Azmach, D. Wegary, M. Worku, B. Tadesse, L. Wolde, T. Deressa, B. Abebe, T. Chibsa and L. M. Suresh  

May 2018

Defense response by inter-active bio-protector and chitosan to Sclerotium rolfsii Wilt disease on cowpea, Brazilian Oxisol

Pathogenic microorganisms increase enzyme production and plant response, causing injuries and even plant death. Chitosan has shown potential to induce reactions in plant pathogens. An “in vitro” assay determines the action of chitosan and evaluates the optimal concentration to act against (Sclerotium rolfsii). The anti-microbial activity of chitosan and the bio-protector produced by the inter-active bacteria...

Author(s): Mayane B. de Souza, Newton P. Stamford, Silva E. V Nova, Lucia R. R. Berger, Santos Carolina E. Rosalia e Silva , Antonio F. Costa and André P. F. Ferraz

May 2018

Use of biochar for increased crop yields and reduced climate change impacts from agricultural ecosystems: “Chinese farmers’ perception and adoption strategy”

Biochar is a carbon-rich product from pyrolysis of biomass at relatively low temperatures in a closed system with limited oxygen. The product has been shown to have economic and environmental benefits, ranging from improved soil moisture retention for carbon sequestration, reduced pollution and dependence on inorganic fertilizers. Additionally, biochar can be produced on-farm by small scale farmers using locally made...

Author(s): Grace Wanjiru Kibue

May 2018

Determinants of mobile phones usage in sweet potato vine business in Gulu district northern Uganda

Seed systems that provide farmers with planting materials may be divided into formal and informal systems. For the sweet potato sector, the informal seed system is the main provider of planting materials to small and medium sized farmers in developing countries. This informal system provides planting materials to smallholder farmers at the right time, place and quantity. However, for it to be effective there must be an...

Author(s): Ronald Obong, Basil Mugonola and David Paul Phillips  

May 2018

Effects of biochar and gypsum soil amendments on groundnut (Arachis hypogaea L.) dry matter yield and selected soil properties under water stress

The effects of amending soil with gypsum and biochar on groundnut chlorophyll concentration, water use efficiency (WUE), biomass yield and selected soil properties were investigated under water stress. Gypsum (CaSO4.2H2O) was applied at 0 and 200 kg/ha, groundnut shell biochar at 1, 2 and 4% w/w of soil, and water at 100, 70 and 40% of daily plant water requirement (PWR) as main, sub and sub-sub plots, respectively, in...

Author(s): Munsanda Ngulube, Alice Mutiti Mweetwa, Elijah Phiri, Samuel Christopher Muriu Njoroge, Hendrix Chalwe, Victor Shitumbanuma and Rick Lynn Brandenburg

May 2018

Use of organic alternatives in the production system of habanero pepper (Capsicum chinense Jacq.) under greenhouse conditions

Cultivation of pepper has become the fastest growing practice in recent years, and specifically, habanero pepper which has surpassed its traditional area of ​​cultivation, and has expanded to other areas, conquering the markets of the rest of the country and the world. In the present study, 3 doses of solarized manure (40, 60 and 80 t ha-¹) and an absolute control were evaluated for the production of habanero...

Author(s): Pedro Vázquez Vázquez and Merle C. Navarro Cortez

May 2018

Comparative microscopic observations of arbuscular mycorrhizal fungi after colonization of five Tunisian olive cultivars

Arbuscular Mycorrhizal Fungi (AMFs) are known as a symbiotic microorganism which ameliorates growth and tolerance against stressful conditions of their host plants. It is characterized by morphological, physiological and biochemical events that are controlled by the interaction of both plants and fungus. The aim of this research was to evaluate the intensity (M%) and the Arbuscules abundance (A%) of mycorrhizal...

Author(s): Naouraz M’barki, Meriem Tekaya, Hechmi Chehab, Feten Aissaoui, Hanen Sfina, Zoubaier Mahjoub, Faouzi Attia, Dalenda Boujnah and Beligh Mechri,

May 2018

Maize response to doubled-up legumes, compost manure and inorganic fertiliser on smallholder farms in Ntcheu district of Malawi

A study was carried out in 2011/2012 and 2012/2013 growing seasons in Kandeu and Manjawira Extension Planning Areas (EPAs) in Ntcheu district, Central Malawi, to determine maize response to crop residue incorporation from legume cropping systems and compost manure. In 2011/2012 growing season, maize with or without compost manure, sole and intercropped legumes (pigeon pea, groundnut, soyabean and cowpea) were...

Author(s): Joseph Blackwell Kalasa, Wezi Grace Mhango, George Yobe Kanyama-Phiri and Max Williams Lowole

May 2018

Doses of cattle manure and levels of irrigation with wastewater in the cultivation of peppers

In areas with water scarcity, recycled water and cow manure in organic substrate makes the cultivation of peppers possible, supplying water and nutrition to pepper. The present research was conducted to evaluate the effect of cattle manure doses and levels of irrigation using wastewater on pepper cultivation (Capsicum frutescens L.). The treatments include: three replacement levels of wastewater treated, based on the...

Author(s): V. F. Silva, E. C. S. Nascimento, V. L. A. de Lima, C. V. C. Bezerra and L. O. Andrade  

May 2018

Nutritional and fermentative quality of sugarcane (Saccharum officinarum) top ensiled with or without urea and molasses

This study was conducted to evaluate the effect of urea and molasses addition on physical properties, pH, temperature, dry matter loss and chemical composition of sugarcane top (SCT) silage. Treatments were arranged as 2*4 factorial, with two SCT types (green and burnt) and four silage treatment types (without additive, 4% molasses, 1% urea and 1% urea + 4% molasses) in a completely randomized design. Forages were...

Author(s): Getahun Kebede, Ashenafi Mengistu, Getnet Assefa and Getachew Animut  

Page 8 of 124, showing 50 records out of 6183 total, starting on record 351, ending on 400