African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6253

AJAR Articles

January 2019

Levels of some selected metals (Fe, Cu and Zn) in selected vegetables and soil around eastern industry zone, central Ethiopia

The purpose of this study was to determine the concentration of selected metals (Fe, Zn and Cu) in vegetables and the soil contaminating levels due to irrigation, using Flame Atomic Absorption Spectrophotometer (FAAS). The wet digestion and sequential fractionation extraction procedures were employed to solubilize the metals from the collected samples. The results obtained from this study showed overall concentration of...

Author(s): Dagne Bekele Bahiru and Endale Teju  

January 2019

Levels of some toxic heavy metals (Cr, Cd and Pb) in selected vegetables and soil around eastern industry zone, central Ethiopia

The purpose of this study was to determine the concentration of heavy metals (Cr, Cd and Pb) in vegetables and the soil contaminating levels as a result of irrigation using Flame Atomic Absorption Spectrophotometer (FAAS). The wet digestion and sequential fractionation extraction procedures were employed to solubilize the metals from the collected samples. The results obtained from this study showed overall...

Author(s): Dagne Bekele Bahiru, Endale Teju, Tesfahun Kebede and Negash Demissie  

January 2019

Land Use Land Cover Change Trend and Its Drivers in Somodo Watershed South Western, Ethiopia

Land use land cover (LULC) dynamics are a widespread, accelerating, and significant process driven by human actions. LULC changes analysis is one of the most precise techniques to understand how land was used in the past, what types of changes are to be expected in the future, as well as the forces and processes behind the changes. This study was carried out to evaluate the historical and future trends as well as...

Author(s): Fasika Alemayehu, Motuma Tolera and Gizaw Tesfaye  

January 2019

Review on bio-intensive management of African bollworm, Helicoverpa armigera (Hub.): Botanicals and semiochemicals perspectives

African bollworm, Helicoverpa armigera (Hübner), is a serious pest of cereals, sorghum, cotton, pepper, maize, sunflower, flax and niger. To control this insect pest, doses of insecticides have been used. The use of indiscriminate synthetic insecticides causes adverse effect like environmental pollution, human and animal health hazards, and development of pesticide resistance. To alleviate these bottleneck...

Author(s): Tariku Tesfaye Edosa  

January 2019

Degradation assessment of wetlands under different uses: implications on soil quality and productivity

The assessment of degradation status of wetland soils under five different land use types (LUTs) in Ogun state, Nigeria were studied. The laboratory study was conducted to determine the physical, chemical and biological properties of these wetlands and the results obtained were compared with the food and agriculture organization (FAO) standard indicators and criteria for land degradation assessment. The textural...

Author(s): O.A. Osinuga and C.O. Oyegoke  

January 2019

Natural occurrence of Diadiplosis megalamellae (Barnes) in mealybugs on roses in Kenya

Over the last decade there has been an increasing adoption of Integrated Pest Management on rose farms in Kenya. As a consequence, there has been a rise in secondary pests on rose plants, including in particular the citrus mealybug Planococcus citri (Risso). On cut flowerrose farms in Kenya, the presence of the predatory midge Diadiplosis megalamellae (Barnes) (Diptera: Cecidomyiidae) was observed. Therefore, a survey...

Author(s): Anouk H. J. Hoogendoorn, Ruth Murunde, Evans Otieno and Henry Wainwright  

January 2019

Banana field resistance to insect-vector transmission of bacterial wilt caused by Xanthomonas campestris p.v musacearum

Banana, a major staple in East and Central Africa is constrained by banana Xanthomonas wilt (BXW) caused by Xanthomonas campestris pv. musacearum (Xcm). Xcm-infected plants are rapidly destroyed leading to 100% yield loss. Cultural controls are effective but laborious attracting laxity among farmers. This has led to epidemic resurgence in areas where BXW had been contained hence spread to new regions. Reliable control...

Author(s): B. Mudonyi, L. Vanhaelewyn, G. Tusiime, F. Ssekiwoko, J.Kubiriba, W. K. Tushemereirwe and C. M. Changa        

January 2019

Evaluation of sugarcane hybrid clones for cane and sugar yield in Nigeria

Field experiment was conducted in year 2015/2016 at the National Cereals Research Institute Badeggi, Niger State (sugarcane research field) to evaluate the performance of sixteen sugarcane genotypes. The clones were planted in a Randomized Complete Block Design (RCBD) and replicated three times. Analysis of variance showed significant differentiation among studied genotypes. The results revealed that among the evaluated...

Author(s): Mohammed A. K., Ishaq M. N., Gana A. K. and Agboire S.  

January 2019

Status and distribution of soil available micronutrients along a hillslope at Ekpri Ibami in Akamkpa Local Government Area of Cross River State, Nigeria

A field study of the status and distribution of available soil micronutrients along a hillslope of Ekpri Ibami was carried out on a 50 ha land. The aim of the study is to evaluate the micronutrient status and distribution and their relationship with some selected soil properties. A total of 16 soil samples were collected from each pedogenic horizons of four profile pits dug along a hillslope classified as upper slope,...

Author(s): John Kingsley, Ayito Esther O., A. U. Akpan-Idiok and O. D. Effiom  

December 2018

A glance at Mozambican dairy research

The Mozambican dairy industry landscape is not well known because the research about it presents numerous inconsistencies which are possibly due to miscommunication between scholars, entrepreneurs, the government and other actors, besides major events such as the civil war and policy changes and overall lack of coordination. This study aimed to catalog and relates the major studies and findings in Mozambican dairy...

Author(s): Edgar Cambaza,  

December 2018

Malt barley commercialization through contract farming scheme: A systematic review of experiences and prospects in Ethiopia

In Ethiopia, smallholder commercialization and integration into the market has been one of the policy directions. Though Ethiopia managed to raise economic growth recently, there is languished pace of agricultural commercialization. This study investigates malt barley commercialization process through contract farming scheme, and its experience, effect and prospects in Ethiopia. A systematic review system was employed....

Author(s): Addisu Bezabeh Ali  

December 2018

Evaluation of bread wheat (Triticum aestivum L.) genotypes for resistance against stem rust (Puccinia graminis f. sp. tritici) diseases at seedling and adult stages

Bread wheat is the most important food crops among cereals cultivated in the world and consume in various diets. However, the production of bread wheat majorly affected by fungal diseases especially rust diseases. Of the rust diseases, stem rust is the most destructive due to the frequent emerging of new races of the pathogen. The field experiment was conducted at Kulumsa Agricultural Research Debre Zeyit sub-center...

Author(s): Desalegn Negasa Soresa  

December 2018

Variability of morpho-metric traits and oleaginous biofuel potential of Jatropha curcas L. (Euphorbiaceae) seeds in Burkina Faso

In the recent decades, Jatropha curcas has received attention as a potential source of bio fuel production in many West African countries. To detect performant accessions for improvement and breeding programmes, the degree of variability of morphological traits and oil content of seeds in a large range of accessions were assessed in this study. The morphological traits and oil content of seed of 40 accessions of J....

Author(s): Hemayoro Sama, Bassiaka Ouattara, Adama Hilou, Abdoul-Nassiré Derra, Bathélémy Yélémou and Victor Hien  

December 2018

Grass production Tifton 85 and nutrient extraction with swine wastewater doses

Swine wastewater (SW) is considered as a source of nutrients for agriculture. The quantities and frequencies applied may vary according to the soil class, the nature and composition of the waste, the climatic conditions and the cultivated plant species. Therefore, this study aimed to evaluate the effects of application of five Swine wastewater doses (0, 500, 1000, 2000 and 2500 m³ ha-1) in the production of...

Author(s): Vinícius de Oliveira Rezende, Luís César Dias Drumond, André Mundstock Xavier de Carvalho, Regina Maria Quintão Lana and Marcos Vieira de Faria  

December 2018

Evaluation of improved chickpea varieties for resistance to Fusarium wilt (Fusarium oxysporum) under field condition in sick plot

Chickpea Fusarium wilt caused by Fusarium oxysporum f. sp ciceris is a devastating disease of chickpea in Ethiopia. This study was done to evaluate the resistance of the improved chickpea varieties to fusarium wilt disease. About nine kabuli and ten desi types including one JG-62 differential were evaluated in RCBD Design with three replications in Debre Zeit sick plot in 2017. Results of the study showed that there are...

Author(s): Asrat Zewdie and Tolesa Bedasa  

December 2018

Host preference and performance of cabbage aphid Brevicoryne brassicae L. (Homoptera: Aphididae) on four different brassica species

Host preference and performance of cabbage aphid Brevicoryne brassicae were studied on seven brassica varieties under Greenhouse. Nymphs, apterous and alate aphids were significantly different on day three and day 15 among tested varieties. Higher total number of aphids per plant was recorded on Brassica carinata and lower on Brassica oleracea. Alates of B. brassicae preferred more to feed and reproduce on B. carinata...

Author(s): Amlsha Mezgebe, Ferdu Azerefegne and Yibrah Beyene  

December 2018

Gender differences in the use of plant health information services: A case of plant clinics under Plantwise Program in Kenya

A total of 8,699 female and 12,928 male farmers visited plant clinics in Kenya between 2012 and 2016. The lower clinic attendance by women farmers indicates they may lack information on plant health problems. This study aimed to understand the environment plant clinics operate in, identify the reasons for low clinic attendance by women, and possible strategies to reach more female farmers. Stratified random sampling was...

Author(s): Musebe, R. O., Mugambi, I., Williams, F., Mulaa, M., Nambiro, E. and Chege, F.  

December 2018

Proximate, physical and chemical composition of leaves and seeds of Moringa (Moringa oleifera) from Central Malawi: A potential for increasing animal food supply in the 21st century

The nutritive composition of Moringa (Moringa oleifera Lam) leaves and seeds were evaluated for their possible inclusion in livestock feed formulation because of the limited availability of conventional protein concentrates like soybean (Glycine max) seeds. Moringa seeds contained 50.70 g kernels and 19.03 g hulls per 100 seeds representing 72.71 and 27.29% as a fraction of the whole seed, respectively. The 100 seeds...

Author(s): Lesten Eliez Chisomo Chatepa and Emmanuel Chidiwa Mbewe  

December 2018

Phytochemicals (phenolic acids, flavonoids, and alkaloids) contribution to the feeding value of mulberry (Morus spp.) for rabbits

The feeding value of mulberry leaves for rabbits was quantitatively evaluated based on a single-factor design with five levels in diets (0, 5, 10, 15 and 20%). Results showed that rabbits given mulberry at 20 and 15% had a relatively lower body weight gain, higher feed conversion ratio, and lower meat ether extract contents than that in the 0% group (P < 0.05). Increased activities of antioxidant enzymes and reduced...

Author(s): Q. R. Hou, W. G. Zhao, T. Chen, and L. Li,  

December 2018

The efficacy of jatropha (Jatropha curcas L.) seed cake as an organic fertilizer

Studies to evaluate the efficacy of Jatropha curcas L. (Jatropha) seed cake as an organic fertilizer were carried out at Bunda College of Agriculture during the 2010/2011 growing season using an on-station experiment. The major objective was to evaluate the efficacy of Jatropha seed cake as an organic fertiliser. The field experiment was laid in a 3 × 3 design with 3 levels of Jatropha (0, 92 and 184 kg N/ha...

Author(s): Emmanuel C. Mbewe, Patson C. Nalivata, Wlikson Makumba and Venon H. Kabambe  

December 2018

Physiologically meaningful moisture content determination for Brazil nut (Bertholletia excelsa Bonpl.) seeds

Brazil nut (Bertholletia excelsa Bonpl.; Lecythidaceae) seeds are large, and the oily embryo (edible part) is covered by a thick, woody seed coat. Difficulties in seed storage may be due to desiccation sensitivity of the seeds, and prior variable results may be related to procedures for seed moisture content (MC) determination. This study first compared 3 methods of preparation of whole seeds, prior to MC determination:...

Author(s): Diana Soares Bentes, Geângelo Petene Calvi and Isolde Dorothea Kossmann Ferraz,  

December 2018

A research on the determination of productivity levels of tomato grown areas

The research was conducted in tomato-growing lands of Lâpseki, Ezine, Bayramiç and Central districts of Çanakkale province, Turkey. The aim of the study is to check the suitability of the field for tomato farming and to produce a solution if there is a problem. Disturbed soil samples were taken from 114 points with certain coordinates, at a depth of 0 to 30 cm, and analyses were performed. In the...

Author(s): Tuncay Demirer  

December 2018

Factors influencing commercialization of sweet potato in Mosocho Subcounty, Kenya

Sweet potato is a traditional crop grown in most parts of Kenya. In Nyanza Region, Kisii County and Mosocho sub-county in particular are major producers of the crop. However, only less than half of the produce is marketed and the growers are largely poverty stricken. This paper investigates why so little of the produce is marketed. Using primary data collected from a survey of 108 farmers in Mosocho, the study estimates...

Author(s): Winnie Kemunto Mageto and Kamau Gathiaka  

December 2018

Quality of clonal plantlets of Coffea canephora Pierre ex A. Froehner produced using coffee husk in the substrate

Coffee husk is a residue produced during the fruit processing and it is an excellent source of organic matter. It is an interesting alternative that can be used in the formation of the substrate to plantlet production, but the proportion to be recommended is still unknown. In this context, this experiment was conducted with the objective to study the growth, quality and gas exchange rates of clonal plantlets of Conilon...

Author(s): Abraão Carlos Verdin Filho, Wagner Nunes Rodrigues, Tafarel Victor Colodetti, Aldo Luís Mauri, Bruno Fardim Christo, Romário Gava Ferrão, Marcelo Antonio Tomaz, Marcone Comério, Saul de Andrade Júnior, Sheila Cristina Prucoli Posse, Lima Deleon Martins and Sebastião Vinícius Batista Brinate  

December 2018

Farmer-based dynamics in tissue culture banana technology adoption: a socio-economic perspective among small holder farmers in Uganda

The rates at which tissue-culture banana technology at smallholder farmer level in Uganda are adopted have reduced since the late 1990s. The study assessed the socio-economic factors influencing adoption of this technology by smallholder farmers. A survey on 280 smallholder farmers sampled from Western Uganda was conducted and responses were subjected to principal component analyses. There are evidences of very low...

Author(s): Murongo M. Flarian, , Ayuke O. Frederick,  Mwine. T. Julius, and Wangai K. John  

December 2018

Fertilizer source influence on antioxidant activity of lettuce

Consumers are increasingly aware and concerned about their health and therefore demanding for more healthy and nutritious food. Thus, the demand for organic foods has increased recently. Thus the aim of this study was to compare the antioxidant activity and total phenolic content of lettuce produced in organic and conventional systems. The antioxidant activity of ethanol extracts was determined by the DPPH and FRAP...

Author(s): Camila Karina Costa e Silva, Kelly Barbosa da Silva, Paulo Rogério Barbosa de Miranda, Tâmara Claudia de Araújo Gomes, Jessé Marques da Silva Júnior, Mayara Andrade Souza, Aldenir Feitosa dos Santos and João Gomes da Costa,  

December 2018

Identification of sequence-characterized amplified regions (SCARs) markers linking resistance to powdery mildew in chilli pepper (Capsicum annuum L.)

Powdery mildew disease in chilli pepper caused by Leveillula taurica has been affecting chilli pepper grown in greenhouse and open fields. Inheritance of powdery mildew disease resistance is complex and least understood. In the present study, we identified SCAR markers using F2 mapping populations developed from a cross between a resistant parental line ‘Odisha Local' and a parental line susceptible to powdery...

Author(s): Rajesh R. Wankhade and Madhukar S. Wadikar  

December 2018

Genetic variability in agronomic traits and associations in sorghum [(Sorghum bicolor (L.) Moench)] genotypes at intermediate agro-ecology sorghum growing areas of Ethiopia

The present study consists of 14 sorghum genotypes evaluated at Bako, Jimma and Mechara research centers to study genetic variability and interrelationships of traits with grain yield. The experiment was conducted by using randomized complete block design (RCBD) with three replications during 2014 and 2015 main rainy season. Data on important agronomic traits were collected. The combined analysis of variance (ANOVA)...

Author(s): Adane Gebreyohannes, Taye Tadesse, Amare Seyoum, Habte Nida, Amare Nega, Tsegau Senbetay and Chalachew Endalemaw

December 2018

Genetic variability of some yield and yield related traits in recombinant inbred lines of tef [Eragrostis tef (Zucc.) Trotter] at Laelay Maichew District, Northern Ethiopia

Tef [Eragrostis tef (Zucc.) Trotter] is a tetraploid almanac plant which belongs to the grass family, Poaceae and plays a vital role in the Ethiopian national food. In this study, thirty-four F2 derived F7 recombinant tef inbred lines, two standard (Kora and Quncho) and one local checks were field evaluated for genetic variability in grain yield and yield related characters at Axum Agricultural Research Center in 2014...

Author(s): Haftamu Hailekiros  

December 2018

Economic and operational analysis of tomato mechanized harvesting systems for industrial processing

The determination of the cost of agricultural production is an important tool for controlling and managing productive activities and generating information to support decision-making. The objective of this work was to make technical and economic evaluations of three mechanized tomato harvesting systems for industrial processing through the study of times, movements and the determination of operational costs. The...

Author(s): Tulio de Almeida Machado, Haroldo Carlos Ferandes, Fábio Lucio Santos, Nerílson Terra Santos and Clarice Aparecida Megguer  

December 2018

Priming of Urochloa brizantha cv. Xaraés seeds

Priming is one of the several physiological methods used to increase the performance of seeds. To evaluate the effects of priming, seeds of Urochloa brizantha cv. Xaraés were primed under different osmotic potentials (ys = 0.0; -0.5; -1.0 and -1.5 MPa) and temperatures (15 and 25°C) for 24, 48, 96 and 144 h. The germination percentage and germination speed index were evaluated, in a completely randomized...

Author(s): Silvia Rahe Pereira, Ana Eliza da Silva Lima, Adriana Paula D’Agostini Contreiras-Rodrigues, Daiane Rodrigues de Oliveira and Valdemir Antônio Laura,  

November 2018

Structural and productive characteristics of Cowpea (Vigna ungiculata) under different water availabilities

The cowpea has stood out on the national scene, opening up new perspectives and applications of a more suitable management to ensure quality product. Therefore, it is important to know the responsiveness to the levels of deficit and excess water in the soil. Thus, the aim of the present study was to evaluate the initial development of cowpea plants subjected to different soil water availabilities. The experiment was...

Author(s): Guimarães S. L., Bonfim-Silva E. M., Moreira J. C. F., Silva S. L. S., Bosa C. K., Silva T. J. A. and Koetz M.  

November 2018

Constraints to private seed sector development in Ethiopia: A case study

The purpose of this assessment was to identify, analyse and document major policies, laws, regulations, administrative practices, governance and institutional setups that constrained private seed sector investment in Ethiopia and identify evidence based alternative solutions to improve the supply of certified seed to small holder farmers and livelihoods in the country. The study was conducted in 2017 in Oromia, Amhara,...

Author(s): Tekeste Kifle and Abebe Atilaw  

November 2018

Introduction of the Sub1 gene into the Russian rice varieties using the polymerase chain reaction (PCR) methods

Selection done using molecular markers has spread to all types of agricultural plants and animals. Marker assisted selection (MAS) is safe for ecology and food products consumed. The purpose of the study is to develop Sub1A gene (which determines tolerance to prolonged flooding) in the Russian rice varieties using DNA-markers and Polymerase chain reaction (PCR) analysis. A large volume of pre-breeding rice material...

Author(s): Elena V. Dubina, Andrey V. Alabushev, Pavel I. Kostylev, Yuliya A. Makukha, Margarita G. Ruban, Ivan V. Balyasnyi, Le H. Ham, Dinh X. Tu and Le H. Linh  

November 2018

The use of plant extracts in anthracnose control in species of Helconia (Heliconia psittacorum cv. Golden Torch and Heliconia rostrata)

The objective of the present study was to assess the anti-fungal activity of medicinal plant extracts on inhibition of Colletotrichum gloesporioides mycelial growth, sporulation and germination and on anthracnose control in Heliconia psitacorum cv. Golden Torch and Heliconia rostrata. Extracts of garlic, lemon grass, cinnamon, lemon balm, eucalyptus, ginger, mint, bitter melon and black pepper were used. The, mycelial...

Author(s): Joicilene Rodrigues Gusmão, Antônia Alice Costa Rodrigues, Luiz Gustavo de Lima Melo, Erlen Keila Candido e Silva, Anna Christina Sanazário de Oliveira, Diogo Herison Silva Sardinha and Heder Braun

November 2018

Pre-inoculation of soybean seeds: Effects on survival of Bradyrhizobium elkanii, nodulation and crop yield

Pre-inoculation of soybean seeds with Bradyrhizobium spp. associated with polymers could be an alternative to the conventional inoculation performed at the day of sowing.  The objectives of this study were i) to determine whether the HiCoat® technology (peat inoculant + liquid inoculant + polymer) allows the survival of B. elkanii after storage of the inoculated seeds, and ii) to evaluate whether the...

Author(s): Itacir Eloi Sandini, Rafael Brugnera Belani, Margarete Kimie Falbo, Fabiano Pacentchuk and Jaqueline Huzar-Novakowiski  

November 2018

Comparative assessment of the fumigant action of volatile oils from three garlic cultivars on faba bean beetle Bruchidius incarnatus (Boh.)

The study aims to assess the insecticidal activity, oviposition inhibitory and ovicidal effects of volatile oils from different garlic cultivars on faba bean beetle, Bruchidius incarnatus (Boh.) (Chrysomelidae: Bruchinae). The oils were tested at various concentrations and time intervals.  Results showed that all volatile oils caused significant mortality to the test insects. The effects were time and dose-related....

Author(s): Azhari Omer Abdelbagi, Mubarak Youssof El-sonoussy Eissa, Abd Elaziz Sulieman Ahmed Ishag and Ahmed Mohammed Ali Hammad  

November 2018

Screening of allelopathic activity of common weed species occurring in agricultural fields

The investigation of allelopathic effects of different plant species is important to prevent serious crop losses that would arise. The usage of such materials as mulch, cover crops or residues will be useful to implement in integrated weed management strategies of agricultural fields. Therefore, this study was conducted to screen the allelopathic effect of selected plant species using seedlings growth of lettuce...

Author(s): Ewon Kaliyadasa and Sadeeka Layomi Jayasinghe  

November 2018

Multi-criteria decision system for greenhouse site selection ın Lower Euphrates Basin using geographic ınformation systems (GIS)

Greenhouses have become quite a sought-after agricultural sector due to government support and private company preferences in recent years in Turkey. Greenhouse activities are only limited to Mediterranean and Aegean regions of Turkey and it is not much preferred in the inner regions. Due to these regions being preferred by people, mainly as tourism and settlement areas, it has become essential to find new areas for...

Author(s): Burak Saltuk and Ozan Artun  

November 2018

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...

Author(s): Clarisse Pulchérie Kondombo, Issa Karambiri, Adama Kaboré, Schémaéza Bonzi and Irénée Somda  

November 2018

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...

Author(s): Mahir Murat Cengiz  

November 2018

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...

Author(s): Karuku G. N., Onwonga R. N., Chepkemoi J. and Kathumo V. M.  

November 2018

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...

Author(s): Jefferson Lucas de Araújo Silva, Rafaela Souza Alves Fonseca, Anderson Rodrigues Rietjens, Natanael Marcos Lemes and Milton Luiz da Paz Lima  

November 2018

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...

Author(s): Mzuyanda Christian and Ajuruchukwu Obi  

November 2018

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...

Author(s): Mohammed Abate  

November 2018

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...

Author(s): Phuc Thi Do, Yen Hai Hoang, Mai Quynh Le, Hanh Thi Tang and Duong Huy Nguyen,  

November 2018

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...

Author(s): Nogaye Niang, Sandrine Demanèche, Ibrahima Ndoye, Elisabeth Navarro, and Saliou Fall,  

November 2018

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%...

Author(s): Godfrey Wokorach, Hilary Edema and Richard Echodu,  

November 2018

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...

Author(s): Francilene de Lima Tartaglia, Evandro Zanini Righi, Leidiana Rocha, Ivan Carlos Maldaner, Elizandro Salbego and Arno Bernardo Heldwein  

November 2018

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...

Author(s): George O. ODUGBENRO, Yankun SUN and Zhihua LIU  

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