African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6728

AJAR Articles

Application of multivariate probit on determinants of sesame farmers market outlet choices in Gimbi District, Ethiopia

September 2017

Sesame (Sesamum indicum L.) is an important crop produced in Ethiopia for oilseed production and it was ranked first in total production from oil crops in 2013. The study is based on a survey of 166 farmers covering six kebeles in Gimbi district, Ethiopia with the objectives of identifying factors affecting choice of market outlet of sesame producers in the study area. Data were collected from both primary and secondary...

Author(s): Fikiru Temesgen, Bezabih Emana, Fikadu Mitiku and Efa Gobana

Populational dynamics of fruit flies (Diptera: Tephritidae) in guava orchards in the Northwest region of Espírito Santo, Brazil

September 2017

The diversity of fruit flies (Diptera: Tephritidae) in commercial guava orchards in the Northwest region of Espírito Santo, Brazil was recorded. Also, their population dynamics, correlation with climatic factors and their parasitoids were recorded. This study was carried out in three commercial guava orchards of the cultivar Paluma, located in the municipality of São Roque do Canaã, Central region...

Author(s): Fernando Zanotti Madalon, Lusinério Prezotti, Caroline Merlo Meneghelli, José Romário de Carvalho, Victor Dias Pirovani, Rodrigo Zanotti Madalon, Khétrin Silva Maciel, Geovane Schulz Lauvers, Jorge Montoanelli Correa and José Guilherme Bergamim Mellere 

Effect of organic mulches and land preparation methods on soil moisture and sesame productivity

September 2017

Sesame (Sesamum indicum L.) is one of the exportable commodities in Ethiopia, though its productivity is threatened by moisture stress. This research aims to study effect of organic mulches and land preparation methods on sesame productivity and in-situ moisture conservation. The experiment was carried out in Humera, Western Tigray during 2015/16 growing season. The experimental design was factorial randomized complete...

Author(s): Goitom Teame

Effects of grass (Hyperenia spp.) mulching rate on development and yield of okra (Abelmoschus esculentus) under drip irrigation

September 2017

Mulching minimizes water evaporation from cropped surfaces and increases efficiency of water utilization by the crops. A study was conducted between January to March and August to November 2015 in Zimbabwe, to establish the effect of different densities of thatch grass (Hyperrhenia filipendula) mulch on growth and yield of okra (Abelmoschus esculentus) under drip irrigation. The experiment was laid in a Randomized...

Author(s): Nyajeka, M., Svotwa, E. and Katsaruware, D. R.

Genotype by environment interaction and yield stability of early maturing maize single cross hybrids at three locations in Southern Ghana

September 2017

A grain yield trial was conducted in three locations in Southern Ghana. The objective of the trial was to determine the effects of genotype by environment interaction on 90 early maturing hybrid maize. The trial was conducted in Fumesua, Ejura and Kpeve; representing the forest, forest-Savanna transition and coastal-Savanna transition zones respectively. The analysis of variance for grain yield demonstrated that...

Author(s): Ndebeh J., Akromah R. and Obeng-Antwi K.

Stability analysis for yield and yield contributing characters in hybrid maize (Zea mays L.)

September 2017

Twenty one hybrids along with two check varieties of maize were assessed for genotype environment interaction (GEI) and stability for selection of the best hybrid maize in three different Agro-Ecological Zones (AEZ) of Bangladesh during rabi season 2014/2015. The experiment was laid out in Randomized Complete Block Design with 3 replications. The additive main effects and multiplicative interaction (AMMI) model was used...

Author(s): M. Q. I. Matin, Md. Golam Rasul, A. K. M. Aminul Islam, M. A. Khaleque Mian, J. U. Ahmed and M. Amiruzzaman

Screening of guar accessions [Cyamopsis tetragonoloba (L.) Taub.] for higher yield potential under irrigated conditions

September 2017

Twelve quantitative traits such as germination percentage, days to 50% flowering, plant height, branches plant-1, clusters plant-1, pod length, days to maturity, 1000-seed weight and grain yield plot-1 were studied to determinate ample variation and association between 100 Guar [Cyamopsis tetragonoloba (L.) Taub.] genotypes to screen out the best performing lines. Variance study of quantitative traits in various...

Author(s): Muhammad Azeem Ur Rahman Khalid, Lal Hussain Akhtar, Rashid Minhas, Shah Jahan Bukhari, Muhammad Zubair and Muhammad Ahsan Iqbal

Coffee production through wet process: Ripeness and quality

September 2017

Coffee has the characteristic of ripening unevenly. Production through wet process favors ripe berries. The fraction of green and green-cane fruit on the coffee tree is normally treated as an inferior quality product. The objective of this work was to evaluate the physical and sensorial aspects of the quality of green-cane and cherry coffee produced through wet process. Batches of coffee were separated according to...

Author(s): Leandro Pin Dalvi, Ney Sussumu Sakiyama, Gilberto Santos Andrade, Paulo Roberto Cecon, Fernando Antonio Pereira da Silva and Lidiane dos Santos Gomes Oliveira

Differential reaction of cowpea genotypes to brown blotch disease (Colletotrichum capsici) in Burkina Faso

September 2017

Thirty six Colletotrichum capsici (L.) single spore isolates associated with brown blotch disease in cowpea were collected from three agro-ecological zones of Burkina Faso from October to November 2014. To identify the most virulent strains, cowpea genotypes KVx61-1, KVx396-4-5-2-D and Moussa Local was inoculated with each isolate. The results showed that isolates 096-SA-2, 071-FA-6 and 079-PM-2 were the most virulent,...

Author(s): Gilles I. Thio,, Elisabeth P. Zida, Fidèle B. Néya, Joseph T.B. Batieno, James B. Néya, Mahamadou Sawadogo and Paco Sérémé

Genetic diversity of rice from Iran region assessed by simple sequence repeat (SSR) markers

September 2017

Simple sequence repeat (SSR) markers (36 microsatellite pairs) were used to assess genetic diversity among sixteen rice (Oriza sativa L.) cultivars from Iran, four from Uzbekistan, and one from Afghanistan, and to compare this diversity with that of three control cultivars including Nipponbare, Jasmine 85 and Basmati 370. Among the 36 microsatellite pairs, 31 produced polymorphisms ranging from 1 to 7 alleles (average =...

Author(s): Mehran Vazirzanjani, Shinya Kawai, Hossein Mardani Korrani, Asma Ossivand and Taiichiro Ookawa

Effects of cattle manure over the content, extraction and exportation of nutrients in snap bean

September 2017

The use of organic fertilizers is essential for the sustainable production of vegetables. In this context, the aim of this study was to evaluate the effect of different doses of cattle manure on plant nutrition, yield, extraction and exportation of nutrients in the snap bean cultivar “macarrão trepador”. The experiment was held in EPAMIG-southeast, in Oratório-MG. The randomized block design...

Author(s): Ivan de Paiva Barbosa, Maria Aparecida Nogueira Sediyama, Antônio Carlos da Silva Júnior, Sanzio Mollica Vidigal, Iza Paula de Carvalho Lopes and Izabel Cristina dos Santos

Phosphorus fixation and its relationship with physicochemical properties of soils on the Eastern flank of Mount Cameroon

September 2017

The Eastern flank of Mount Cameroon is made up of human settlement and agricultural activities. Determination of phosphorus (P) fixation characteristics of soils around this region is important for a clean environment and economic fertilizer application. The objectives of this study were to evaluate P-fixation characteristics of soils within the region and identify factors contributing to P-fixation. Composite surface...

Author(s): Kenneth Mbene, Aaron SuhTening, Cheo Emmanuel Suh, Norbert Nkafu Fomenky and Vivian Bih Che

Husbandry practices and phenotypic characteristics of indigenous goat populations in Ethiopia

September 2017

The present study was conducted with the objective to characterize the husbandry practices and phenotypic characteristics of mature Bati, Borana and Short-eared Somali goats kept under traditional management systems so that the information generated can be used in designing breeding programs. The study was covered five districts in four administrative zones of Ethiopia representing Bati (in Oromia Zone) and Kalu (in...

Author(s): H. Gatew, H. Hassen, K. Kebede, A. Haile, R. N. B. Lobo, A.Yetayew and B. Rischkowsky

Effect of integrated agronomic management practices on yield and yield components of groundnut in Abergelle, Tigray, Ethiopia

August 2017

Poor soil fertility, moisture stress, and shortage of early maturing varieties are the major groundnut production constraints in the study area. This study was executed to evaluate the effect of Diammonium phosphate (DAP) and gypsum application, tied ridging and supplementary irrigation on groundnut production. The experiment was laid out in a Randomized Complete Block Design with three replications in two sites....

Author(s): Gebreselassie Redae, Dereje Assefa and Solomon Habtu

Effect of planting density on growth, yield and yield attributes of rice (Oryza sativa L.)

August 2017

The study was conducted during 2012 from May to August cropping year at paddy field of Tsukuba International Training Center (TBIC), Japan. The main purpose of the experiment was to investigate the effect of planting density on the growth, yield and yield attributes of rice. The experiment comprised of five planting densities (16.7, 22.2, 25, 33.3 and 50 hills m-2). It was arranged in Randomized Complete Block Design...

Author(s): Berhanu Arbissie Asmamaw

Development of a low cost and energy efficient tobacco curing barn in Zimbabwe

August 2017

Most of the tobacco in Zimbabwe are grown by small scale tobacco growers who rely on wood-fuelled inefficient conventional barns with fuel wood requirements as high as 14 kg wood to one kilogram of cured tobacco leaf. This level of fuel wood use is not sustainable as it results in massive tobacco-curing related deforestation. The main objective of this study was therefore to design an energy efficient barn (Kutsaga...

Author(s): W. Munanga, F. T. Mugabe, C. Kufazvinei and S. Dimbi

Effect of cutting time on agronomic and nutritional characteristics of nine commercial cultivars of Brachiaria grass compared with Napier grass during establishment under semi-arid conditions in Rwanda

August 2017

A study was conducted to identify the most productive cultivars and their cutting management to optimize nutrient productivity in semi-arid areas of Rwanda. Four cultivars of Brachiaria brizantha (Piatá, MG4, Marandú and Xaraes), two cultivars of Brachiaria humidicola (Llanero and Humidicola), two cultivars of Brachiaria hybrid (Mulato and Mulato II) and one cultivar of Brachiaria decumbens (Basilisk) were...

Author(s): Mupenzi Mutimura, Cyprian Ebong, Idupulapati M. Rao, and Ignatius V. Nsahlai

Farmers’ perception of agromorphological traits and uses of cocoyam (Xanthosoma sagittifolium (L.) Schott) grown in Ethiopia

August 2017

Cocoyam (Xanthosoma sagittifolium (L.) Schott) is one of the tuberous root crops in the Araceae family that has been grown in Ethiopia. It has spread widely and has become an important part of the agriculture and food systems of indigenous communities in southern and southwestern Ethiopia. However, less research attention has been given to cocoyam. It is a neglected/underutilized or ignored crop.  A survey was...

Author(s): Eyasu Wada, Zemede Asfaw, Tileye Feyissa and Kassahun Tesfaye

Performance of intraspecific hybrids (Kouillou x Robusta) of Coffea canephora Pierre

August 2017

The experiment was carried out in 2005 in the municipality of Ouro Preto do Oeste at the experimental station of Embrapa Rondônia. 256 genotypes were evaluated, from nine hybridizations among parents of Kouillou (Cpafro 121, Cpafro 194, Cpafro 199 and Emcapa 03) and Robusta (Robusta 1675, Robusta 2258 and Robusta 640). The experimental design was a randomized complete block design, where each cross was represented...

Author(s): Alexsandro Lara Teixeira, Flávio de França Souza, Rodrigo Barros Rocha, José Roberto Vieira Junior, Josemar Dávila Torres, Karine Marques Rodrigues, Marcos Santana de Moraes, Camila Andrade Silva, Victor Emanuel Gonçalves de Oliveira and João Luiz Resende Lourenço

Influence of boll sampling method and water stress on fiber quality of irrigated cotton (Gossypium hirsutum L.)

August 2017

The quality of cotton fibers in Brazil has been studied. This was done by studying the fiber samples obtained from bolls removed from the middle third of the plants. These fiber samples are referred to as “standard sample”. This way to collect fiber data requires lots of labor, and may disguise the results obtained in experimental appraisals, due to human errors in gathering boll. Besides, cotton yield and...

Author(s): João Henrique Zonta, Ziany Neiva Brandão, Josiane I. S. Rodrigues, Heder Braun, Alécio Pereira, Elloise R. C. Lourenço and Valdinei Sofiatti

Agronomic practices and causes of decline in trifoliate yam (Dioscorea dumentorum Kunth Pax) production in Enugu State, Nigeria

August 2017

Trifoliate yam is a species of yam with limited documented research and information on its production and importance in spite of its high yielding quality, nutritional, medicinal and industrial uses. This study was therefore carried out to describe agronomic practices, production trend and causes of decline in trifoliate yam production in Enugu state, Nigeria. Three agricultural zones, six blocks, eighteen circles and...

Author(s): Iwuchukwu J. C. and Okwor K. C

Sample size for evaluation of eggplant and gilo seedlings

August 2017

In horticultural nurseries, it is important to determine the number of plants to be evaluated to obtain reliable inferences about seedling growth. The objective of this study was to determine the sample size required to estimate the mean of quality traits of eggplant and gilo seedlings. The seedlings of both vegetables were produced in expanded polystyrene trays using (8×16) 128 cells each and 40 cm3 high. At 45...

Author(s): Leonardo Raasch Hell, Adriel Lima Nascimento, Omar Schmildt, Renan Garcia Malikouski, Adriano Alves Fernandes, Sávio da Silva Berilli, Nilson Nunes Morais Junior, Waylson Zancanella Quartezani, José Augusto Teixeira do Amaral and Edilson Romais Schmildt

Effect of seeds pretreatment and storage on improvement of the germination and emergence of Anthyllis cytisoïdes L.

August 2017

Anthyllis cytisoïdes L. is a species of shrubby legume that is a member of the Fabaceae family and grows in zones located along the coast, near the Mediterranean Sea. This shrubby forage species is considered a good aliment source for some ruminants. Pretreatment seeds germination and their viability after storage for long periods of time were tested. Pretreatment conditions were as follows: (T1) seeds were soaked...

Author(s): Acherkouk, M., Aberkani, K., Sabre, I. A., Maatougui, A., Amhamdi, H. and Haloui, B.

Effect of row spatial arrangements on agromorphological responses of maize (Zea mays L.) and cowpea [Vigna unguiculata (L.) Walp] in an intercropping system in Southern Cote d'Ivoire

August 2017

Field trials were conducted at the University Nangui Abrogoua, Abidjan, southern Cote d'Ivoire during the 2015 and 2016 short rainy season to study the performance of maize (Zea mays L.) and cowpea [Vigna unguiculata (L.) Walp] intercrop as influenced by row arrangement. A randomized complete block design (RCBD) with five treatments (SM; SC; MC; 1M1C and 2M4C) and three replications was used. SM was sole maize, SC...

Author(s): KIMOU Serge Hervé, COULIBALY Lacina Falengué, KOFFI Bertin Yao, TOURE Yaya, DÉDI Ky Juliette and KONE Mongomaké

Growth and senescence of Urochloa brizantha under Brazilian Cerrado conditions

August 2017

The growth and senescence of Urochloa brizantha cv. Marandu were analyzed under the Brazilian Cerrado conditions. The seeds were sowed in November at the beginning of the rainy season. Samples of tillers were collected. The culms, inflorescences, along with green and dead leaves were removed to obtain leaf area and dry matter measurements. The maximum leaf area index (LAI = 5.80 m2 m-2) was achieved at 97 days after...

Author(s): Tomás de Aquino Portes, Adriano de Melo Ferreira, Murilo de Melo Peixoto and Hyrandir Cabral de Melo

Pollination activity and foraging behavior of local honeybee (Apis mellifera) under open and caged conditions in Mekelle, Tigray, Ethiopia

August 2017

Locally there is cultivation of vegetables in greenhouse as a production system; however, it is not common to use honeybee as pollinators. This might be due to a fear of low pollination efficiency or activity of local bees under caged condition. Moreover there is no research related to the foraging behavior of local honeybee under caged condition. Hence, this investigation was designed to study foraging behavior of...

Author(s): Haftom Gebremedhn

The study of entrepreneurial skills required by small scale poultry farmers in Orumba North and South Local Government Area of Anambra State, Nigeria

August 2017

The study investigated entrepreneurial skills required by small-scale poultry farmers in Orumba North and South Local Government Area of Anambra State. Four research questions were developed and hypothesis tested at 0.05 level of significance. Twenty nine (29) structured questionnaire items were developed and face validated by three experts. The reliability of the questionnaire was determined using Cronbach Alpha...

Author(s): Felistas E. NwariejI, Bridget .C. Obi and Ejiofor Tochukwu

Restoring soil fertility in previously sugarcane cropped farms for maize production in Butere- Kakamega County

August 2017

The depletion of fertility in tropical soils of sub Saharan Africa (SSA) is mainly due to continuous cropping without proper nutrient replenishment. This study was intended to find ways of restoring soil fertility towards sustainable maize production in previously sugarcane cropped fields in Butere-Kakamega County. Field experiments were conducted in Butere and Bukura sites located in Kakamega County in the long rains...

Author(s): S. Oyamo, C. Serrem and A. N. Otinga

Response of yield and yield components of tomato (Solanum lycopersicon L.) to different inter and intra-row spacing at Merebleke, Northern Ethiopia

August 2017

A field experiment was conducted at Aksum Agricultural Research Center Merebleke irrigation testing site for two years, 2014 and 2015 cropping calendar under irrigation condition. The objective of the study was to determine the effect of Inter and intra-row spacing on growth, Yield and fruit characteristics of Melkashola variety of tomato. The trial was laid out in factorial randomized complete block design in three...

Author(s): Shushay Chernet, Fasigaw Belay, Guesh Tekle, Yemane Kahsay, Nahom Weldu and Gebretsadkan Zerabruk

Growth and yield responses of sesame to organic fertilizer under tropical conditions

August 2017

The use of cattle manure and other organic compounds can be a profitable and efficient alternative in sustainable agriculture. The aim of this work was to evaluate the development and production of sesame ‘BRS Seda’ for organic fertilization at different doses, under the conditions of soil and climate found in Catolé do Rocha, in the State of Paraíba, Brazil. The following characteristics were...

Author(s): Ivomberg Dourado Magalhães, Alexandre Bosco de Oliveira, Leandro Silva do Vale, Claudio Silva Soares and Rener Luciano de Souza Ferraz

Symbiotic efficiency of pea (Pisum sativum) rhizobia association under field conditions

August 2017

The objective of this study was to evaluate the symbiotic efficiency of rhizobia under field conditions for peas (Pisum sativum L.). Ten treatments were evaluated and divided into eight strains of rhizobia and two uninoculated strains as controls (with and without the addition of mineral N). The variables analyzed were: Nodulation, dry mass of the aerial part, total N of the aerial section, pea production and symbiotic...

Author(s): Aleksander Westphal Muniz, Murilo Dalla Costa, Enilson Luiz Saccol de Sá, Ana Beatriz Fiuza and Edemar Brose

Organic matter sources in the composition of pelletized organomineral fertilizers used in sorghum crops

August 2017

Organomineral fertilizers have been used to meet plants’ nutritional needs and reduce producers’ reliance on mineral fertilizers. This study aimed to determine the effect of organic matter sources for organomineral fertilizers and traditional mineral fertilizers to the sorghum initial development. The experiment followed a randomized complete block design in a ‘4 x 3 + 2’ factorial arrangement,...

Author(s): Douglas Prates Oliveira, Reginaldo de Camargo, Ernane Miranda Lemes, Regina Maria Quintão Lana, Ana Luísa Alves Matos and Mara Lucia Martins Magela

Soybean yield of degraded pasture after reimplantation with and without phosphating

August 2017

The objective of this work was to evaluate the effect of different forms of reimplantation of pasture with and without phosphatation aiming to contribute to the increase of soybean yield. The experiment was conducted at the Experimental Farm of Universidade do Oeste Paulista (Unoeste), located in the municipality of Presidente Bernardes - SP. The design was done with split plot scheme, containing four replicates. The...

Author(s): Luanda Torquato Feba, Edemar Moro and Wellington Eduardo Xavier Guerra

Interaction of biological nitrogen fixation and fertilization: Effects on growth and yield of common bean in the dry season

August 2017

The inoculation with Rhizobium together with nitrogen (N) fertilization during sowing can maximize common bean yield cultivated in the rainy season, but this interaction was not studied in the dry season cultivation. Therefore, the objective of this study was to evaluate the effects of biological nitrogen fixation (BNF) and or N fertilization on growth and yield of common bean cultivated in the dry season. Two...

Author(s): Rodrigo Luiz Neves Barros, David Cabral Macedo, Gepatrik Rodrigues Lima and Carlos Pimentel

Selenium and agricultural crops

August 2017

Higher plants have different capacities to accumulate and tolerate selenium, referred to as accumulative and non-accumulative plants. Selenium-accumulators plants may contain hundreds of times more selenium than non-accumulators even when grown in the same soil, or can also grow in soils with low and medium selenium reserves; while selenium non-accumulator plants present low accumulation and tolerance to high selenium...

Author(s): Gilmara Pereira da Silva, Leonardo Correia Costa, Victor Vergara Carmona, Sylvia Leticia Oliveira Silva and Edilaine Istefani Franklin Traspadini

Synergy and trade-offs between economic efficiency and environmental effects of alternative land use practices using farm level static bio-economic modelling in Bale Eco-Region

August 2017

In Bale Eco-Region (EBR), production and productivity mainly suffers from fertility deterioration, skyrocketing prices of fertilizer, and unsustainable interactions among different land uses systems. This study was initiated to determine synergy and trade-offs between economic efficiency and environmental effects of alternative land use practices using farm level static bio-economic modelling EBR. Data were collected...

Author(s): Desalagn Alemayehu, Teshale W. Amanuel and Van Rooijen

Balance of elements and tolerance of the Terminalia catappa L. to seawater salinity

August 2017

The Terminalia catappa L., popularly referred to as Indian almond, adapts to different soil and climatic conditions. It is a fast growing tree and has been widely used for ornamental and medicinal purposes. This plant might also be used as a carbon sequester in areas subject to soil and water salinity problems. This paper aims at studying the balance of salts among parts of the Indian almond tree under different...

Author(s): Francisco Alves da Silva, Marcos Eric Barbosa Brito, Pedro Dantas Fernandes, Elisandra Ribeiro de Lima Pereira, Camilo Alisson Simões de Farias and Marcos Barros de Medeiros

Symptomless banana suckers sourced from Xanthomonas wilt infected fields are a viable alternative for seed within infected banana-based landscapes lacking access to clean planting materials.

August 2017

Xanthomonas wilt (XW) caused by Xanthomonas campestris pv. musacearum (Xcm) is an important constraint to banana production in East and Central Africa. The use of clean planting materials (CPM) for establishing new fields/ re-planting rouged fields/mats is recommended. However, banana is mainly produced by resource-poor small-holder households with no/limited access to CPM. We assessed XW incidence in fields planted...

Author(s): Charles Sivirihauma, Walter Ocimati, Lusenge Vutseme Jules Ntamwira, Lilliane Bahati and Guy Blomme

Effect of heat treatment on forage quality of bio-fortified orange fleshed Ipomea batatas crop residues and roots

August 2017

Post-harvest management of sweet potatoes (SP) crop residues preserves nutrients, deactivates inhibitor compounds and improves rumen degradation. The aim of the study was to determine effects of drying crop residues and heating roots on forage value of a bio-fortified orange fleshed sweet potato (OFSP) variety in South Africa. The crop was harvested at maturity and roots separated from crop residues. Roots were washed,...

Author(s): Florence Veronica Nherera-Chokuda, Christiaan Jacobus Smit, Mukengela Claude Muya and Joyce Ledile Marumo  

Implications of tillage practices, management of soil surface and fertilizer application on sustainable dryland agriculture: A case study of Eastern Rwanda

August 2017

Conservation agriculture (CA) is becoming popular in sub-Saharan Africa as potential solution to soil degradation. However, most findings are based on large scale, mechanized agricultural production systems which are not easy to apply within the smallholder farmer’s context. This study assessed the implications of tillage practices, management of soil surface and fertilizer application on sustainable dryland...

Author(s): M. Kabirigi, F. K. Ngetich, K. K. Mwetu, P. Rushemuka, E. J. Wasige, Vicky M. Ruganzu and N. L. Nabahungu

A gender and decent work analysis of cassava production and on-farm processing, in Kuria west sub-county, Kenya

August 2017

In Kenya, cassava (Manihot esculenta) is one of the strategic crops with the ability to withstand adverse climatic conditions. It thrives well in areas with little rainfall such as Kuria west sub-county. It is an important food security crop for resource poor households and has a high potential for value addition. With limited range of crop and livestock farm enterprises that can be raised, cassava production engages...

Author(s): Job Kibiwot Lagat and  Mary Chepkoech Maina

Silicon supplements affect yield and fruit quality of cucumber (Cucumis sativus L.) grown in net houses

August 2017

Silicon (Si) plays an important role in plant growth and development, but the uptake, accumulation in tissue, and beneficial effects of Si differ greatly between plant species. Net house experiments were conducted with Cucumis sativus L. ‘Shabah F1’ in 2013 and repeated in 2014 to determine the effects of Si supplementation on yield, fruit quality, and chemical composition. Diatomite (86-89% SiO2) was...

Author(s): Emad Abd-Alkarim, Yousry Bayoumi, Elmahdy Metwally and Mohamed Rakha,

Assessment of factors influencing smallholder farmers’ adoption of mushroom for livelihood diversification in Western Kenya

July 2017

Poverty is a critical issue in developing countries. It has become almost impossible to carry out any profitable agricultural production as a means of livelihood diversification in areas with small land acreage. Therefore, there is need to identify enterprises that can be incorporated into small holder farmers’ production processes. This study assessed the factors that influence small holder farmers’...

Author(s): Irene Christine Ongoche, David Jakinda Otieno and Willis Oluoch- Kosura

Assessing the impact of different tillage systems and land uses on CO2-C emissions in Eastern Amazonia

July 2017

The production and emission of CO2 in native, pasture and cultivated areas is a result of microbiological activity and mineralization of organic matter, and depends on favorable environmental factors, such as temperature, availability of water and of land use. The results of this work show that the no tillage system (NT) has the potential to mitigate 37.7% of C-CO2 efflux from cultivation of soy compared to conventional...

Author(s): Miércio Jorge Alves Ferreira Junior, Raimundo Cosme de Oliveira Junior, Rodrigo da Silva, José Mauro de Sousa de Moura,  Alírio Furtado Neto, Marcos Ximenes Ponte  and Troy Patrick Beldini

Repeatability analysis on morphological descriptors in the early stages of development

July 2017

The insufficiency of morphological descriptors reveals the importance of studies related to this topic for the genetic improvement of soybean, with attention to the possible descriptors measured in early stages of plant development which allows obtaining fast results. The aim of this work was to estimate the coefficient of repeatability of some morphological descriptors in the early stages of development of...

Author(s): Santos Henrique Brant Dias, Francisco Charles dos Santos Silva, Fabíola dos Santos Dias, Ronaldo Silva Gomes, Edcássio Dias Araújo, Gemima Santos Arcanjo, Francielle de Matos Feitosa, Élvis da Silva Alves, Jannaylton Éverton Oliveira Santos and Fernando França da Cunha

Evaluation of suitability of tube well water for irrigation in Maiduguri Metropolitan, Borno State, Nigeria

July 2017

Groundwater contamination is gaining more concerns due to its direct and/or indirect impact on public health. Groundwaters from various sources are commonly used to irrigate vegetables in Maiduguri, Borno State. In this study, the physicochemical qualities of groundwater collected from 20 randomly selected tube wells in Maiduguri were evaluated for their suitability or otherwise for irrigation purposes. Selected wells...

Author(s): A. U. Bashir, M. K. Rowshon, J. M. Dibal and U. A. Kawuyo

Improving geotechnical properties of a sand-clay soil by cement stabilization for base course in forest roads

July 2017

The study evaluated the chemical stabilization of soils with cement toward application in improving forest roads, as constructive alternative of low cost. The study was carried out with fine soils from the region of Niquelândia-GO, where the sand-clay-silt particle proportion was predominant, and Portland cement CP-II-Z-32 used as a stabilizing agent at 2% under dry soil weight. Geotechnical tests were conducted...

Author(s): Fabiano Emmert, Reginaldo Sérgio Pereira, Eder Pereira Miguel, Fabrícia Conceição Menez Mota, Humberto Angelo, Ailton Teixeira do Vale, Mayara Paula Oliveira Machado, Mauro Eloi Nappo and Ildeu Soares Martins

Growth of Jatropha curcas L. plants under salt and nutrition stress

July 2017

The objective of this study was to evaluate the effects of nutrition and salt stress on the growth and accumulation of mineral elements in Jatropha curcas plants. The work was conducted in greenhouse with 100% solar radiation interception, at Goiás State University, Ipameri Campus, Goiás, Brazil. The experiment was set up in five-liter containers following the completely randomized design in 4 x 2...

Author(s): Fabio Santos Matos, Ricardo Pires Ribeiro, Tarik Galvão Neves, Rosane Angélica Dos Anjos, Patrícia Souza Da Silveira, Clair Kássio Lamberty Cruvinel, Leandro Juen and Hilton Dion Torres Júnior

Response of Eleusine indica to herbicides and N fertilizer in dry seeded rice

July 2017

Weed has become one of the most serious problems in dry seeded rice (DSR). To increase the competitiveness with weeds and achieve the optimum growth of rice, weed management in DSR needs an integration of herbicides and optimum nitrogen (N) fertilizer rates. In this study, the bioassay species were treated with a series of pre-emergence (pretilachlor and pendimethalin) and early post-emergence (propanil+thiobencarb)...

Author(s): Norhafizah M. Z., Gunavathy S., Chuah T. S., Norsyafiqa S., Nuradiba N. I. and Nur Farahatul A. A.

Variability evaluation of castor seeds (Ricinus communis) by multivariate analysis of local accessions from Mexico

July 2017

Castor oil is an important raw material used in a diverse range of chemical products with high added value. From a collection of Mexican grown seeds from the castor plant (Ricinus communis), 18 accessions with a high potential for oil production and panicle indehiscent were selected and cultivated. The variability was studied from three aspects: seed yield, seed composition and the oil quality, through 22 descriptors...

Author(s): M. S. Acosta-Navarrete, J. E. Botello-Álvarez, M. Hernández-Martínez, J. M. Barrón-Adame, J. Quintanilla-Domínguez, G. Gonzalez-Alatorre, S. Montes-Hernández and J. Quintanilla-Domínguez

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