African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6841

AJAR Articles

Improved production systems for common bean on Phaeozem soil in South-Central Uganda

November 2016

Common bean (Phaseolus vulgaris L.) is the most important grain legume in Uganda. Beans managed under conventional systems range in yield from 500 to 800 kg ha-1, with a yield gap of about 75%. The objective of this study was to compare the productivity and net profitability of four bean cultivars grown under three management systems on Phaeozem soil (Mollisol) in Masaka District, Uganda. The experimental design was a...

Author(s): Lance H. Goettsch, Andrew W. Lenssen, Russell S. Yost, Ebby S. Luvaga, Onesmus Semalulu, Moses Tenywa and Robert E. Mazur

Electric energy consumption and economic feasibility of led lighting system in broiler house

November 2016

This study aimed to compare the performance of incandescent lamps and LED lamps, regarding the consumption of electricity and the economic viability of these lighting systems in broiler houses in western Paraná State, Brazil. The study was conducted to compare the power consumption in two broiler houses of the dark house type in São Miguel do Iguaçu, Paraná, Brazil; one lighting system with...

Author(s): Solles Augusto Rovaris, Jair Antonio Cruz Siqueira, Carlos Eduardo Camargo Nogueira, Samuel Nelson Melegari de Souza, Andrei Antonio Mondardo, Reginaldo Ferreira Santos, Claudinei de Almeida, Glaucio José Gomes and Amauri Massochin

Characteristics of soils under seasonally flooded wetlands (oshanas) in north-central Namibia

November 2016

Lowland wetlands generally have a high agricultural production potential and can be local hot-spots for biodiversity. Specific seasonal wetland system is largely distributed in north-central Namibia. Seasonal wetlands consist of seasonal river wetlands (locally known as oshanas). However, studies on soil fertility, salinity and sodicity in seasonal river wetlands are still limited in this area. The objective of this...

Author(s): Yoshinori Watanabe, Fisseha Itanna, Yuichiro Fujioka, Ausiku Petrus and Morio Iijima,

Effects of different tillage systems and plant densities in corn silage yield

November 2016

In order to investigate tillage systems and plant densities effects on corn (Zea mays L.cv.sc704) silage yield and component after harvesting wheat, an experiment was carried out in randomized complete block design in a strip plot. Treatments were arranged with four replications in Agricultural and Natural Resources Research Center Station of Dashte-Naz in Mazandran, Iran, for two years in 2012 and 2013. Tillage systems...

Author(s): Masoud Mohseni and Mohammad Hossein Haddadi

Growth of eucalyptus seedlings irrigated with different wastewaters

November 2016

This study aimed to evaluate the growth of two species and one eucalyptus hybrid irrigated with different wastewaters. The experiment was carried out in a greenhouse in a completely randomized split-plot experimental design with three replications. The effluent included: Urban source, beef cattle slaughterhouse, poultry/swine slaughterhouse and soy processing/dairy plant from the wastewater treatment plants (WWTPs). In...

Author(s): Joiran Luiz Magalhães, Gustavo André Simon, June Faria Scherrer Menezes, Arthur Almeida Rodrigues, Uilter Sousa Azambuja, Douglas Almeida Rodrigues and Antônio Carlos Saraiva da Costa

Sweet potato cultivars grown and harvested at different times in semiarid Brazil

November 2016

Sweet potato constitutes a source of energy and nutrient which is very important economically, especially, for the poorest people in the world, supplies calories, vitamins and minerals in the diet. The determination of the harvest age has great influence on vegetative production, quality, productivity and root biomass. The planting season is determined by climatic elements, which have influence on the growth,...

Author(s): José Ricardo Tavares de Albuquerque, Rayanne Maria Paula Ribeiro, Luiz Aurélio Freitas Pereira, Aurélio Paes Barros Júnior, Lindomar Maria da Silveira, Manoel Galdino dos Santos, Almir Rogério Evangelista de Souza, Hamurábi Anizio Lins and Francisco Bezerra Neto

Morphophysiological changes in young plants of Jatropha curcas L. (Euphorbiaceae) subjected to water stress and recovery

November 2016

To investigate drought-induced changes in morphophysiological characteristics, seedlings of two genotypes of Jatropha curcas (CNPAE 183 and CNPAE 191) were grown under two watering regimes: irrigated (-33.1 to 13.5 to kPa) and water deficit (-409.5 to 49.5 to kPa) for 55 days, followed by six days of rehydration (DAR). Withholding water led to a significant reduction (p<0.05) of leaf water potential (ΨW) and an...

Author(s): Priscila Souza de Oliveira, Leandro Dias da Silva, Tessio Araújo de Santana, Bruno Galvêas Laviola, Arlicélio Queiroz Paiva, Marcelo Schramm Mielke and Fábio Pinto Gomes

Kinetics drying of Spirulina platensis

November 2016

Spirulina platensis is a blue-green multicellular photosynthetic cyanobacterium and it is used in many countries as human and animal feed. The aim of this work is to determine and set kinetics drying for S. platensis at different temperatures (30, 40, 50 and 60°C). A completely randomized design was adopted and the treatments were the drying temperatures. S. platensis was furnished by the company, Brasil Vital,...

Author(s): Pâmella de Carvalho Melo, Ivano Alessandro Devilla, Cristiane Fernandes Lisboa, Mateus Morais Santos and Pedro Henrique Tolentino Duarte

Abundance and distribution of Striga (Striga hermonthica (Del.) Benth.) infestation in selected sorghum (Sorghum bicolour L. Moench) growing areas of Tigray Region, Ethiopia

November 2016

A survey was conducted in 2014 to determine the abundance and distribution of Striga hermonthica in selected woredas of Tigray. S. hermonthica was commonly distributed across all study sites, its prevalence varied among sites (Kebelies). The highest levels of Striga infestation was observed at Hadinet (400), Dabano (390), Nebar Hadinet (351), Giera (299), Hadas Lemlem (278), Selam (267), and Zuriya Dansha (261)....

Author(s): Atsbha Gebreslasie, Taye Tessema, Ibrahim Hamza and Demeke Nigussie

Dynamics of biomass of pearl millet and Paiaguas palisadegrass in different forage systems and sowing periods in yield of soybean

November 2016

There is increasing global concern with environmental food production and sustainability to maintain high carbon stocks in soil biomass. The biomass produced in crop-livestock integration system increases soil organic matter, acts in nutrient cycling, improves the physical, chemical and biological characteristics of soil and increases grain production. Moreover, this soil management system mitigates greenhouse effect...

Author(s): Raoni Ribeiro Guedes Fonseca Costa, Kátia Aparecida de Pinho Costa, Renato Lara de Assis, Charles Barbosa Santos, Eduardo da Costa Severiano, Ana Flávia de Souza Rocha, Itamar Pereira de Oliveira, Pedro Henrique Campos Pinho Costa, Wender Ferreira de Souza and Millena de Moura Aquino

Effects of chemical and bio-fertilizers on yield, yield components and grain quality of maize (Zea mays L.)

November 2016

A field experiment was conducted in two consecutive seasons (2009 and 2010) to assess the effect of two microbial fertilizers, chicken manure, urea and their possible combinations on the performance of a maize variety (Hudeiba 45). The bio fertilizers used were Azospirillum brasilense (A), Azotobacter sp (B) and chicken manure (CM) at a rate of 7t/ha). Urea (46% N) was applied at rates of 120kg/ha (N) and 40kg/ha (T)....

Author(s): Hashim A. Fadlalla, Hatim A. A. Abukhlaif and Somaya S. Mohamed

Urban crop production in southeast Nigeria: Potentials and constraints

November 2016

Urban farming (UF) offers potential benefits to urban areas and has captured the attention of residents. Based on a survey and interview of 210 urban farmers, this article explores the potential benefits, and constraints to urban farming, in southeast Nigeria. The farmers indicated that the potential benefits included: food source, income source and efficient utilization of space among others. Major food produced were...

Author(s): Anthonia Asadu, Innocent Enwelu, Philip Ifejika and Edwin Igbokwe

Reproduction of Meloidogyne javanica in crambe plant and influence on crop yield and oil content

November 2016

The crambe is an oilseed plant of the Brassicaceae family, which has the potential to grow in the winter, in succession to soybean crop, and whose seeds have been used for extraction of oil for biofuel production. However, in areas with nematode infestation, special care is needed in the selection of the species to be used in crop succession. Thus, the present study aimed to assess the susceptibility of crambe to...

Author(s): Carolina Amaral Tavares-Silva, Claudia Regina Dias-Arieira, Luiz Antônio Baccarin, Tiago Roque Benetoli da Silva and Thais Santo Dadazio

Technical efficiency among irrigated and non-irrigated olive orchards in Tunisia

November 2016

Tunisia olive production fluctuates yearly because it is highly dependent on annual precipitation, and growers need to enhance productivity and efficiency by introducing irrigation. Investigating how irrigation affects the technical efficiency of olive production may contribute to improvement in productivity. This study employs the Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) methods to...

Author(s): Hajime Kamiyama, Kenichi Kashiwagi and Mohamed Kefi

Periodicity of crop coefficient and soil water depletion fraction in a climatological water balance

November 2016

In comparison to a measured field water balance (FWB), we aimed to evaluate the impact of using different functions to daily estimate the crop coefficient (Kc) and soil water depletion fraction (p) in a climatological water balance (CWB), and verify that the grouping of output variables provides improved results. The FWB was conducted in Telêmaco Borba, Southern Brazil. The data were collected at weekly intervals...

Author(s): Bruno César Gurski, Jorge Luiz Moretti de Souza, Daniela Jerszurki, Robson André Armindo and Adão Wagner Pêgo Evangelista

Evaluation and selection of promising sunflower germplasm under early winter planting conditions

November 2016

Agronomic potential of traditional sunflower spring varieties is low because their flowering and grain filling are often exposed to mid and end-season drought. To overcome this, new breeding strategy consisted of selecting varieties tolerant to winter cold in order to shift to autumn or early winter planting. Nowadays, ‘Ichraq’ is the only registered autumn variety in Morocco. The objective of this research...

Author(s): Karim Houmanat, Mohamed EL Fechtali, Hamid Mazouz and Abdelghani Nabloussi

Fremont mandarin: Fruit with a long shelf life for the fresh fruit market

November 2016

The goals of the present study were to identify resistant mandarin varieties with potential for the fresh fruit market that could enable an extension of the harvesting season and to develop appropriate methods to maintain fruit quality for longer storage periods. Fremont mandarin fruits were harvested at optimum maturity and stored with and without wax coating under different storage conditions: ambient (21 ±...

Author(s): Camilla de Andrade Pacheco, Evandro Henrique Schinor, Mariângela Cristofani-Yaly, Marcos Antônio Machado and Fernando Alves de Azevedo

Effect of phosphorus fertilization on yield and quality of onion bulbs

November 2016

Obtaining information about the onion responses to different doses of phosphorus can contribute to optimizing the use of fertilizers and consequently make the activity more profitable with less impact on the environment. Therefore, this study aimed to evaluate the effects of different phosphorus doses on yield and quality of onion bulbs. The design of the experiment was in a randomized block design with four...

Author(s): José Novo Júnior, Rayanne Maria Paula Ribeiro, Aridênia Peixoto Chaves, Valdívia de Fátima Lima Sousa, Leilson Costa Grangeiro, Maria Zuleide de Negreiros, Saulo de Tárcio Pereira Marrocos and Gardênia Silvana Oliveira Rodrigues

Agronomic performance and path analysis of roundup ready and conventional soybean from two-way crosses in the northwestern of São Paulo, Brazil

November 2016

The aim of this study was to compare the agronomic performance of RR soybean genotypes with conventional soybean genotypes derived from two-way crosses and evaluate through path analysis the influence of important traits for culture on the grain yield (GY) in the Northwestern of São Paulo, Brazil. It was used the randomized block design with three replications. Among the analyzed RR genotypes, three genotypes has...

Author(s): Wallace de Sousa Leite, Sandra Helena Unêda-Trevisoli, Eder Licieri Groli, Cleber Vinicius Giaretta Azevedo, Bruno Henrique Pedroso Val, Eduardo Henrique Bizari, Fabiana Mota da Silva and Antonio Orlando Di Mauro

Soil physico-chemical properties and land suitability evaluation for maize (Zea mays), beans (Phaseolus vulgaris) and Irish potatoes (Solanum tuberosum) in tephra soils of the western slopes of mount Kupe (Cameroon)

November 2016

Soils of the western slopes of Kupe Mountain in Cameroon were characterized to understand their proper land use and sustainable management. Evaluation of land suitability for maize (Zea mays), beans (Phaseolus vulgaris) and Irish potatoes (Solanum tuberosum) were assessed, considering the socio-economic importance of these crops in Cameroon. Three sites, representative of the study area were identified following a...

Author(s): Roger Kogge Enang, Bernard Palmer Kfuban Yerima and Georges Kogge Kome

Methods for breaking seed dormancy of ryegrass during storage periods

November 2016

The presence of dormant seeds makes it difficult to evaluate physiological quality and requires the use of appropriate methods in order to break seed dormancy. The objective of this study was to evaluate the effectiveness of different methods to break the dormancy of ryegrass seeds stored under environment conditions in different periods. Ryegrass seeds, BRS Ponteio cultivar, produced in two locations were used and...

Author(s): Andréa Bicca Noguez Martins, Aline Klug Radke, Manoela Andrade Monteiro, Letícia Winke Dias, Lilian Vanusa Madruga de Tunes, Geri Eduardo Meneghelo, Fernanda Da Motta Xavier, André Pich Brunes, Caroline Jácome Costa and Andréa Mittelmann

Phenotypic characterization of physic nut populations

November 2016

This study aimed to identify phenotypic plasticity in populations of Jatropha curcas. The experiment was conducted with a completely randomized design with eleven treatments and four replications. Morphophysiological variables were analyzed in the agricultural year, 2014-2015. Positive correlations were only observed between crown diameter and seed production, and canopy diameter and stomatal density in adaxial...

Author(s): João Paulo de Morais Oliveira, Jéssica Ferreira Silva, Bruna Santos de Oliveira, Priscilla Gomes de Freitas Santos, Patrícia Souza da Silveira and Fábio Santos Matos

Growth and physiology of peanut (Arachis hypogaea L.) irrigated with saline water and biofertilizer application times

November 2016

The peanut crop has adaptive features to high salinity levels in the soil, due to its morphological and physiological characteristics. The objective of this study was to evaluate the use of biofertilizer in reducing the effects of irrigation water salinity on the vegetative and physiological behavior of the peanut crop, as well as the crop development under saline conditions. The experiment was conducted in a...

Author(s): Daivyd Silva de Oliveira, Thiago Jardelino Dias, Edvania Pereira de Oliveira, Hemmannuella Costa Santos, Welliton Barros de Magalhaes, Bruno Ferreira Matos, Leandra de Melo Cavalcante Sousa and Jose Sebastiao de Melo Filho

Agronomic performance evaluation of sugarcane varieties under Finchaa Sugar Estate agro-ecological conditions

November 2016

Field experiment was conducted at Finchaa Sugar Estate, to evaluate and select sugarcane varieties with better agronomic performances under Finchaa agro-ecological condition. Eleven sugarcane varieties are  namely, :B58 230, N53 216, N52 219, M202/46, CP47/193, DB386/60, B59 250, COK 30, B60 163, CO 1148, BO 60349 and NCo334 (Check variety) were evaluated in completely randomized block design with three...

Author(s): Abiy Getaneh, Feyissa Tadesse, Netsanet Ayele and Mijena Bikilla

Predicting grain yields of maize in an Ultisol amended with organic wastes using modified productivity index in Abakaliki, Southeastern Nigeria

November 2016

Predicting grain yields of maize in soil amended with organic wastes using modified productivity index was studied for three cropping seasons. Soil samples for determination of productivity index and individual productivity indicators for prediction of grain yields of maize were collected from 0 15, 15-30, 30-45, and 45-60 cm depths. Ascribed sufficiency value was assigned to each productivity indicator of bulk density,...

Author(s): Nwite J. N.

Pore size distribution and hydro-physical properties of cohesive horizons treated with anionic polymer

November 2016

Long molecular chain of polymers with active groups, combined with its complexity and flexibility to different environmental conditions provides an interaction of these groups with the mineral soil clays, thereby qualifying the polymers as soil flocculants effective. This study is aimed at evaluating the pore size distribution and hydro-physical properties of soils with cohesive horizons of the coastal plains of...

Author(s): Diego Vandeval Maranhão de Melo, Brivaldo Gomes de Almeida, Kairon Rocha Andrade, Edivan Rodrigues de Souza, Wagner Luís da Silva Souza and Ceres Duarte Guedes Cabral de Almeida

Anthelmintic and antioxidant potential of Fagopyrum esculentum Moench in vitro

November 2016

One of the limiting factors of sheep breeding is helminth infection, mainly resulting in poor weight gain. The combination of parasite control strategies, including the use of medicinal herbs can reduce the use of chemical anthelmintics. Tanniferous plants, by having phenolic compounds, mainly condensed tannins were associated with anthelmintic action. Fagopyrum esculentum Moench (buckwheat) has flavonoids, phenolic...

Author(s): Flávio Marcel Ferreira Gonçalves, Rafael Rostirolla Debiage, Eidi Yoshihara Regildo Márcio Gonçalves da Silva, Petrônio Pinheiro Porto, Amanda da Costa Gomes and Erika Cosendey Toledo de Mello Peixoto

Productivity and quality of watermelon as function of phosphorus doses and variety

November 2016

Although watermelon is one of the major vegetable-fruit crop, management fertilization still lacks information for increased productivity, quality and profitability, and to lower environmental impact. An experiment was conducted in Mossoró, Brasilian city of Rio Grande do Norte, from August to October 2012, to evaluate the effects of doses of phosphorus (P) (0, 45, 90, 135, 180 and 225 kg ha-1 P2O5) in...

Author(s): Francisco das Chagas Gonçalves, Valdívia de Fátima Lima Sousa , José Novo Júnior, Leilson Costa Grangeiro, José Francismar de Medeiros, Arthur Bernardes Cecílio Filho and  Saulo de Tárcio Pereira Marrocos

Growth indexes, production and tolerance of peanut irrigated with saline water and bovine biofertilizer

November 2016

Peanut (Arachis hypogaea) is one of the most cultivated oil plant worldwide since it is widely consumed as food. In this sense, this work aims to evaluate the growth, production and tolerance of peanuts under the effect of different levels of electrical conductivities in irrigation water and bovine biofertilizer. The experiment was conducted in a greenhouse located at the State University of Paraíba - Campus IV,...

Author(s): José Sebastião de Melo Filho, Mario Leno Martins Véras, Lunara de Sousa Alves, Nelto Almeida Sousa, Leandra de Melo Cavalcante, Edinete Nunes de Melo, Rayane Amaral de Andrade, Saulo Soares da Silva, Thiago Jardelino Dias and Alvaro Carlos Gonçalves Neto

Growth aspects and production of cotton under salt stress as a function of organic fertilizer

November 2016

The cotton plant is a species cultivated in many parts of the world, with enormous economic importance. The objective of this study was to evaluate the effect of salinity levels in earthworm humus quantities function on the growth and production of cotton. The experiment was conducted in a greenhouse at the Campus IV in the State University of Paraiba, municipality of Catolé do Rocha-PB,...

Author(s): Lunara de Sousa Alves , Mario Leno Martins Véras , José Sebastião de Melo Filho, Nelto Almeida Sousa , Rosinaldo de Sousa Ferreira , Lucimara Ferreira de Figueiredo , Emanoel da Costa Alves , Karialane da Silva Belarmino , Mayara Andrade de Souza , Evandro Franklin de Mesquita

Determinants of profit in sustainable forest management in the Brazilian Amazon

November 2016

The sustainable management of tropical forests has been a great concern and challenge for the forest sector in the Brazilian Amazon. This study aimed to better understand sustainable forest management in the Brazilian Amazon focusing on two research questions: (a) Is sustainable tropical timber production financially viable? (b) What are the profit determinants under sustainable forest management? In this research, we...

Author(s): Humberto Angelo, Alexandre Nascimento de Almeida, Eraldo Aparecido Trondoli Matricardi, Carlos Francisco Rosetti, Ricardo de Oliveira Gaspar, Eder Pereira Miguel and Pedro Guilherme de Andrade Vasconcelos

Soil micronutrients status assessment, mapping and spatial distribution of Damboya, Kedida Gamela and Kecha Bira Districts, Kambata Tambaro zone, Southern Ethiopia

November 2016

Micronutrients are important for crop growth, production and their deficiency and toxicity affect crop yield. However, the up dated information about their status and spatial distribution in Ethiopian soils is scarce. Therefore, fertilizer recommendation for crops in the country has until recently focused on nitrogen and phosphorus macronutrients only. But many studies have revealed the deficiency of some micronutrients...

Author(s): Alemu Lelago Bulta, Tekalign Mamo Assefa, Wassie Haile Woldeyohannes and Hailu Shiferaw Desta

Irrigation water management during the ripening of tomato aiming fruit quality

November 2016

Despite the shortage of water resources be evident worldwide, turning prosperous lands into unproductive and affecting the existence of humidity, there is a great fraction of producers who still do not implement the proper management of the irrigation water in their properties. The poor management of irrigation is still a reality for most of the producers located in Brazil Middle Cerrado, which continue irrigating the...

Author(s): Fábio Teixeira Delazari, Luan Brioschi Giovanelli, Ronaldo Silva Gomes, Ronaldo Machado Junior, Júlia De Oliveira Lima, Elis Marina De Freitas, Silvio Pereira Bueno and Derly José Henriques Da Silva

Prevalence of viruses infecting plantain (Musa sp., AAB genome) in the major growing regions in Cote d’Ivoire

November 2016

This study was undertaken to determine the prevalence of viruses, viz Banana streak Obino l’ewai virus (BSOLV), Cucumber mosaic virus (CMV), Banana mild mosaic virus (BanMMV) and Banana bract mosaic virus (BBrMV) causing serious diseases on plantain in Cote d'Ivoire. From April 2010 to July 2010 and June 2011 to August 2011, 103 farmers' plots located in 13 important plantain productions regions were...

Author(s): Kouakou Théodore Kouadio, Caroline De Clerck, Thérèse Atcham Agneroh, Ludivine Lassois, Olivier Parisi, Sébastien Massart, Philippe Lepoivre and M.  Haïssam  Jijakli

Removal of nitrogen and phosphorus from cattle farming wastewater using constructed wetland system

November 2016

The confined dairy cattle system employs the most modern production techniques with respect to the genetic standards of the herds. The success found in these systems promoted an increase in the number of confined animals and, consequently, an increase in the produced volume of waste, causing the waste from dairy cattle farming to be one of the largest problems in intensive management systems. This effluent has high...

Author(s): Geovana P. GUIMARÃES, Dinara G. ALVES, Marcos F. JORGE, Alexandre L. NASCENTES, Camila F. de PINHO, Leonardo D. B. da SILVA and Antônio Carlos  F. de MELO

Determination of wheat crop coefficient (Kc) and soil water evaporation (Ke) in Maringa, PR, Brazil

November 2016

The objective of the present study was to determine the crop coefficient (Kc) of wheat and soil water evaporation (Ke) in Maringá, PR, Brazil. Wheat crop evapotranspiration (ETc) was determined through the water balance method, using drainage lysimeters integrated with soil moisture measurements. The ETo was calculated using the Penman-Monteith equation with climate data from an automatic weather station, then Kc...

Author(s): Paulo Vinicius Demeneck Vieira, Paulo Sergio Lourenço de Freitas, Andre Luiz Biscaia Ribeiro da Silva, Heraldo Takao Hashiguti, Roberto Rezende and Cleonir Andrade Faria Junior

Method and phenological characterization of the stadiums and phases of the development of castor bean plants

November 2016

With increasing global energy demands, the production of biofuels has been gaining economic importance, with the castor oil plant being one option for the production of biofuel. This study was performed on irrigated cultivation of the castor oil plant, variety IAC 2028, from March to October 2011, in Lavras, Minas Gerais, Brazil, with the following aims: a) to characterise and estimate the sub stages and stages of the...

Author(s): Gervásio F. A. Rios, Luiz G. de Carvalho, João J. da Silva Junior, Pedro C. Neto and Antonio C. Fraga

Agronomic performance, production components and agricultural productivity of maize (Zea mays L.) cultivars

October 2016

The rain fed crop is highly dependent on environmental conditions, and study aims to evaluate the agronomic performance, yield components and agricultural productivity of six maize cultivars in the region of the coastal tablelands of Alagoas State, Brazil. The experimental design was randomized complete block, with five replications and six treatments. Six maize cultivars, three varieties (Jaboatão, Batité...

Author(s): Cicero Teixeira Silva Costa, Iêdo Teodoro, Samuel Silva, Fernando Nobre Cunha, Marconi Batista Teixeira, Frederico Antonio Loureiro Soares, Wilker Alves Morais, Nelmício Furtado da Silva, Flávio Henrique Ferreira Gomes and Lays Borges dos Santos Cabral

Yield and growth characteristics of Cowpea (Vigna unguiculata) as affected by prior heat stress and nutrient addition

October 2016

In the tropics, high temperatures and nutrient inaccessibility are often the most limiting factors affecting plant growth and final crop yield. However, it remain incomprehensible the actual impact of simultaneous interaction of prior heat stress and nutrient addition on growth and yield of cowpea plant, knowing that  cowpea plant is an important grain legumes for over 200 million people in dry savanna of tropical...

Author(s): Olusanya A. OLATUNJI, Gideon O. OKUNLOLA, Emmanuel T. KOMOLAFE , Akinjide M. AFOLABI, Akash TARIQ, and Ademayowa A. ODELEYE

Chemical composition and antioxidant capacity in edible biomass of tagasaste (Chamaecytisus proliferus var. palmensis)

October 2016

Tagasaste (Chamaecytisus proliferus (L. fit.) Link var. palmensis (Christ) Hansen and Sunding is a perennial fodder shrub naturalized in a range of environments for its valuable forage traits. This research was aimed at evaluating the seasonal variation in chemical composition, bioactive compounds and antioxidant properties in edible biomass components (leaves, twigs, flowers, and pods) of tagasaste grown in a...

Author(s): Leonardo Sulas, Simone Canu, Antonio Melchiorre Carroni, Giovanni Antonio Re, Mauro Salis and Giovanna Piluzza

Trichoderma-bean interaction: Defense enzymes activity and endophytism

October 2016

Biotic inducing agents such as Trichoderma spp. are an alternative for the induction of resistance by activating defense mechanisms of plants. This work aimed to study the interaction between bean and Trichoderma spp. evaluating the effects of the induction of resistance in bean through the defense enzymes activity and ability to endofitism. The experimental was design in randomized blocks, with four replications, being...

Author(s): Omari Dangelo Forlin Dildey, Laline Broetto, Bruna Broti Rissato, Edilaine Della Valentina Gonçalves-Trevisoli, Sidiane Coltro-Roncato, Emanuele Guandalin Dal’Maso, Cristiane Claudia Meinerz, Nicanor Pilarski Henkemeier, José Renato Stangarlin, Odair José Kuhn and Tulya Fernanda Barrientos Webler

Development of an automated system of aeration for grain storage

October 2016

Stored grain should be preserved as much as possible during storage process, because of the occurrence of chemical, biochemical, physical and microbiological changes. The grain storage process consists of storing this material for a later use after a certain period. This study aims at to develop a prototype for grain aeration; to develop a software to control aeration strategies; and to evaluate the development of...

Author(s): Arlindo Modesto Antunes, Ivano Alessandro Devilla, Antônio Cruvinel Borges Neto, Beethoven Gabriel Xavier Alves, Guiliano Rangel Alves and Mateus Morais Santos

Effect of Allium sativum (garlic) extract on the growth and nodulation of cowpea (Vigna unguiculata) and groundnut (Arachis hypogea)

October 2016

It has been demonstrated that symbiotic N2 fixation enhances soil fertility and productivity as well as increases carbon sequestration and nutrient conservation. Green house experiments were conducted to ascertain the effect of garlic extract on the nodulation of cowpea and groundnut plants. Different concentrations of the extract (20, 40, 60 and 80%), were applied to the plant at 2 weeks after planting. Both legumes...

Author(s): Martina T. V. Adeleke

Agronomic performance of local and introduced plantains, dessert, cooking and beer bananas (Musa spp.) across different altitude and soil conditions in eastern Democratic Republic of Congo

October 2016

Agronomic performances of local and exotic Musa species were evaluated across seven agro-ecologies in Eastern Democratic Republic of Congo. Generally, all the cultivars performed well. Mean bunch yields varied between 11 and 42 kg across different use groups and agro-ecologies. Introduced cultivars had higher or comparable yields to the local cultivars across agro-ecologies. The exotic beer cultivar ‘NARI...

Author(s): M. Kamira, J. Ntamwira, C. Sivirihauma, W. Ocimati, P. van Asten, L. Vutseme and G. Blomme

Germination capacity of some halophytic plants species under increasing salinity

October 2016

In Tunisia, more particularly in semiarid and arid areas, the drought accentuated by the surface evaporation of water lead to gradual increase in salinity of the soil which a major hurdal in development of vegetation. In these highly salted ecosystems, some plants are growing naturally; however, various species show different tolerance levels to salinity during their development. Seed germination is the stage which is...

Author(s): Hichem Hajlaoui†, Samira Maatallah†, Nawel Nasri and Hafedh Nasr

Seeding density of Brachiaria ruziziensis intercropped with grain sorghum and effects on soybean in succession

October 2016

Sorghum is an alternative crop to produce grains in the off-season in Brazilian Cerrado and the intercropping with Brachiaria species enable to produce dry matter on the soil surface for a longer time. However, there is limited information on Brachiaria ruziziensis seed density to be applied to intercropping with sorghum without causing decreases in sorghum grain yield. The objective of the study was to evaluate the...

Author(s): Larissa Pacheco Borges, Alessandro Guerra da Silva, Maria Mirmes Paiva Goulart, Itamar Rosa Teixeira, Gustavo André Simon and Kátia Aparecida de Pinho Costa

Efficient control of conidium germination, mycelial growth and early blight in tomato in vitro with essential oils under farm conditions

October 2016

The aim of this work was to find a natural product and efficient dose to control early blight in tomato crop in agro-ecological or conventional agriculture system. The treatments were essential oils from Cymbopogon citratus, Eucalyptus citriodora, Piper hispidinervum, Cymbopogon martini, Rosmarinus officinalis, Syzygium aromaticum, Cinnamomum zeylanicum, Mentha piperita, Citrus sinensis var. dulcis, and Melaleuca...

Author(s): C. L. M. Abreu, C. I. M. A. Feres,, E. L. Furtado, L. C. Ming, M. O. M. Marques , R. S. Acáciod, A. Riffel, H. F. Goulart, A. E. G. Santana, F. S. Bernardes and F. L. A. Câmara

Effect of hydro-priming duration on germination and early seedling growth of rapeseed under salinity stress

October 2016

A laboratory experiment was carried out to assess the possibility of decreasing the negative effects of salinity on seed germination and early seedling growth of canola by hydro-priming of seeds. A 7×5 factorial experiment based on completely randomized design was employed to compare the treatments. Seed priming comprised 0.0, 4.0, 8.0, 12.0, 16.0, 18.0 and 24.0 h seeds soaking in distilled water, and salinity...

Author(s): Seyed Nader Mosavian and Mahjoobeh Esmaeilzade-Moridani

Seeding rate and physiological quality of dual purpose wheat seeds

October 2016

Wheat dual purpose (Triticum aestivum L.) has elevated biomass production, high tillering potential, long vegetative stage, short reproductive period. Therefore, this study aim to reveal the seeding rates effect on physiological attributes of wheat dual purpose seeds grown in three agricultural crops, and identify a population management strategy and check the response stability of the traits in southern Brazil. The...

Author(s): Vinícius Jardel Szareski, Ivan Ricardo Carvalho, Maicon Nardino, Gustavo Henrique Demari, Alan Junior de Pelegrin, Mauricio Ferrari, Diego Nicolau Follmann, Tiago Corazza da Rosa, Etiane Skrebsky Quadros, Tiago Pedó, Paulo Dejalma Zimmer, Velci Queiróz de Souza and Tiago Zanatta Aumonde

Comparison of mapping soybean areas in Brazil through perceptron neural networks and vegetation indices

October 2016

This study aimed to develop and evaluate the Artificial Neural Networks (ANNs) settings to differentiate and estimate areas of soybean by employing the vegetation index with and without time series. Study area comprises the state of Paraná, South Brazil. The images used to process the ANN were Normalized Difference Vegetation Index (NDVI), Perpendicular Vegetation Index (PVI) and Enhanced Vegetation Index (EVI)...

Author(s): Carlos Antonio da Silva Junior, Marcos Rafael Nanni, Paulo Eduardo Teodoro, Guilherme Fernando Capristo Silva, Mendelson Guerreiro de Lima and Marta Eri

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