African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6752

AJAR Articles

Processing, storage methods and quality attributes of spices and aromatic herbs in the local merchandising chain in Benin

September 2016

This study investigated the processing, the commercialization and the consumption practices of spices and aromatic herbs in different districts of Benin. The investigation was done through a survey using a questionnaire. The questionnaire mainly focused on the socio-cultural profile of actors, the spices and aromatic herbs commercialized, the processing techniques, the quality attributes according to the actors, the...

Author(s): Akpo-Djènontin D. O. O., Anihouvi V. B., Vissoh V. P., Gbaguidi F. and Soumanou M.

Soybean yield and productivity components according to spacing and population density

September 2016

Soybean has great importance in world economy. Their productivity is influenced by numerous factors like nutrition, pests, diseases, genetic factors, and weather and plant density to name a few, and the spatial distribution of plants per area a resource to increase productivity the aim of this study was to evaluate main items of productivity and soybean yield with different arrangements of plants with spacing (0.25 and...

Author(s): Itamar Ferreira da Silva, Eloisa Lorenzetti, Suzana Ferreira da Silva, Tânia Vezzaro, Otacir Hirsch, Marta Sabrina Nimet, Vanessa Faria de Oliveira, Juliana Yuriko Habitzreuter Fujimoto, Diego Algusto Fois Fatecha, Eliana Peliçon Pereira and Alfredo José Alves Neto

Genetic divergence between soybean cultivars grown in the Cerrado in Southwestern Piauí, Brazil

September 2016

Knowing plant traits and their contribution to genetic diversity is key to identify favorable genotypes and breed new cultivars. This article aims to describe and quantify the genetic divergence between soybean cultivars grown in the Cerrado in southwestern Piauí, Brazil, and identify favorable genotypes for hybridization. To do this, 13 soybean cultivars were grown in the region and assessed concerning...

Author(s): Tiago de Oliveira Sousa, Daniela Vieira Chaves, Elaine Heberle, José Hamilton da Costa Filho, Farley Silva Santana, Carlos Roberto Barbosa Monteiro, Rodrigo de Sá Ferreira and Maria Eugenia Lima dos Santos

Corn hybrid seed damage as a function of metering device in corn planting

September 2016

Seed quality control is becoming increasingly important, since the market is increasingly competitive. The planting operation process should occur in order to avoid mechanical damage, which may affect the seed quality. This study aimed to evaluate the effect of mechanical damage caused by meter mechanisms (mechanical and pneumatic) on physical and physiological quality of corn seeds. The experiment was carried out in a...

Author(s): Aline C. Serrano, Carlos Eduardo A. Furlani, Rafael S. Bertonha, Fabio A. Cavichioli and Cristiano Zerbato

Quali-Quantitative study of biogas production from bio-digestion of cutting poultry

September 2016

The purpose of this study was to evaluate the biogas production and the potential production obtained with the anaerobic digestion of cutting poultry carcasses. The carcasses were used to supply batch digesters with 8 liters of capacity of fermentation material. To perform this process, analysis content of total solids (TS) and volatile solids (VS) were performed. We used a system of three treatments, TRA (Treatment A)...

Author(s): Andrei Antonio Mondardo, Samuel Nelson Melegari de Souza, Solles Augusto Rovaris, Claudinei de Almeida, Glaucio José Gomes, Simoni Spohr Venzon, Reginaldo Ferreira Santos and Jair Antonio Cruz Siqueira

Morphology and biomass yield of forage cactus under mineral fertilization in organic soil

September 2016

The objective of this study was to evaluate the morphological characteristics and yield of the biomass of forage cactus in mineral fertilizers in organic soil. The experiment was conducted in vases, in the open in the experimental area of the Federal University of Campina Grande - UFCG. The experimental design was completely randomized in a factorial scheme 3×2 with four replications in which factors consisted of...

Author(s): Patrícia Ferreira da Silva, Rigoberto Moreira de Matos, Vitória Ediclécia Borges, José Dantas Neto and Maria Sallydelândia  Sobral de Farias

Cadmium effects on sunflower growth and mineral nutrition

September 2016

A hydroponic greenhouse study was carried out to evaluate the effects of increasing cadmium (Cd) concentration on plant growth, mineral nutrition and Cd distribution of H-250 sunflower genotype. Exposure to increasing Cd concentrations reduced plant biomass by 40, 34, 47 and 42% of the total, leaves, stem and roots dry weights as compared to the control. Regardless of the treatment most of Cd uptake by the genotype was...

Author(s): Miriã Maria Almeida de Abreu Silva Ferreira, Jorge Antônio Gonzaga Santos, Silvany Cardim Moura, Claudia Brito de Abreu, Marcela Rebouças Bomfim and André Dias de Azevedo Neto

Agronomic efficiency of Bradyrhizobium in peanut under different environments in Brazilian Northeast

September 2016

Several legumes have natural ability to associate with nitrogen-fixing bacteria known as rhizobia. The efficiency of this association depends on the plant and bacterial genotype and the edaphoclimatic conditions. Peanut is a tropical legume able to associate with a wide range of rhizobia and the selection of efficient bacteria is important to increase the nitrogen fixation in this crop. In order to investigate the...

Author(s): Ciro Igor Torres Sizenando, Jean Pierre Cordeiro Ramos, Paulo Ivan Fernandes-Júnior, Liziane Maria de Lima, Rosa Maria Mendes Freire and Roseane Cavalcanti dos Santos

Properties, classification, genesis and agricultural suitability of soils in a semiarid pediplain of North Cameroon

September 2016

The aim of the study was to determine the morphological and physicochemical characteristics, classification, genesis and suitability of soils developed on pediplain around granitic hills in Minawao in the Far North region of Cameroon. The studied soil profile had 450 cm thick. It is composed of two subsections formed by erosion and cumulization. The upper subsection classified as typic ustifluvents clayey...

Author(s): Désiré Tsozué and Oumarou Yakouba

The effects of sewage sludge, mineral and organic fertilizers on initial growth of Urochloa brizantha cv Marandu (Hochst. ex A. Rich.) R.D Webster

September 2016

The application of biosolids on agricultural soils is a procedure used by municipalities and private companies to dispose, purposefully or inadvertently, of residue. This study evaluated the effects of limed sewage sludge and inorganic or organomineral fertilizers on the chemical properties of red latosol and the contents of chlorophyll A and B in the fresh and dry matter of Urochloa brizantha cv Marandu. The...

Author(s): Joaquim Caros de Resende Júnior, Reginaldo de Camargo, Regina Maria Quintão Lana, Amilton Alves Filho and Ana Luisa Alves Matos

Technological parameters and economic analysis of sugarcane cultivated under irrigation depths for ethanol production in Santa Maria-RS, Brazil

September 2016

This study aimed to perform economic analysis and evaluate the effect of technological parameters on plant and ratoon sugarcane under irrigation depths for ethanol production. Treatments were irrigation of 30, 60, 90, and 120% of ETc and a control treatment (no irrigation). The experimental design was a randomized block with six repetitions. We used a drip irrigation system with management based on crop...

Author(s): Helena Maria Camilo de Moraes Nogueira, Marcia Xavier Peiter, Adroaldo Dias Robaina, Richard Alberto Rodríguez Padrón, Marta Von Ende, Antonio Luiz Fantinel and Cicero Urbanetto Nogueira

The efficiency of wheat yields by nitrogen dose and fractionation

September 2016

The biomass productivity and wheat grains efficiency is determined by nitrogen dose adjustment (full or fractioned), environmental conditions, and cropping system. The aim of this study was to improve the efficiency of N-fertilizer usage on wheat to maximize the biomass productivity and grain yield by adjusting the full or fractioned nitrogen dose in favorable and unfavorable year conditions, in succession systems with...

Author(s): Ana Paula Brezolin, José Antonio Gonzalez da Silva, Fabricia Carneiro Roos Frantz, Manuel Osorio Binelo, Antonio Carlos Valdiero, Cristiano Mathias Zimmer, Rubia Diana Mantai, Anderson Marolli, Osmar Bruneslau Scremin and Gustavo Mazurkievicz

Field assessment of baits for frugivorous flies (Tephritidae and Lonchaeidae)

September 2016

Hydrolyzed proteins are used as attractive agents in McPhail traps for monitoring of fruit flies (Tephritidae). There has been no defined role for monitoring of insects belonging to the Lonchaeidae family. Currently, there is a great concern in using most efficient and low-cost attractive materials. Thus, this study aimed at assessing the attractiveness of solid and liquid baits in capturing of frugivorous flies...

Author(s): Olívia Oliveira dos Santos, Sávio de Oliveira Ribeiro, Maria Aparecida Leão Bittencourt, Maria Aparecida Castellani, Raquel Pérez-Maluf, Ana Elizabete Lopes Ribeiro and Aldenise Alves Moreira

Irrigation under different soil surface wetted areas and water depths for banana cv. Grand Naine

September 2016

The use of different water depths and soil surface soil surface wetted areas by micro-sprinkler irrigation systems results different wetted soil volumes and evapotranspiration conditions, which may cause changes in fruit production quality and quantity. The objective of this study was to evaluate yield, fruit physical characteristics and leaf area of ​​banana cv. Grand Naine under different irrigation depths and...

Author(s): Eugênio Ferreira Coelho, Marcelo Rocha dos Santos, Édio Luis da Costa, Sérgio Luiz Rodrigues Donato and Polyanna Mara Oliveira

Effect of egg storage temperature and fumigation on hatchability of Cobb 500 and Hubbard broiler strains

September 2016

Hatchability of Cobb 500 and Hubbard broiler strain eggs subjected to different levels of egg storage temperature and fumigation was studied at Debre Zeit Agricultural Research Center, Ethiopia. The different egg storage temperature levels employed were 10, 16 and 23°C and fumigation levels employed were fumigated and unfumigated. Fertility and hatchability were tested during the experimental period. Fertility is...

Author(s): Melaku Woldeyohannes Bekele and Mengistu Urgea Leta

Antimicrobial action against of Macrophomina phaseolina and control of the grey stem in soybean by homeopathic remedies Nosode and Sulphur

September 2016

The aims of the study were to evaluate the control of botrytis in the soybean stem, spraying homeopathic solutions of Sulphur and Nosode of Macrophomina phaseolina in the dynamizations 6, 12, 24, 36 and 48CH. As additional treatment, we used distilled water and hydroalcoholic solution at 30% ethanol. In vitro tests were performed so as to analyze the number of micro-sclerotia and mycelial growth of the fungi, and in...

Author(s): Eloisa Lorenzetti, José Renato Stangarlin, Elizana Lorenzetti Treib, Anderson Luis Heling, Sidiane Coltro-Roncato, Jeferson Carlos Carvalho, Lívia Hoepers, Bruna Broti Rissato, Jéssica Caroline Coppo, Cristiani Belmonte, Odair José Kuhn and Itamar Ferreira da Silva

Soil fauna dynamics affected by decomposition of different legume combinations in alley cropping systems in São Luís, Maranhão, Brazil

September 2016

The objective of this study was to evaluate the temporal composition of epigeous fauna during decomposition of different legume combinations in alley cropping systems. Two legume species with high quality waste Leucaena leucocephala (Leucaena) and Cajanus cajan (Pigeon pea), and two species of low quality waste Clitoria fairchildiana (Sombrero) and Acacia mangium (Acacia), were combined forming six treatments: Sombrero...

Author(s): Nárgila de Moura, Raimunda Nonata de Lemos, João Thiago R. de Sousa, Albéryca Stephany de Ramos, Ester do Amaral, Emanoel de Moura and Mario Luiz Mesquita

Analysis of levels and determinants of technical efficiency of wheat producing farmers in Ethiopia

September 2016

Wheat is one of the most important cereal crops in Ethiopia, ranking fourth in total cereals production (16%) next to maize, sorghum and teff. Despite its potential for wheat grain production, Ethiopia falls short of being self-sufficient in wheat, and is currently a net importer of wheat grain. This study examines levels of and determinants of technical efficiency of wheat producing farmers in Ethiopia. Data was...

Author(s): Kaleb Kelemu and Workneh Negatu

Salinity in irrigation water with organic fertilizer application on growth of castor bean

September 2016

Plants grown under salt stress are adversely affected, however, it has been suggested the use of organic inputs in order to mitigate the deleterious effects of salinity. As a result, it aimed to evaluate the effect of different electrical conductivities of irrigation water due to the application of organic fertilizers in the cultivation of castor bean. The experiment was conducted in greenhouse located at...

Author(s): Mario Leno Martins Véras, José Sebastião de Melo Filho, Lunara de Sousa Alves,         Danila Lima de Araujo, Toni Halan da Silva Irineu, Thiago Jardelino Dias, Raimundo Andrade and Nelto Almeida Sousa

Effect of temperature on the development and survival of immature stages of the peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae)

September 2016

The Peach fruit fly (PFF), Bactrocera zonata (Saunders) is known as a key pest of fruits in Egypt. The effect of temperature on the development and survival of the Peach fruit fly (PFF), Bactrocera zonata (Saunders) (Diptera: Tephritidae) from egg to adult was studied to understand the geographical pattern of occurrence of these fruit fly[N1] . Studding carried out in laboratory under four different constant...

Author(s): Mahmoud Abbas Ali

Adaptability and stability parameters for potassium and calcium contents and grain yield in cowpea lines

September 2016

The aim of the present study is to estimate the adaptability and stability of K and Ca contents, and grain yield in cowpea lines for release as new cultivars. Forty-four inbred lines and cultivars were assessed in seven sites of the Brazilian semi-arid region. Significant statistical differences were observed in the treatment, environments and environment treatment interaction mean squares for all variables. The methods...

Author(s): Danillo Olegario Matos da Silva and Carlos Antonio Fernandes Santos

Phosphorus fractionation in sediments of the ypacarai lake basin

September 2016

The aim of this paper was to determine the phosphorus fractions in the sediment, at different points of the tributaries, on the lake, and on the Ypacarai lake basin. There was a collection of 23 bottom sediment (SF) samples of 0 to 0.05 m of tributaries of the Ypacarai lake basin and 10 samples from the lake. The sand, silt and clay fractions and textural class were determined; in addition to the P forms, grouped in...

Author(s): Diego Algusto Fois Fatecha, Jimmy Walter Rasche Alvarez, Nestor Cabral, Jazmin Guadalupe Ojeda Rojas, Jéssica Caroline Coppo, Alfredo José Alves Neto, Eloisa Lorenzetti, Cesar Kent Hoshiba Watanake, Bruna Broti Rissato and Cristiani Belmonte

Use of Bacillus spp. as growth promoter in carrot crop

September 2016

Growth promoting rhizobacteria may increase the yield of some crops. Several microbial products that stimulate plant growth have been marketed. Therefore, the objective of this study was to evaluate the effect of bacteria from Bacillus genera on the production of commercial carrot roots (Daucus carota L.) in field conditions. The following isolates: SF 264 (Bacillus spp.), SF 268 (Bacillus spp.) and commercial...

Author(s): Junia Maria Clemente, Carine Rezende Cardoso, Bruno Sérgio Vieira, Iara da Mata Flor and Robson Luz Costa

Inorganic solute accumulation in noni (Morinda citrifolia Linn) under salt stress during initial growth

September 2016

Noni (Morinda citrifolia) is a fruit species which is well adapted to different soil and climate conditions, and may be a good option for farmers in arid and semi-arid regions. To evaluate the tolerance of noni plant in the initial phase to salinity and the accumulation of inorganic solutes in its organs, an experiment was carried out in a greenhouse under hydroponic system. The experimental design was completely...

Author(s): Alide Mitsue Watanabe Cova, André Dias de Azevedo Neto, Rogério Ferreira Ribas, Hans Raj Gheyi and Renata Velasques Menezes

Genetic variability and correlation analysis of rice (Oryza sativa L.) inbred lines based on agro-morphological traits

September 2016

In order to evaluate genetic variability of agro-morphological traits and also determine the correlation between grain yield with its components in rice lines, 17 recombinants inbred lines, their parents and a check variety were grown in research station of Africa rice center in Benin republic during two consecutive years 2013 and 2014. The experiments were laid out in a randomized complete block design with four...

Author(s): Abdourasmane K. Konate, Adama Zongo, Honore Kam, Ambaliou Sanni and Alain Audebert

Decomposition rate of crambe phytomass on Haplortox under different soil management practices

September 2016

The aim of this study was to assess the decomposition rate of crambe straw under different soil management practices based on no-tillage system. The experiment was carried out at the experimental area of the Agronomic Institute of Paraná - IAPAR, regional center of Santa Tereza do Oeste, Paraná, Brazil. Treatments consisted of four soil management practices: Traditional No-tillage System - TNTS –...

Author(s): Marcos Felipe Leal Martins, Deonir Secco, Luiz Antonio Zanão Junior, Luciene Kazue Tokura, Reginaldo Ferreira Santos, Samuel Nelson Melegari de Souza, Aracéli Ciotti de Marins and Tiago Roque Benetoli da Silva

Fermented milk drink flavored with Murici pulp added of passion fruit bark flour

September 2016

This study aimed to evaluate the physicochemical parameters, antioxidant activity, color and sensory profile of fermented milk drink with murici and passion fruit bark flour (FCM). Four milk drink formulations were processed: 0% FCM + 5% murici pulp (Treatment 1 - control); 0.5% FCM + 5% murici pulp (Treatment 2); 1.0% FCM + 5% murici pulp (Treatment 3) and 1.5% FCM + 5% murici pulp (Treatment 4). The scanning electron...

Author(s): Gabriela Vieira Leal Couto, Marco Antônio Pereira da Silva, Hemilaine Campos Pádua, Diene Gonçalves Souza, Ligia Campos de Moura, Geovana Rocha Plácido, Márcio Caliari, Maria Siqueira de Lima, Luiz Eduardo Costa do Nascimento, Nayane Matias Silva, Bheatriz Silva Morais de Freitas

Soybean seed treatment with micronutrients, hormones and amino acids on physiological characteristics of plants

September 2016

The study is aimed at contributing to the research on physiological effects of seed treatment with micronutrients, hormones and amino acids. Two experiments were conducted, first in a greenhouse (partially controlled conditions) and second in the field at Patos de Minas, MG, Brazil. Four seed treatments were arranged in a randomized block design (control; micronutrients Zn, Mn, B, Mo, Ni and Co; hormones: indole butyric...

Author(s): Luís Henrique Soares, Durval Dourado Neto, Evandro Binotto Fagan, Walquíria Fernanda Teixeira, Marina Rodrigues dos Reis and Klaus Reichardt

Effect of humic substances and nitrogen fertilization on yellow passion fruit cultivation in the Brazilian semiarid region

September 2016

Fruit production of yellow passion fruit (Passiflora edulis Sims. f. flavicarpa Deg.) is affected by several factors, such as climate, soil and agricultural practices, including fertilization and irrigation, which are essential for high crop yield. Thus, an experiment was carried on to evaluate the effect of humic substances and different nitrogen doses supplied through fertigation on fruit production of yellow passion...

Author(s): Roberto Lustosa Silva, Ítalo Herbert Lucena Cavalcante, Augusto Miguel Nascimento Lima, Luirick Félix Silva Barbosa, Clériton de Souza, Erivan dos Santos Sousa, Thiago Bruno da Silva Lessa and Lourival Ferreira Cavalcante

Selectivity and efficiency of herbicides in warm season turfgrass varieties

September 2016

Weed infestations and the few post-emergent control alternatives available are some of the main problems in the management of ornamental and sports lawns. Given the exposed, the study aims to evaluate the selectivity of five herbicides to four grass varieties: Paspalum notatum (bahia grass), Cynodon dactylon (bahama grass- ITG6), Zoysia japonica (japanese lawn grass) and Zoysia japonica (imperial – ITG5), as well...

Author(s): Danilo C. M. da Silva, Anne E. Cesarin, Pedro F. R. B. Martins, Daniel P. Ferrarezi, Pedro L. da Costa A. Alves, and Kathia F. L. Pivetta,

Nitrogen accumulation and productivity of green corn in function of ways and seasons of top-dressing nitrogen fertilizer application

September 2016

Nitrogen is one of the nutrients required in large amounts by plants and mostly influences corn yield. With the objective of evaluating the best timing and methods of N fertilizer application in topdressing on corn, this experiment was carried out in Ipameri County, State of Goiás, Brazil, on a Red Yellow Latossol (Ferralsol). The treatments were distributed in a randomized complete block design with four...

Author(s): João Paulo de Morais Oliveira, Adilson Pelá, Dalton Ribeiro, Bruna Santos de Oliveira, Leandro Mariano da Silva, Jéssica Ferreira Silva and Patrícia Souza da Silveira

Response of broccoli to sulphur application at topdressing in the presence or absence of organic compost at planting

September 2016

The literature has confirmed the efficacy of sulphur (S) when growing Brassicaceae. However, there are no studies with this nutrient on broccoli. Therefore, the aim of this study was to evaluate the response of broccoli (hybrid Avenger) to sulphur rates applied at top dressing in the presence or absence of organic compost at planting. The experimental design was a randomized complete block, with ten treatments (5 x 2...

Author(s): Carla Verônica Corrêa, Aline Mendes de Sousa Gouveia, Bruno Novaes Menezes Martins Ana Emília Barbosa Tavares, Natália de Brito Lima Lanna, Antonio Ismael Inácio Cardoso and Regina Marta Evangelista

Response of Chinese cabbage to source and rate of N topdressing application in tropical soil in Brazil

September 2016

The aim of this study was to evaluate the response of Chinese cabbage (hybrid Deneko) to source and rate of N topdressing application. The experimental design was a randomized complete block, consisting of nine treatments (4x2+1 factorial design), with five replications, that is, four rates of N (54, 108, 162 and 216 kgha-1); two sources of N (urea and ammonium sulphate); and a control (without N topdressing). The...

Author(s): Carla Verônica Corrêa, Bruno Novaes Menezes Martins, Aline Mendes de Sousa Gouveia, Ana Emília Barbosa Tavares, Natália de Brito Lima Lanna and Antonio Ismael Inácio Cardoso

Physiological quality of second crop soybean seeds after drying and storage

September 2016

This work was carried out with the goal of determining the immediate and latent effects of different temperatures of drying air on the physiological quality of soybean seeds produced during the second crop. The seeds, which were collected close to their physiological maturity and had a moisture content of approximately 23% (w.b.), were exposed to different drying temperatures (40, 50, 60, 70, and 80°C) until their...

Author(s): Cesar Pedro Hartmann Filho, Andre Luis Duarte Goneli, Tathiana Elisa Masetto, Elton Aparecido Siqueira Martins and Guilherme Cardoso Oba

Logistics and storage of soybean in Brazil

September 2016

Soybean is one of the most important cultures harvested in the world, and Brazil is ranked the second major producer and the top exporter of this oilseed. Brazil presents good edaphoclimatic conditions for soybean cropping, it has a strong research structure and has capacity to enhance its cropping area, and however, the faulty infrastructure in its own terrain hinders logistic operations for soybean flow and...

Author(s): Fernando Castro de Oliveira, Paulo Henrique Moreira Coelho, Maurílio de Sousa Neto, André Cirilo de Souza Almeida, Fenelon Lourenço de Sousa Santos, João Paulo de Morais Oliveira, Bruna Santos de Oliveira, Itamar Rosa Teixeira and André José de Campos

Economic evaluation of milk production in family farm, with cattle feed with soybean meal

August 2016

Accounting can play an important role as a management tool, through information to enable planning, control and decision making, turning farms into companies with the capacity to monitor the evolution of the sector, especially with regard to the objectives and functions of financial management, cost control, crop diversification and comparison of results. Soybean meal, half-whole can be an excellent alternative to...

Author(s): Cássio Renê Duminelli, Reginaldo Ferreira Santos, Jair Antônio Cruz Siqueira, Natasha Barchinski Galant, Luciene Kazue Tokura, Carlos Eduardo Nogueira, Samuel Nelson Melegari de Souza and Wellington Lucas Tondo

Evaluation of highland maize at Bule hora District of Southern Oromia, Southern Ethiopia

August 2016

In order to evaluate the performance of highland maize, an experiment was conducted at Bule hora district of southern Ethiopia by introducing five highland maize from Ambo Plant Protection Research Center and Bako Agriculture Research Center, during the main cropping season of 2010 and 2011. The experiment was carried out in a randomized complete block design with three replications. The data were recorded on plant...

Author(s): Tolessa Taye, Natol Bekele and Yonas Shimalis

Sunflower seed treatment with growth inhibitor: Crop development aspects and yield

August 2016

Sunflower is one of the most important oleaginous crops designated for edible oil production in the world. However, Brazilian growers still do not have enough knowledge, and technical expertise, for expanding the sunflower crop yield through the adoption of new technologies, like the utilization of plant growth regulators (paclobutrazol). The aim of this work was to evaluate the effects of different doses (0, 50, 100,...

Author(s): Domingos da Costa Ferreira Júnior, Jorge Luiz Gonçalves Machado, Polianna Alves Silva, Monique Ferreira de Souza and Reginaldo de Camargo

Nitrate and potassium leaching and the response of the common bean to different irrigation blades

August 2016

The aim of this study was to determine the effects of increasing irrigation levels on the movement of nitrate and potassium in clay soil and on crop yields for the common bean irrigated by central pivot under Brazilian Cerrado conditions. The experiment was conducted in Urutaí, Goiás, Brazil, in Dystrophic Oxisol clayey soil in 2014. Four irrigation regimes were tested, which were equivalent to 50, 100,...

Author(s): Walter da Costa Mendes, José Alves Junior, Paulo César Ribeiro da Cunha, Anderson Rodrigo da Silva, Adão Wagner Pêgo Evangelista and Derblai Casaroli

Performance of a water ram built with disposable bottles

August 2016

The hydraulic ram is a device that makes use of the energy of a “water fall” to raise part of the water flow to a higher elevation by merely using the energy of the water hammer. Even though a small water volume is compressed, the device may be a solution for water supply on family farms, for home use, animal drinking troughs and watering of vegetables. Current study evaluated the performance of a hydraulic...

Author(s): José Joaquim de Carvalho, João Carlos Cury Saad, Nelmício Furtado da Silva, Fernando Nobre Cunha, Marconi Batista Teixeira, Melissa Selaysim di Campos and Rogério Zanarde Barbosa

Estimation of the flower buttons per inflorescences of grapevine (Vitis vinifera L.) by image auto-assessment processing

August 2016

The aim of this research is to develop a reliable tool by a special method, combining image processing based on watershed algorithm, and a predictive model to estimate automatically the flowers number per inflorescence. Eighty images of Vitis vinifera L. inflorescence (the Cardinal cultivar) were processed. Watershed algorithm was used for the image processing and this was followed by statistical analysis that provides...

Author(s): Radhouane Benmehaia, Derdour Khedidja and Mohamed El Moncef Bentchikou

Induction of genetic variability and plant development in palisade grass evaluated in M2 mutants

August 2016

The objective of this study was to evaluate the induction of genetic variability and plant development of palisade grass (Urochloa brizantha L.) M2 mutants in acclimatization to subtropical climate condition. The mutagenic agent methyl methanesulfonate (MMS), at a dosage of 0.5%, was used to induce mutation in 4,000 seeds of the cultivar Marandu. Thirty five plants survived after the induction of MMS mutagen agent....

Author(s): Diego Nicolau Follmann, Velci Queiróz de Souza, Maicon Nardino, Ivan Ricardo Carvalho, Denise Schmidt, Daniela Meira, Carine Meier, Mauricio Ferrari, Alan Junior de Pelegrin and Vinícius Jardel Szareski

Physical and hydraulic properties of a Latosol influenced by land use and management changes

August 2016

Changes to soil use can modify the soil’s physical and hydraulic properties, affecting its potential for productivity. This study aimed to characterize the physical and hydraulic properties of a clayey Dystroferric Red Latosol under the following land uses: conventional tillage (CT), direct drilling systems (DD), and native forest (NF). The study was conducted in Londrina (PR), Brazil, (23°23′ S,...

Author(s): Angela Beatriz F. da Costa, Cezar Francisco Araujo-Junior, Paulo Henrique Caramori, Inês Fumiko Ubukata Yada and Cristiane de Conti Medina

Agroclimatic risk of development of Diaphorina citri in the citrus region of Nuevo Leon, Mexico

August 2016

Diaphorina citri is the insect vector of the disease, Huanglongbing (HLB) which is the most devastating citrus disease worldwide. It is necessary to identify potential risks; this can be done based on favorable thermo-pluviometrical conditions for the vector. The present study aims to identify potential risks in the Nuevo Leon citrus region in areas, which have not yet been devastated by the citrus disease. The presence...

Author(s): Guadalupe Rebeca Granados Ramirez, Helga Cecilia Penelope Barba Medina and Teresa de Jesus Reyna Trujillo

Forage yield components of various alfalfa (Medicago sativa L.) cultivars grown on salt-affected soil under rainfed and irrigated conditions in a Mediterranean environment

August 2016

In Algeria, the area allocated to crop fodders in particular, the alfalfa (Medicago sativa L.) is very limited as compared to other crops. Some obstacles hinder the development of crops especially in irrigated perimeters. A field experiment was conducted to highlight the adaptation of sixteen (16) alfalfa varieties from different origins (Algeria, Australia, France, Italy, Morocco, Tunisia and USA) to drought, soil...

Author(s): Abed Chedjerat, , Mahfoud M’hammedi Bouzina, Abdelhamid Gacemi and Aissa Abdelguerfi

Nutritional status of soil and plant and nutrient discrimination factor of some irrigated olive orchards at the North West of Egypt

August 2016

A study was conducted during 2014 to 2015 seasons on olive orchards; cultivars (Koroneki, Dolce and Manzanillo) grown on sandy soil under drip irrigation and irrigated with different levels of water salinity from 0.95 to 4.3dS/m-1, in various locations in Cairo-Alexandria road, to evaluate the nutritional status through soil testing and leaf analysis. The soils had very high pH and low organic matter, potassium, iron...

Author(s): S. H. A. Shaaban, A. A. El-Taweel, I. M. S. Osman and M. M. El-Fouly

Yield and vigor of corn seeds under the influence of flooding periods

August 2016

The aim of this work was to characterize the physiological performance and some of the yield attributes of maize seeds in response to periods of temporary flooding. The study was conducted in an experimental design of randomized blocks, with four treatments composed by four replications, being evaluated the germination, the first count of germination, the germination speed index, the thousand seed weight, the number of...

Author(s): Manoela Andrade Monteiro, Geison Rodrigo Aisenberg, Felipe Koch, Guilherme Menezes Salau, João Pedro de Oliveira Behenck, Gustavo Henrique Demari, Vinícius Jardel Szareski, Ivan Ricardo Carvalho, Maicon Nardino, Luis Osmar Braga Schuch, Tiago Pedó, Franscisco Amaral Villela and Tiago Zanatta Aumonde

Estimate of genetic parameters in bioactive and micronutrients compounds of maize

August 2016

Maize (Zea mays L.) has a range of uses, from animal to human feed and can be consumed in nature, or as feedstock material in the preparation of starches, flours, canjicas, breads, beverages and porridges. This study aimed to determine the linear associations, estimates of genetic parameters and heterosis of bioactive and micronutrients compounds in maize. The experimental design was randomized blocks, the treatments...

Author(s): Ivan Ricardo Carvalho, Maicon Nardino, Alan Junior de Pelegrin, Jéssica Fernanda Hoffmann, Sonia Mendonça Poleto, Mauricio Ferrari, Vinicius Jardel Szareski, Daniela Meira, Fabio Clasen Chaves, Velci Queiróz de Souza, Antonio Costa de Oliveira AND Luciano Carlos da Maia

Geographic patterns of phenotypic diversity in sorghum (Sorghum bicolor (L.) Moench) landraces from North Eastern Ethiopia

August 2016

Understanding the pattern of genetic variability is an important component of germplasm collection and conservation as well as the crop’s improvement process including the selection of parents for making new genetic recombination. Nine hundred seventy four sorghum landraces from North Eastern (NE) Ethiopia were evaluated for agro-morphologic characters to assess geographic patterns of phenotypic diversity and to...

Author(s): Haile Desmae, David R. Jordan and Ian D. Godwin,

Enzyme activities and gene expression in dry maize seeds and seeds submitted to low germination temperature

August 2016

The study was conducted on dry maize seed and seed subjected to sub optimal germination temperature. Four lines of maize seeds were used, two were classified as susceptible to low temperature (44 and 54) and two tolerant to low temperature (64 and 91°C). Water content and germination tests were performed at different temperatures (10 and 25°C) to evaluate the physical and physiological quality of maize seeds....

Author(s): Izabel Costa Silva Neta, Édila Vilela de Resende Von Pinho, Viviane Maria de Abreu, Heloisa Oliveira dos Santos, Danielle Rezende Vilela, Renzo Garcia Von Pinho and  Maria Laene Moreira de Carvalho

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