African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6837

AJAR Articles

Micronutrients application on cultivation of sugarcane billets

March 2017

The production of sugarcane is constantly growing in Brazil, and by the 2016/2017 season, it is estimated to have reached 691 million tons. However, productivity has not shown significant increase, this is due largely to inadequate nutritional supplementation of sugarcane plantations, especially the micronutrients. The aim of this study was to evaluate the effect of micronutrients application on the billets and quality...

Author(s): Fernanda Forli, Rafael Otto, Godofredo César Vitti, Diego Wylliam do Vale and Rodrigo Takashi Maruki Miyake

Correlation and path coefficient analysis of top-cross and three-way cross hybrid maize populations

March 2017

Grain yield is a complex quantitative trait that depends on a number of other traits for selection.  This study was carried out to reveal the pattern of association with and contribution of traits to grain yield in two maize populations evaluated in three agro-ecological zones of South-Western Nigeria during the 2014 cropping season. The experiment consisted of 10 top-cross and 10 three-way cross maize hybrids,...

Author(s): Sayo Sesay, David Kolawole Ojo, Omolayo Johnson Ariyo, Silvestro Meseka, Lawrence Stephen Fayeun, Ayoola Oluwaseun Omikunle, and Adebiyi Oyeboade Oyetunde,

Productive and physiological performance of lettuce cultivars at different planting densities in the Brazilian Semi-arid region

March 2017

In regions of high temperature, production and quality in the lettuce is reduced. This requires finding of cultivars that are more adapted to such conditions and adjust the planting density for each cultivar. Consequently, the aim of this study was to evaluate the productive and physiological performance of lettuce cultivars at different planting densities under semi-arid conditions. The experiment was carried out at...

Author(s): Hozano de Souza Lemos Neto, Marcelo de Almeida Guimarães, Jean Paulo de Jesus Tello, Rosilene Oliveira Mesquita, Júlio César do Vale and Benedito Pereira Lima Neto

New type of trap for monitoring banana weevil population

March 2017

The objective of this study was to test the efficiency of a new model of trap by comparing it with the most recommended and used traps by producers to monitor Cosmopolites sordidus in areas of production of plantains. Three types of vegetable traps were tested: cheese, modified roof tile and a new trap called wedge. The experiment was carried out in five areas of production, measuring one hectare each, in which 20 traps...

Author(s): Juliana Silva Queiroz, Marilene Fancelli, Maurício Antonio Coelho Filho, Carlos Alberto da Silva Ledo and César Guillén Sánches

Assessment of post-harvest losses of Warqe food products along the supply chain in Central Ethiopia

March 2017

Post-harvest food loss is a global problem but it is more critical in the food-insecure countries. Food waste occurs at different levels in the food supply chain from production through post-harvest handling to consumption. The presented paper aims at an assessment of post-harvest food loss of warqe foods along the supply chain and identified hot spots of the losses in the chain. Warqe (Ensete ventricosum (Welw)...

Author(s): Ashenafi Chaka Tuffa, Tadesse Kenea Amentae , Tesfaye Balemi and Girma Gebresenbet

Quantification and conservation status of forest fragments in part of Brazilian Atlantic Forest

March 2017

Forest fragments present shapes and sizes that become them more or less susceptible to external factors, which can be measured by means of ecological indexes. The aim of this research was to diagnose conservation status and to quantify forest fragments in part of the Brazilian Atlantic Forest. Forest fragments were mapped and landscape ecology metrics were calculated, including area size, fractal dimension index, and...

Author(s): Hassan Camil David, Gilson Fernandes da Silva, José Eduardo Macedo Pezzopane, Sylvio Péllico Netto, Leonardo Bergantini Pimentel, Emanuel José Gomes de Araújo and Allan Libanio Pelissari

Germination and seed traits variations among West African provenances of Moringa oleifera Lam. (Burkina Faso)

March 2017

Moringa oleifera is a fruit species of economic interest to West African smallholder growers. To generate benefits to poor rural communities, improved knowledge is needed on plantation management and selection of the most reliable seed sources. The aim of the study was to investigate variation in seed traits and germination rates among 12 provenances of M. oleifera from West Africa in the women gardening center named...

Author(s): Madjelia Cangré Ebou Dao, Paulette Taita and Denis Walsh

Supplemental value of leaf based concentrates with Panicum maximum hay on performance of West African dwarf goats

March 2017

A study was conducted to evaluate the effects of supplementation of a leaf based concentrate consisting of a 1:1 leaf mixture of Vernonia amygdalina and Tithonia diversifolia (VATD) as a direct replacement for brewers dried grains (BDG) on feed intake, growth performance and digestibility by West African Dwarf (WAD) goats on a basal diet of Panicum maximum hay. Twenty five growing WAD goats weighing between 8.07 - 9.60...

Author(s): Taye Olurotimi Abegunde, Festus Tope Ajayi, Joseph Folami Olona and Fatima Balogun

Economic viability of the canola crop with nitrogen applied in coverage in no-tillage system in Corbélia-PR, Brazil

March 2017

It is essential for the farmer, to have information of cultural costs when deploying a new crop or new technology. The cost of the study allows decision making for new technologies and use of viable inputs in production (Richetti, 2011; Souza et al., 2012). Zimmermann (2005), when studying technical and economic viability of canola crops, stated that canola is economically viable. The aim of this work was to assess the...

Author(s): Reginaldo Ferreira Santos, Onóbio Vicente Werner, Luciene Kazue Tokura, Deonir Secco, Samuel Nelson Melegari de Souza, Cristiano Fernando Lewandoski, Paulo de Lima Bueno and  Oswaldo Hideo Ando Junior

Effect of pesticides and micro-organisms on earthworm Eisenia fetida (Savigny, 1826)

March 2017

Earthworms might be limited in their activities on soil by pesticides used at important rates in agriculture and human pathogenic micro-organisms introduced in soil by excreta. This study using a modified toxicity filter paper contact test from Organisation for Economic Co-operation and Development (OECD), aimed at assessing the toxicity of six pesticides formulations and six micro-organisms on the earthworm Eisenia...

Author(s): Toualy S. Ouina, Jean-Michel Panoff, Marina Koussémon and Tia J. Gonnety

Effect of combined biotic and abiotic stress on some physiological aspects and antioxidant enzymatic activity in mungbean (Vigna radiate L.)

March 2017

Stomata conductance (gs), Shoot water content (SWC), chlorophyll pigments (chl a,b) and enzymes involved in anti-oxidant photo-protection were determined in two mungbean genotypes (Kawmay-1 and VC2010) under greenhouse conditions. The two genotypes were subjected to water deficit stress (20, 40 and 80% of field capacity) and two root-knot nematode (Meloidogyne javanica) infection levels (non-infected and infected at...

Author(s): Ali A. Alderfasi, Areej A. Alzarqaa, Fahad A. AL-Yahya, Shahira S. Roushdy, Ahmed A. Dawabah and Bushra A. Alhammad

Analysis of the energetic dynamism between solar and wind energy available in the south of Brazil

March 2017

Based on the concept of sustainability, which covers the energy issue as well as its rational use from natural resources, conventional sources do not meet the real requirements of the current production methods. In that context the west region of Paraná state in Brazil presents a vocation for developing projects that involve energy production from alternate sources such as biomass, water, wind energy and solar....

Author(s): Darlisson Bentes dos Santos, Jair Antonio Cruz Siqueira, Carlos Eduardo Camargo Nogueira, Magno Luiz Vidotto, Gilson Debastiani, Armin Feiden, Luiz Antônio Zanão and Flávio Gurgacz

Determination of macaw fruit harvest period by biospeckle laser technique

March 2017

Macaw palm has been stood out as a raw material for the production of bioenergy, because it has high productivity of oil and less emission of polluting waste during combustion, meeting the worldwide demand for sustainable energy sources. The aims of this research were the evaluation of response of the biologic activity measured by the optical technique of the biospeckle laser applied to macaw palm fruits at different...

Author(s): Anderson Gomide Costa, Francisco de Assis de Carvalho Pinto, Roberto Braga Alves Júnior, Sérgio Yoshimitsu Motoike and Luís Manuel Navas Gracia

Postharvest diseases of tomato and natural products for disease management

March 2017

Gray mold and soft rot are the most important postharvest diseases of tomato worldwide. A survey of fresh-market tomato fruit was conducted in Oahu to determine which fungal and bacterial pathogens were most commonly associated with postharvest disease. Alternaria, Botrytis, Colletotrichum, Fusarium, Geotrichum, Mucor, Stemphyllium, Rhizopus and Penicillium were the most frequently isolated fungi and Acetobacter,...

Author(s): Firas A. Ahmed, Brent S. Sipes and Anne M. Alvarez

Impact of cassava starch-alginate based coatings added with ascorbic acid and elicitor on quality and sensory attributes during pineapple storage

February 2017

Pineapple is a tropical fruit of great consume demand. However, due to its high perishability at room conditions, there is noticeable loss of quality postharvest in a short period. In this context, the use of biodegradable coatings is a promising alternative for maintaining postharvest quality. Thus, the aim of this study was to evaluate the use of cassava starch-alginate based biodegradable coatings added with ascorbic...

Author(s): George Henrique Camêlo Guimarães, Renato Lima Dantas, Alex Sandro Bezerra de Sousa, Luciana Gomes Soares, Raylson de Sá Melo, Rosana Sousa da Silva, Renato Pereira Lima, Rejane Maria Nunes Mendonça, Randolph M. Beaudry and Silvanda de Melo Silva

Does the quality of Luehea divaricata seedlings in the nursery correspond to their behavior in the field?

February 2017

The species, Luehea divaricata offers great ecological and timber potential in addition to a wide geographic distribution, although there are few studies comparing seedling production in the nursery with its development in the field. Therefore, this research aimed to evaluate the performance of L. divaricata seedlings produced in different substrates in the nursery, as well as verify if the results obtained influence...

Author(s): Jessé Caletti Mezzomo, Maristela Machado Araujo, Daniele Guarienti Rorato, Daniele Rodrigues Gomes, Adriana Falcão Dutra and Felipe Turchetto

Viability of the use of grass in the cultivation of the medicinal mushroom Ganoderma lucidum

February 2017

The objective of this work was to evaluate the use of ten types of grasses as base substrate for the cultivation of strain GLM-10/02 of Ganoderma lucidum, considering the chemical characterization of the substrates, the biological efficiency (BE), the quantification of fresh and dry basidiomata and the number of basidiomata as evaluation criteria. Ten treatments were outlined, made up with napier or elephant grass...

Author(s): André Luiz Merthan Saad, Otavio Augusto Pessotto Alves Siqueira, Olívia Gomes Martins, Sthefany Rodrigues Fernandes Viana and Meire Cristina Nogueira de Andrade

Challenges of herdsmen-farmers’ conflict in livestock production in Nigeria: Experience of pastoralists in Kogi State, Nigeria

February 2017

Herders-farmers’ conflict is wide spread and a formidable challenge to livestock production in Nigeria. The study examined challenges faced by pastoralists in conflict with farming communities. A total of 72 Fulani pastoralists from transit camps were used. Data were collected by use of structured interview schedule, focus group discussion and personal observation and analysed using descriptive statistics and...

Author(s): Dimelu M. U., Salifu D. E., Enwelu A. I. and Igbokwe E. M.

Assessing environmental and social impacts of the oil palm industry in Ghana: A project synthesis

February 2017

The oil palm industry has many positive benefits, particularly as a key source of livelihoods for rural dwellers, but it also has negative impacts on the society and environment. For instance, poorly planned oil palm cultivation can increase the rate of natural forest loss, and contribute to unfair labour conditions on plantations and processing mills. It is therefore important for sustainable oil palm project...

Author(s): Isaac Gyamfi

Socioeconomic determinants of hybrid maize adoption in Kenya

February 2017

Kenya has increasingly relied on modern agricultural technology to increase productivity since land extensification is no longer a feasible option to satisfy national food demands. Hybrid maize varieties have been one of the more successful technologies developed, responsible for dramatic yield increases in the developed world since World War II and more recently as an integral part of the Green Revolution. The purpose...

Author(s): Wang, Y., Vitale, J., Park, P., Adams, B., Agesa, B. and Korir M.

Soil pH, available P of an ultisol and castor performance as influenced by contrasting tillage methods and wood ash

February 2017

The effect of tillage methods and rates of wood ash on soil chemical properties and castor bean plant performance was studied in field trial at Abakaliki in three planting seasons. The experiment was a split plot in randomized complete block design with three tillage methods (mound, ridge, flat) and four rates of wood ash (0, 2t, 4 and 6 tha-1) replicated three times. Crop start version 7.2 was used to analyze data...

Author(s): Nweke, I. A., Mbah, C. N., Oweremadu, E. O., Dambaba, N., Orji, E. C., Ekesiobi, A. I. and Nnabuife, E. L. C.

Aluminum buffering in acid soil under mineral gypsum application

February 2017

Many researches have performed on gypsum application to correct high exchangeable aluminum content in acidic soils, especially in subsurface. Although, they have found increases in the exchangeable calcium and sulfur contents, exchangeable aluminum has not been decreased. The exchangeable aluminum buffering by organic matter may contribute to non-significant reduction in exchangeable acidity. The objective of this study...

Author(s): Igor Tenório Marinho Rocha, Nathalia Sobral Bezerra, Fernando José Freire, Edivan Rodrigues de Souza, Maria Betânia Galvão dos Santos Freire, Emídio Cantídio Almeida de Oliveira and Djalma Euzébio Simões Neto

Adjustment of decay rates of organic matter in a Latossolo Vermelho-Amarelo in the Araripe National Forest, Brazil

February 2017

The use of mathematical models is an alternative way to understand how management practices affect soil organic matter (SOM) dynamics because such models yield results on time scales that would be impossible to observe in field studies. The aim of this study was to parameterise and calibrate the application Century 4.0 in terms of the edaphoclimatic conditions of a Latossolo Vermelho-Amarelo of the Araripe Plateau and...

Author(s): Adriana Oliveira Araújo, Luiz Alberto Ribeiro Mendonça, Maria Gorethe de Sousa Lima, Eduardo de Sá Mendonça, Fernando José Araújo da Silva, José Marcos Sasaki, Antonio Italcy de Oliveira Júnior and José Valmir Feitosa

Effect of Global-GAP policy on smallholder French beans farmers’ climate change adaptation strategies in Kenya

February 2017

This study analyzed the role of Global-GAP policy, on smallholder French beans farmers’ climate change adaptation strategies in, fruit and vegetables farming. It considered: (1) the prevailing adaptation strategies used by the farmers; (2) regional differences in the farmers’ adaptation strategies; and (3) how Global-GAP policy influence the farmers’ decisions on the use of adaptation strategies. A...

Author(s): Peter Shimon Otieno, Chris Ackello Ogutu, John Mburu and Rose Adhiambo Nyikal

Wheat yield obtained from nitrogen dose and fractionation

February 2017

It is possible to increase nitrogen for wheat productivity by adjusting the single and fractionated dose based on the condition of the agricultural year. The objective of this work is to study the  highest  amount of nitrogen used for the production of wheat using single dose  or fractionation under favorable and unfavorable cultivation years. The study was conducted in  2012, 2013 and 2014 in...

Author(s): Ana Paula Brezolin, José Antonio Gonzalez da Silva, Fabricia Roos-Frantz, Manuel Osorio Binelo, Cleusa Adriane Menegassi Bianchi Krüger, Emilio Ghisleni Arenhardt, Anderson Marolli, Rubia Diana Mantai, Osmar Bruneslau Scremin and Eldair Fabricio Dornelles

Effects of edible coating materials and stages of maturity at harvest on storage life and quality of tomato (Lycopersicon Esculentum Mill.) fruits

February 2017

Tomato (Lycopersicon esculentum Mill.) fruits due to their high moisture content are spoiled and deteriorate in short period of time. Once fruits are harvested, respiration and transpiration are the two major physiological processes that significantly affect storage life and quality of the fruits. However, effects of these processes can be minimized through optimizing harvesting stage of fruits and applying physical...

Author(s): Zekrehiwot Abebe, Yetenayet B. Tola and Ali Mohammed

Treatments and utilization of swine waste in Brazil

February 2017

Swine wastes obtained from farming activities have the greatest impact on the environment by environmental agencies. Swine wastes together with poor management represent risks to the environment. In Brazil, these activities significantly increased in the last years and from 2014, the country became the fourth largest producer in the world. Swine wastes are generated in high amounts due to the confinement system used...

Author(s): Kesia Damaris de Azevedo Frigo, Armin Feiden, Silvio César Sampaio, Geraldo Camilo Alberton, Lara Talita Schneider, Gabriela Bonassa, Elisadro Pires Frigo and Reginaldo Ferreira Santos

Artificial neural networks in whole-stand level modeling of Eucalyptus plants

February 2017

Forestry production is traditionally predicted using mathematical modelling, where whole-stand models are prominent for providing estimates of growth and production per unit area. However, there is a need to perform research that adopts innovative tools, such as artificial Intelligence techniques. The objective of this study was to train and evaluate the efficiency of Artificial Neural Networks (ANN) in the modeling...

Author(s): Mirella Basileu de Oliveira Lima, Ilvan Medeiros Lustosa Junior, Elian Meneses Oliveira, Jéssica Cristina Barbosa Ferreira, Kálita Luis Soares and Eder Pereira Miguel

Agronomical and morphological diversity of the accessions of cassava in Central African Republic

February 2017

Cassava (Manihot esculenta Crantz) is an important subsistence food crop in Central African Republic. Data collections for the agronomical and morphological characterization provided 59 accessions of Cassava and were subjected to multivariate analysis to discriminate groups of accessions according to their morphological features. The Eigenvalues of the principal axes extracted from the multivariate analysis indicated...

Author(s): Kosh-Komba, E., Aba-Toumnou L., Semballa, S., Zinga, I., Yandia, P.,  Atato, A., Kadekoy-Tigague, D. , Wabolou, F. , Kongbo Dembo, E., Batawila, K. and Akpagana, K.

Physical and physiological attributes of black oat seeds produced in southern Brazil

February 2017

Black oat crop occupies the largest area during winter. It is important for animal production, crop rotation and dry matter production of approximately 3.8 million hectares in Rio Grande do Sul State. To ensure sowing, seeds are produced which must have high quality standards and must be evaluated by seed testing laboratories. Given this, the present study evaluated the physical and physiological quality of oat seeds...

Author(s): Roberto Carbonera, Ubirajara Russi Nunes, Alessandro Dal’Col Lúcio, José Antônio Gonzalez da Silva and Lorenzo Ghisleni Arenhardt

Cryopreservation and effect of lighting conditions and cytokinins on in vitro multiplication of Miconia ligustroides (DC.) Naudin

February 2017

Miconia ligustroides is a species that is native to Brazil and has medicinal and ecological importance. However, the species shows a lack of uniformity and delay in ex vitro germination. Thus, this study aimed to establish in vitro propagation for the species and to develop a protocol for the cryopreservation of seeds. For in vitro germination, activated charcoal (0.0, 0.5, 1.0, and 2.0 g L-1) was tested in Murashige...

Author(s): Débora de Oliveira Prudente, Débora Domiciano, Renato Paiva, Fernanda Carlota Nery and Wesley Pires Flausino Máximo

Long-term application of swine manure on soybean grown in no-till system in Savannah soils

February 2017

The application of liquid swine manure (LSM) in the soil as biofertilizer is one of the most recycling alternatives adopted, because the nutrients contained in this residue can override, in part or totally, commercial fertilizers, crop productivity with a reduction in production costs. The goal with this work was to evaluate the use of LSM as a substitute of mineral fertilization on soybean culture in conditions of...

Author(s): June Faria Scherrer Menezes, Mariana Pina da Silva, Veridiana Cardozo Gonçalves Cantão, Jeander Oliveira Caetano, Vinícius de Melo Benites, Gabriela Wilk Baião Campos and Bruno Lobato Rodrigues dos Santos

Impact of climate change on cotton production in Burkina Faso

February 2017

This paper evaluated the impact of climate change on cotton production in Burkina Faso. An econometric analysis resulted in identifying the major factors influencing cotton yields and evaluating the likely effects of future climate change. The results of our study regarding the potential impact of future climate change on cotton yield indicated that further increases in global temperature would significantly reduce the...

Author(s): Abdoulaye Diarra, Bruno Barbier, Bétéo Zongo and Hamma Yacouba

Automation in the control of a water mixer used for sanitation of bovine milking unit

February 2017

The milking unit sanitization is necessary after use. The processes are usually divided in steps and each one needs water at different temperatures for proper cleaning. However, to get the right temperature for each step cannot be easily achieved manually in rural properties. A hot water and cold water flow are needed. The farmer will need to properly mix the two water flows in order to reach a desired...

Author(s): Carlos Eduardo Camargo Nogueira, Gilberto Carlos Arnauts, Enerdan Fernando Dal Ponte, Rosemar Cristiane Dal Ponte, Jair Antonio Cruz Siqueira, Samuel Nelson Melegari de Souza and Eder Soares Machado

Response of phosphorous fertilizer and its recommendation for food barley (Hordium vulgare L.) production on Nitisols of central Ethiopian highlands

February 2017

Nowadays, making available proper and balanced fertilizer recommendations is of paramount importance in order to confirm security and increase crop productivity in sustainable way for farmers and other stakeholders. Soil test based phosphorous calibration study was conducted for barley (Hordium vulgare L.) on Nitosols of farmers’ fields in West Shewa, in the central highlands of Ethiopia. The experiment was...

Author(s): Legesse Admassu

Leaf area of sugarcane varieties and their correlation with biomass productivity in three cycles

February 2017

The objective of this work is to study the leaf area and biomass production of 4 sugarcane varieties in cane plant cycles, first and second regrowth. The experiment was conducted at Fazenda Jequiá in the state of Alagoas, Brazil. A randomized block design with 5 replications was used. The treatments were 4 cultivars: RB92579, SP813250, RB867515 and VAT90212. The length and width of the sheet + 3 were determined...

Author(s): Vinicius Santos Gomes da Silva, Mauro Wagner de Oliveira, Terezinha Bezerra Albino Oliveira,  Bruno Campos Mantovanelli, Abraão Cícero da Silva, Adrielle Naiana Ribeiro Soares and Paulo Ricardo Aprígio Clemente

Tomato Leafminer, Tuta absoluta (Meyrick 1917), an emerging agricultural pest in Sub-Saharan Africa: Current and prospective management strategies

February 2017

Tomato (Solanum lycopersicum L.) is an important vegetable crop for income and nutrition of small-holder farmers in sub-Saharan Africa. However, it is attacked by many insect pests that cause high economic losses. This review focuses on one insect pest, namely Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae). Many studies have shown that chemical pesticides have failed to control tomato leafminer in many parts...

Author(s): Never Zekeya, Patrick A. Ndakidemi, Musa Chacha and Ernest Mbega

Wheat blast research: Status and imperatives

February 2017

Wheat blast is relatively a new disease of wheat that first appeared in Brazil in 1985. It did spread to some other neighbouring countries in the following years and owing to its predisposing factors, was feared to be capable of moving across continental boundaries. The disease has now been reported from Bangladesh. Wheat blast at best can be described as poorly understood as both pathogen and its pathogenicity as well...

Author(s): Rajiv Sharma

Evaluation of nonlinear econometric models to estimate the wood volume of amazon forests

February 2017

Effective timber extraction from primary managed forests requires accurate estimates of the annual volumes of wood. Unlike other studies, this paper uses dummy variables to capture the effects of atypical observations and to estimate the volumetric equations using nonlinear least squares. The results show that the artificial variables are important for the model’s specification, and that the use of nonlinear least...

Author(s): Antônio Cordeiro de Santana, Ádamo Lima de Santana, Mário Miguel Amin and Nilson Luiz Costa

Performance variation among improved common bean (Phaseolus vulgaris L.) genotypes under sole and intercropping with maize (Zea mays L.)

February 2017

Periodic assessment of released common bean cultivars is essential to screen genotypes that offer superior intercropping advantage to farmers when grown in association with maize. Thus, comparative performance of improved genotypes representing commonly used growth habit and market classes were investigated under sole and intercropping system at Halaba special district, Southern Ethiopia. Treatments consisted of a...

Author(s): Rediet Abera, Walelign Worku and Sheleme Beyene

Validation of a phenological model for coffee tree productivity in Southern State of Minas Gerais, Brazil

February 2017

There are studies on the current state of understanding productivity models, focusing on the applicability of different estimation models for coffee tree productivity; the majority involving a considerable level of complexity. Thus, when searching for a simple and direct association between phenological characteristics and coffee productivity, doing research on this hypothesis is necessary. In this study, we aimed to...

Author(s): Wezer Lismar Miranda, Luiz Gonsaga de Carvalho, Joel Irineu Fahl, Rubens José Guimarães, Renato Ribeiro de Lima and Carlos Maurício Paglis

Climatization for scheduled ripening of caja-manga

February 2017

Being a climacteric fruit, the caja harvested still green has uneven ripening. Thus, the aim of this study was to evaluate the effect of ripening techniques aiming to promote a uniform ripening and reduction of quality loss in caja-manga fruits. The treatments resulted from the application of four ripening techniques (control, muffled, ethrel, and calcium carbide) and they were evaluated in 5 times, with 3 days...

Author(s): Ana Paula Silva Siqueira, Luis Henrique Costa Vasconcelos, Eduardo Pradi Vendruscolo, Bianca Schott da Silva Custódio, Daianna Pereira Costa, Tatiana Carvalho Faria and Alexsander Seleguini

Relations among phenotypic traits of soybean pods and growth habit

February 2017

This study aims to identify the phenotypic effects of traits associated with soybean pods and their growth habit. The experiments were carried out during the 2012 - 2013 agricultural year. It was done in randomized blocks arranged in a 2×20 factorial design (environments × soybean cultivars) with three replications. Data were subjected to individual analysis of variance for each environment and growth habit...

Author(s): Ivan Ricardo Carvalho, Maicon Nardino, Gustavo Henrique Demari, Vinícius Jardel Szareski, Diego Nicolau Follmann, Alan Junior de Pelegrin, Maurício Ferrari, Tiago Olivoto, Mauricio Horbach Barbosa, Antonio Costa de Oliveira, Luciano Carlos da Maia and Velci Queiróz de Souza

Structure of soyabeans markets in Benue and Enugu States, Nigeria

February 2017

The importance of agricultural marketing in national development cannot be over-emphasized. The study examined the structure of soyabeans markets in Benue and Enugu States, Nigeria. Primary data were collected using questionnaire admininstered to 207 marketers. Data were analysed using descriptive statistics, regression model, HHI, Gini coefficient and lorenz curve. The result showed that the major determinants of...

Author(s): Dorothy P. ANI, Sonny A. N. CHIDEBELU and Anselm A. ENETE

Mathematical analysis of morphological traits and their effects on body weight in the red crab (Charybdis feriata)

February 2017

The red crab (Charybdis feriata) is one of most important fishery resource in China. In the present study, 17 morphological traits and body weight of C. feriata were first measured and 18 traits were characterized, and then, the effects of morphological traits on body weight were estimated by statistical methods including correlation coefficients, determination coefficients, path coefficients and regression equations....

Author(s): Xiong Zou, Hongyu Ma, Jianxue Lu, Yangyang Gong and Lianjun Xia

Basic experimental unit and plot sizes with the method of maximum curvature of the coefficient of variation in sunn hemp

February 2017

The influence of the basic experimental unit size on the plot size estimation determined by the method of maximum curvature of the coefficient of variation model is unknown in sunn hemp. This study aimed to verify the influence of the basic experimental unit (BEU) size in the estimate of the optimum plot size obtained by the method of maximum curvature of the coefficient of variation model for the evaluation of fresh...

Author(s): Giovani Facco, Alberto Cargnelutti Filho, Bruna Mendonça Alves, André Lavezo, Diego Nicolau Follmann, Cláudia Marques de Bem, Denison Esequiel Schabarum, Jéssica Andiara Kleinpaul, Gabriela Görgen Chaves, Daniela Lixinski Silveira, Fernanda Martins Simões, Daniela Barbieri Uliana and Cleiton Antonio Wartha

Adaptability and stability of wheat cultivars sown on different dates in West Paraná

February 2017

This study aimed to assess adaptability and stability of different wheat cultivars on different sowing dates in western region of Paraná, Brazil. The assay was composed by following wheat cultivars: CD 154, CD 1252, CD 108, CD 151, CD 1550, CD 104, CD 1440, CD 116, CD 150, and CD 1104, which were sown on three different dates: April 29th 2014, May 20th 2014, and June 26th 2014. The methods used to determine...

Author(s): Rafel Massahiro Yassue, Hugo Franciscon, Claudio Yuji Tsutsumi, Vanessa Aline Egewarth, Jonas Francisco Egewarth, Diandra Achre, Silvio Douglas Ferreira, Renan Silva Souza, Lorena Maia Noreto, Jeferson Piano and Paulino Ricardo Ribeiro Santos

Radiological hazard of coffee to humans: a comparative study of Arabian and Turkish coffees

February 2017

Thirty-nine Arabian and Turkish coffee powder samples purchased from various markets in Saudi Arabia were analyzed by High Pure Germanium (HPGe) gamma spectrometry to determine the activity concentrations of the natural and artificial radionuclides 238U, 226Ra, 232Th, 137Cs, and 40K. All samples, (except for two samples of Turkish coffee) were found to contain a high mean content of 40K, ranging from 839.83 to 1197.11...

Author(s): W. R. Alharbi and Zain M. Alamoudi

Peat influence on Zn tolerance, bioconcentration and bioaccumulation in Eucalyptus grandis Hill ex Maiden

February 2017

Soil contamination with zinc occurs in mining and agricultural areas through successive applications of pig slurry. Essential to the selection and adaptation of plants to contaminated soil, is the study of species showing not only tolerance but also bioaccumulation or bioconcentration of zinc associated with amelioration. In this context, this study aimed to evaluate the influence of peat addition on the tolerance,...

Author(s): Rodrigo Ferreira da Silva, Rudinei De Marco, Alex Negrini, Claudir José Basso, Vanderlei Rodrigues da Silva, Alexandre Swarowsky, Douglas Leandro Scheid , Marcia Matsuoka, Clóvis Orlando Da Ros and Paola Daiane Welter

Productivity, nutritional quality and phenotypical stability of varieties of silage sorghum in Uberlândia, MG

February 2017

Sorghum (Sorghum bicolor (L.) Moench) is a good alternative for silage, especially in places with water scarcity and high temperatures, due to their morphological and physiological characteristics. Proper management contributes both to productivity and to the quality of forage. The present study was conducted with the following objectives: To evaluate the agronomic and bromatological performance of varieties of sorghum...

Author(s): Alyne Dantas Mendes de Paula, Evandro Fernandes de Abreu, César Henrique Souza Zandonadi, Fernanda Heloísa Litz and Carlos Juliano Brant Albuquerque

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