African Journal of
Agricultural Research

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

AJAR Articles

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

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

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.

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

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

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

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

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

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

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

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

Evaluation of solvent retention capacity of wheat (Triticum aestivum L.) flour depending on genotype and different timing of nitrogenous fertilizer application

October 2016

Wheat is one of the most important cereal crops in the world. The objectives of this study were: (i) to evaluate the solvent retention capacity of wheat flour from three genotypes when nitrogenous fertilizer is applied at different stages of crop growth; and (ii) to evaluate the possible existence of correlations between different solvents when nitrogenous fertilizer is applied at different stages of crop growth. The...

Author(s): Alan Junior de Pelegrin, Ivan Ricardo Carvalho, Mauricio Ferrari, Maicon Nardino, Vinícius Jardel Szareski, Daniela Meira, Cleiton Antônio Wartha, Diego Nicolau Follmann, Carla Maria Garlet de Pelegrin, Luiz Carlos Gutkoski, Antonio Costa de Oliveira, Luciano Carlos da Maia and Velci Queiróz de Souza

Development and production of chia (Salvia hispanica L.) in different space arrangements

October 2016

The development of management methods appropriate for the culture of chia (Salvia hispanica L.) is essential to improve productivity. This research aimed to evaluate and quantify the development and productivity of chia plants in different row spacing and planting density in Western region of Paraná. As the treatments used were four row spacing (0.15, 0.30, 0.45 and 0.60 m) in three plant densities (200,000,...

Author(s): Thiago Furlan de Freitas, Bruna Broti Rissato, Alexandre Luis Müller, Dyogo Bortot Brustolin, Sidiane Coltro-Roncato, Omari Dangelo Forlin Dildey, Guilherme Peixoto de Freitas and Heloisa Ferro Constâncio Mendonça-Müller

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

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

Selection of S0:2 maize progenies using a mixed-model approach

October 2016

In breeding programs, obtaining breeding lines was important, and first selfing selection generations is common. In addition, an analytic approach through mixed models can lead to more success in genotype selection because it lends flexibility in analysis of unbalanced data and provides more precise genotypic values in regard to progenies evaluated. The goal of this study was to make early selection (in the S2...

Author(s): Leandro Lopes Cancellier, Luiz Paulo Miranda Pires, Luiz Antonio Yanes Bernardo Júnior, Ewerton Lelys Resende, Eduardo Lopes Cancellier and Renzo Garcia Von Pinho

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

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

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

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

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

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

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

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

Phenotypic variability in Nigerian castor (Ricinus communis L.) accessions

October 2016

Ten accessions of Ricinus communis L. were grown in derived savannah agro-ecological zone for two cropping seasons under rain fed conditions. The work aimed at phenotypic characterization of R. communis for different qualitative and quantitative traits. The field characterization of the genotypes was done using randomized complete block design with three replications at the new site of Botanical garden, University of...

Author(s): Udoh, Obiora E. and Abu, Ngozi E.

A review of geographic information systems and digital imaging in plant pathology application

October 2016

The increasing rate of disease incidence resulting from devastating effects of plant pathogens, limits crop productivity globally, thus affecting food security. The current global population growth with many mouths to feed is dependent on vibrant agricultural productivity. The effects of globalization, climate change, evolution of pathogens and vectors to mention a few, have combined to increase spread of invasive plant...

Author(s): A. B. Nwauzoma

Irrigation productivity and water-use efficiency in papaya crop under semi-arid conditions

October 2016

Papaya (Carica papaya L.) has a great economic importance in tropical and subtropical countries, Brazil being one of the largest producers of papaya  in the world. This crop requires a considerable amount of water during its cycle, making proper irrigation management essential for optimal water use. Improving water-use efficiency can increase levels of agricultural production as well as the efficient use of water...

Author(s): Erialdo de Oliveira Feitosa, Antonio Flávio Batista Araújo, Calorine Maria Bayma Oliveira, Fernando Bezerra Lopes and Eunice Maia de Andradre

Multivariate analysis of the genetic divergence among populations of ornamental pepper (Capsicum annuum L.)

October 2016

The genus Capsicum presents a wide genetic variability. The most common way to determine this variability has been based upon morphological descriptors. We studied the genetic divergence among populations of ornamental pepper (Capsicum annuum L.) using two different multivariate techniques: Cluster analysis and canonical discriminant variables. The analyses enabled us to determine the morphological descriptors that...

Author(s): Júlio Carlos Polimeni de Mesquita, Elizanilda Ramalho do Rêgo, Anderson Rodrigo da Silva, João José da Silva Neto, Lucas Chaves Cavalcante and Maílson Monteiro do Rêgo

Operating and energetic performance of the assembly tractor-scarifier in different liquid ballasting and working depths

October 2016

The working depth and ballasting are factors that can influence directly the operational and energy performance of a mechanized set. The objective of this study was to evaluate the operational and energetic performance of the set tractor-scarifier, working at three depths under two ballasting conditions. The study was conducted in the experimental area of ​​mechanization of the Department of Agricultural Engineering...

Author(s): Paulo Ricardo Alves dos Santos, Clice de Araújo Mendonça, Mara Alice Maciel dos Santos, Francisca Edcarla de Araújo Nicolau, Marcelo Queiroz Amorim, Maria Albertina Monteiro dos Reis, Carlos Alessandro Chioderoli and Danilo Roberto Loureiro

Exploitation of variability for salinity tolerance in maize hybrids (Zea mays L.) at early growth stage

October 2016

Salinity is extremely serious problem that has a drastic effect on maize crop, environment and causes economic losses of country. An advance technique to overcome salinity is to develop salt tolerant genotypes which require screening of huge germplasm to start a breeding program. Therefore, present study was undertaken to screen out 25 maize hybrids of different origin for salinity tolerance at seedling stage under...

Author(s): Abdul Qayyum, Hafiz Muhammad Saeed, Mamoona Hanif, Etrat Noor, Waqas Malik, Shoaib Liaqat, Kanwal Hanif and Naveed Murtaza

Consequence of different ripeners on germination and initial growth of morning glory

October 2016

At the application time of sugarcane ripeners, most times, morning glory plants, that have escaped, survived or emerged, are entwined on sugarcane stalks and these plants are at this time in different reproductive stages (and it becomes more difficult to control) causing a mechanical and crop yield damage. The main aim of this research was to evaluate sugarcane crop ripeners effect on the seeds germination, seedling...

Author(s): Anne Elise Cesarin, Willians César Carrega, Pedro Figueiredo Rocha Barbosa Martins, Cárita Liberato do Amaral, Mariluce Pascoina Nepumuceno and Pedro Luis da Costa Aguiar Alves

Characterization of ‘Cabernet Sauvignon’ wine made with grapes from Campanha– RS Region

October 2016

Campanha region in the state of Rio Grande do Sul (RS) has received attention on grape production specifically ‘Cabernet Sauvignon’, ‘Merlot’ and ‘Tannat’. Due to the edafoclimatic peculiarities such as sandy soil, good thermal amplitude and sunshine, and low rainfall during the ripening period, it is supposed that the wine of this micro-region, in especially Bagé, might have...

Author(s): Renata Gimenez Sampaio Zocche, Suziane Antes Jacobs, Velci Queiróz de Souza, Maicon Nardino, Ivan Ricardo Carvalho, César Valmor Rombaldi, José Carlos Fachinello and Luíz Antenor Rizzon

Growth and production of a Japanese cucumber crop under pulse irrigation

October 2016

Water is the most important production factor in agriculture, since even small restrictions to the water supply can result in decreased productivity. Due to climatic reasons, water supply is limited in many parts of the world, resulting in a need to develop techniques that increase the water use efficiency. Pulse irrigation consists of the application of an irrigation depth, relative to the actual irrigation needed,...

Author(s): André Maller, Roberto Rezende, Paulo S. L. Freitas, Cassio C. Seron, Fernando A. Silva Santos and Jhonatan M. Oliveira

Treatment of bean seeds with plant extracts for controlling Zabrotes subfasciatus and its effects on physical and physiological quality during storage

October 2016

Bean crop occupies a prominent place in medium and large farming units in Brazil. Most of the time, the success of this crop depends, among other factors, on the use of good quality seeds at sowing; which requires strict quality control, harvesting, and storage. The objective of this study is to evaluate the effect of leaves and shells extracts of Aspidosperma pyrifolium Mart., Anadenanthera colubrina and myrtle...

Author(s): Elvira B. Pessoa, Francisco de Assis C. Almeida, Acácio F. Neto and Jucilayne F. Vieira

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