African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6863

Table of Content: 26 January, 2017; 12(4)

January 2017

Anti-atherogenic properties associated with the antioxidant activity from the hydrophilic extracts of Halimeda incrassata (Chlorophyta, Bryopsidales)

Seaweeds are a source of natural antioxidants having potential application in oxidative stress and associated diseases. In this work, anti-atherogenic properties associated with the antioxidant activity from the hydrophilic extracts of Halimeda incrassata were studied. The phenolic content assessed in the aqueous extract and fraction phenolic acids (FPA) was 0.13 ± 0.05 and 0.47 ± 0.09 mg of gallic acid...

Author(s): Alexis Vidal-Novoa, Ariadna Costa-Mugica, Yenisleidy Zulueta-Díaz, Daylín Diaz-Gutierrez, Ana Mara de Oliveira e Silva, Ana María Vazquez, Claudina Zaldívar-Muñoz, Dalva Assunçao Portari de Mancini and Jorge Mancini-Filho

January 2017

Phytosociology and weed interference in okra under organic cropping system

A research was carried out to study phytosociology and to determine the periods of weed interference in the okra crop in organic cropping system. The experiment was laid out in a randomized complete block design with 20 treatments and four replications. The treatments were 10 periods of weed coexistence with the crop during 0-7, 0-14, 0-21, 0-28, 0-35, 0-42, 0-49, 0-56, 0-63 and 0-74 days after crop emergence (DAE) and...

Author(s): Raimundo Nonato Viana Santos, Antonia Alice Costa Rodrigues, Maria Rosangela Malheiros Silva, Maria José Pinheiro Correa and Mario Luiz Ribeiro Mesquita

January 2017

Spatial variability of soil physical and chemical aspects in a Brazil nut tree stand in the Brazilian Amazon

The Brazil nut is considered one of the noblest trees of the Amazon biome and contains social, ecologic and economic importance to this region. The study of the spatial variance of the edaphic properties in native nut trees can direct future researches about more efficient samplings. The Geostatistics is the methodology utilized for this type of study, once that it considers the structural and random characteristics of...

Author(s): Quêzia Leandro de Moura Guerreiro, Raimundo Cosme de Oliveira Júnior, Gérson Rodrigues dos Santos, Maria de Lourdes Pinheiro Ruivo, Troy Patrick Beldini, Eduardo Jorge Maklouf Carvalho, Katia Emidio da Silva, Marcelino Carneiro Guedes and Paulo Roberto Brasil Santos

January 2017

Determination of heavy metals in the roasted and ground coffee beans and brew

Some compounds present in coffee beans can affect consumer health. The present study determines the content of heavy metal in coffee cultivated in the Cerrado Mineiro region (Alto Paranaíba – MG, Brazil), to compare the values found with the legal standards and check how these metals are extracted from the respective infusions. Fifty samples of coffee beans were analyzed, taken from the Alto...

Author(s): Sabrina Alves da Silva, Fabrícia Queiroz Mendes, Marcelo Rodrigues Reis, Flávia Regina Passos, André Mundstock Xavier de Carvalho, Kátia Rodrigues de Oliveira Rocha and Frederico Garcia Pinto

January 2017

Sanitary analysis, transmissibility and pathogenicity of fungi associated with cashew nuts

There are few reports of transmission of fungus associated with cashew nuts (Anacardium occidentale L.) in Brazil and worldwide. Thus, the aim of this study was to evaluate the incidence and severity of anthracnose on leaves and fruits (nuts) of cashew, nuts sanitary analysis, nuts-seedling transmission and pathogenicity of fungi associated with cashew nuts. To this end, leaves and nuts of cashew collected in the cities...

Author(s): Jaíza Francisca Ribeiro Chagas, Solange Aparecida Ságio, Evelynne Urzêdo Leão, Aloísio Freitas Chagas Júnior, Marcos Vinicius Giongo, Raimundo Wagner de Sousa Aguiar, Rodrigo Ribeiro Fidelis and Gil Rodrigues dos Santos

January 2017

Stalk productivity and quality of three sugarcane varieties at the beginning, in the middle, and at the end of the harvest

This paper evaluated the stalk productivity and quality of the RB961552 and RB98710 sugarcane varieties, compared with RB92579, during the cane-plant and regrowth cycles. The study was conducted in a random block experimental design with five repetitions. The plots composed of 7 furrows measuring 8 m in length with 1.0 m spacing. Juice quality from the lower, middle, and upper thirds of the industrialized stalks was...

Author(s): Daniele Costa de Oliveira, Mauro Wagner de Oliveira, Manoel Gomes Pereira, Tâmara Cláudia de Araújo Gomes, Vinicius Santos Gomes da Silva and Terezinha  Bezerra Albino Oliveira

January 2017

Physiological aspects in cotton cultivars in response to application leaf gibberellic acid

The cotton plant is a species of the Malvaceae family and is relevant to the Brazilian and world economy, mainly because of the textile fiber. However, there was an increase in cotton production because it is necessary for the use of inputs or stimulants, such as the use of gibberellic acid, which has contributed in improving the physiological processes of plants. The study aimed to evaluate the effects of gibberellic...

Author(s): Jussara Cristina Firmino da Costa, Demetrius José da Silva, Antônio Gustavo de Luna Souto, Valdinei Sofiatti, Luciana Domiciano Silva Rosado, Antonio João de Lima Neto and Carlos Eduardo Magalhães dos Santos

January 2017

Quality of seeds from Leucaena species stored under ambient conditions

The objective of this research was to know the performance of the seeds from different species of the Leucaena genus (Leucaena leucocephala, Leucaena lanceolata, Leucaena diversifolia, Leucaena macrophylla and Leucaena esculenta), stored under ambient conditions and subject to an evaluation of their physical, physiological and sanitary quality. The material came from the harvests of the collection planted at the...

Author(s): Hilda B. Wencomo, R. Ortíz and J. Cáceres

January 2017

Abundance and distribution of Ixodid tick species infesting cattle reared under traditional farming systems in Tanzania

Ticks and tick-borne diseases are serious constraints to livestock production in Tanzania and other sub-Saharan African countries. Despite this, knowledge on the abundance of tick species infesting cattle in most parts of Tanzania is insufficient or lacking. This study was conducted to identify species and establish the abundance of ticks infesting cattle in Mara, Singida and Mbeya regions of Tanzania. The ticks were...

Author(s): Isack Ibrahim Kerario, Walter Muleya, Sebastian Chenyambuga, Marja Koski, Seong-Gu Hwang and Martin Simuunza