African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6559

Table of Content: 13 March 2014; 9(11)

March 2014

Compatibility among insecticides, acaricides, and Bacillus thuringiensis used to control Tetranychus urticae (Acari: Tetranychidae) and Heliothis virescens (Lepidoptera: Noctuidae) in cotton fields

Tetranychus urticae and Heliothis virescens are major pests of cotton and have been managed by the indiscriminate use of acaricides and insecticides. The combined use of chemical and biological products, in particular Bacillus thuringiensis-based products, and the rotation of active ingredients can reduce the negative effects of pesticides and can contribute to the management of resistance, control costs, and help the...

Author(s): Lucas Trevisoli Agostini, Rogerio Teixeira Duarte, Haroldo Xavier Linhares Volpe, Thiago Trevisoli Agostini, Gustavo Aparecido de Carvalho, Yasser Pagliusi Abrahão and Ricardo Antonio Polanczyk

March 2014

Performance of a local open pollinated maize variety and a common hybrid variety under intensive small-scale farming practices

Given that the majority of maize farmers in Kenya are small-scale, improvement in maize production must focus on increased production per unit area. While hybrid maize varieties outperform local open pollinated varieties under conventional farming practices, their relative performance has not been tested under small-scale intensive production practices. A study was conducted in 2013 in Kitale, western Kenya, to evaluate...

Author(s): Emmanuel Chiwo Omondi, Jay B. Norton and Dennis Shibonje Ashilenje

March 2014

Effect of silicate on nutrition and yield of wheat

An improvement in soil properties and crop development with silicate application has been confirmed in several plant species. This study investigated the effect of application of calcium silicate on nutrition and yield of wheat (Triticum aestivum L.). Wheat plants were grown in 8-L pots filled with clayey Rhodic Hapludox in a greenhouse. The experiment was arranged in a completely randomized design, with five...

Author(s): Marcos Vinícius Mansano Sarto, Maria do Carmo Lana, Leandro Rampim, Jean Sérgio Rosset, Jaqueline Rocha Wobeto, Martios Ecco, Doglas Bassegio and Poliana Ferreira da Costa

March 2014

Soil and foliar application of Zinc to maize and wheat grown on a Zambian Alfisol

The deficiency of zinc (Zn) in human nutrition, commonly found in cereal-based diets accounts for impaired growth (stunting) in children. Since cereals are generally low in this element, bio-fortification may represent an opportunity to increase Zn intake by humans. A study was carried out to evaluate Zn uptake by maize and wheat when they are supplied with increasing rates of foliar or soil applied Zn. Maize and wheat...

Author(s): Olusegun A. Yerokun and Meki Chirwa

March 2014

Activation of biochemical defense mechanisms in bean plants for homeopathic preparations

To evaluate the potential elicitor of homeopathic preparations on bean plants cv Carioca, homeopathics of Corymbia citriodora, Calcarea carbonica, Silicea and Sulphur in dynamisations 12, 24, 30 and 60CH were applied by pulverization throughout the aerial part. Samples of leaf tissue were taken at 6, 12, 24, 48 and 126 h after the treatment (HAT) to analyze the activity of peroxidase (POX), catalase (CAT), chitinase...

Author(s): Juliana Santos Batista Oliveira, Aline José Maia, Kátia Regina Freitas Schwan-Estrada, Carlos Moacir Bonato, Solange Monteito Toledo Pizza Gomes Carneiro and Marcelo Henrique Savoldini Picoli

March 2014

Growth and yield in chickpea (Cicer arietinum L.) genotypes in response to water stress

Twenty chickpea genotypes were grown under rainout shelter to investigate the influence of water stress treatments imposed at varied growth stages; T1; Control, T2; One pre-sowing irrigation, T3; withholding irrigation at flower-initiation, T4; withholding irrigation at pod-initiation stage. The plant height, branches, dry weight of stem, leaves and root plant-1, leaf area, leaf area index were recorded at 120 days...

Author(s): Navkiran Randhawa, Jagmeet Kaur, Sarvjeet Singh and Inderjit Singh

March 2014

Productivity of fertirrigated sugarcane in subsurface drip irrigation system

The productivity and fresh phytomass index of sugarcane cultivated at different water replacement levels using a subsurface drip system, with or without N, were analyzed. Sugarcane plants underwent five water replacement levels (100, 75, 50, 25 and 0%), with or without N application (100 kg ha-1) in urea. At harvest-time, stalk productivity, water-use efficiency, gross sugar yield, gross alcohol yield, fresh phytomass...

Author(s): Renato Campos de Oliveira, Fernando Nobre Cunha, Nelmício Furtado da Silva, Marconi Batista Teixeira, Frederico Antonio Loureiro Soares and Clarice Aparecida Megguer

March 2014

Economic impacts of climate change on agriculture and implications for food security in Zimbabwe

This study measured the economic impacts of climate change on agriculture in Zimbabwe based on a cross-section survey of over 700 farming households. We applied the Ricardian approach to analyse the response of net revenue from crop and livestock agriculture across smallholder farming systems in the country to changes in climate normals (that is, mean rainfall and temperature). The sensitivity of net farm revenues was...

Author(s): Nhemachena Charles

March 2014

Parametric stability analyses for green forge yielding traits in oats (Avena sativa L.)

The objectives of this research were to assess genotype environment interaction and determine stable oat (Avena sativa L.) cultivar in Kashmir division over three locations for fodder yield and its components in 10 genetically diverse genotypes using randomized block design. There was considerable variation in forage yield within and across environments. Stability analysis for forage yield was conducted to check the...

Author(s): Mushtaq Ahmad, Gul Zaffar, Z. A. Dar, Noorul Saleem and Mehfuza Habib

March 2014

Genetic diversity of citrus (Rutaceae) in Iraq based on random amplified polymorphic DNA (RAPD) markers

Citrus is an economically important fruit crop with a long history of cultivation worldwide. A great number of varieties of citrus are extensively grown in the Middle East including Iraq for domestic consumption and exports. However, the genetic diversity of this genus in Iraq has not been reported. Therefore, the objective of this study was to evaluate genetic relationships of Iragi citrus genotypes to provide useful...

Author(s): Aseel K. AL-Anbari, Nantawan Kanawapee, Talib A. AL-Kazragi, Hazim AL-Jewari, Athia Al-Mashhadani, Sahapat Barusrux, Pimwadee Pornpongrungrueng and PiyadaTheerakulpisut