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: 19 March, 2012; 7(11)

March 2012

The status of the agro-processing industry in Zimbabwe with particular reference to small- and medium-scale enterprises

The review examined what small and medium agro-processing systems require to effectively  manufacture and market processed products; and analysed agro-processing service provision, and  research and extension linkages in Zimbabwe. The number of agro-processors has increased, creating  employment opportunities, but the prevailing economic environment tend to favour growth of mediumscale...

Author(s): Norman Mhazo, Brighton M. Mvumi, Elijah Nyakudyaand Raymond M. Nazare  

March 2012

Repellence property of traditional plant leaf extracts against Aphis gossypii Glover and Phenacoccus solenopsis Tinsley

Aphid, Aphis gossypii Glover (Hemiptera: Aphididae) and mealybug, Phenacoccus solenopsis Tinsley  (Hemiptera: Pseudococcidae) are major polyphagous pests in Vadodara agricultural fields. To control  these sap sucking insect pests; farmers are using broad spectrum insecticides which are toxic to non  target insects. Therefore, the objective of this study is to control these pests by using...

Author(s): Anita Singh, Ruchika Kataria and Dolly Kumar

March 2012

Pollinator diversity, behaviour and limitation on yield of karela (Momordica charantia L. Cucurbitaceae) in Western Kenya

Inadequate pollination is a major constraint to crop yield. Momordica charantia L. is a fruit crop of  economic interest in Kenya. Pollination ecology, pollinator diversity and their behaviour were studied in  Western Kenya. Pollination treatments included insect exclusion, open pollination (unrestricted insect visits), hand cross-pollination and pollen augmentation. Yield components from...

Author(s): Mary Lucy Oronje, Melanie Hagen, Mary Gikungu, Muo Kasina and Manfred Kraemer 

March 2012

Mineralogy and aggregate stability of soils in the arid region of Southeastern Iran

The stability of arid soils can be affected by their chemical and mineralogical properties. A study was  conducted to investigate the influence of soil chemical and mineralogical properties on soil stability  indices in the Shamil-Ashkara Catchment area of Iran. Eight soil profiles were dug and all the soils were  classified as Entisols and Aridisols. These soils are calcareous in nature with...

Author(s): A. H. Moghimi, J. Hamdan, J. Shamshuddin, A. W. Samsuriand A. Abtahi

March 2012

Effects of soil properties and agronomic practices on wheat yield variability in Fengqiu County of North China Plain

To produce sufficient food with limited arable lands has been a challenging issue. Thus, identification of  the main factors influencing crop productivity has attracted the attention of many researchers. Fengqiu  County of Henan Province, located in North China was chosen as study area; soil property and  agronomic practice data of 111 sites were collected during the 2009 growing season....

Author(s): Junfeng Zhang, Qin Liu, Mengjie Xu and Bingzi Zhao

March 2012

Effect of soil acidification on growth indices and microelements uptake by greenhouse cucumber

Based on the climate condition of Iran and most of its soils that are calcareous, it is important to  prepare the nutritional requirements of cucumber and decrease the growth and development limitations  of greenhouse cucumber. In this way, notation to pH properties is essential. Optimum pH for plants  production is slightly acidic such that it is necessary to correct soil pH to a more...

Author(s): Ahmad Mohammadi Ghehsareh and Najmeh Samadi

March 2012

Red palm weevil (Rhynchophorus ferrugineus Olivier) infestation and its chemical control in Sindh province of Pakistan

The survey on various parameters showed that the degree of orchard infestation fluctuated by time  period/seasons, so attack of red palm weevil varied on different months of the year during the study  period. It was observed that this insect pest had significantly higher (16%) infestation in the months of  June, July and August, during experimental period. The least attack (8%) of the weevil...

Author(s): Muhammad Usman Shar, Maqsood Anwar Rustamani, Shafi Muhammad Nizamaniand Liaquat Ali Bhutto

March 2012

Growth response and carcass quality of broiler chickens fed on diets supplemented with dietary copper sources

An experiment was conducted to determine the effects of dietary sources of copper on growth  performance and carcass characteristics of broiler chickens. Three dietary sources of copper (Cu)  namely: copper sulphate (CuSO4), copper oxide (CuO) and copper acetate were added to a corn-soy  basal diet, which was formulated to meet the nutrient requirements of broilers, at 150, 200 and 250...

Author(s): F. A. Igbasan and S. K. Akinsanmi 

March 2012

The effects of using different levels of lemon balm (Melissa officinalis L.) medicinal plant on performance, egg traits, blood biochemical parameters and Immunity cells of laying hens

This experiment was conducted to evaluate the effects of different levels of Lemon balm (Melissa  officinalis L.) medicinal plant dried aerial part powder on performance, egg traits, blood biochemical  and Immunity cells of laying hens. 180 laying hens (W36 strain) from 46 until 58 weeks of age were used  in a completely randomized design in five treatments (0, 0.5, 1, 1.5 and 2%) and three...

Author(s): Ali Nobakht and Mosea Moghaddam 

March 2012

Weed competitiveness and yield of inter-and intraspecific upland rice (Oryza sativa L.) under different weed control practices at Badeggi, Niger State, Nigeria

A field study was conducted at the National Cereals Research Institute, Badeggi (9°04 N, 6°7 E), Niger ia  in 2007 and 2008 to compare the weed competitiveness and yield of inter- and intra-specific upland rice  (Oryza sativa L.) under different weed control practices. The trial was laid out in a split-plot and  arranged in a randomized block design with the two varieties of rice...

Author(s): M. G. M. Kolo and I. Umaru

March 2012

Notes on the genus Viscum (Viscaceae) in Iran: A new combination based on morphological evidence

The genus Viscum L. (Viscaceae) with 150 species in the world was known in Iran only by V. album L.  subsp. album. The plants of Viscum are hemiparasites growing on various host trees such as  Crataegus sp., Parrotia persica and Pyrus sp. To investigate the range of morphological variation in  different populations of these subspecies authors conducted detailed morphological...

Author(s): Shahryar Saeidi Mehrvarz, Robabeh Shahi Shavvon and Narges Golmohammadi

March 2012

Non-destructive measurement of crude fat and crude protein contents of oats from different geographical zones in China using visible and near-infrared spectroscopy

Oats’ geographical origin and internal component contents have great impacts on their flavor, off-flavor,  emulsifying and binding properties. Geographical origin identification was done by classical Soft  Independent Modeling of Class Analogy (SIMCA) and least squares support vector machine (LS-SVM),  respectively. The correct answer rate of the LS-SVM model was 98.3%, better than that...

Author(s): Xuan Wei, Di Wu and Yong He

March 2012

Research of the remote and real-time data collection platform toward distributed greenhouse structure

In order to elevate the whole management level of distributed greenhouse systems, research into the  data with different network conditions. Analysis into the requirement of distributed greenhouse system,  an OPC-based remote and real-time data collected platform was suggested for different network  conditions. The system was realized by OPC XML including the client, server, software...

Author(s): Shunkui KE, Lei LI, Yubin MIAOand Danfeng HUANG

March 2012

Determination of the best cotton cultivars and selection criteria to improve yield in Gorgan climatic region

The purpose of this research was to introduce cultivars of high products in Gorgan region climatic  condition and study the interrelationships between the seed cotton yields and several traits of 8 cotton  genotypes at Plant Institute, Gorgan, Iran. The experimental design was a randomized complete block  design with four replications. A positive significant (P<1%) correlation was observed...

Author(s): Borzo Kazerani

March 2012

Deforestation modeling using logistic regression and GIS (Case study: Northern Ilam forests, Ilam Province, Iran)

This study aims to predict spatial distribution of deforestation and detects factors influencing forest  degradation of Northern forests of Ilam province. For this purpose, effects of six factors including  distance from road and settlement areas, forest fragmentation index, elevation, slope and distance from  the forest edge on the forest deforestation are studied. In order to evaluate the...

Author(s): Saleh Arekhi and Ali Akbar Jafarzadeh

March 2012

Effect of plant population, stem and flower pruning on hydroponically grown sweet pepper in a shadenet structure

A study was conducted in 2009/2010 and 2010/2011 to investigate the effect of plant population, flower  and stem pruning of hydroponically grown peppers in a 40% (black and white) shadenet structure at the  ARC-Roodeplaat VOPI. The research was done in an open bag hydroponic system with sawdust as  growing medium. Pepper plants were subjected to three plant populations (2, 2.5 and 3...

Author(s): M. M. Maboko, C. P. Du Plooy and S. Chiloane

March 2012

Lepidoptera fauna of Yuvacik dam watershed in Kocaeli, Turkey

The aim of this study is to determine Lepidoptera fauna of the Yuvacik Dam Watershed in Kocaeli. The  study was conducted in 2007 from March to November. 493 specimens were collected from study area. A total of 119 species belonging to 16 families of Lepidoptera order were identified. Polyommatus  dorylas [(Den and Schiff, 1775) and Zerynthia cerisy (Godart, 1822)] are considered as Near...

Author(s): Vedat BEÅžKARDEÅž

March 2012

Yield and water productivity of maize and wheat under deficit and raised bed irrigation practices in Egypt

This work aims at evaluating the performance of deficit irrigation (DI) and raised bed techniques (RB) of  maize (Zea mays L.) and wheat (Triticum aestivum L.) as compared to farmers’ practice (FT) and full irrigation (FWR) in the Nile Delta of Egypt in 2005/2006 and 2006/2007 seasons. In maize, results showed  that the application of FWR as compared to the FT reduced water application by 640...

Author(s): Mohammed Karrou, Theib Oweis, Rashad Abou El Enein and Mohamed Sherif

March 2012

Some physiological characteristics in maize (Zea mays L.) inbred lines tolerant to low potassium from grain filling to maturity

Northeast China produces an abundance of maize (Zea mays L.). In recent years, deficiency or relative  deficiency of potassium (K) in the soil is an important limitation to maize production. Maize inbred lines  tolerant to K deficiency (90-21-3) and sensitive to K deficiency (D937) were grown in potassium  deficiency field conditions. We investigated the root morphology, leaves stay-green, K...

Author(s): WANG Xiao-lei, YU Hai-qiu, LIU Ning, YI Bing, WEN Jing, LI Xing-tao, ZHAO Xin-hua and CAO Min-jian#

March 2012

Potential ecotourism in the protected area: A case study at Kazdağı (Mt. Ida), Turkey

Kazdaglari (Mount Ida) is one of the important mountain chains situated on the provincial borders of  Çanakkale and Balikesir, on the South of Biga peninsula. Part of the region, which possesses rich  resources in terms of natural and cultural aspects, within the borders of Edremit District of Balikesir  Province has been announced as a “National Park”. National Park and its...

Author(s): Füsun ERDURAN, A. Esra ÖZEL CENGÄ Z and Alper SAÄžLIK