African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6848

Table of Content: 12 October, 2011; 6(22)

October 2011

Cocoa swollen shoot virus disease situation in Ghana: A review of current trends

  The cocoa swollen shoot virus disease (CSSVD) continues to spread in Ghana despite many years of the cutting-out of infected trees and their ‘contacts’. Records gathered by the cocoa swollen shoot virus disease control unit (CSSVDCU) indicate that between October 2006 and September 2010, 28,486,309 visibly infected and ‘contact’ cocoa trees were removed countrywide. Out of this number,...

Author(s):   O. Domfeh⊃, H. Dzahini-Obiatey⊃, G. A. Ameyaw⊃, K. Abaka-Ewusie⊃ and G. Opoku⊃  

October 2011

The effect of immunization against Xinjiang fine wool sheep inhibin a on the reproductive traits of rats

  The purpose of this study was to investigate the effects of the Xinjiang fine wool sheep inhibin a subunit on the reproductive traits. Rats were immunized with the Xinjiang fine wool sheep inhibin a subunit recombinant protein, using Freund’s adjuvant as the adjuvant. Compared to the control group, the antibody titers increased steadily in the 1 mg inhibin-immunized group, and the...

Author(s): Xiaogang Du,#, Zhihuan Wu,#, Chengyun Zhang, Huaiyu Zhang, Hanmei Liu, Zhiyu Chen and Xianyin Zeng

October 2011

Isolation and in vitro screening of Bacillus thuringiensis and clonostachys rosea as biological control agents against sheep nematodes

    Biological control agents are possibly the best alternative to agrochemicals for the control of livestock nematodes. Strains of Bacillus thuringiensis (Bt) and Clonostachys rosea were isolated from grazing pastures collected from pens of livestock. A total of 25 isolates of B. thuringiensis and 10 of C. rosea were successfully isolated. In...

Author(s): M. A. Baloyi, M. D. Laing and K. S. Yobo

October 2011

Prevalence and host related risk factors of bovine trypanosomosis in Hawagelan district, West Wellega zone, Western Ethiopia

  A survey was conducted in Hawagelan district, West Wellega zone, western Ethiopia from November 2009 to March 2010 to determine the prevalence of bovine trypanosomosis and the prevailing species of trypanosomes as well as to assess host related risk factors. Blood samples collected from 384 randomly selected cattle were subjected to parasitological and haematological analysis. The overall...

Author(s): Mihreteab Bekele and Mubarik Nasir

October 2011

Effects of Spirulina platensis on performance, digestibility and serum biochemical parameters of Holstein calves

  This study was conducted to investigate the effects of different amounts of Spirulina platensis (SP) on the performance and digestibility of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), organic matter (OM), plasma cholesterol, LDL, HDL, BUN, albumin and globulin concentration of Holstein calves. Twenty four Holstein calves were randomly assigned to 4 treatments including 0, 2,...


October 2011

Bovine colostrum as immunomodulator for prevention of Escherichia coli diarrhea in weaned rabbits

  The study was conducted on weaned New Zealand White rabbits aged 4 to 5 months. First milking liquid bovine colostrum (BC) was lyophilized to make powder. Three different doses of BC (200, 400 and 600 mg/kg b.wt. per os for 15 days) were evaluated for immunomodulatory potential against cow milk control. The best immunomodulatory dose was then evaluated for assessing the potential of BC for the prevention...

Author(s): L. Nagaraja, A. A. Dar, N. N. Pandey and D. B. Mondal

October 2011

Genetic diversity of sugar beet parents and hybrids grown in rhizomania conditions

  In this study, properties and level of resistance of genetically sugar beet genotypes of parents and hybrids growing in field infested with rhizomania are estimated. For this investigation, we used 14 tetraploids multigerm genotypes-pollinators (Rh1- Rh14 4n MM) and 6 maternal lines, 2n mm MS, (diploid monogerm, male sterile lines with their sterile analog): 2MS, 7MS, 5MS, 1MS, 3MS, and 4MS. Also, hybrids,...

Author(s):   Jelica ZIVIC, Desimir KNEZEVIC, Mirjana MILOSEVIC, Sasa PETROVIC and Ivica STANCIC  

October 2011

Technical efficiency of cocoa farms in Cross River State, Nigeria

  This study was carried out to evaluate the technical efficiency of cocoa farms in Cross River State, Nigeria. Multi stage sampling technique was used to select four local government areas (LGAs) and fifteen cocoa farmers per LGA, to give a total of sixty farmers. The sampled LGAs constitute about 30% of the local government areas in the State. Data collection was carried out with the aid of a structured and...

Author(s): Oguntade Adegboyega Eyitayo, Okafor Chris, Mafimisebi Taiwo Ejiola and Fatunmbi Temitope Enitan

October 2011

Changes in chemical, microbiological and sensory properties of marinated seafood salad during storage period

  This study aimed to determine changes in chemical, microbiological and sensory properties of marinated seafood salad that contains squid, surimi, mussel, shrimp and octopus, during the storage period of five months. According to results of microbiological analyses, all raw materials and production process were fitted into hygienic rules. The acetic acid/salt ratio of all raw materials was in the...

Author(s): Canan Hecer

October 2011

Effects of sprouting time on biochemical and nutritional qualities of Mungbean varieties

  Effect of sprouting time (0, 24, 48, 72 and 96 h) on the biochemical and nutritional qualities of two mungbean varieties (Ramzan and NM-98) was investigated. Seeds of mungbean varieties were sprouted in laboratory under room conditions (25°C). Starting from the second day of germination, and every day, dishes of germinating seeds were removed, oven-dried, weighed and milled for proximate and chemical...

Author(s): Syed Adil Shah , Aurang Zeb, Tariq Masood, Nadia Noreen , Sayed Jaffar Abbas, Muhammad Samiullah, Md. Abdul Alim and Asim Muhammad

October 2011

Correlation and path coefficient analyses of some yield related traits in finger millet (Eleusine coracana (L.) Gaertn.) germplasms in northwest Ethiopia

  The associations among yield components and their direct and indirect influence on the grain yield of finger millet were investigated. For this purpose, eighty-eight finger millet (Eleusine coracana (L.) Gaertn.) genotypes were tested using an augmented randomized complete block experimental design with two replications at Adet Agricultural Research Center in 2008. Accordingly,...

Author(s):   Andualem Wolie and Tadesse Dessalegn

October 2011

Effect of Persian galbanum (Ferula gummosa L.) extract on seed germination and growth of some weeds

  Persian galbanum seeds have hard dormancy, and washing has a good effect on seed dormancy breaking; it seems that Galbanum seeds are a source of inhibitor material. In this study, we evaluated the allelopathic effects of seed, stem and root aqueous extract of Galbanum in three concentrations (10, 5 and 2.5%) on seed germination and seedling growth of three weeds (common amaranth, purslane and wild barley)...

Author(s): A. Shahbazi, M. Lotfi, Kh. Mostafavi, G. Asadian and A. R. Heidarian

October 2011

Factors controlling suspended sediment yield from catchments in central Ardabil Province, Iran

  Twenty two catchments were equipped to hydrometric stations and 9.5 to 7482 km2 were selected in central areas of Ardabil Province, Iran, and have been a site for collection of suspended sediment yield data since 46 years ago. Various catchment properties were analyzed in order to recognize the effective factors controlling suspended sediment yield. Selected effective factors were mapped and classified...

Author(s): Abazar Esmali Ouri and Ardavan Ghorbani

October 2011

Levels of anti-oxidants in different parts of moringa (Moringa oleifera) seedling

  Moringa (Moringa oleifera) tree is known as a medicinal plant, with every part of the plant edible and rich in anti-oxidants. However, there is little information on these anti-oxidants distribution in the plant; these compounds are produced at different concentrations in different parts of the plant. This research, investigated the levels of anti-oxidants in different parts of the plant. Seedlings were grown...

Author(s):   S. Z. Tesfay, I. Bertling, A. O. Odindo, T. Seyoum Workneh and N. Mathaba  

October 2011

Optimizing seed germination threatened endemic species of the Persian shallot (Allium hirtifolium boiss.)

  Persian shallot grows as a wild plant in Zagros Mountain. In this experiment, attempt was made to study the different aspects of Allium hirtifolium Boiss germination for the first time in controlled laboratory conditions. In the first experiment, treatments were 0, 2, 4, 6 and 8 weeks of stratification. In the second experiment, seeds were imbibed in 0, 500 and 1000 ppm GA3 for 12 h and...

Author(s): Etemadi Nematollah, Haghighi Maryam and Zamani Najmeh

October 2011

Effect of calcium chloride (CaCl2) on postharvest quality of apple fruits

  The purpose of this research was to estimate the shelf-life and to study the behavior of ‘Malus domesticacv. ‘Jonagold’ apple kept at 0 to 2°C in a normal atmosphere. The effects of postharvest CaCl2 applications on shelf-life and quality attributes of apple after harvest or cold storage up to 5 month were determined. The experiment was carried out in 2010 and 2011 and fruit...

Author(s):     Elham Shirzadeh, Vali Rabiei and Yavar Sharafi  

October 2011

Effect of plant population, fruit and stem pruning on yield and quality of hydroponically grown tomato

  A study was conducted in 2009 to 2010 and 2010 to 2011 to investigate the effect of plant population, and fruit and stem pruning of hydroponically grown tomatoes in a 40% (black and white) shade-net structure at the ARC-Roodeplaat VOPI. An open bag hydroponic system containing sawdust as a growing medium was used in this experiment. Tomato plants were subjected to three plant populations (2, 2.5 or 3...

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

October 2011

Tomato yellow leaf curl virus (TYLCV), identification, virus vector relationship, strains characterization and a suggestion for its control with plant extracts in Iraq

    Tomato yellow leaf curl begomovirus (TYLCV) was identified on the basis of symptoms on test plants, transmission by whiteflies Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) biotype B and its incubation period in the insect. Symptomatic tomato plants showing leaf curling, leaf blade reduction, distortion and general stunting, indicative of TYLCV in greenhouses, were transplanted into...

Author(s):   Rakib A. Al-ani, Mustafa A. Adhab, Samir A. H. Hamad and Saber N. H. Diwan  

October 2011

Ramifications of different externally applied nitrogen sources on the physiology and yield of hybrid maize (Zea mays L.)

  A two year field experiment was conducted to evaluate the ramification of nitrogen sources on the physiology and yield of hybrid maize (Zea mays L.) at the Agronomic Research Area, University of Agriculture Faisalabad, Pakistan, during 2008 to 2009. The experiment design was a randomized complete block design (RCBD) under factorial arrangement with three replications. Treatments comprised two hybrids:...

Author(s):   Muhammad Waseem, Asghar Ali, Muhammad Tahir and Mumtaz Hussain  

October 2011

Factors influencing the effectiveness of rice supervisor’s technical advice: The case of Mazandaran Province, Iran

  The current research involves the factors influencing the effectiveness of rice supervisor’s technical advice (RSTA) in Mazandaran province from the farmers' point of view. The method used in this research is descriptive-correlation and comparative, which has been done by survey. A quantitative approach is applied to identify the most important factors. In this regard, the research population...

Author(s): Amir Ahmadpour and Hadi Moumeni Helali

October 2011

Determination of micronutrients in tea plantations in the eastern Black Sea Region, Turkey

  This research was carried out to determine micronutritients status of tea (Camellia sinensis L.) plantations in the Eastern Black Sea Region of Turkey. Soil and leaf samples were taken from the 220 tea gardens belonging to 36 tea processing plants during the 2nd shoot period (between July 15th and 30th July in 2003) by taking into consideration the tea planted areas and production potentials of...

Author(s): Mehmet Arif Özyazıcı, Gülen Özyazıcı and Orhan Dengiz

October 2011

Strand properties of Leucaena leucocephala (Lam.) de wit wood

Author(s):   Wan-Mohd-Nazri W. A. R., Jamaludin, K., Rahim, S., Nor Yuziah, M. Y. and Hazandy Abdul-Hamid  

October 2011

A reference model of RFID-enabled application for traceability of foods production and distribution

  This paper employs architecture of integrated information system (ARIS) as the holistic modeling methodology for analyzing step-by-step processes and radio frequency identification (RFID) as the tracking device for recording all procedures in logistics. The major purpose of this study is to establish an information traceability system on agricultural product for coordination and quality control over...

Author(s):   Shih-Chih Chen, Kevin Kuan-Shun Chiu, Huei-Huang Chen, Yucheng Kao and Ching-Fen Chang