African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6562

Table of Content: 12 December, 2011; 6(30)

December 2011

Optimization of number of sampling points required for studying the vineyard soil

  High variability of pH on a very small scale has effects on growth of two grapevine varieties on rootstock Kober 5BB: Riesling and Pinot Noir. A number of 104 soil samples were taken from an experimental area from two depths. The aim of this experiment was to find the optimum number of samples for pH studies, and to implement the obtained results in further investigation on experimental fields. Therefore, in...

Author(s):   Djordjević Aleksandar, Aleksić Velimir, Savanović Marija, Savanović Rajko and Milojković Boban

December 2011

Influence of some culture media on antifungal activity of Pseudomonas fluorescens UTPF61 against the Sclerotinia sclerotiorum

  Fluorescent pseudomonads are ubiquitous bacteria that are common inhabitants of the rhizosphere and are the most studied group within the genus Pseudomonas. Strain UTPF61 is a biocontrol agent againstSclerotinia wilt of sunflower, an important disease of sunflower caused by Sclerotinia sclerotiorum. Thisbacterium was selected out of 47 strains. It was grown in eight culture media...

Author(s):   Fereshteh Heidari-Tajabadi, Masoud Ahmadzadeh, Asma Moinzadeh and Maryam Khezri  

December 2011

Effect of subtropical forests on water quality in Southwestern China

  The objective of the study was to investigate the effects of different components of typical forests on water quality during the process of rainfall to runoff. Three typical forests, a Pinus massoniana × Gordonia acuminata Chang mixed forest (I1), a Phyllostachys pubescens forest (I2), a shrub forest (I3)) and a bare land (a clear-cut), cited as a control plot (CK), at Jinyun...

Author(s): LIU Nan, WANG Yujie# and WANG Yunqi#   #Both authors contributed equally.  

December 2011

Effect of rate and application depth matrix-I calcium carbide based formulation on growth, yield and nitrogen uptake of wheat

  Calcium carbide (CaC2) is a source of acetylene gas which is a well known nitrification inhibitor and converts into ethylene in the soil environment. Ethylene is a potent plant growth regulator and influences a number of biological processes from root growth to leaf senescence. A pot experiment was conducted to study the effect of a calcium carbide based formulation, Matrix-I (21% calcium carbide, 58%...

Author(s): Rashid Mahmood, Muhammad Yaseen, Anser Ali, Javaid Iqbal, Muhammad Sarwar and Safdar Hussain

December 2011

Effect of water-dispersible colloids in manure on the transport of dissolved and colloidal phosphorus through soil column

  To investigate the effect of water-dispersible colloids derived from swine manure on the potential risks of phosphorus (P), migration behavior of P in saturated-flow columns was compared in the presence and absence of water-dispersible colloids of manure in influent. It was found that dissolved phosphorus (DP) accounted for a majority of total P (65-98%) in the effluent with deionized water treatments, while...

Author(s):   Ling Zang, Guangming Tian, Xinqiang Liang, Junzhi Liu and Guiqun Peng  

December 2011

Agricultural assistances in China: An analysis of farmers’ opinions

  The purpose of this study was to examine farmers’ needs for agricultural assistance to help improve production, marketing, and farm finance. Though agricultural assistance has become more available to China’s rural farming communities, little if any, research is available to evaluate the impact of the assistance on farming efficiency. Which farming groups have the highest demand for the assistance...

Author(s): Pei Xu, Xiangzhi Kong, Zhen Zhong and Lynn Williams

December 2011

Analysis of the degree of cross-fertilization and auto-fertility and their impact on breeding faba bean (Vicia faba L.) cultivars grown in Sudan

  In faba bean, the degree of cross-fertilization and auto-fertility is a crucial character in any breeding program. The degree of cross- and auto-fertility of four faba cultivars were assessed at three locations in Sudan, using hilum colour as a morphological marker. The variation between the cultivars and between locations for the degree of cross-fertilization was extremely small, which ranged from 10.6 to...

Author(s): Seif Gasim, Awadalla Abdelmula and Jamal Khalifa

December 2011

Allelopathic effects of Rhazya stricta decne on seed germination and seedling growth of maize

  This study was designed to investigate the allelopathic potential of Rhazya stricta leaves and stem on Zea mays. It showed that stem of aqueous extracts of R. stricta present inhibitory effects on germination and seminal root numbers, while leave extract significantly decreased the plumule and radical growth of test specie. The inhibitory effects were increased proportionally...

Author(s):   Musharaf Khan, Farrukh Hussain, Shahana Musharaf and Imdadullah  

December 2011

Effect of end-season drought stress on chlorophyll fluorescence and content of antioxidant enzyme superoxide dismutase enzyme (SOD) in susceptible and tolerant genotypes of durum wheat

  This experiment was conducted with 12 genotypes of durum wheat originating from Iran and Azerbaijan Republic in both stressed and non-stressed conditions in Agricultural Research Station, Islamic Azad University of Ardabil in a randomized complete blocks design with 4 replications and in two years, 2008 to 2009 and 2009 to 2010 agricultural years. In this experiment, in addition to physiological traits,...

Author(s): Majid Khayatnezhad, Mohammad Zaeifizadeh and Roza Gholamin  

December 2011

Estimated value of forest conservation in Iran: A case study of Fars Province

  The aim of this study is to estimate the value of forest conservation through Fars rate and review conditional factors. For this purpose, the required information and data were collected from the citizens and visitors of Fars province's forests through a questionnaire. The information in the questionnaire includes personal information in four areas and social status like economic subjects, attitude or...

Author(s): S. N. Mousavi and S. M. R. Akbari

December 2011

Performance evaluation of manual cowpea thresher

  Manual cowpea thresher was previously designed and constructed. Its performance evaluation is now reported. Performance test was replicated five times and averages of each trial were taken (50, 100, 150, 200 and 250) kg of two cowpea varieties: indigenous brown (Variety A) and IT97K-499- (SAMPEA -10) white (Variety B). Parameters considered were: Threshing efficiency (Te), Seed damage (Sd) and Mechanical...

Author(s): F. A. Maunde

December 2011

Distribution of tractor available workdays over the southeastern Anatolia project (GAP) area

  Determination of available workdays of a tractor for field operations is very significant in design, development, and selection of efficient machinery systems for agricultural operations. Available workdays vary and generally based on average daily temperature and amount of precipitation. In this study, an excel program was developed to determine the available workdays of a tractor in field operations....

Author(s): Cevdet Saglam and Ibrahim Tobi

December 2011

Study for the expression of Adiponectin, fatty acid binding protein (FABP)4, stearoyl-CoA desaturase (SCD) genes and the methylation of SCD promoter in porcine muscle and fat tissues

  East Asian consumers such as Korean and Japanese prefer the roasted pork, because lots of the researches have been carried out for the genetic improvement of intramuscular fat contents in pig. The fatty acid binding protein (FABP)4 and stearoyl-CoA desaturase (SCD), related to lipid metabolism are critical genes responsible for the fat content trait in meat, and the Adiponectin is a...

Author(s):   Eun Seok Cho, Seul Gi Kwon, Jae Hwan Kim, Da Hye Park, Tae Wan Kim, Juhyun Nam, Ik Soon Jang, Jong-Soon Choi, Woo Young Bang# and Chul Wook Kim#  

December 2011

Heavy metal accumulations of Allium cepa L. as a bioindicator for air pollution in EreÄŸli, Turkey

  EreÄŸli, a province with ıron-steel industrial activities, is situated on the coast of Black Sea in Northwestern Anatolia. Heavy metal pollution caused by industrial activities is a threat to environmental quality and human health. Allium cepa L. is a bioindicator due to its sensitivity to environmental pollution. Fe, Hg, Zn, Hg, Crshowed greater accumulation in its leaves in four different...

Author(s): Meltem MaraÅŸ Atabay,  Aysel KekillioÄŸlu and Metin Arslan

December 2011

Insecticidal activity of Boscia senegalensis (Pers.) Lam ex Poir. on Caryedon serratus (Ol.) pest of stored groundnuts

  This publication describes the efficacy of Boscia senegalensis for the control of the groundnut bruchid,Caryedon serratus (Ol.). Crushed B. senegalensis fresh leaves and fruits were mixed with groundnuts and stored in hermetic containers. A high sensitivity of C. serratus adults at relatively low concentrations of the plant was observed. After 24 h of exposure, fresh...

Author(s): Momar Talla GUEYE, Dogo SECK, Seynabou BA, Kerstin HELL, Mbacké SEMBENE, J-P.WATHELET and Georges LOGNAY