African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6842

Table of Content: 7 August, 2012; 7(30)

August 2012

Addressing the information problem in agriculture via agrobiodiversity: Streamlining the issues, challenges and policy questions

The purpose of this paper is to show how agrobiodiversity addresses the inherent information problem that agriculture faces and present the issues, challenges and policy questions that need to be addressed to undertake rural development and maintain agrobiodiversity. It has been shown that ex-situ and in-situstrategies address the different aspects of the information problem in agriculture and...

Author(s): Edilegnaw Wale    

August 2012

An assessment of farm-to-market link of Indonesian dried seaweeds: Contribution of middlemen toward sustainable livelihood of small-scale fishermen in Laikang Bay

For many years, sustainable seaweed farming has been practiced for the revitalization of village-level economy of small-scale fishermen in Laikang Bay. This study sought to identify the characteristics of small-scale seaweed farming in South Sulawesi Province in Indonesia, to assess the roles of middlemen in supporting seaweed production and marketing, and to investigate the marketing channels of dried seaweed...

Author(s): Achmad Zamroni, and Masahiro Yamao        

August 2012

Construction of control charts in production process of soybean oils

When dealing with a production line, we usually think that all products are exactly alike, but if you look a little more closely, we will realize that they are not as equal as well, and if these differences are large, it will be easily noticed. The whole process, however well designed and controlled as it is, has a variability component that cannot be eliminated. It is the natural variability of the process, which is...

Author(s): Suzana Leitão Russo, Tanara Elisa Kreibich, Maria Emilia Camargo, Gabriel Francisco da Silva and Simone de Cássia Silva      

August 2012

Establishment of a highly efficient in vitro regeneration system for Chinese kale (Brassica oleracea L. var. alboglabra)

The effects of different combinations and concentrations of plant growth regulators on differentiation frequency were studied using hypocotyls, cotyledons, and flamingo-bills as explants to establish an effective in vitroregeneration system for Chinese kale. The results showed that hypocotyls on a culture medium consisting of Murashige and Skoog (MS) medium + 1% sucrose + 2.0 mg/L BAP + 7.0 mg/L AgNO3 achieved...

Author(s): Yaoguo Qin, Jianjun Lei, Bihao Cao, Guoju Chen, Yongli Zhai and Cuiqin Yang      

August 2012

Influence of poultry manure application on growth and yield performance of accessions of sesame (Sesamum indicum L.) in a derived savanna transition zone of South eastern Nigeria

A two-year study was carried out in the research farm of the Department of Crop Science, University of Nigeria, Nsukka, to test the effects of accessions and poultry manure rates on the growth and yield of sesame in the derived savannah zone of south eastern Nigeria. Three rates of poultry manure (0, 5 and 10 tons/ha) and four accessions of sesame (Zuru, NCRI-BEN O1M, 43 – 9 – 1 and NCRI-BEN O3L) were...

Author(s): Ogbonna, P. E. and Umar-Shaba, Y. G.      

August 2012

Ontogeny of the tuber crop Plectranthus edulis (Lamiaceae)

Plectranthus edulis (Lamiaceae) is one of the economically important tuber crops of the genus Plectranthus. It is grown in mid and high altitude areas in parts of Ethiopia. The structure of this plant and its development in time has not been described in detail. Two similar experiments were carried out at Awassa and Wondogenet (Southern Ethiopia) with two cultivars (Lofuwa and Chankua) and 20 harvest dates...

Author(s): Mulugeta Taye, W. J. M. Lommen and P. C. Struik        

August 2012

Influence of potassium solubilizing bacteria on crop productivity and quality of tea (Camellia sinensis)

A field experiment was conducted to study the efficacy of indigenous potassium solubilizing bacteria (KSB) in combination with various dosages of potash fertilizers along with recommended dose of nitrogen (N) and phosphorus (P) fertilizers in tea plants. Soil and leaf samples were drawn from the respective plots and they were subjected for the analysis of various parameters related to nutrients and quality aspects....

Author(s): B. Bagyalakshmi, P. Ponmurugan and S. Marimuthu      

August 2012

Callus induction and plant regeneration of Sarawak rice (Oryza sativa L.) variety Biris

Sarawak Biris rice is a strong aromatic rice variety which can thrive well in rice fields prone to flood, drought and other soil constraints. Tissue culture of Biris rice is important in producing planting materials and conducting genetic improvement work. The present study was conducted to induce callus from Biris rice seed and assess its regeneration ability. Dehusked mature seeds were used as starting materials for...

Author(s): A. Libin, P. J. H. King, K. H. Ong, J. K. Chubo and P. Sipen        

August 2012

Growth and nodulation response of soybean (Glycine max L) to Bradyrhizobium inoculation and phosphorus levels under controlled condition in South Western Ethiopia

The study was conducted to investigate growth and nodulation response of Clark 63-K soybean variety toBradyrhizobium japonicum inoculation and phosphorus levels under lath house condition at Jima Agricultural Research Center in 2010. The crop was evaluated in terms of nodule number, nodule volume, nodule dry weight, shoot nitrogen content, plant height, number of pod bearing branches, shoot dry matter and root dry...

Author(s): Workneh Bekere, Endalkachew Wolde-meskel  and Tesfu Kebede      

August 2012

Enhancing soybean rust resistance through Rpp2, Rpp3 and Rpp4 pair wise gene pyramiding

The threat posed by soybean rust (Phakopsora pachyrhizi) on soybean production is worsened by resistance breakdown associated with single gene resistance present in most cultivars. Few studies have however been undertaken to use mapped simple sequence markers for gene pyramiding to enhance rust resistance. This study validated use of identified simple sequence repeat markers for gene pyramiding, and determined the most...

Author(s): Maphosa M., Talwana H. and Tukamuhabwa P.      

August 2012

“A study of the impact of irrigation with different intensities on potassium efficacy and increased yield of wheat autumn cultivation in loessal soils with high specific surface area and electrical truncated diffuse double layers”

In order to examine the effect of irrigation on wheat yield with a high specific surface area in a soil comprising illite clay that causes reduced usability of potassium for wheat and loss in potassium absorption and yield, three dry- farming treatments (which includes transparent, black mulches and non- plastic mulch) and irrigated treatments (consist of saturated flooding and unsaturated rain and drop irrigations)...

Author(s): Bagheri, M. R.⊃, Movahedi Naeini, S. A. R.⊃ and Yeritsian, S.      

August 2012

The drying of onion slices in two types of hot-air convective dryers

Drying experiments were carried out using two types of convective hot-air dryers such that the hot air passed perpendicularly through a thin layer of onion slices in one dryer while the air passed parallel to the thin layer in the second dryer. The drying air temperatures were 50, 60 or 70°C, while air velocity was set at 0.5, 1.0 or 2.0 m/s. The drying behavior of onion slices under the aforementioned experimental...

Author(s): Hany S. EL-Mesery and Gikuru Mwithiga        

August 2012

The effects of heading and benzyladenine applications on branching of apple (cvs. ‘Red Delicious’ and ‘Golden Delicious’) trees in nursery

This study was carried out in two independent experiments on one year old apple (Malus domestica cvs. ‘Red Delicious’ and ‘Golden Delicious’) nursery trees with the main purposes of improving lateral shoot formation and increasing the quality of trees. In the first experiment, the effect of different heading treatments (0, 40, 60 and 80 cm above ground) and in the second experiment,...

Author(s): M. Zamanipour, E. Ganji Moghadam and A. Asgharzade      

August 2012

Regional scale variation in forest structure and arborous layer aboveground biomass along altitudinal gradient in the Qinling Mountains

With the decrease of forest area and increase of greenhouse gases like CO2, it is increasingly important to estimate forest biomass and carbon storage. For a better assessment of the variation of regional forest structure and arborous layer biomass at different altitudes in Qinling forest area, we studied the environment factors and interference factors of local forest, on the 50 selective sampling plots (800 to 2300...

Author(s): Weizhong Li, Le Kang, Huai Chen, Xiaofang Zhang, Hongke Hao, Lili Wang, Qing Wang, Peng Liand Pengxiang Zhao        

August 2012

Boll weevil feeding preference on squares at different ages and square shedding time of cotton cultivars

The boll weevil is considered the major pest of cotton in the Western Hemisphere due to the large potential for direct destruction of fruiting bodies, survival on the fallow ground and dispersal ability. The purpose of this study was to evaluate the feeding preference of Anthonomus grandis for squares at different ages, as well as the abscission of attacked squares on five cotton cultivars. The experiment was...

Author(s): José Fernando Jurca Grigolli, Leandro Aparecido de Souza, Diego Felisbino Fraga and Antonio Carlos Busoli.      

August 2012

Screening of various pomegranate (Punica granatum L.) selections of Kashmir valley

The present investigation was carried out in order to document the available genetic variability of several morphological quantitative and qualitative characters, and to select elite pomegranate genotypes which have superior yield and quality traits. Intensive survey was conducted in different areas of district Srinagar between 2009 and 2010. Observations were recorded on morphological, physical and chemical characters,...

Author(s): Imtiyaz A. Wani, M. Y. Bhat, Abid A. Lone, Shaiq A. Ganaie, M. A. Dar, G. I. Hassan, M. M. Mir, and I. Umar       

August 2012

Effects of dietary soybean curd residue on the growth performance and carcass characteristics in Hanwoo (Bos taurus coreanae) steer

This study was conducted to determine the effect of dietary soybean curd residue (SCR) on the growth performance and carcass characteristics in Korean native cattle, Hanwoo steer (Bos taurus coreanae). A total of 15 cattle (8 month old and averaging 238.5±12.4 kg in weight) were divided into three dietary groups and then fed a diet containing 0 (T1, control), 25 (T2) and 35% SCR (T3) for 22 months. Meat (M....

Author(s): Kyoung Hoon Kim, Sung Jin Kim, Byong Tae Jeon, Dong Hyun Kim, Mi Rae Oh, Pyo Jam Park, Hyuk Jung Kweon, Baek Yeong Oh, Sun Jin Hur and Sang Ho Moon