African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6859

Table of Content: 9 January 2014; 9(2)

January 2014

Improving hybrid cotton profitability and micronaire with stripcropping of soybean+pigeon pea with conservation furrows, Mn and B application

Micronutrients and supplemental irrigations were evaulated in split plot design to improve hybrid cotton micronaire in last picking. Farmer's practices (FP) of sole hybrid cotton, soybean+pigeon pea (4:1) and cotton + pigeon pea (8:2) stripcroppings were compared alongwith soybean as intercrop in the existing cotton+pigeonpea stripcropping (8:2) for micronutrient requirement, rain water conservation and...

Author(s): Ambati Ravinder Raju

January 2014

Effect of sowing dates and seed rates on some rice cultivars

Two field experiment were conducted at Rice Research and Training Center (RRTC) – Sakha, kafr- El sheikh, governorate, Egypt in 2006 and 2007 seasons., to study the effect of seed rates under different of sowing dates (20th April, 1st May and 10th May) on some rice varieties. Three rice varieties Sakha 101, Sakha 103, Sakha 104 were tested. Three seed rates were used (48, 95 and 144 kg /ha). Nitrogen fertilizer...

Author(s): Ali A. Abou Khalifa, W. ELkhoby and E. M. Okasha

January 2014

Summer pruning in fruit trees

Pruning has been practiced for ages in controlling tree size because it has much less stimulating effect on shoot re-growth. The pruning is done to restrict excessive vegetative growth and to maintain a balance between leaf/fruit ratio, fruit size, fruit colour and other quality attributes. Excessive tree vigour can reduce flower bud formation, fruit set and result in reduced fruit quality. Summer pruning by removing...

Author(s): Naira Ashraf and Moieza Ashraf

January 2014

Variation, correlation and path coefficient analyses in seed yield and related characters in local accessions of African Yam Bean (Sphenostylis stenocarpa) from Southern Nigeria

Local accessions of African Yam Bean, a poorly studied and under-utilized but important food crop, from Abia, Akwa Ibom and Cross River states of Southern Nigeria were studied for variation in seed yield and pod characteristics. Correlations were carried out on the studied characters to determine the degree of mutual association among them while path coefficient analysis was used to partition the correlation...

Author(s): Aniefiok Ndubuisi Osuagwu, Peter N. Chukwurah, Imo A. Ekpo, Emem E. Akpakpan and Reagan B. Agbor

January 2014

The effect of comboplough on some soil physical properties of Universiti Putra Malaysia Research Park

A disk plough combined with a set of rotary blades (comboplough) for land preparation has been designed, fabricated and tested. The concave disk cut and inverted layers of soil to bury surface material. The soil in contact with the surface of disk would be cut and pulverized by the rotary blades. Normal multiple tillage operations were reduced to a single pass and thus reduced the number of field trips as compared to...

Author(s): A. Hashemi, D. Ahmad, J. Othman and S. Sulaiman

January 2014

Evaluation of light extinction coefficient, radiation use efficiency and grain yield of soybean genotypes

This experiment was performed at the Research Center of Agriculture and Natural Resources, Ardabil, province (Moghan), Iran, in 2009 and 2010. Light extinction coefficient, radiation use efficiency, yield and yield components of 17 soybean genotypes were evaluated. Number of seed per plant was significantly affected by years. In both years, all traits among genotypes were significantly different. In both years, the...

Author(s): Ali Ebadi, Kamel Sajed and Amir Gharib-Eshghi

January 2014

Financial and income approach analysis in micro (MEs) and small/medium sized enterprises (SMEs): A comparative approach in fruit and vegetables processing industry in Italy

The aim of the research is to evaluate the differences between economic and financial results in a sample of micro enterprises (MEs) and small / medium sized enterprises (SMEs) in fruit and vegetables processing industry in Italy. The firms included in the sample operate in an industry characterized by high capital intensity; this character is caused by the length of working capital cycle and high level of fixed asset...

Author(s): Mattia Iotti and Giuseppe Bonazzi

January 2014

Grain yield adaptability and stability of blackeyed cowpea genotypes under rainfed agriculture in Brazil

The present study aimed to evaluate the grain yield adaptability and stability of 20 blackeyed cowpea genotypes under rainfed agriculture in North, Northeastern and Central/Western Brazil. Three parametric methodologies and one non-parametric methodology were used. We found significant differences among genotypes, environments, and interaction between genotypes and environments. The traditional method indicated that the...

Author(s): Hendrie Ferreira Nunes, Francisco Rodrigues Freire Filho, Valdenir Queiroz Ribeiro and Regina Lúcia Ferreira Gomes

January 2014

A highly efficient and improved protocol for exploitation of somaclonal variation for enhancing alien gene introgression in wide cross hybrid of Oryza sativa/Oryza brachyantha

The objective of the present study was to develop an effective protocol for optimum callus induction, duration of culture and size of explants of primordial panicle of inter-genomic hybrid of Oryza sativa/ Oryza brachyantha. It was observed that, primordial panicle at very young stage (0.5 to 1.5 cm) takes hardly 5 to 7 days for callus initiation. The two basic media tested, the Murashige and Skoog (MS) medium and...

Author(s): L. K. Bose, M. Kar, B. Bhattacharya, N. N. Jambhulkar and O. N. Singh

January 2014

Effect of glyphosate on weed management and grain yield in Kharif maize of transgenic stacked and conventional maize hybrids for higher productivity

A field experiment was carried out at Tamil Nadu Agricultural University, Coimbatore during kharif seasons of 2010 and 2011 to study the effect of Glyphosate on weed management and grain yield in kharif maize of transgenic stacked and conventional maize hybrid. This investigation was conducted with the following objectives to evaluate the weed control efficiency and crop productivity with K salt of glyphosate...

Author(s): Sivagamy Kannan and Chinnusamy Chinnagounder

January 2014

Fabrication and characterisation of nanoporous zeolite based N fertilizer

A laboratory study was undertaken to improve the nitrogen (N) use efficiency of urea using microporous natural zeolite (Z) and nanoporous zeolite (NZ) as substrate. The fertilizer composite was prepared under ambient conditions by impregnation urea in adsorbents. Z and nanoporous-zeolite measuring a dimension of 794, 87 nm were used for this study. The commercial urea fertilizer and adsorbents were blended or fused at...

Author(s): A. Manikandan and K. S. Subramanian

January 2014

Soil quality indicators under continuous cropping systems in the arid ecosystem of India

Effect of cropping systems (CS) on the soil quality (SQ) and its determinants was assessed for the clay loam soil of Hisar, India. Collected surface soil samples were analyzed for four physical indicators viz. bulk density (BD), saturated hydraulic conductivity (SHC), porosity and mean weight diameter (MWD) seven chemical indicators viz. pH, electrical conductivity (EC), organic carbon (OC), nitrate nitrogen (NO3-N),...

Author(s): Nishant K. Sinha, M. Mohanty, Bharat P. Meena, Hiranmoy Das, Usha K. Chopra and Anil K. Singh

January 2014

Drip fertigation could improve source-sink relationship of aerobic rice (Oryza sativa L.)

The present study investigated variations among different water and fertilizer levels of aerobic rice. The data collected to assess the source-sink relationship of aerobic rice were leaf number, individual leaf size, soluble protein content and leaf area duration expressed as source strength and moreover sink strength expressed using spikelet number, thousand grain weight, grain filling duration and grain filling rate....

Author(s): K. Vanitha and S. Mohandass

January 2014

Studies on the epidemiology of white rust and Alternaria leaf blight and their effect on the yield of Indian mustard

High severity of white rust and Alternaria leaf blight diseases is an important constraint in the production of Indian mustard. An experiment was conducted at the Regional Research Station, Gurdaspur during Rabi, 2011 to 2012 to investigate the role of weather conditions like humidity, temperature and rainfall on these diseases and to measure the loss in yield due to them. The first visible symptoms of white rust first...

Author(s): R. S. Bal and A. Kumar