African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6671

Table of Content: 4 MAY 2010; 5(9)

May 2010

Photosynthesis, chlorophyll fluorescence and non-structural carbohydrates changes in husk leaves of maize in black soils region of Northeast China

  Two varieties of maize (Zea mays L.) grown in fields in Black soils of Northeast China were tested to study the variation of chlorophyll (Chl) concentration, Chl fluorescence, photosynthetic parameters, and non-structural carbohydrates in husk leaves of maize. The results showed that Chl a, Chl b and total Chl concentrations increased dramatically from silking to grain filling period. Increased...

Author(s): Hong-Wen Xu, Feng-Bin Song, Xian-Can Zhu, and Shu-Yuan Tong,

May 2010

Evaluation of bean (Phaseolus vulgaris) seeds’ inoculation with Rhizobium phaseoli and plant growth promoting rhizobacteria (PGPR) on yield and yield components

  Growing evidence indicates that soil beneficial bacteria can positively affect symbiotic performance of rhizobia. The effect of co-inoculation with plant growth-promoting rhizobacteria (PGPR) and Rhizobium, on yield and yield components of common bean (Phaseolus vulgaris L.) cultivars was investigated in two consecutive years under field condition. PGPR strains Pseudomonas fluorescens P-93...

Author(s): M. Yadegari and H. Asadi Rahmani

May 2010

Capital resource use and allocation in cereal crop enterprise: An empirical evidence from the cereal crop farmers of Benue State, Nigeria

  Lack of evidence on allocation and use of capital resource among small-scale cereal crop farmers of Benue state has led to a continuous depression of capital resource flow in the sub-sector. In providing this evidence, a singular, convenient and sufficient criteria for appraising the use of credit by the small-scale farmers was explored. Using 370 respondents drawn from 6 local government areas of Benue State...

Author(s): I. U. Odoemenem

May 2010

Determinants of the place of sell and price of kale for Kiambu, Kenya

  Kale is a major source of cash for many households in Kenya. A study of households in Kiambu district revealed that kale made the highest contribution to household income among the crops. The farmers of Kiambu sell their kale either in Nairobi, at farm gate, or at the local market and fetch different prices. The farm gate price is highest when kale is sold in Nairobi, but only a small fraction of the farmers...

Author(s): Beatrice Salasyaand Kees Burger

May 2010

The impact of socio-economic characteristics and sources of information on using conservative agricultural methods

  In this research, socio-economic characteristics and information sources of the farmers performing sowing with combined sowing machine which is one of the conservative tillage methods and the farmers performing sowing with conventional methods in wheat production activities are studied. The research was conducted in Tekirdag province. The main population of the study is composed of 95 farm holdings having...

Author(s): Ferhan Savran,  I. Coskun Ceylan and Ozdal Koksal

May 2010

Socio-economic factors influencing adoption of improved fallow practices among smallholder farmers in Western Tanzania

  Declining soil fertility is recognized as one of the major biophysical constraints affecting agricultural production in Sub-Saharan Africa. “Improved fallows” technology, a leguminous trees-based soil replenishment technology was introduced in smallholder farming system in Tanzania to address this problem. The objective of this study was to identify the factors that influence the adoption of the...

Author(s): P. Z. Matata, O. C. Ajay, P. A. Oduol and Aggrey Agumya

May 2010

Fuel consumption distribution for machine and tractor activities in some PTO driven machine operations

  In this study, fuel consumption values needed for the machine to operate (machine activity) and for the tractor to be able to move (tractor mobility) in field conditions in agricultural activities were determined for some PTO driven agricultural machine operations (turbo atomizer and disc fertilizer spreader). Besides, the effects of 540 and 540E PTO options on fuel consumption distribution were evaluated....

Author(s): S. K. Sümer, H. Kocabıyık, S. M. Say and G. Çiçek

May 2010

Effects of molasses and ground wheat additions on the quality of groundnut, sweet potato, and Jerusalem artichoke tops silages

  In this study, the effects of molasses (M) and ground wheat (GW) additions on the quality of groundnut (Arachis hypogaea L.) (GN), sweet potato (Ipomoea batatas L.) (SP) and Jerusalem artichoke (Helianthus tuberosus L.) (JA) tops silages were investigated. GW and M were added in the silages at 0, 2, 4 and 6% in fresh matter basis (W0, W2, W4, W6 and M0, M2, M4, M6). Additions of the silage...

Author(s): Serafettin Kaya and Mehmet Emin Caliskan

May 2010

Effects of small ruminant species and origin (highland and lowland) and length of rest and feeding period on harvest measurements in Ethiopia

  Yearling goats (G) and sheep (S) from highland (H) and lowland (L) areas of Ethiopia were used to determine effects of species and origin and lengths of rest and feeding on harvest measures, particularly carcass surface lightness. The H goat used was Arsi-Bale, and the L goat was Somali. The fat-tail indigenous H sheep is thought to be an Arsi-Bale genotype, and the fat-rump indigenous L sheep genotype was...

Author(s): G. Abebe, G. Kannan and A. L. Goetsch

May 2010

Barriers to playground use for children with disabilities: A case from Ankara, Turkey

  The aim of this paper is to evaluate the playgrounds in terms of the barriers causing restricted use by disabled children. The investigation is carried out through a questionnaire and site surveys in the district of Keçiören-Ankara. The questionnaire was completed by parents of children with disabilities relating to physical and as well as social barriers parents and children are facing using the...

Author(s): Likden Talay, Nevin Akpinar and Nur Belkayali

May 2010

Is envıronmental knowledge enough to motıvate the actıon?

  Developing environmental education curricula needs integrating many dimensions of learning and behavior. Environmental knowledge does not always lead to environmentally responsible behavior. However environmentally responsible behavior is necessary for active participation of citizens to environmental issues. Although Turkey does not have a specific environmental education curriculum, basic environmental and...

Author(s): Işıl Çakcı and Dicle OÄŸuz

May 2010

The relationship between bitterness and drought resistance of almond (Prunus dulcis Mill.)

  Cynogenesis has been suggested to be an adaptive response to drought stress in some plants. To determine the possibility of cyanogenic compounds role in almond resistance to drought stress, three different irrigation levels including moderate and severe stress (soil water potential, Ψsoil = -1.2 and -1.8 MPa, respectively) and a control treatment (Ψsoil = -0.33 MPa) were applied for...

Author(s): K. Arzani, A.Yadollahi, A. Ebadi and M. Wirthensohn

May 2010

Evaluation of morphological characters and male genitalia features of emerald moths (Lepidoptera: Geometridae, Geometrinae) from Turkey

  In this study, we evaluated morphological characters and male genitalia features of emerald moths species (Lepidoptera: Geometridae: Geometrinae) which were collected from 2001 to 2007 in the mediterranean and middle Anatolia regions of Turkey. Fifty-one specimens from 12 species namely Aplasta ononaria Fuessly,Pseudoterpna...

Author(s): Feza Can

May 2010

Genotypic variability and stability of some grain yield components of Cowpea

  The grain yield components of eleven cowpea genotypes were studied in 2006 and 2007 at Abeokuta, Nigeria, to understand the sensitivity of the quantitative traits to heterogeneous environments. The genotypes differ significantly (p ≤ 0.05) in grain yield; the pods/plant and Dfodyld equally differed significantly for the two years. Significant (p ≤ 0.05) genotypic variation in pod length was only in...

Author(s): B. D. Adewale, C. Okonji, A. A. Oyekanmi, D. A. C. Akintobi and C. O. Aremu

May 2010

Screening of barley genotypes for drought tolerance by agro-physiological traits in field condition

  In a two-year experiment, 11 barley genotypes from ICARDA and one landrace from Iran were tested under optimum and drought stress conditions. Phenological and physiological traits such as relative water content (RWC), osmotic adjustment (OA), stay-green (SG), plant height (PLH), days to heading (DHE), days to maturity (DMA) and seed indexes such as 1000-grain weight (TGW), number of grain per spike (G/S) and...

Author(s): B. Vaezi, V. Bavei and B. Shiran

May 2010

Influence of hydro-priming duration on field performance of pinto bean (Phaseolus vulgaris L.) cultivars

A factorial experiment (using RCB design) with 3 replications was conducted in 2008, in order to evaluate the effects of hydro-priming duration (P1, P2, P3 and P4: 0, 7, 14 and 21 h, respectively) on field performance of three pinto bean (Phaseolus vulgaris L.) cultivars (Talash, COS16 and Khomain). The highest seedling establishment, ground cover, plant biomass and grain yield per unit area were recorded for P2...

Author(s): Kazem Ghassemi-Golezani, Afsaneh Chadordooz-Jeddi, Safar Nasrullahzadeh and Mohammad Moghaddam

May 2010

Determination of the best blackberry cultivar using various statistical techniques

  This study was conducted to determine the best blackberry cultivar using jointly various statistical techniques such as Chi-square, G, and Correspondence statistics. For this aim, data of pomological traits such as fruit weight, cane number, cane diameter, cane height, cane yield per plant of Ness, Cherokee, Arapaho, Chester Thornless, Navaho, Black Satin, Dirksen Thornless and Jumbo cultivars were collected...

Author(s): Ecevit Eyduran, S. Peral Eyduran, Khalid Mahmood Khawar and Y. Sabit Agaoglu

May 2010

Labor force participation of women in forest villages and their income status: A case study of Trabzon

  All around the world, women are mostly responsible from nourishing their families. To perform this, women conduct respective economic activities either unpaid in their households, or paid in the public sphere. In a seemingly more agriculture-oriented country of Turkey, while women’s labor force participation is higher than that of men’s in rural areas, most of the agricultural and stock-breeding...

Author(s): Devlet Toksoy and Süleyman Alkan

May 2010

Estimating the effects of optimum bucking on the economic value of Brutian pine (Pinus brutia) logs extracted in Mediterranean region of Turkey

  The recent socio-economic changes have escalated the consumer needs mainly on industrial wood products among other direct use values of forest resources in Turkey. Besides, the economic value of wood based products represents the highest proportion in total economic value of forest resources in Turkish forestry. The most important wood based product type is considered to be logs that are produced by bucking...

Author(s): Hasan Serin, Abdullah E. Akay and Mehmet Pak

May 2010

Prevalence and distribution survey of an invasive alien weed (Parthenium hysterophorus L.) in Sheka zone, Southwestern Ethiopia

  Parthenium hysterophorus L., an invasive annual weed, is originated in tropical America and spread to Asia, Australia and Africa. In Ethiopia, it appeared first in Harrarghie in the 1970’s and it later spread to Central, Northern, Southeastern and Southern Ethiopia. Currently, it is spreading to Southwestern Ethiopia, but its prevalence and distribution has not been assessed and documented....

Author(s): Mohammed Worku

May 2010

The economic importance of draught oxen on small farms in Namibia’s Eastern Caprivi Region

  The main aim of this study was to analyse and document the value of smallholder farmers’ use of Draught Animal Power (DAP) systems in the Eastern Caprivi Region and to test the economic viability of DAP usage versus using tractors. This study applied Rapid Rural Appraisal techniques (RRA), including a survey. Semi-structured interviews were conducted with 312 farmers at their farms and data was gathered...

Author(s): Mogos Y. Teweldmehidin and A. B. Conroy

May 2010

Technical efficiency of the small scale sugarcane farmers in Swaziland: A case study of Vuvulane and Big bend farmers

  The technical efficiency of the small scale sugarcane farmers of Swaziland is investigated using stochastic frontier production functions for Vuvulane scheme and Big bend individual farmers. The stochastic production frontier function model of the Cobb-douglas type used incorporates a model for the technical inefficiency effects. Farm-level cross-sectional data were collected from 40 sugarcane schemes and 35...

Author(s): S. Dlamini, J. I. Rugambisa, M. B. Masuku and A. Belete

May 2010

Effect of the size of perforated screen and blade-rotor clearance on the performance of Engleberg rice whitener

  An experiment was conducted to study the effects of two engineering factors on the performance of Engleberg rice whitener as the most common machine for rice milling in the North of Iran. Three levels of the size of perforated screen (No. 22, 24 and 26) and three levels of the blade-rotor clearance (8, 10 and 12 mm) were considered for the experiment. Breakage percent and whiteness of milled rice and output...

Author(s): Saeed Firouzi, Mohammad Reza Alizadeh and Saeed Minaei

May 2010

Genetic improvement of agronomic and quality traits of wheat cultivars introduced to temperate regions of Iran during 1942 - 2007

  Wheat is an important food crop to mankind. In order to assess the effects of plant breeding on yield and other characteristics of wheat cultivars released by Iran Seed and Plant Improvement Institute during the period of 1942 to 2007, 21 spring wheat cultivars recommended for temperate regions were evaluated for two successive years for yield, agronomic traits and quality attributes. Results showed that...

Author(s): Manoochehr Khodarahmi, Alireza Nabipour and Kaveh Zargari

May 2010

The determinants of banana market commercialisation in Western Uganda

Increasing crop market participation has the potential to help agricultural households unlock the well known benefits of trade. In this article a double hurdle model and a tobit model are used to identify factors that influence market participation decisions among Ugandan banana growers. This article is motivated by the need to better understand the drivers of commercialisation for a perishable crop. Data for the...

Author(s): Adam Komarek